CEA Safety Regulations 2010 → CEA Safety Regulations 2023

Same text:

Carried over word for word (or nearly).

Minor changes:

Most of the wording kept; some words changed.

Expanded:

The old wording kept, with new text added.

Revised:

Substantially rewritten.

Merged:

Folded into a broader CEA 2023 regulation.

Not carried over:

No counterpart found in CEA 2023.

1. CEA 2010 · Reg 1Short title and CommencementExpandedCEA 2023 · Reg 1Short title and Commencement
   What changed · 81% of the old wording kept

   (2) lheyThese regulationsshall come into force on the date of their finalpublication in the Official Gazette. (3) Scope and extent of application. – These regulations shall be applicable to electrical installation including electrical plant and electric line, and the person engaged in the generation or transmission or distribution or trading or supply or use of electricity.

2. CEA 2010 · Reg 2DefinitionsRevisedCEA 2023 · Reg 2Definitions
   What changed · 57% of the old wording kept

   (a) "Act" means the Electricity Act,2003;(b) "accessible"“accessible”means within physical reach without the use of any appliance or special effort; (c) "ampere"“aerial bunched cable”means polyethylene or cross linked polyethylene insulated cable having three or four cores with aluminium conductors twisted overa unit of electric current and is a constant current which, flowing in two parallel straight conductors of infinite:length of negligible cross section and placed at a distance of one meter apart in a vacuum will produce a force of 2x10-7 Newton per meter length between the conductors; "apparatus "meanscentral bare or insulated aluminium alloy or steel messenger wire; (d) “apparatus” meanselectrical apparatus and includes all machines, fittings, (d)accessories and appliances in which conductors are used; (e) "bare"“bare”means not covered with insulating materials; (f) "'cable"“bonding conductor” means the inter connecting conductors for the purpose of equipotential bonding with the main earth; (g) “cable”means a length of insulated single conductor(solidconductor, solidor stranded)stranded,or oftwo or more such conductors each provided with its own insulation, which are laid up together. Such insulated conductor or conductors may or may not be provided with an overall mechanical protective covering; (g) . "circuit"together; (h) “chartered electrical safety engineer” means a person authorised by the Appropriate Government as referred in regulation 6; (i) “circuit”means an arrangement of conductor or conductors for the purpose ofconveying electricity and forming a system or a branch of a system; (h) "circuit breaker"system and protected at the origin; (j) “circuit breaker”means a mechanical switchingdevice, capable of makingmaking, carryingand breaking thecurrents under normalcircuit conditions and also making, carrying for a specified duration and breaking currentsunder all conditions, and unless otherwise specified, so designed as to break the current automaticallyspecifiedabnormal conditions; "concentric cable"circuit condition; (k) “concentric cable”means a composite cable comprising an inner conductor which is … insulation of, and more or less around, the inner conductor; (j) "conductor"(l) “conductor”means any wire, cable, bar, tube, rail or plate used for conducting electricity and so arranged as to be electrically connected to a system; (k) "conduit"electricity; (m) “conduit”means rigid or flexible metallic tubing or mechanically strong and … cables may be drawn for the purpose of affording it or themformechanical protection; (l) "connected(n) “connectedload" means the sum of the ratings in kilowatt or kilovolt-ampereof the electricity consumingapparatus connected to a consumer's installation; "covered,the installation of the consumer which may be connected simultaneously to the source; (o) “contact potential” means electric potential difference across the junction of two different objects in the absence of electric current; (p) “coveredwith insulating material"material”means adequately covered with (m)insulating material of such quality and thickness as to prevent danger; (n) ' 'cut out"(q) “cut out”means any appliancedevicefor automatically interrupting the transmissionflowof electricity through the conductor when the current risesincreasesabove a pre-determined amount,value,and shall also include fisiblefusiblecut-out; (o) "danger"(r) “danger”means dangerriskto health or danger tolife or any part of body from electricshock, burn or other injuryinjuriesto persons,person,or property, or from fire or explosion, attendant upon the generation, transmission, transformation, conversion, distribution or use of electricity; (p) "dead"(s) “dead”means at or about earth potential and disconnected from any live system. Itsystem andis used only with reference to current carrying parts when these parts are not live. (q) "designated person"live; (t) “designated person”means a person designatedwhose name appears in the record maintainedunder sub-regulation (2) ofregulation 3; (r) "earthed"3 by the supplieror "connected with earth"consumer, or the owner, agent or manager of all electrical installations including mine, or the agent of any company operating in an oil-field or the owner of a drilled well in an oil-field or a contractor; (u) “earthing”means connected withconnection ofthe exposed conductive and extraneous parts of an installation to the main earthing terminal of that installation or connection of neutral of transformer or generator or equipment togeneral mass of earth or earth bonded bar of that installation; (v) “earthing arrangement or earthing system” means all the electric connections and devices involvedin such manner as to ensure at all timesthe earthing of a system,an immediate discharge of electricity without danger; (s) "earthing system"installation or equipment; (w) “electric vehicle” means any vehicle propelled, partly or wholly, by an electric motor drawing current from a rechargeable storage battery, or other portable energy storage devices or other self-generating electric source; (x) “electric vehicle supply equipment”means an electrical systemelementin which allelectric vehicle charging infrastructure that supplies electric energy for rechargingthe conductors and appliances are earthed; (t) "enclosed sub-station"battery of electric vehicles; (y) “enclosed substation”means any premises oforenclosure or part thereof, being large enough to admitenablethe entranceentryof a person after the apparatus therein is in position, … converting electricity to or from a voltage at or exceeding 650 Vsix hundred fifty volt(other than transforming or converting solely for the operation of … or otherwise regulating the electricity, and includes the apparatus therein; (u) "enclosed switch-station"(z) “enclosed switching station”means any premises or enclosure or part thereof, being large enough to admitenablethe entranceentryof a personperson,after the apparatus therein is in position, containing apparatus •for switching, controlling or otherwise regulating electricity at or exceeding 650 Vsix hundred fifty voltbut not for transforming or converting electricity(otherelectricity (otherthan for transforming or converting solely for the operation of switchgear or instruments)andinstruments) andincludes the apparatus therein, (v) "flameproof enclosure"therein; (za) “equipotential bonding” means an electrical connection putting various exposed conductive parts and extraneous conductive parts at a substantially equal potential; (zb) “exposed conductive part” means a conductive part which can readily be touched and which is not normally live, but which may become live under fault conditions; (zc) “extraneous conductive part” means a conductive part not forming part of the electrical installation and liable to introduce an electric potential, generally the electric potential of a local earth; (zd) “flameproof enclosure”means an enclosure for electrical machinery or apparatus that will withstand, whenin whichthe covers, or other access doorsparts which can ignite an explosive atmosphereare properly secured,placed and which can withstand the pressure developed duringan internal explosion of an explosive mixture and which preventsthe inflammable gas or vapour which may enter or originate inside the enclosure, without suffering -damage and without communicating the internal flammation (or explosion)spread of explosionto the external inflammable gas or vapour in which it is designed to be used, through any joints or other structural openings inexplosive atmosphere surroundingthe enclosure; (w) "flexible cable"(ze) “flexible cable”means a cable consisting of one or more cores each … and the physical properties of the wires and insulating material being such asareto afford flexibility. (x) "guarded"allow flexibility; (zf) “guarded”means covered, shielded, fenced or 'otherwise protected by means of suitable casings, barrier, rails or … approach by persons or objects to a point of danger; (y) "hand-held(zg) “hand-heldportable apparatus"apparatus”means an apparatus which is so désigned asdesignedto be capable of being held in the hands and moved while connected to a supply of electricity; (z) "High Voltage Direct Current (HVDC)"(zh) “high voltage direct current”means Direct Current (DC)direct currentvoltage one hundred kilovolt andabove 100000 Voltsused for transmission of power. (za) "inspectorpower; (zi) “inspectorof mines"mines”means an Inspectorinspectorappointed under the Mines Act,1952mines Act, 1952(35 of 1952); (zb) "installation"(zj) “installation”means any composite electrical unit used for the purpose of generating, transforming, transmitting, converting, distributing or utilizing elecfricity; (zc) "intrinsically safe"electricity; (zk) “Installation Manager” has the same meaningas applied to apparatusdefined in the Oil Mines Regulations, 2017; (zl) “intrinsically safe circuit” means any circuit in which any sparkor associated 'circuits shall denote that ax-a" sparking that may occurany thermal effect producedin the conditions specified in the relevant standards, which includenormal working is incapableoperation and specified fault conditions and not capableof causing explosionignitionof inflammablea given explosivegas or vapour;atmosphere; (zm) “intrinsically safe apparatus”means method of protection byan electrical apparatus inwhich (zd) "increased safety type 'e' additional measuresall the circuitsare -applied so as . to give increased security against the possibility of excessive temperatures and of occurrence of arcs and sparks in apparatus which does not broduce arcs or sparks in norrnal service; (ze) "lightning arrestor"intrinsically safe circuits; (zn) “lightning arrester”means a device which has the property of diverting to … high amplitude applied to its terminals and is capable of intermpting flow currentinterrupting follow on current,if presentpresent,and restoring itself thereafter to its original operating conditions; (zo "linked switch"(zo) “linked switch”means a switch with all the poles mechanically linked so asto operate sixnuitzneous._ (zg) "live" electricaliysimultaneously; (zp) “live” means electricallycharged; (zh) "metållic covering*'(zq) “load despatcher” means the personnel engaged in operation of Load Despatch Centre; (zr) “metallic covering”means mechanically strong metal covering surrounding one or more conductors; (Zi) "meter" means a device suitable for measuring, indicating and recording consumption of elecåicity or any other quantity related with electrical system and(zs) “mine”shall include, wherever applicable, other equipment such as Current Transformer (CT), Voltage Transformer (VT) or Capacitor Voltage Transformer (C VT) with necessary wiring and accessories; (zj) "mine" hashavethe same meaning as defined in clause (j) sub-section (1) of section 2 ofthe Mines Act, 1952 (35 of 1952); (zk) "neutral conductor"(zt) “neutral conductor”means that conductor of a multi-wire system, the voltage of which is normally intermediate between the voltages -ofofthe other conductors of the system and shall also include return wire of theasingle phase system; (ZI) "occupier"(zu) “notified voltage” means a voltage notified by the Appropriate Government under intimation to the Authority for the purpose of specifying the voltage level up to which self-certification is to be carried out under regulation 32 and regulation 45; (zv) “occupier”means the owner or.orperson in occupation of the premises where electricity is used or proposed to be used; (zrn) "ohm" means a unit of electrical resistance and is the electrical resistance between two points of a conductor when a constant potential difference of one volt, applied to these points produces a current of one ampere in the conductor, provided no electromotive force is generated in the conductor; (zn) "open sparking"(zw) “open sparking”means sparking which owing to'tothe lack of adequate provisions for preventing the ignition of •inflammable gas extemalexternalto the apparatus would ignite such inflammable gas; (zo) "overheäd line" means any electric supply line which is placed above ground and in the open air but excluding live rails(zx) “owner or agent or managerof a traction system; (zp) "owner" means the company or body corporate or association or body of individuals, whether incorporated or not or artificial juridical person which owns or operates or maintains Electric Plants and Lines; (zq) "owner", "agent" and "manager" of a minemine”have the same meanings as are assigned to them in the Mines Act,1952(35Act, 1952 (35of 1952); (zr) "poles" means the phase terminals of a- Switch. (zs) "portable apparatus"(zy) “portable apparatus”means an apparatus which is so designed as to be capable of being moved while in operation; (zt) "portable(zz) “portablehand lamp"lamp”means a portable light-fitting provided with suitable handle, guard and flexible cord connected-toconnected toa plug; (zu) "Schedule"(zza) “protective conductor”means a schedule to these regulations. (zw) "section"conductor used for protection against electric shock and intended for connecting together which may include exposed conductive parts, extraneous conductive parts, the main earthing terminal, and the earthed point of the source, or an artificial neutral; (zzb) “self-certification”means a Sectioncertification by a supplier or owner or consumer in the prescribed format as required under regulation 32 and regulation 45; (zzc) “socket outlet” means an electrical device that is for fixing at a point where fixed wiring terminates, and provides a detachable connection with the pinsof the Act, (zv) "span"a plug, and has two or more contacts and includes a cord extension socket attached to a flexible cord that is permanently connected to installation wiring; (zzd) “span”means the horizontal distance between two adjacent Supportingsupportingpoints of an overhead conductor; •(zw). "street box"(zze) “standard”means a totallyIndian Standard and in absence of Indian Standard, International Electrotechnical Commission Standard, Institute of Electrical and Electronic Engineers Standard, European Norms Standard in the sequence of their appearance unless stated otherwise; (zzf) “street box” means anenclosed structure, either above or below ground containing apparatus for transforming, switching, confroilingcontrollingor otherwise regulating electricity; (n0 "supplier"(zzg) “supplier”means any generating company -ororlicensee from whose system electricity flows into the system of another generating company or licensee or consumer; (zy) "switch"(zzh) “supply lead” means a piece of equipment used to establish the connection between the electric vehicle and either a socket-outlet or a charging point; (zzi) “switch”means a manually operated device for opening and closing or for changing the connection of a circuit; (zz) "switchboard"(zzj) “switchboard”means an assembly including the switchgear for the control of electrical circuits, electric connections and the supporting frame; (zza) "switchiear"(zzk) “switchgear”shall denote.denoteswitches, circuit breakers, cut-outs and other apparatus used for the operation, regulation and control of circuits; (zzb) "system"(zzl) “system”means an.anelectrical system in which all the•theconductors and apparatu-sapparatusare electrically connected to a.acommon source of electric supply; (zzc) "transportable apparatus"(zzm) “telecommunication line” means any equipment, structure and cable designed or intended for use in telecommunication; (zzn) “transportable apparatus”means apparatus which is operated in a fixed position but … capable of being moved readily from one place to another; (zzd) "volt" means a unit of pötential difference of electro-motive force and is the difference of electric potential which exists between two points of a conductor carrying •a -constant current of one ampere, when the power dissipated between these points is one watt; (zze) "voltage" means the difference of electric potential .measured in Volts between any two conductors or between any part of either conductor and the earth as measured by a volfineter meeting Indian Standards; (zzf) "watt'(zzo) “watt”is a unit of active powerpower;and "MW'(zzp) “MW”means megawatt and is equal-equalto 106 watts. (2) Words and expressions used hereinand not defined in these regulations but défineddefinedin fretheAct shall have the meanings respectively assigned to them in the Act. Chapter II Designated Person, Chartered Electrical Safety Engineer, Training and Certification

3. CEA 2010 · Reg 3Designating person(s) to operate and carry out the work on electrical lines and apparatusMinor changesCEA 2023 · Reg 3Designated person to operate and carry out the work on electrical lines and apparatus
   What changed · 85% of the old wording kept

   (2) The supplier or consumer, or the owner,owner oragent or manager of a mine, or theagent of any company operating in an oil-field or the owner of a drilled well in an- oil fieldan oil-fieldor a contractor referred to oninsub-regulation (l)(1)shall maintain a•registera record, in paper or electronic form,wherein the names of the designated personspersonand the purpose for which they are engaged,designated,shall be entered. (3) No person shall be designated under sub-regulation (l)(1)unless,- (i) he possesses a certificate of competency or electicalelectricalwork permit, issued by the Appropriate Govemment.Government; and(ii) his name is entered in the register referred to in sub-relgulationsub-regulation(2).

4. CEA 2010 · Reg 4Inspection of designated officers and other safety measuresMinor changesCEA 2023 · Reg 4Inspection of record of designated person
   What changed · 81% of the old wording kept

   (2) If on inspection, the Electrical Inspector finds that the designated person does not fulfill the required qualification,comply with sub-regulation (3) of regulation 3,he shall recommend the removal of the name of such personspersonfrom the register.record.

5. CEA 2010 · Reg 5Electrical Safety OfficerRevisedCEA 2023 · Reg 5Electrical Safety Officer
   What changed · 52% of the old wording kept

   (2) The ElectricalSafety Officer shall be anpossess a degree inElectrical Engineering degree holderwith at least five years experience in operation and maintenance of electrical installations or a Diploma in Electrical Engineeringwith at least ten years ofexperience in operation and maiotenancemaintenanceof electricity plants or an Elecfrical Engineering Diploma holderelectrical installations: Provided that the Electrical Safety Officer designated for mines shall possess educational qualification as mentioned in sub-regulation (2)with at least fifteenfiveyears of experience in operation and maintenance of electric plant.electrical installations relevant to mines.(3) The El trical Safety Offcer designated under sub-regulation (l), shall ensure periodic ection of such installations, get them tested and keep a record thereof and such records shall be made available to the Electrical Inspector if and when required. (4)For every electrical installation includingfactory registered under Factorythe FactoriesAct, 1948, where1948 (63 of 1952) withmore than 250 kW connected load and mines and oil-field as defined in the Mines Act, 1952 (35of electrical load is connected,1952), with more than 2000 kW connected load, the owner of the installation orthe management of the factory shalior mines, as the case may be, shalldesignate a personElectrical Safety Officer under sub-regulation (1) andhaving qualification and experiencespecified in sub-regulation (2), for ensuring the observancecomplianceof the safety provisions laid under the Act and the regulations made thereunder, whothereunder: Provided that the Electrical Safety Officershall periodicallycarryout recommended periodic tests as per the relevant standards, andinspect such installation, get them testedinstallations at intervals not exceeding one year,and keep a record thereof in Form I or Form II or Form III or Form IV, as the case may be, of Schedule II of these regulations; test reports and a register of recommendations in regard with safety duly acknowledged by owner; compliances made thereafter;and such records shall be made.madeavailable to the Electrical Inspector if.andInspector, as andwhen required.

6. CEA 2010 · Reg 6Safety measures for operation and maintenance of electric plantsRevisedCEA 2023 · Reg 7 · probableSafety measures for operation and maintenance of generating station
   What changed · 54% of the old wording kept

   (2) The Engineers and Supervisors engaged or appointed for operation and maintenance of generating station shall have successfully undergone the type of training as specified by the Authority in its guidelines issued under sub-regulation (4) from time to time, within two years from the date of engagement or appointment. (3)The Technicians to assist engineersEngineersor supervisorsSupervisorsshall possess a certificate in appropriate trade, preferably with a two years course from aanIndustrial Training Institute recognizedrecognisedby the Central Government or the State Government. (3) Engineers, superhorsGovernmentand Technicians engaged for operation and maintenance of electric plants shouldshallhave successhlllysuccessfullyundergone the type of training as specifiedin Schedule-I.specified in sub-regulation (4), within two years from the date of engagement or appointment:Provided that the existing employeesemployees, as on the date of notification of these regulations, who are extending technical assistance to Engineers or Supervisors and do not have requisite qualification as mentioned in this regulation,shall have to undergo the training either from Power Sector Skill Council or from training institute recognised by the Authority for carrying out trade specific course as per the guidelines issued by the Authority and get certificate asmentioned in sub-regulation (3)abovewithin threetwoyears from the date of coming into forcenotificationof these regulations. (4) *IheThe Authority shall issue guidelines for the training for operation and maintenance of generating station within six months of the notification of these regulations: Provided that the duration and content of the training course shall be as specified in the guidelines. (5) Theowner of every thermal powergenerating station and hydro power plant together with their associated sub-stationshall arrange for training of personnel engaged inor appointed to operate and undertake maintenance ofthe operation and maintenance Of hisgenerating station ah)ttg with associated sub-station in hisfrom itsown institute or any other institute recognizedrecognisedby the Central GOvemmentAuthorityor State Government as perthe State Government. Piovided that separateguidelines and shall maintain records of the assessment of these personnel issued by thetraining institute in the format prescribed in guidelines and such recordsshall be givenmade availableto the persons engageriElectrical Inspector, as and when required. (6) The certificate of recognition of the training institute under these regulations shall be displayed by the Institute on its website at home page. (7) Notwithstanding anything containedin operation and maintenancesub-regulation (4), the training syllabus may be customised by the ownerof thennal power stations and hydro power stations inchiding associated sub-stations.the generating station of capacity below 100 MW owning the training institute for the purpose of imparting training to its employees under intimation to the Authority.

7. CEA 2010 · Reg 7Safety measures for operation and maintenance of transmission, distribution systemsRevisedCEA 2023 · Reg 8Safety measures for operation and maintenance of transmission and distribution systems
   What changed · 72% of the old wording kept

   (3) . Engineers, supervisors(2) The Engineersand TechniciansSupervisorsengaged for operation andor appointed to operate or undertakemaintenance of transmission and distribution systems electric plantsshall have successfully undergone the type of training specified in guidelines as per sub- regulation (4), within two years from the date of engagement or appointment. (3) The Technicians to assist Engineers or Supervisors shall possess a certificate in appropriate trade, preferably with a two years course from an Industrial Training Institute recognised by the Central Government or State Government andshould have suecgssfully-u.ndergonesuccessfully undergonethe type of training as specified in Schedule-uguidelines as per sub- regulation (4), within two years from the date of engagement or appointment:Provided that the existing employeesemployees, as on the date of notification of these regulations, who are extending technical assistance to Engineers or Supervisors and do not have requisite qualification as mentioned in this regulation,shall have to undergo the training either from Power Sector Skill Council or from training institute recognised by the Authority for carrying out trade specific course as per the guidelines issued by the Authroity and get certificate asmentioned in sub-regulation (3)abovewithin threetwoyears from the date of coming into forcenotificationof these regulations. (4) The Authority shall issue guidelines for the training for operation and maintenance of transmission, distribution systems within six months of the notification of these regulations: Provided that the duration and content of the training course shall be as specified in the guidelines. (5)Owner of every transmission or distribution system shall arrange for training of their personnel engaged in the operationor appointed to operateand undertakemaintenance of transmission and distribution systemsystem,in his own institute or any other institute recognizedrecognisedby the Central GovernmentAuthorityor State Government.Government as per the guidelines and shall maintain records of the assessment of these personnel issued by the training institute in the format prescribed in guidelines and such records shall be made available to the Electrical Inspector, as and when required.

8. CEA 2010 · Reg 8Keeping of records and inspection thereofMinor changesCEA 2023 · Reg 10Keeping of records and inspection thereof
   What changed · 93% of the old wording kept

   (2) The Electrical-ElectricalInspector shall supply a copy of the report of inspection referred to in sub-regulation (l),(1),to the generating company or licensee, as the case may be.

9. CEA 2010 · Reg 9Deposit of mapsRevisedCEA 2023 · Reg 11Deposit of maps
   What changed · 25% of the old wording kept

   Deposit of maps.- When •.icense has been granted, two sets of maps showing, as regards such licensee, the particulars specified in application for license shall be signed and dated to correspond with the date of notification of the grant of the license by an officer designated by the Appropriate Commission in thig behalf,Provided thatone set of suchmaps shall be retained by the saiddesignatedofficer and the other onesetshall be furnished to the licensee.

10. CEA 2010 · Reg 10Deposit of printed copiesMinor changesCEA 2023 · Reg 12Deposit of printed copies
    What changed · 95% of the old wording kept

    (2) Every such licensee shall, within the aforesaid period of thirty days, supply free of charge one copy of the licenselicencealong with the relevant maps to every local authority within the area of supply and shall also make necessary arrangementarrangementsfor the sale of printedphysical or digitalcopies of the licenselicenceand maps to all persons applying for the same, at a price to be notified by the Appropriate Government from time to time.

11. CEA 2010 · Reg 11Plan for area of supply to be made and kept open for inspectionRevisedCEA 2023 · Reg 13Plan for area of supply to be made and kept open for inspection
    What changed · 75% of the old wording kept

    (2) Every plan shall be drawn to such horizontal and vertical scale as the Appropriate Commission may require.require:Provided that no scale shall be required unless maps of … the time being available to the public. (3) Every plan and•sectionand sectionso made or corrected, or a copy thereof, marked with the date when it was made or corrected,'corrected,shall be kept by the licensee at his principal office or place Ofofbusiness within the area of supply, and shall at all reasonable times be Openopento the inspection of all applicants, and copies thereof shall be supplied. Provided(4) The licensee shall ensurethat existingall newand old plans and sections and underground distribution network shall be converted to electronic form within three years from the•date of commencement of these regulations. (4) Global Positioning System (GPS) mapping or mapping through any other latest technology, of existing and old plans and sections shall be completed within five years from the date of commencement of these regulations and newplans and sections shall be compatible to the Global Positioning … where the licensee is not a local authority, by the •locallocalauthority, if any, concerned, supply free of charge to such … supplied by the licensee to every applicant on the payment •ofofsuch fee as the Appropriate Commission may, by regulation, speci&.specify.Chapter III General safety requirements

12. CEA 2010 · Reg 12General safety requirements pertaining to construction, installation, protection, operation and maintenance of electric supply lines and apparatusRevisedCEA 2023 · Reg 14Regulation 14
    What changed · 50% of the old wording kept

    (2) Save as otherwise provided in these regulations, the relevant code of practice of the Bureau of Indian Standards orstandards includingNational Electrical Code, if any, mayCode and National Building Code shallbe followed to carry out the purposespurposeof this regulationthese regulations and where relevant Indian standards are not available, International standards shall be followedand in the event of any inconsistency, the provisions of these regulaionsregulationsshall prevail. (3 )(3)The material and apparatus used shall conform to the relevant specifications of thé Bureau of Indian Standards or Intemational Ele1m-Technical Commission where such specifications have already been laid down.standards.(4) All elec&icalelectricalequipment shall be installed above the Mean SeaHighest FloodLevel (MSL) as declared by local Municiple Authoritiesand where such equipment is not possibleto be installed in the basement, consumerabove Highest Flood Level, itshall ensure that the design of the basement shouldbe suchensuredthat there is no seapageseepageor leakage or logging of water in the basement. (1) The supplier shallwater.

13. CEA 2010 · Reg 13Service lines and apparatus on consumer's premisesMinor changesCEA 2023 · Reg 15Service lines and apparatus on consumer’s premises
    What changed · 96% of the old wording kept

    (2) ServiceThe servicelines placed by the supplier on the premises of a … the insulation. (3) The consumer shall, as far as circumstances permit,.permit,take precautions for the safe custody of the equipment on his premises belonging to•theto thesupplier. (4) The consumer shall also ensure that the installation of the licenseeunder his control is maintainedkeptin a safe condition.

14. CEA 2010 · Reg 14Switchgear on consumer's premisesSame textCEA 2023 · Reg 16Switchgear on consumer’s premises
15. CEA 2010 · Reg 15Identification of earthed and earthed neutral conductors and position of switches and switchgear thereinMinor changesCEA 2023 · Reg 17Identification of earthed and earthed neutral conductors and position of switches and switchgear therein
    What changed · 87% of the old wording kept

    (i) an indication of a permanent nature shall be provided … the conductor which is to be connected thereto, to enable Suchsuchconductor to be distinguished from any live conductor and such indication shall be provided-provided as per relevant standards, namely: –(a) where the earthed or earthed neutral conductor is the … of supply; (b) where a conductor forming part of a consumer'sconsumer‟ssystem is to be connected to the supplier'ssupplier‟searthed or earthed neutral conductor, at the point where such connection is to be made; and(c) in all other cases, at a point corresponding to the point of commencement of supply or at such other points as may be approved by an Electrical Inspector.supply.(ii) no cut-out, linklink, switchor switchcircuit breakerother than a linked-switchlinked switcharranged Itotooperate simultaneously on the earthed or earthed neutral conductor and … conductor of a multi-wire system or in any conductor connected thereto.thereto:Provided that the above requirement shall not apply in case of- (a)ofa link for testing purposes, or (b)a switch for use incontrolling a generator or transformer.

16. CEA 2010 · Reg 16Earthed terminal on consumer's premisesRevisedCEA 2023 · Reg 18Earthed terminal on consumer’s premises
    What changed · 30% of the old wording kept

    Provided that in the case 0kofinstallation of voltage exceeding 250 V the consumer shall, in addition to the aforementioned earthing arrangement, provide his own earthing system with an independent electrode. Provided further thatelectrode andthe supplier may not provide anysame shall be interlinked with theearthed terminal mentionedin the case of installations already connected to his system on or before the date to be specified by •the State Government in this behalf if he is satisfied that the consumer's earthing arrangement is efficient.sub-regulation (1) through a suitable link.(2) The.Theconsumer shall take.takeall reasonable precautions to prevent mechanical damage to the earthed,earthedterminal and its lead belonging to the supplier. (3) The supplier may recover from the consumer the cost of installation on the basis of schedule of charges published by him in advance and where such schedule of charges is not published, the procedure laid down, in regulation 63 shall apply. Exp nation.- For the purposes of sub-regulation (1), the expression "point of comm ncement of supply of electricity" shall mean the point' at the incoming I of the switchgear installed by the consumer.

17. CEA 2010 · Reg 17Accessibility of bare conductorsMinor changesCEA 2023 · Reg 19Accessibility to bare conductors
    What changed · 91% of the old wording kept

    (a) ensure that they are inaccessible;inaccessible to general public;(b) provide in readily accessible position switches for rendering them … such other safety measures as are specified in the relevant Indian Standards.standards.

18. CEA 2010 · Reg 18Danger NoticesMinor changesCEA 2023 · Reg 20Danger Notices
    What changed · 97% of the old wording kept

    (a) every motor, generator, transformer and other electrical plant and … lines of voltage exceeding 650 V which can be easily climbédclimbedupon without the aid of ladder or special appliances; and(c) luminous tube sign requiring supply, X-ray and similar high … be affixed as near as possible thereto, or the word 'danger'„danger‟and the voltage of the apparatus concerned shall be permanently … the generator, motor, transformer or other apparatus is within an enclosureone notice affixed to the said enclosure shall be sufficient for the purposes of this regulation. Explanation-Explanation. –For the purposepurposesof clause (b) rails, tubular poles, wooden supports, reinforced cement concrete poles and pre stressedcement concrete poles without steps, I-sections and channels, shall be deemed as supports which cannot be easily climbed uponupon.

19. CEA 2010 · Reg 19Handling of electric supply lines and apparatusExpandedCEA 2023 · Reg 21Handling of electric supply lines and apparatus
    What changed · 83% of the old wording kept

    (2) Every person who is working on an electric suppiysupplyline or apparatus or both shall be provided withwith, – (a) personal protective equipment,tools and devipesdevicessuch as gloves,rubber shoes,gloves andsafety belts, ladders,footwear suitable for working voltage, safety belts for working at height, nonconductive ladder,earthing devices, helmets,devices of appropriate class, helmet,line testers,tester,hand lineslines, voltage detectorand thé like.hand tools as per the relevant standards; and (b) any other devicefor protecting him from mechanical and electrical injury due to arc flashand such personal protective equipment,tools and devices shall conform to the relevant standards andshall always be maintained in sound and efficientworking condition. (3) No person shall operate and undertake maintenancework on any livepart or whole of an electrical plant orelectric supply line or apparatus and no person shall assist such person on such work, unless he is designated in that behalf,behalfand takesobservesthe safety precautions given in Schedule-III. [PARTs111—Sæ.f]Part-I, Part-II, Part-III and Part-IV, as the case may be, of Schedule I.(4) Every telecommunication line on supports carrying aan overheadline of voltage exceeding 650 V but not exceeding 33 … be deemed to be a line of voltage exceeding 650 V.V: Provided that prior permission shall be taken from the concerned licensee before laying telecommunication lines on electric supports.(5) All non2currentFor the safety of operating personnel, all non-currentcarrying metal parts of switchgear and control panels shall be properly earthed and insulating floors or mat conforming -to IS-15652: 2006,to the relevant standards,of appropriate voltage level shall be provided in front and rearof the panels for the safety of operating personnel.where such personnel are required to carry out operation, maintenance or testing work.(6) All panels shall be painted with the description of itstheiridentification at front and at the rear.

20. CEA 2010 · Reg 20Supply to vehicles and cranesMinor changesCEA 2023 · Reg 22Supply to vehicles and cranes
    What changed · 93% of the old wording kept

    Supply to vehicles and cranes.-cranes. –Every person owning•aowning avehicle, Eavellingtravellingcrane, or the like to which elecfricityelectricityis supplied from an external source shall ensure that it … owner shall ensure that the rails are electrically continuous and earthed.earthed at multiple points to ensure equipotential.

21. CEA 2010 · Reg 21Cables for portable or transportable apparatusMinor changesCEA 2023 · Reg 23Cables for portable or transportable apparatus
    What changed · 96% of the old wording kept

    (2) Where the protection is by means of metallic covering, … and transportable apparatus working on single phase and three phase supplysupply,respectively and the wirecoremeant to be used for groundearthconnection shall be easily identifiable.

22. CEA 2010 · Reg 22Cables protected by bituminous materialsRevisedCEA 2023 · Reg 24Cables protected by bituminous materials
    What changed · 50% of the old wording kept

    (i) any pipe, conduit, or the like into which such electric supply line may have been drawn or placed shall, unless other arrangements are approved by the Electrical Inspector in any particular case, be effectively sealed at its point of entry into any street box so as to prevent any flow of gas to or from the street box, and;(ii) such electric supply line shall be periodically inspected and tested where accessible, and the result of each-sucheach suchinspection and test shall be duly recorded.byrecorded bythe supplier or the owner. (2) The supplier prorthe owner after the coming into force of these regulations,shall not bring into use any further electric supply line … liable to produce noxious or explosive gases on excessive heating.

23. CEA 2010 · Reg 23Street boxesMinor changesCEA 2023 · Reg 25Street boxes
    What changed · 88% of the old wording kept

    (2) Where electric supply lines forming part of different systems … readily distinguishable from one another and all electric supply lines of voltage exceeding 650 Vat or in streetboxes shall be adequately supported and protected so as to prevent risk of damage to or danger from adjacent electicelectricsupply lines. (3) All street boxes shall be regularly inspected for the purpose.ofpurpose ofdetecting åethepresence of gas and if any influx or accumulation is discovered, the owner shall give immediate notice to any authoritythe agencyor company who haveowninggas mainspipelinein the neighbourhoodneighborhoodof the street box and in cases where a street box is large enough to admit the entrance of a person after the electic supply lines or apparatustherein have been placed in positiqn, ampleposition,provision shall be made-made, -(i) to ensure that any gas which may by accident have obtained access to the box shall escape before a person is allowed to enter;enter and the box shall have provision for sufficient cross ventilation;and (ii) for the prevention of danger from sparking. (4) The owners of all street boxes or pillarspillar boxescontaining circuits or apparatus shall ensure that ffeirtheircovers and doors are kept closed and locked and are … only by means of a key or a special appliance. (5) The street or pillar boxes shall be erected with the live parts at least 0.6 metre above the ground level or above the flood level of the local site condition, whichever is higher.

24. CEA 2010 · Reg 24Distinction of different circuitsMinor changesCEA 2023 · Reg 26Distinction of different circuits
    What changed · 87% of the old wording kept

    Distinction of different circuits.-circuits. –The owner of every generating sub-station, junction-boxsubstation, junction boxor pillarinpillar box inwhich there ateareany circuits or apparatus, whether intended for operation at different … permanent nature that the respective circuits are readily distinguishable from one another.each other.

25. CEA 2010 · Reg 25Distinction of the installations having more than one feedMinor changesCEA 2023 · Reg 27Distinction of the installations having more than one feed
    What changed · 90% of the old wording kept

    Distinction of the installations having more than one feed.-feed. –The owner of every installation including sub-station,substation,double pole structure, four pole structure or any other stucturestructurehaving more than one feed, shall ensure by means of indication of a permanent nature, that the installation is readily distinguishable from otter installationsother installations.

26. CEA 2010 · Reg 26Accidental chargingMinor changesCEA 2023 · Reg 28Accidental charging
    What changed · 89% of the old wording kept

    (2) Where alternating current and direct current circuits are installed on diethesame box or support, they shall be so arranged and protected that they shall not come into contact with each other when live.other.

27. CEA 2010 · Reg 27Provisions applicable to protective equipmentRevisedCEA 2023 · Reg 29Provisions applicable to protective equipment
    What changed · 72% of the old wording kept

    (2) Appropriate type offire extinguishersextinguisher conforming to the relevant standards,shall be installed, maintained, periodically inspected andtested for satisfactory operationas per therelevant Indian Standard at -least once a yearstandards for extinguishing and controlling fireand record of such tests shall be maintained. (3) First-aidSufficient number of first-aid boxesor cupboards conspicuously marked and equipped with such contents as the State Government may specifr,specify or as per the relevant standards,shall be provided and maintained at appropriate locationsin every generating station, enclosed sub-station,substation,enclosed switching station and in vehicles used for maintenance •ofoflines so as .totobe readily.readily available andaccessible duringatall working hoursthe timesand all such boxes and cupboards shall, exceptinexcept inthe case of unattended sub-stationssubstationsand switching stations, be kept in ch@rgeunder the chargeof re#ponsibleresponsiblepersons who are trained in first-aid treatment and one of such pe±sonspersonsshall be available during working hours. (4) Two or more … at accessible places in every generating station with capacity of 5 MWfive megawattand above and enclosed sub-station withfsubstation withtransformation capacity of .5 MVAfive megavolt-ampereand above for use in the event of fire or smoke;smoke:Provided that where more•thanmore thanone generator with capacity of 5 MWfive megawattand above is installed in a power station, each generator shall be præ-» idédprovidedwith at least two separate gas masks in an accessible and conspicuous; pia-.e: Provided further that adequateconspicuous place. (5) In every generating station, substation or switching station, an artificial respirator, fire extinguishers, first-aid boxes and gas masks shall be provided and kept in good working condition and locations of the same shall be displayed in the control room and operator cabin. (6) Address and contactnumber of gas masks t.•.e provided bythe owner at every generating stationnearest Doctor, Hospital with a facility for first-aid treatment for electric shockand enlosed sub-station capacity less than 5 MWburns, ambulance serviceand 5 MVA respectively.fire service shall be prominently displayed near the electric shock treatment chart in control room and operator cabin.

28. CEA 2010 · Reg 28Display of instructions for resuscitation of persons suffering from electric shockRevisedCEA 2023 · Reg 30Display of instructions for resuscitation of persons suffering from electric shock
    What changed · 54% of the old wording kept

    (2) The owner of every generating station, enclosed sub-station,substation,enclosed switching station and every factory or other premises to *whichwhichthese regulations apply, shall ensure that all desiB1ateddesignatedpersons employed by him-areor persons engaged or appointed to operate and maintain electrical plants or transmission or distribution systems areacquainted with and are competent to apply the instuctionsinstructionsreferred to in sub-regulation(1). (3) In every manned generating station, or-switching station of voltage exceeding 650 V, an artificial respirator shall be provided and kept in good working condition.

29. CEA 2010 · Reg 29Precautions to be adopted by consumers, owners, occupiers, electrical contractors, electrical workmen and suppliersExpandedCEA 2023 · Reg 31Precautions to be adopted by consumers, owners, occupiers, electrical contractors, electrical workmen and suppliers
    What changed · 90% of the old wording kept

    Provided that in the case of works executed for or on behalf of the Central Government and in the case of installations in mines, oil fieldsoil-fieldsand railways, the CenfralCentralGovernment and in other cases the State Government, may, by notification in the Official Gazette* -Gazette,exempt on such conditions as it may impose, any such work described*describedtherein either generally or in the case of any specified class of consumers,•consumers,suppliers, ownerSownersor occupiers.occupiers: Provided further that in the case of works executed for or on behalf of the Central Government and in the case of installations in mines, oil-fields and railways, an electrical contractor having licence issued by any State Government or Union Territory administration shall not require licence from other State Government in which the works are to be executed.(2) No electrical installation work which has been carried out in contravention of sub-regulation (l)(1)shall either be energised or connected to the works of any supplier.

30. CEA 2010 · Reg 30Periodical inspection and testing of installationsRevisedCEA 2023 · Reg 32Periodic inspection and testing of installations
    What changed · 75% of the old wording kept

    Provided that the electrical installation below or equal to the notified voltage shall be self-certified by the owner or supplier or consumer, as the case may be. (2)The periodical inspectiOnperiodicity of electrical inspection by the Electrical Inspector or the self-certification by the supplier, owner or consumer shall be as directed by the Appropriate Government: Provided that the periodicity of electrical inspectionand testing-of installationsself-certification shall not exceed five years: Provided further that in respect of the electrical installation belonging to mines, oil-fields and railways, such direction shall be issued by the Central Government. (3) The periodic inspection and testing of installationof voltage above- 650 Vequal to or below the notified voltagebelonging to the supplier,owner or supplier or consumer, as the case may be,shall alsobe carried out at intervals not exc*ng five yearsby the Electical Inspector; (3)owner or supplier or consumer and shall be self-certified for ensuring observance of safety measures specified under these regulations and the owner or supplier or consumer, as the case may be, shall submit the report of self-certification to the Electrical Inspector in the Form I or Form II or Form III or Form IV, as the case may be, of Schedule II: Provided that the electrical installation so self-certified shall be considered as duly inspected and tested only after the report of self-certification is duly received by the office of Electrical Inspector and if not acknowledged by the Electrical Inspector within three working days, it shall be deemed to be received: Provided further that the owner or supplier or consumer has the option to get his installation inspected and tested by the Electrical Inspector of the Appropriate Government. (4) Notwithstanding anything contained in sub-regulation (3), every electrical installation covered under section 54 of the Act including every electrical installation of mines, oil-fields and railways shall be periodically inspected and tested by the Electrical Inspector of the Appropriate Government. (5)Where the supplier is directed by the Central Governmentor the State Government, as the case may be, to inspect and test the installation, hesuch suppliershall report on the condition of the installation to the consumer concerned in the FormsFormI, Form II, Form III and Form IV as provided in ScheduleII and III as specified in Schedule-IVand shall submit a copy of such report to-tothe Electrical Inspector; (4)Inspector. (6)The Electrical Inspector may, on receipt of such report, accept … may require and may recommend that the defects may be ractifiedrectifiedas per report; (5)report. (7)In the event of the failure of the owner of any installation to rectify the defects in his instalhtioninstallationpointed dutoutby the Electrical Inspector in his report and within the time indicated therein, Suchsuchinstallation shall be liable to be disconnected under the directions … serving the owner of such installation with a notice for a periodnot less than forty eight hours.hours:Provided that the installation shall not be disconnected in case an appeal is made under sub-rule (i)sub section (2)of rule (8)section 162of "Qualifications, Powersthe Actand Functions of Chief Electrical Inspector and Electrical Inspectors issued by Central Government vide GSR 481 (E) .dated 17.082006 and theappellate authority has stayed the orders of disconnection. (8) It shall be the responsibility of the owner of all installations to maintain and operate the installations in a condition free from danger and as recommended by the manufacturer or by the relevant standards.

31. CEA 2010 · Reg 31Testing of consumer's installationExpandedCEA 2023 · Reg 33Testing of consumer’s installation
    What changed · 91% of the old wording kept

    Provided that in case of voltage level equal to or below the notified voltage, Chartered Electrical Safety Engineer can also test the installation on request of owner.(2) The testing and verifications shall be carried out as per relevant standards. (3) The testing equipment shall be calibrated by a Government authorised or National Accreditation Board for Testing and Calibration Laboratories accredited laboratory at periodical interval as per the periodicity specified by them. (4)The supplier shall maintain a record of test results obtained at each supply point to a consumer, as per the forms providedin a Schedule-V. (3)Schedule III. (5)If as a result of such inspection and test, the … is likely to be dangerous, he shall serve on the applicamapplicanta notice in writing requiring him to make such modifications a9are•necessaryas are necessaryto render the installation-installationsafe and may refuse to connect or reconnect the supply until the required modifications have been completed,completed.

32. CEA 2010 · Reg 32Installation and testing of generating unitsSame textCEA 2023 · Reg 34Generating units required to be inspected by Electrical Inspector
33. CEA 2010 · Reg 33Precautions against leakage before connectionRevisedCEA 2023 · Reg 35Precautions against leakage before connection
    What changed · 17% of the old wording kept

    (i) all equipments shall have the insulation resistance (IR) value as stipulated in the relevant Indian Standards; (ii) on application of 500 V DC between each live-conductor and earth for a period of one minute the insulation resistance of installation and equipment of voltage not exceeding 650 V shall be at leas! OHM or as specified in the relevant Indian Standard; (iii) on applicetion of 2.5 kV•DC between each,live conductor and earth for a period of one minute, the installation and. equipment of Voltage exceeding 650 V but not exceeding}3 XVshall be at least 5 MEGA OHM or as specified in the relevant Indian Standard.(2) If the supplier declines to make a connection undérunderthe provisions of sub- regulation (l) hesub-regulation (1) the suppliershall convey to the applicant the reasons thereof, inwriting for so declining. III—Æ'C 4]

34. CEA 2010 · Reg 34Leakage on consumer's premisesRevisedCEA 2023 · Reg 36Leakage on consumer’s premises
    What changed · 75% of the old wording kept

    (2) If onaftersuch notice being givennotice,the consumef does not give all reasonable facilitiesconsumer fails to provide access to its installationfor inspection and testing of his insullation,testing,or •whenan insulation resiytanceresistanceof the consumef'Sconsumer‟sinstallation is so low as •totoprevent safe use of electricity, the supplier may, and if directed so to doby the Electrical Inspector shall discontinue the supply ofelectricityof electricityto the installation but ofily'onlyafter giving to the consumer forty eight hours notice in writing of discqnnectionfor disconnectionof supply and shall not recommence the supply until he or the ElecticalElectricalInspector is satisfied that the cause of the leakage has been removed.

35. CEA 2010 · Reg 35Supply and use of electricityRevisedCEA 2023 · Reg 37Supply and use of electricity
    What changed · 61% of the old wording kept

    (2) The following controls ofrequisiteof requisitecapacity tQtocarry and break the current shall be placedinstalledas near as possible.after«thepossible after thepoint of commencement of supply so as to be readily accessible and capabEof being easily operated tocapable ofcompletely isolateisolatingthe supply to thestheinstallation, uchsuchequipment being in addition to any equipmentcontrol switchinstalled for contollingindividuaLcontrolling individualcircuits or apparatus, (i) a linked switch widinamely: – Supplied at voltage Control Below 11 kV. Switchfuse unitor a circuit breaker by consumers of voltage which does not exceed 650 V; (ii) a linked switch with fuse or aconsumers. 11 kV and above. Acircuit breaker by a consumer of voltage exceeding 650V but not exceeding 33 kV having aggregate installed tansformer or apparatus capacity up to 1000 KVA to be supplied at voltage upto 11 kV and 2500 KVA at higher voltages (above 11 kV and not exceeding 33 kV); (iii) a circuit breaker by consumers at voltage exceeding 650 V but not exceeding 33 kV having an aggregate installed transformer and apparatus capacity above21000 KVA and supplied at voltage upto II kV- and above 2500 KYA at-higher yoltages (above II kV and not exceeding 33 k.V)•, (iv) a circuit breaker by a consumer of voltage exceeding 33 kV, Provided that where the point of commencement of supply and the consumer apparatüs are near each other, one linked switch with fuse or circuit breaker near the point of commencement of supply shall be considered suffcient.consumers.(3) In case of every transformer the following shall be provided; namely:-provided, namely: –(i) on primary side for transformersof transformer,a linked switch with fuse or gang operated air breakswitch with fuse or circuit breaker of adequate capacity: Provided that üiethelinked switch with fuseon the primary side of the transformer may be of such capacity as to carry the full load current and to bredk•nly åe magietising current.ofbreak only the magnetising current ofthe transformer: Provided firtherfurtherthat for all fransformers: (a)transformerhaving acapacity of 5000 KVA•and above installed before the year 2009;1000 kVAand (b) having a capaciy 1000 KVA and above installed in or after the year 2000,above,a circuit breaker shall bébeprovided: Provided aléoalsothat the linked switch with fuse or gang operated air break switch with fuse or circuit breakeron the primary side of the shafftransformer shallnot berequired for the unit auxiliary Eansformertransformerand generator transformer; (ii) in respect of all Eansfomers installed in or after the year 2000,on the secondary side of all tansformerstransformersa circuit breaker of adequate rating shall be installed: Provided that for suppliers' tansformerssupplier‟s transformersof capacity below 1000 K VA,kVA,a linked switch with fuse or circuit breaker of adequate rating shall be installed on secondaorsecondaryside. (4) Except in the case of composite control gear designed as a unit each distinct circuit is to be protected against excess energenergyby means of asuitable cut-outfuse linkor a circuit breaker of adequate breaking capacity silitablycapacity, suitablylocated and so constructed as to prevent danger from overheating, arcing or scattering of hot metal when it comes into operation and to pernitpermitfor ready renewal of the fusible metal of the cut-outfuse linkwithout danzer.danger.(5) The supply of electricity to each motor or a … linked switch or a circuit breaker or an emergency tripping device.devicewith manual reset of requisite capacity placed in such a position as to be adjacent to the motor or a group ofmotorsof motorsor other apparatus readily accessible to and easily operated by … electricity can be cut off from the motor or group ofmotorsof motorsor apparatus from any regulating switch, •resistanceresistanceof other device associated therewith. (6) All insulating materials shall be chosen with special regard to the circumstances ofas pertheir pronosed useapplicatonand their mechanical sfrengthstrengthshall be sufficient for theirthepurpose andso far as is practicable of such a character or so protectedas to maintain adequately their insulating property under all working conditions in respect of temperaturetemperature, moisture, salinityand moisture; andpollution.(7) Adequate precautions shall be taken to ensure that nodive•partsno live partsare soexposed as to cause danger. (8) Every consumer shall use all reasonable means to ensure that where electricity is supplied by a supplier.the supplier,no person other than the supplier shall interfere with service lines and apparatus placed by the supplier on the premises of the consumer.

36. CEA 2010 · Reg 36Provisions for supply and use of electricity in multi-storeyed building more than 15 metres in heightExpandedCEA 2023 · Reg 38Provisions for supply and use of electricity in multi-storeyed building more than fifteen metre in height
    What changed · 85% of the old wording kept

    (2) Before making,makingan application for commengementcommencementof supply or recommencement of supply.supplyafter an installation has been disconnected for a period of six months or more.more,the owner•or ocupierowner or occupierof a multi'storeyedmulti-storeyedbuilding shall give not less than thirty days.daysnotice in.writingin writingto the ElecticalElectricalInspector specifyspecifyingtherein the particulars of installation:and.installation andthe supply of electricity shall not be commenced or recommenced within-athis .within thisperiod, without the approval in writing of the Electrical Inspector. (3) The following safety measures shall be provided in the multi-storeyed buildings of more than fifteen metre height and other premises such as airports, hospitals, hotels, places of entertainment, places of worship, cultural centers, stadium, academic buildings, test labs, industrial installations, installation with explosive or flammable material, railway or metro stations and other public buildings, namely: – (i) thesupplier or owner of the installation shall provide at the point of commencement of supply-asupply asuitable isolating device with cut-out or breaker to operate on all phases except neutral.neutralin the 3-phase, 4-wirethree-phase, four-wirecircuit and fixed in a conspicuous position at not more than 1.70 metresmetreabove the groündgroundso as to completely isolate the supply to the building in case of emergency. (4) Theemergency; (ii) theowner or occupier of a multi-storeyed building shall ensure that … shock and fire hazards, and the installation is carried out in accordance withas perthe relevant codes of practice. (5) Nostandards; (iii) noother service pipqpipesand cables shall be taken alongthroughthe ducts provided for laying ofpower cables and all ducts provided for power cables and other services shall be provided with fire barrier at each floor crossing.crossing; (iv) the Fire Retardant Low Smoke and Low Halogen power cables shall be used in building of more than fifteen metre height as per relevant standards: Provided that Halogen Free Flame Retardant power cables as per the relevant standards shall be used in airports, hospitals and hotels irrespective of height; (v) distribution of electricity to the floors shall be done using bus bar trunking system; (vi) lightning protection of the building shall be as per the relevant standards; (vii) verification of electrical wiring of the building shall be carried out as per the relevant standards; and (viii) electricity meter shall not be installed in the passage of staircase.

37. CEA 2010 · Reg 37Conditions applicable to installations of voltage exceeding 250 VoltsRevisedCEA 2023 · Reg 39Conditions applicable to installations of voltage exceeding 250 Volts
    What changed · 75% of the old wording kept

    (i) all conductors, other than those of overhead lines, shall be completely enclosed in mechanically strong metal casing or metallic covering which is electrically a•nd• mechanically continuous and adequately proteeted against mechanical damage unless the said conductors are accessible only to an designated person or are installed and protected so as to prevent danger: GAZETIE OF INDIA : D(TRAORDNARYProvided that non-metallic conduits conforming to the relevant Indian Standard Specificationsstandardsmay be used for installations of voltage not exceeding 650 v:V;(ii) all metal works, enclosing, supporting or associated with the installation, other than that designedto serve as a conductor shall be connected with an earthing system as per relevantstandards elaid down in the -Indian Standards in this regardand the pro.visionsprovisionsof regulation 41.43;(iii) Every switchboardevery switch boardshall comply with the following,-following, namely: –(a) a clear space of not less than one metrein width shall be provided in front of the switchboard; … connections at the back of the switchboard, the space, if any, behindthe switchboard shall be either less than twenty centimetrescentimetreor •more than sevetyseventyfive centimetrescentimetrein width, measured from the farthest protruding part of any attachment or conductor; and(c) if the space behind the switchboard exceeds sevetyseventyfive centimetrescentimetrein width, there shall be a passage way from either end of the switchboard, clear to a height of I .8 metres.1.8 metre;(iv) Inincase of installations provided in premises where inflammable materials including'includinggases and chemicals are produced, handled or stored, the electicalelectricalinstallations, equipment and apparatus shall comply with the requirements of flame proof, dust tight, totally enclosed oraorany other suitable type of electrical fittings depending upon the hazardous zones as per the relevant Indian Standard Specifications.standards;(v) Wherewherean application has been made to a supplier for supply of electricity to any installation, hethe suppliershall not commence the supply or where the supply has been •discontinueddiscontinuedfor a period of six months and above,or more,recommence the supply unless the consumer has complied with, in all respectswiththe conditions of supply •set outrelevant provisionsin these regulations.regulations;(vi) Wherewherea supplier proposes to supply or use electricity at Ororto recommence supply of voltage exceeding 250 V but not excepdingexceeding650 V after it has been discontinued for a period … before connecting or reconnecting the supply, give notice in writing Ofofsuch intention to the Electrical Inspector. (vii)lfInspector; and (vii) ifat any time after conneqtingconnectingthe supply, the supplier is satisfied that any provision of these regulations arehavenot being observed hebeen complied with, the suppliershall give notice of the same in writing to the consumer and the Electrical'ElectricalInspector, specifying howthe provisions have not been observeddefectsand to rectify such defects in a reasonable time andtime: Provided thatif the consumer fails to rectify such defects pointed out, hethe suppliermay discontinue the supply after giving the consumer a reasonable opportunity Ill-zos 41of being heard and recording reasons in •andwriting andthe supply shall be discontinued only on written orders of … rectified by the consumer to the satisfaction of the supplier.

38. CEA 2010 · Reg 38Appeal to Electrical Inspector in regard to defectsMinor changesCEA 2023 · Reg 40Appeal to Electrical Inspector in regard to defects
    What changed · 89% of the old wording kept

    (2) Any test for which application*applicationhas been made under sub regulationsub-regulation(1), shall be carried out within seven days after the receipt of such application.

39. CEA 2010 · Reg 39Precautions against failure of supply and notice of failuresMinor changesCEA 2023 · Reg 41Precautions against failure of supply and notice of failures
    What changed · 94% of the old wording kept

    (2) The supplier shall take all reasonable precautions to avoid any accidental intermptionsinterruptionsof supply, and also to avoid danger to the public or to any,employeeany employeeor designated person when engaged on any operation during and … Electrical Inspector may from time to time require to be notifednotifiedto him, and such notice shall be sent by the earliest mode of communication anerafterthe failure occurs or after the failure becomes k'lownknownto the supplier and shall be in the FonnFormgiven in Schedule-VI.Schedule IV.(4) For the purpose of testing or for any other purpose connected with the efficient working of the supplier'ssupplier‟sinstallations, the supply of -electricity may be discontinued by the supplier for such period … to be affected by such discontinuance: Provided that no such notioenoticeshall be given in cases of emergency. Chapter V Safety provisions for electrical installations and apparatus of voltage potnotexceeding 650 volts :V

40. CEA 2010 · Reg 40Test for resistance of insulationRevisedCEA 2023 · Reg 42 · probableTest of insulation resistance
    What changed · 12% of the old wording kept

    (2) The provision under sub-regulation (1) .shallTest of insulation resistance. – Where any electric supply line for use at voltagesnot applyexceeding 650 V has been disconnected from a system for the purpose of addition, alteration or repair, such electric supply line shall not be reconnectedto overhead lines except overhead insulated cables, unlessthe Elecfrical Inspector otherwise directs in any particular case.system until the supplier or the owner has carried out the test.

41. CEA 2010 · Reg 41Connection with earthRevisedCEA 2023 · Reg 43Connection with earth
    What changed · 46% of the old wording kept

    (i) neutal conductor of a 3-phase, 4-wire system and the middle conductor of a 2-phase, 3-wire system shall be earthed by not less than two separate and distinct connections with a minimum of two different earth electodes or Such large number as may be necessary to bring the earth resistance to a satisfactory value both at the generating station and at the sub-stafion.(ii) the earth electrodes so provided, shall be .inter-connected to reduce earth resistance. (iii)neutral conductor shall also be earthed at one or more points along the distribution system or service *linelinein addition to any connection with earth which mayshallbe at the consumers premises. (iv)consumer‟s premises; (iii)in the case of a system comprising electric supply lines having concentric cables, the external conductor or armourof such cables.cablesshall be earthed by two separate and distinct connections with earth. (v) the connection with earth may include a link by means of which the connection may be temporarily interrupted for the purpose of testing or for locating a fault: (vi)earthing system; (iv)in a direct current three wiresystem, the middle conductorearthing and safety measuresshall be earthed atas perthe generating station only, andi the%current fromrelevant standards; (v) every building shall have protective equipotential bonding by interconnectingthe middle conductor to earth shall be continuously recorded by means of a recording ammeter,exposedand if at any timeextraneous conductive parts as perthe relevant standards; (vi) the alternatingcurrent exceeds one-thousaildth part of the maximum *upply current, immediate steps: shall be taken to improve the insulation of the system. (vii) where the middle conductor is earthed bymeans of a circuit breaker with a resistance connected in parallel, the resistance shall not exceed ten ohms and on the opening of the circuit breaker, immediate steps shall be taken to improve the insulation of the system, and the circuit breaker shall be recloséd as soon as possible. (viii) the resistance shall be used only as a protection for the ammeter in case of earths on the system and until such earths are removed and immediate sWps shall be taken to locate and remove ffe earth. (ix) in the case ofan altemating current system, there shall not be inserted in the.connection with earth any impedance, other than that required solely for the operation of switchgear or ins&uments, cut-out or circuit breaker, and the result of any test made to ascertain whether the current, if any, passing@trough åe comection wiül earå is normal, shall be duly recorded by tte supplier. (x) no person Shail make comection with earth by the aid of, nor shall he keep it in conuct with, any water-mains not belonging to him except with the consent ofthe owner thereof and of the Electrical InspectOt (xi) altemating éUtrentsystems which are connected with theearth as aforesaidprovided in this regulationshall be electrically interconnected: Provided that each connection with theearth is bonded to the metal sheathing and metallic amouring,armouring,if any, of the elecü•icelectricsupply lines concemed. (xii)lines; (vii)the frame of every generator, stationary motor, portable motor, and the metallic parts, not intended as conductors, ofall tansformerstransformersand any other apparatus uéedusedfor regulating or colfrollingcontrollingelectricity, and all electricity consuming •apparatus,apparatus,of voltage-voltageexceeding 250 vVbut not exceeding 650 V shall'shall beearthed by the owner•bytwo separate and distinct connections wiå earth. (xiii) neutral point of every generator and transformer shall be eartlzdwith earthby connecting it tothe earthing system by not less than two sepearte and distinct connections. (xiv)owner as specified in the relevant standards; (viii)all metal casing or metallic coverings containing or protec$ing .nyprotecting anyelectric supply line or apparatus shall be connected with eavththe earthand shall be so joined and connected across all junetiqnjunctionboxes and other openings as to makeprovidegood mechanical and elec@ical connecdonelectrical connectionthroughout their wholethelength: Provided that gonditionsthe conditionsmentioned in this regulation shall not apply, where the supply … or other fittings, other than portable hand lamps and portable aidandtransportable apparatus, unless provided with eardlthe earthterminal and to class-II apparatus and appliances:appliances of the relevant standards:Provided further that where the supply voltage is not exceeding 250 V and where the installations are either new or renovated, all plug sopketssocketsshall be of the three pin type, and the third pin shall be permanently and emciendy•earthed. (xv)effectively earthed; (ix)All earthing systems shall, -–(a) consist of equipotential bonding condUctorsconductorscapable of carrying the prospective earth fault current and a group of pipes, rods and plate elecüodes for dissipaüng the current tp the general mass of earthwithout exceeding the allowable temperature -limits • *as'limits asper relevant Indian Standardsstandardsin order tctomaintain ålle non-curent can-yingall non- current carryingmetal works rasonablyreasonablyat earth potential and •totoavoid dangerous contact potentials beingdeveloped on such metal works; (b) limithaveearth resistance Suffcientlyfault loop impedance sufficientlylow to permit adequate fault current for theoperation of protective devicesdevice within the time stipulatedin timethe relevant standards;and •to reduce neutral shifting;(c) be mechanically strong, withstand corrosion and retain electrical continuity during tiethelife of the installation and all earthing systems shall be tested to ensure effcient earthing,effective earth bonding as per the relevant standards,before the electric supply lines or apparatus are energised. (xvi)energised; (x)all earthing systems belonging to the supplier shall in addition, be tested for resistance on dry day during the dry season not less thanat leastonce every two years. (xvii)in a year; (xi) earth fault loop impedance shall be tested to ensure the automatic operation of the protective device anda record of earåevery earthtest made and the result thereof shall be kept by the supplier for a period of not Tesslessthan two years after the day of testing and shall be available to the Electrical Inspector when required. Explanation:- The expression "Class-II apparatusrequired; (xii) earth fault loop impedance of each circuit shall be limited to a value determined by the typeand appliance"current rating of the protective device used such that, on the occurrence of an earth fault, disconnection of the supplyshall haveoccur beforethe same meaning as is assignedprospective touch voltage reaches a harmful value; and (xiii) the neutral point of every generator and transformer shall be earthed by connecting itto it inthe relevant Indian Standards.earthing system not by less than two separate and distinct connections.

42. CEA 2010 · Reg 42Earth leakage protective deviceRevisedCEA 2023 · Reg 44 · probableResidual Current Device
    What changed · 78% of the old wording kept

    Provided that in domestic installation, residual current device having residual operating current not exceeding 30 milliampere shall be used: Provided further thatsuch earth leakageprotective device shall not be required for overheadsupply lines having protecüveprotectivedevices which are effectively bonded to åethe neutralof supply &ansfomers nd confomingtransformers and conformingto regulation 73.76.Chapter VI Safety provisions for electrical installations and apparatus of voltage exceeding 650 voltsV

43. CEA 2010 · Reg 43Approval by Electrical InspectorRevisedCEA 2023 · Reg 45Approval by the Electrical Inspector and self-certification
    What changed · 78% of the old wording kept

    Provided that the self-certified electrical installation shall be considered fit for the commencement of supply or recommencement after shutdown for six months only after the report of self-certification is duly received by the office of Electrical Inspector and if not acknowledged by the Electrical Inspector within three working days, it shall be deemed to be received: Provided further that the owner or supplier or consumer, as the case may be, has the option to get his installation inspected and tested by the Electrical Inspector of the Appropriate Government; (b) Notwithstanding anything contained in clause (a), every electrical installation covered under section 54 of the Act including every electrical installation of railways shall be inspected and tested by the Electrical Inspector of the Appropriate Government as specified in sub-regulation (3).(2) The voltage above which inspection and testing of electrical installations including installations of supplier or consumer to be carried out by the Electrical Inspector, shall be notified by the Appropriate Government; (3) Every electrical installation of voltage above the notified voltage and all the apparatus of the generating units above the capacity specified under regulation 34, shall be inspected and tested by the Electrical Inspector before commencement of supply or recommencement after shutdown for six months or more for ensuring observance of safety measures specified under these regulations. (4)Before making an application to the Electrical Inspector for permission to commence or recommence supply in installations above the notified voltageafter an installation haghasbeen .disconnecteddisconnectedfor six months and above at völtage exceeding 650 V to any person,or more,the supplier shall ensure that electric supply.supplylines or,orapparatus of more than notifiedvoltage exceeding 650 Vbelonging to him are placed in positionsposition,properly joinedjoined,and duly completed and examinedexamined,and the supply .ofofelectricity shall not be commenced by the supplier for installations of voltage needing inspection under these regulations unless the provisions of regulations 1214to 29, 33 to' 35, 4431, regulations 35to 5137, regulations 46 to 53and 55regulations 57to 7780have been complied with and the •approValapprovalin writingof the ElecfricalElectricalInspector has been obtained by him: Provided that the supplier … or apparatus for the purpose of tests specified in regulation 46. (3)48. (5)The owner of any installationinstallationsof voltage exceeding 650 Vabove the notified voltageshall, before making application to the Electrical Inspector for approval of his installation or additions thereto, test every circuit of voltage exceeding 650 Vor additions thereto, other than an overhead line, and satis&satisfyhimself that they withstand the applicåtionapplicationof the testing voltage set out in sub-regulation (1) ofregulation 4648and shall duly record the results ofsüchof suchtests and fonvard them.tosubmit them tothe Electrical Inspector: Provided that antheElectrical Inspector may direct such owner to carry out such teststests,as he deems necessary or accept the •manufacturer'scertified te$stests of the manufacturerin respect of any particular apparatus in place of the tests required by this regulation (4)regulation. (6) Theowner of any installation of voltage exceeding 650 Vwho makes any addition or alteration to his installation shall not Connectconnectto the supply his 'apparatusapparatusor electric supply lines, comprising the said alterations or additionsadditions,unless and until such alteration or addition has been _approvedapprovedin witingwritingby the Electrical Inspector.Inspector or self-certified by the owner of the installation, as the case may be. (7) In case of installations of mines and oil-fields, the electrical installations of voltage 650 V and above shall not be connected to supply, unless and until such installation work including alterations or additions or recommencement after shutdown for six months are approved in writing by the Electrical Inspector of Mines: Provided that the electrical installations of voltage below 650 V in mines and oil-fields are to be self- certified by the owner or agent or manager of the mine before commencement of supply or recommencement after shutdown for six months or more in the manner specified in sub-regulation (1).

44. CEA 2010 · Reg 44Use of electricity at voltage exceeding 650 VoltsRevisedCEA 2023 · Reg 46Use of electricity at voltage exceeding 650 V
    What changed · 66% of the old wording kept

    (i) all'(a) allconductors and apparatus situated on the premises of the consumer are so placed as to be inaccessible except to a designated person GÄÆTIE OF mDIA : EXTRAORDINARY and all operations in connection withthe said conductors and apparatus are carried out by adesignated person; (ii)(b)the consumer has provided and ageesagreedto maintain a •separateseparatebuilding or a locked weather proof and •firefireproof enclosuresenclosureof agreed design and location, to which the supplier at … the purpose of housing his apparatus and metering equipment, or where.•thewhere theprovision for-afor aseparate building or enclosure is impracticable, the consumerhas segregated theaforesaidthe aforesaidapparatus of the supplier from any.anyother part of his own apparatus: Provided that suchthesegregation shall:shallbe by.made bythe provision offire proofwalls, if fretheElectrical Inspector considers it to be necessary: Provided further that in the case Ofariof anoutdoor installation the consumer shall suitably segregate theaforesaid apparatus-bélongingthe aforesaid apparatus belongingto the supplier from his own; (iii)(c)all pole type sub-stationssubstationsare constructed and maintained in accordance with regulation 50.52.(2) The owner shall observe the following conditions, WhéreWhereelectricity at voltage exceeding 650 V is supplied, converted, transformedor used,-used, the owner shall, –(i) he shallmaintain safety clearances for electricafelectricalapparatus as per Bureau Of Indian Standard specifiéation Xo •that . Sufficientrelevant standards specification so that sufficientspace is available for easy operation and -maintenance Without any-'maintenance without anyhazard to the operating and maintenance personnel working near the equipment and for ensuring adequate ventilation;ventilation: Provided that in case of mines, the safety clearances for electrical apparatus to be as per relevant mining regulations;(ii) he shallnot allow any encroachment below such installation: Provided that where the ElecticalElectricalInspector Comescomesacross any such encroachment, he shall direct the owner to remove such encroachments; (iii) themaintainminimum safety working clearances Specifiedspecifiedin Schedule-VII shall be maintainedSchedule Vfor the bare conductors or live parts of any apparatus in outdoor sub-stationssubstationsexcluding overhead lines of'ofinstallations of voltage exceeding 650 V',V;(iv) he shallensure that the windingslive partsof motors or otherallapparatus within thereach from any position in which a person may require to be, are suitably protected so asto prevent danger; (v) he shallensure that where Yänsformers arethe transformer isused, suitable provision shall be made, eithef.bYdonhéctingeither by connectingwith earth;earth,a point of the circuit 'atatthe lower voltage or otheNiSe, guard'otherwise, to guardagainst danger by reason of the said circuit becoming accidentally charged above its normal voltage by leakage from or contact with thé Circuitthe circuitat the higher voltage; 2is(vi) not installa sub-stationsubstationor a switching station with apparatus having more than 2000 litreslitreof oil shall not, be locatedin the basement where pxoperproperoil draining arrangement cannot be provided; (vii) undertake the following measures,where a sub-stationsubstationor a switching station With apparatuswith oil-filled apparatus, such as transformer, static condenser, switchgear or oil circuit breakerhaving more than 2000 litreslitreof oil is installed, whether indoor or outdoors, he shall take the following measures, namely:-outdoors,-(a) the baffeseparation wall or fire barrierwalls of four hours fire ratingthickness and dimensions as specified in the relevant standardsshall be provided between the apparatus,- (i) .where there is .a single phase üansformer banks in the switch-yards of generating stationsapparatusesand sub-stations; (ii) on the consümer premises; (iii) where adequate clearancebetween the unitsapparatus and adjacent building if building wall adjacent to the apparatusesis not available.rated for four hours fire withstand rating;(b) proviSiönsprovisions shall bemade for suitable oil soakpit and where use of more than 9000 litreslitreof oil in any one oil tank, receptacle or chamber … ignition of the oil from any cause and adequate provision shall* béshall bemade for extinguishing any fire which may occur,occur;(c) spare oil shall not be stored in the vicinity of any oil filled equipment in any such sub-stationsubstationor switching station; and(d) all the transformers and "switehgearsswitchgearsshall be maintained in accordance with the maintenance schedules prepared in accordance with the relevant codes of practice of Bureau of Indian Standards; (e) dry type of transformers only shall be used for installations inside the residential and commercial buildings;standards;(viii) without prejudice to thezaboveneasures,'he shall takethe above measures, undertakeadequate fire detection andprotection arrangement for quenching the fire inofthe apparatus; (ix) he shall-ensure that* the transformersensure that every transformerof IO10MVA or reactor of 10 MVARand above rating or in case of oil filled transformers with oil capacity of more than 2000 liters areshall beprovided with automaticfire fighting -systemsystemas per IS 3034: 1993 or with -Nitrogen Injection Fire Protection syst& m;relevant standards;(x) undertake the following measures,where it is necessary to locate the sub-station,substation,or switching station in the basement, he shall take the following measures, .namely:-namely: –(a) the transformerroom shall- necessarilybe in the first basement at the peripheryperiphery; (b) the direct access to the transformer room be provided from outside and the surrounding wallsof the basement; (b)four hours fire withstand rating be provided as per relevant standards; (c)the entrances to the transformerroom shallbe provided with fire resistingresistantdoors of 2twohour fire raüngratingand the door shall always be kept closed and a notice Ofofthis effect shallbe affxedaffixedon outer side of the door; (c) a.cu@ (sill)(d) a curbof a suitable height. shallheightbe prpvidedprovidedat the entrance in order to prevent the flow of oil from a ruptured transformer into other parts of the basement; (d) direct access to the tansformer room shall be provided from outside and the surrounding walls.shall pe lined with fire. bricks;(e) the cables to primary side and secondary.secondaryside shall,have sealing at all floors and wall opening of atleast two hours fire withstandrating; and(f) fire RetardentFire RetardantLow Smoke (FRLS)Low Halogencable of two hours rating shallas per relevant standardsbe used.used;(xi) he shallensure tbatthatoil filled transformers installed indoors in other than residential or commercial buildings are placed atonthe ground floor or not below the first basement; (xii) heensure that only dry type transformershall -ensurebe used inside the residential and commercial buildings; (xiii) ensurethat cable frenchestrenchesinside the. sub-stationsthe substationsand switching stations containing cables are filled with sand, pebbles or similar non•inflammablenon-inflammablematerials or completely covered with non-inflammable slabs; (xiii) he shalland (xiv)ensure that unless the conditions are such that all the conductors and apparatus may be made dead at the same ümetimefor the purpose of cleaning or for other work, the … work on any such section may be carried on by a designated'theperson designated or appointed or engaged or permited under these regulationswithout danger, (xiv) only persons desWted under süb-regulation (1) of regulation 3, shal carry out the work on live lines and apparatus.danger.(3) All apparatus shall be protected against lighming and apparatus exceeding 220 kV shall also be protected against switching over voltages. (4) The. equipment used for protection and switching shall be adequately co- ordinated with the protected apparatus to ensure safe' operation and to maintain the stability-of the iriter-connected units of the power system. (5)The minimum clearances specified in Schedule-VIII ShallSchedule VI shallbe maintained for bare conductors or live parts of any apparatuS_inhigh voltage direct current apparatus inoutdoor sub-stations,substations,excluding high voltage direct currentoverhead lines of High Voltage Direct Current installations. (6)lines. (4)There shall not be tapping of another transmission line, from-the mainlineline from the main linefor 66 kV and above class of lines.lines: Provided that during natural calamities, tapping may be allowed to ensure emergency power supply to affected areas till normalcy is restored.

45. CEA 2010 · Reg 45Inter-locks and protection for use of electricity at voltage exceeding 650 VoltsRevisedCEA 2023 · Reg 47Inter-locks and protection for use of electricity at voltage exceeding 650 V
    What changed · 70% of the old wording kept

    3.5. •S(ii) isolators and the correspondingeearthing switches- s»allcorresponding earthing switches shallbe inter- lockedinter-lockedso that no earthing swftchswitchcan be closed unless and until ffe corresppndingisolatorisånthe corresponding isolator is inopen position;(iii) where two toror more suppliesare not intended >tmbe-operated •into be operated inparallel, the respecdvescircuit breakers; ovrespective circuit breakers orlinked switches controlling frethesupplies shall be intef-lockedinter-lockedto prevent possibility of any -inadvertentinadvertentparalleling or feedback;backfeed;(iv) when two oranore tansformersor more transformersare operated in parallelsparallel,the system shall be so arranged as -to tip the-secondary 'breaker-of ctransformerto trip the secondary breaker of the transformerin case the primarybreaker of that trips;..transformer trips;(v) all gates or doors which giveprovideaccess to -liveliveparts of an installation shall be inter-locked in.such.ain such away that these cannot.be.opened unlessthecannot be opened unless thelive parts are made dead and proper discharging and earthing.ofetheseparts shouldearthing of these parts shallbe ensured before any person comes in close proximity of such parts; (viiand (vi)where two or,ormore generators operate : in,inparallel and neutral switching is adopted, inter-lock shall be provided to ensure that thegenerator breaker cannot be closed unless one of the neutrals is connected Lto •theto theearthing system. (2) The following protection,protectionshall be provided -ininall systems and circuits,tocircuits toautomatically disconnect the supply under abnormal conditions, namly:-namely: –(i) overcurrent protection:toover current protection todisconnect the supply automaticallyif:theautomatically if therated current dfofthe equipment, cable or supply line isrexceededfora%timeis exceeded for a timewhich the equipment*equipment,cable .orsupply•line• is,notdesigneditoor supply line is not designed towithstand; (ii) earth fault or earth leakage protection to disconnect the supply automaticallyautomatically,if the earth fault current exceedsthe dimit ofrcunentlimit of currentfor keeping the contact potential within the reasonable values; (iii) gas preSsure typebuchholz relay, pressure relief deviceand winding and oil temperature.protection to givetemperature protection withalarm and tippingtrip contactsshall be provided orionall transformers of ratings •1000 KVA1000 kVAand above; (iv) transformersof capacity 10 MYAMVAand above shall be protected against incipient faults by differential protection; (v) all generators with rating of 100 KVAkVAand above shall be protected against earth fault or leakage; (Vi)(vi)all generators of rating 1000 KVAkVAand above shall be protected against faults within the generator … always be available at all 132 kV and above voltage sub-stationssubstationsand switching stations and generating stations connected with the grid: Provided that in respect of existing 132 kV sub-stationssubstationsand switchincswitchingstations having more than one incoming feeders, the high speed bus bar differential protection along with local breaker back up protection, shall be •commissionedcommissionedand shall always be available; and(viii) everyin addition to above, all electrical protection system forgenerating stationstations, substationsand sub-station connected to the grid at 220 kV and abovetransmission linesshall be provided with disturbance recording and event logging facilities and all such equipment shall be provided with time synchronization facility for global common time reference but wherever numerical relays with provisionas per the regulations notified by the Authority under clause (e)of recörding fault data are installed, disturbance recorder and event logger may not be installed; (ix) distance protection and carrier communication protection shall be provided for all lines connecting to 400/220 kV substation.sub-section (2) of section 177 of the Act.

46. CEA 2010 · Reg 46Testing, Operation and MaintenanceRevisedCEA 2023 · Reg 48Testing, Operation and Maintenance
    What changed · 79% of the old wording kept

    (2) No new apparatus, cable or supply line of voltage exceeding 650 VoltsVshall be commissioned unless such apparatus, cable or supply line are subjected to site tests as per relevant code of practice of the Bureau of Indian Standards.standards.(3) No apparatus, cable or supply line of voltage exceeding 650 V which has been kept disconnected,disconnectedfor a period of six months or more,morefrom the system for alterations orrepair,or repair,shall be connected to the system until such apparatus, cable or supply line are subjected to the •relevantsitetests as per code of practice of Bureau of Indian Standards.relevant standards.(4) Notwithstanding the provisions of this regulation, the Electrical Inspector may require certain tests -totobe carried out before or after charging the installations. (5) … tests shall be carried out periodically as per the relevant code of practice of the Bureau of Indian Standards.standards.(6) Records of all tests, tippings,trippings,maintenance works and repairs of all equipmentsapparatus,cables and supply lines shall be duly kept in such a way that these records can be compared with earlier ones.the past records.(7) It shall be the responsibility of the owner of … and as recommended by the manufacturer or by the relevant codes of practice of the Bureau of Indian Standards.standards.(8) Failures of transformersany 220 kVand reactors of 20 MVA or MVARabove voltage level transformer, reactorand higher capacitytransmission line towersshall be reported by the consumer and the suppliersownerof electricity,electrical installation,within forty eight hours of the occurrence of the failure, to the Central ElectricityAuthority and the reasons for failure and measures to be taken to avoid recurrence of failure shall be sent to the Central ElectricityAuthority within one month of the occurrence in the format givenforms providedin Schedule-IX.Schedule VII: Provided that in case of mines and oil-fields, the failure of 10 MVA or above transformers shall be reported to Electrical Inspector of mines.

47. CEA 2010 · Reg 47Precautions to be taken against excess leakage in case of metal sheathed electric supply linesMinor changesCEA 2023 · Reg 49Precautions to be taken against excess leakage in case of metal sheathed electric supply lines
    What changed · 94% of the old wording kept

    namely:-(i)the conductors of the cable except the cable with thermoplastic or cross linked polyethylene,insulation without any metallic screen or armour shall be enclosed … of the metal sheathing shall be maintained and reasonable precautions shall betaken where necessary to avoid corrosion of the sheathing; (ii) the resistance of the earth connection with metallic sheath shayshallbe kept low enough to permit the controlling circuit breaker or cut-out to pperateoperatein the event of any failure of insulation between the metallic sheath and the conductor. Explanation-Explanation. –For the purposepurposesof this regulation; (a) in the case of thermoplastic insulated and sheathed cables with metallic armourarmour,the metallic wire or tape armour,armourshall be considered as metal sheathing,sheathing; and(b) where an electric-supplyelectric supplyline as aforesaid has concentric cables and the external conductor … purposes of this regulation provided that the foregoing provisions as .totoconductivity are complied with.

48. CEA 2010 · Reg 48Connection with earth for apparatus exceeding 650VRevisedCEA 2023 · Reg 50Connection with earth for apparatus exceeding 650 V
    What changed · 75% of the old wording kept

    (i)(ii)limit the touch and step potential to tolerable values', limit•thegoundearthpotential rise to tolerable values itoas per relevant standards, so as toprevent danger diredue to transfer of potential throughground, earth wires, cable sheath, fences, linesö etc.; (tn)r maintåinpipe lines or other such equipment; and (iii) maintainthe resistance ofltHeof theearth connectiomt0Jsuch a•valueconnectionto oftheprotectivesuch a value as to make operation of the protectivedevice effective;effective.(2) In the.case•ofthe case ofstar connected system with earthe&neuttalsearthed neutralsor deltæconnecteddelta connectedsystem with earthed arüficial neuEalartificial neutralpoint,- (i) the neutral point of every generator and tansformer shalitransformer shallbe earthed-by cormectingitto, the. earthing-systemearthed by connecting it to the earthing systemnot kybyless than twOieparatetwo separateand disdnct comections: Provided-thatdistinct connections: Provided thatthe neutal,neutralpoint of a generator may be connected to the earthing system through an impedance to limit the fault current to the earth:current:Provided further •that,thatin the case offofmulti-machine systemssystems,neutral switching may be resorted to, fortimitingfor limitingthe injurious effect of hannonic current. circulatiow.inharmonic current circulation inthe system; (ii) the generatoror tansformertransformerneutral shalfbe earthed•throughashall be earthed through asuitable 'impedance where amanappreciable harmonic'harmoniccurrent 'flowingflowingin the neutral connectioncausesinterférence;connection causes interferencewith communicadon•circuits;the communication circuits; and(iii) in case ofthedeltæconnected systemthe neutél point?shalltbeof the delta connected system, the neutral point shall beobtained by the insertiomofiagoundinginsertion of a earthingtransformer ahdandcurrent limiting resistance or impedance wherever considered necessary at the cömmencementcommencementof such a system. (3) In case •of sntions, sub-stations industrial instillationsgenerating stations, substations and other installationsof voltage exceeding 33 kV,' tiekV, thesystem neutalneutralearthing and protecfiveprotectiveframe eartffngearthingmay be, ifsystemif systemdesign so warrants,' integatédwarrants, integratedinto common earthing Bid.proyidedgrid providedthe resistance to earth of combined mat does not cause the step and touch potential to exceed its permiSsible values.the values as per relevant standards.(4) Single phase systems of voltage exceeding650exceeding 650V shall be effectively earthed. (5) In the case of a system •comprising elecfriccomprising electricsupply lines having concentic cablés,concentric cables,the extemal conductörexternal conductorshall be connected Withwith theearth. (6) WhéreWherea supplier pioposesproposesto connect with earth an existing system for use at voltage.voltageexceeding 650 V which has not hitherto been so connected with earth, he shall Ave not,lessgive not lessthan fourteen days notice in writingtogether with particulars of the proposed connection with earth-toearth tothe telegraph authorityestablished underthe IndiantTe1egaph Act„under the Indian Telegraph Act,1885 (13 of 1885). (7) Where the earthing lead and earthconnection are uc&onlyused onlyin connection with earthing guards erectedlaidunder overhead lines of voltage*voltageexceeding 650 V but not exceeding 33 kVwhere they cross a telecommunicationline or a railway line, and where such lines are equipped with earth leakage protective device,the earth resistance shall not exceed twenty five ohms and the project authorities shall obtain No Objection Certificate (NOC)no objection certificatefrom RiilwayRailwayAuthorities and Power and Co-ordinationTelecommunication CoordinationCommittee before energisation of the facilities. (S) Evety(8) Everyearthing system belonging to either the supplier or the consumer shall be tested for its resisnnceresistanceto earth on a dry day during dry season not less than once ina year and records of such tests,testsshall be maintained and produced, if so required, before the ElectiéalElectricalInspector.

49. CEA 2010 · Reg 49General conditions as to transformation and control of electricityRevisedCEA 2023 · Reg 51General conditions for transformation and control of electricity
    What changed · 32% of the old wording kept

    (i) 'substations and switching stations shall - preferablyß be erected above ground, but where necessarily constructed' underground due provisions for ventilation and drainage shall be made and any space housing switchgear shall not be used for storage Of any materials especially inflammable and combustible materials or refuse;(ii) (a)outdoor sub-stationssubstationsexcept pole Wpe sub-stationstype substationsand outdoor switching stationsshall, unless the apparatus is completely enclosed in a metal covering connected with earth, the said apparatus •alsoalsobeing comectedconnectedwith the system by armoured cables, 'be efficientlybeprotected by fencing not<lesSnot lessthan 1.8 metesmetrein height or other means so as to prevent access to the elecfricelectricsupply lines and apparatus therein by an Undesignatedunauthorisedperson and thevfenéingthe fencingof such area •shallshallbe earthed efficiently; (iii) underground street boxes, other than sub-stations, which contain tansfonners shall not contain switches or otheriapparatus,and switches, cut- outs or other apparatus required for eontrölling or other pürposes(b) transformer mounting structureshall be fixed in separate receptacle above ground wherever practicable.as per the regulations notified by the Authority under clause (e) of sub-section(2) Where is transformed, suitable connection shall be made by connecting with earth a pointof section 177of the system at the lower voltage and also to guard against danger by reason of the said •system becoming accidentally charged above its normal Voltage by leakage from a contact•with the system at; the higher voltage. 50. 51.Act.

50. CEA 2010 · Reg 50Pole type sub-stationsRevisedCEA 2023 · Reg 52Pole type substations
    What changed · 75% of the old wording kept

    Provided that in the case of pole type sub-stationsubstationon wooden süpportssupportsand woodéö platformwooden platform,the metal hand-railhand railshall not be connected with earth,the earth.

51. CEA 2010 · Reg 51CondensersMinor changesCEA 2023 · Reg 53Condensers
    What changed · 95% of the old wording kept

    Condensers.-Condensers. –Suitable arrangement shall be made for immediate and automatic or manual discharge of every static condenser on disconnection of supply.

52. CEA 2010 · Reg 52Supply to luminous tube sign installations of voltage exceeding 650 Volts but not exceeding 33 kVMinor changesCEA 2023 · Reg 54Supply to luminous tube sign installations of voltage exceeding 650 V but not exceeding 33 kV
    What changed · 86% of the old wording kept

    (i) all live parts of the installation, including all apparatus and live conductors -in the secondary circuit, but excluding the tubes except in the neighbourhood of their terminals, shall be inaccessible to undesignated persons and such pans shall be effectively screened;(ii) irrespective of the lhethodmethodof obtaining the voltage of the circuit which feeds the luminous discharge tube sign,'sign,no part of any conductor of such circuit shall be … (iii) all live parts of an exterior installation shall be Sösodisposed as to protect them against the effects of the … the primary circuit are not in metallic connection with the Supplysupplyconductors, one phase of such primary circuit shall be permanently … shall be provided on the side of voltage not exceeding 250.250V to detect the leakage in such luminous tube sign inétallations;installations;(vi) a sub-circuit which forms the primary circuit of a fixed luminous discharge tube sigl.signinstallation shall be reserved solely for such purpose; (vii) a separate•separateprimary final sub-circuit shall be provided.,forprovided foreach transformer or each group of tansfohnerstransformershaving an aggregate input not.notexceeding 1,000 volt-amperes,1000 volt-amperesof a fixed luminous discharge tube sign installation; (viii) an … means for disconnecting all phases of the supply except the "neutral"“neutral”in a 3-phase, 4-wirethree-phase, four-wirecircuit; (ix) for installationSinstallationson the exterior:ofexterior ofa building '4. witablea suitableemergency fire-pr60ffire-prooflinked switch to operate on all phases excepÜtheexcept theneutral in a 3- phase, 4-wire•three-phase, four-wirecircuit shall be provided and fixed in a conspicuous position at not more than 1-.70 metres1.70 metreabove the ground; (x) a special "caution"“caution”notice shall be affixed in a conspicuous place on the … transformers where the voltage does not exceed 250 V; (xii) where.wherestatic condensers are used on primary side, provision shall be made for automatic or manual discharging of the condensers when the supply is eutcutoff; and(xiii) before using the static condensers or any interrupting device … without giving to the Electrical Inspector not less than fourteen days nöticedays‟ noticein writingof his intention so to do.

53. CEA 2010 · Reg 53Supply to electrode boilers of voltage exceeding 650 Volt but not exceeding 33 kVRevisedCEA 2023 · Reg 55Supply to electrode boilers of voltage exceeding 650 V but not exceeding 33 kV
    What changed · 79% of the old wording kept

    (i) the metal work of the electrode boiler shall be efficiently connected to the metal sheathing and metallic armouring, if any, of the electric supply line of voltage exceeding 650 V but not exceeding 33 kV whereby electricity is suppied to the elecfrode boiler;(ii) the ,supplysupplyof electricity at voltage exceeding 650 V to the electrode … of the rated current consumption of the electrode boiler under nonnalnormalconditions of operation: Provided that if in any case a … consumption of the electrode boiler under normal conditions of operation; (ii )(iii)an inverse time element device may be used in conjuctionconjunctionwith the a oresaidaforesaidcircuit breaker to prevent the operation thereof unnecessarily on the occurrence of unbalanced phase currents of momentary or short duration; and(iv) the supplier or owner shall serve a notice in writing on the telegraph-telegraphauthority at least seven days prior to the date on which such supply of electricity is to be afforded specifying the location of every point*point,including [PART 41the earth connection of the electrode boiler,.boiler,at which the system is connected with earth. (2) The … use without giving the Electrical Inspector not less than fourteen daysdays‟notice in wHtingwritingof his intention so to do.

54. CEA 2010 · Reg 54Supply to X-ray and high frequency installationsMinor changesCEA 2023 · Reg 56Supply to X-ray and high frequency installations
    What changed · 85% of the old wording kept

    (i) . mechanical barriers shall be provided to prevent too close an approach to any- parts of the X-ray apparatus of voltage exceéding 650 V but not exceeding 33 k V, eXcept the X:ray tube and its leads; unless such parts of voltage exceeding 650 V' but not exceeding 33 kV have been rendered shock proof by being shielded by earthed metal or adequate insulating material;(ii) where generators operating at 300 kV peak otormore are used, such generators shall be installed in rooms separate from those containing the other equipment and anfanystep-up transformer employed shall be so installed and protected as to prevent _danger;danger;(iii) a suitable switch shall be-providedbe providedto control the circuit supplying a generator,generatorand shall be so anangedarrangedas to be open except while the door of the … locked from the outside; (iv) X-ray tubes used in therapy shall-shallbe mounted in an earthed metal enclosure; and(v) every X-ray machine shall be provided with a milliammeter or other suitable measuring instrument, readilyvisible from the control position and connected, if practicable, in … lead of voltage exceeding 650 V but not exceeding 33 k V: Provided-kV: Providedthat earth leakage circuit breaker of sufficient rating shall be … 250 V to detect the leakage in such X-ray installations. Explanation:-Explanation. –For the purposepurposesof this regulation "shock proof", .as“shock proof”, asapplied to X-ray and high-frequency equipment, shall mean that stichsuchequipment is guarded with earthed metal so that no person may come into contact with any live part. (2) (i) inInthe case of nonshock proof equipment,equipment.- (i) theoverhead conductors of voltage exceeding 650 V but not exceeding 33 k V,kV,unless suitably guarded against personal contact, shall be adequately spaced and high voltage leads on tilting tables and fluroscopes Shailfluoroscopes shallbe adequately insulated or so surrounded by barriers as *totoprevent inadvertent contact; (ii) the circuit of voltage not exceeding 250 V of the step up transformer shall"shallcontain a manually operated control device having overload protection, in … that will open automatically except while held close by the operator, or;operator; or(b) a time switch which will open automatically after a … than one piece of apparatus be operated from the same sourceof voltage exceeding 650 V, each shall be providcdprovidedwith a sourceswitch of voltage exeeedingexceeding650 V to give independent conEol;control;(iv) low frequency current-carrying parts of a machine of the quenched- gapquenched-gapor open gap type shall be so insulated or guarded that they cannot be touched during operation but the high frequency circuit-propercircuit- properwhich delivers high-frequency current normally for the therapeutic purposes shall … capacitors shall have suitable means for discharging the capacitors manually; and(vi) except in the case of self-contained units, all 200 … but not exceeding 33 kV adjusted so that it will breäkbreakdown on over voltage surges. (3) (i)all non-current carrying metal parts of tube stands, fluroscopesfluoroscopesand other apparatus shall be properly earthed and insulating floors, … provided for operators in proximity to parts of voltage exceeding 650V650 Vunless such parts have been rendered shock proof; and(ii) where short wave therapy machines are used, the treamenttablestreatment tablesand examining chairs shall be wholly non-metallic. (4) The owner … without giving to the Electrical Inspector not less than fourteen daysdays‟notice in writing-ofwriting ofhis intention to do so: Provided that the aforesaid notice shall not be necessary in the case 01ofshock-proof portable X-ray and high-frequency equipment which have been inspected … use and periodically thereafter. Chapter VII Safety requirements for overhead lines,lines andunderground cables and generating stations

55. CEA 2010 · Reg 55Material and strengthMinor changesCEA 2023 · Reg 57Material and strength
    What changed · 91% of the old wording kept

    (2) Where the voltage does not exceed 250 V and the span is ofless than fifteen metre and is drawn through the owner'sowner‟sor consumer'sconsumer‟spremises, a conductor having an actual breaking strength of not less than 150 kgkgfmay be used.

56. CEA 2010 · Reg 56JointsExpandedCEA 2023 · Reg 58Joints
    What changed · 89% of the old wording kept

    Provided that there shall be no joints in the conductor or earthwire in a span of crossing over the highways, expressways and railway lines.(2) The joint between conductors or earthwires of overhead lines shall be mechanically and electrically secured under the conditions of operation and theultimate strength and the electrical conductivity of the joint shall be as per relevant Indian Standards.standards.

57. CEA 2010 · Reg 57Maximum stresses and factors of safetyRevisedCEA 2023 · Reg 59Maximum stresses and factors of safety
    What changed · 68% of the old wording kept

    (2) Overhead lines not covered in sub-regulation (l)(1)shall have the followingminimum factors of safety, namely:- (ii) (iii) (iv) forsafety as per the table given below:- Description Minimum factor of safetymetal supports for mechaliically1.5 mechanicallyprocessed concrete supports for2.0hand-moulded concrete supports for2.5wood supports 2.0 2.53.0 (3) The minimum factorsfactorof safety shall be based on such load as may cause failure of the support to perform its function, assuming that the foundation'foundationand other components of the structure are intact. (4) The … on the ultimate tensile strength of the wire. (7) The minimum factor of safetytension limitfor conductor and earth wireshall be two, based on their ultimate tensile strength, in addition, the conductor's tension at 320 C, without external load, shall not exceed the following percentages of the ultimate tensile strength of the conductor:- Initial unloaded tension (ii) Final unloaded tension 35asper cent 25 per cent Provided that for the conductors having a cross section of a generally triangular shape, such as conductors composed of 3-wires, the final unloaded tension at 320 C shall not exceed thirty per cent of the ultimate tensile strength of such conductor,relevant standards.(8) For the purpose of calculating the factors of safety in sub-regulation (2), the following conditions shå_llshallbe observed, namely:-namely: –(i) the maximum wind pressure shall be as specified in the relevant Indian Standards;standards;(ii) for cylindrica; diescylindrical bodiesthe effective area shall be taken as full projected-projectedarea exposed to wind pressure; and (iii) the maximum and minimum temperatures shall be suchas specified in the relevant Indian Standards.standards.(9) Notwithstanding anything contained in sub-regulation (2) to (8)(8),in localities where overhead lines are liablelikelyto accumulations ofaccumulateice or snow, the load and permissible stresses on the structural members, conductors and groundearthwire of self supporting steel lattice towers and steel monopole towersfor overhead transmission lines shall be as per relevant standards andin accordance with the specifications laid down, from time to time, by the Bureau of Indian Standards or as specified byAppropriate Government,Governmentby order in writing.

58. CEA 2010 · Reg 58Clearance above ground of the lowest conductor of overhead linesRevisedCEA 2023 · Reg 60 · probableClearance in air of the lowest conductor of overhead lines
    What changed · 10% of the old wording kept

    Provided that(2) The minimum clearances regarding high voltage direct current line shall be as per Schedule VIII B. (3) In case of Electric lines of 33 kV and below passing throughthe minimum clearance alongprotected areas (National Parks, Wildlife Sanctuaries, Conservation Reserves, Community Reserves), Eco-sensitive zones around the protected areas and Wildlife Corridors, only underground cable shall be used. (4) No tower footingor acrossstructure of an overhead line of voltage 33 kV or above or high voltage direct current, shall be closer than twenty five metre from the edge of the right of way of a Petroleum or Natural Gas pipeline. (5) Wherever overhead line of voltage 33 kV or above or high voltage direct current intending to cross the right of way of a Petroleum or Natural Gas pipeline, the angle of crossing of the overhead line with respect to the pipelines shall preferably be at right angles and, inany streetcase, the crossing angleshall not be less than 6.1 metres. (5) For High Voltage Direct Current (HVDC) lines, the clearance above ground shall not be less than:- Sl.N0. DC Voltage(kV) 1. 2. 3. 4. 5. 6. 100 kV 200 kV 300 kV 400 kv 500 kV 600 kV 800 kV Ground Clearance (mtrs.) 6.1 7.3 8.5 9.4 10.6 11.8 13.9 (6) Ground clearances shall be as specified in schedule-X. (1) No conductor of anseventy five degrees.

59. CEA 2010 · Reg 59Clearance between conductors and trolley wiresMinor changesCEA 2023 · Reg 61Clearance between conductors and trolley wires
    What changed · 81% of the old wording kept

    Provided that where an insulated conductor suspended from a bearer wire crosses over a trolley wire the minimum clearance for such insulated conductor shall be 0.6 metre.(ii) (iii) (iv)lines of voltage exceeding 650 VoltsVup to and including 11,000 Volts11000 V - 1.8 metre; (iii)lines of voltage exceeding 11,000 Volts11000 Vbut not exceeding33,000 Voltsexceeding 33000 V - 2.5 metre; (iv)lines of voltage exceeding 33 kV 1.8. metres 2.5 metres-3.0 metresmetre.(2) In any case of a crossing specified in sub-regulation (1), whoever lays his overheadline later in time,later,shall provide the clearance between his own overheadline and the overheadline which will be crossed in accordance with the provisions of the said sub-regulation:sub-regulation (1):Provided that if the later entantentrantis the owner of the lower overheadline and is not able to provide adequate clearance, he … modification of the upper line so as to comply with this sub-regulation. 4]sub-regulation (1).

60. CEA 2010 · Reg 60Clearance from buildings of lines of voltage and service lines not exceeding 650 VoltsMinor changesCEA 2023 · Reg 62Clearance from buildings of lines of voltage and service lines not exceeding 650 V
    What changed · 86% of the old wording kept

    (2) Where an overhead line of voltage not exceeding 650 … point, on the basis of maximum sag, shall be observed, namely:- (ii) for.anynamely: – (i) for anyflat roof, open balcony, varandah roof and lean-to-roof-lean-to-roof, –(a) when the line passes above the buildingbuilding,a vertical clearance of 2.5 metresmetrefrom the highest point,point;and (b) when the line passes adjacent to the buildingbuilding,a horizontal clearance of 1.2 metresmetrefrom the nearest point, andpoint; (ii)for pi!ched roof-pitched roof, –(a) when the line passes above the buildingbuilding,a vertical clearance of 2.5 metresmetreimmediately under the line,line;and (b) when the line passes adjacent to the buildingbuilding,a horizontal clearance of 1.2 metres.metre.(3) Any conductor so situated as to have a clearance less than that specified abovein sub-regulation (2)shall be adequately insulatedreplaced with Aerial Bunched Cableand shalltobe attached at suitable intervals to a bare earthed bearer wire having a breaking strength of not less than 350 kg.kgf.(4) The horizontal clearance shall be measured •whenwhenthe line is at a maximum deflection from the vertical due to wind pressure. (5) VerticalThe verticaland horizontal clearances shall be measuredas specifiedper illustration providedin schedule-X. Explanation:-Schedule VIII C. Explanation. –For the purposepurposesof this regulation, the expression "building"“building”shall be deemed to include any structure, whether permanent or temporary.

61. CEA 2010 · Reg 61Clearances from buildings of lines of voltage exceeding 650 VRevisedCEA 2023 · Reg 63Clearances from buildings of lines of voltage exceeding 650 V
    What changed · 74% of the old wording kept

    (2) Where an overhead line of voltage.voltageexceeding 650 V passes above or adjacent to any building … of the building immediately under such line, of not less than-than, –(i) for lines of voltages exceeding 650 VoltsV and up to and including 33 kV- 3.7 metres upto•and including 33,000 Volts (ii)formetre; (ii) forlines of voltages exceeding 33 kV - 3.7 metresmetreplus 0.30 metre for every additional 33,000 Volts33 kVor part thereof. (3) The horizontal clearance between the nearest … of maximum deflection due to wind pressure, be not less than- (ii) (iii) 1.2 metresthan, – (i)for lines of voltages exceeding 650 V uptoand up toand including 11,000 Volts 2.0 metres11 kV - 1.2 metre; (ii)for lines of voltages exceeding 11 *000 V -11kVand up to and including 33,000 V33 kV- 2.0 metres plus 0.3metre; (iii)for lines of voltages exceeding 33 kV - 2.0metre foreplus 0.3 metre forevery additional 33kV33 kVor part thereof. (4) For High Voltage Direct Current (HVDC)high voltage direct currentsystems, thevertical clearanceand horizontal clearance,clearances,on the basis of maximum deflection due to wind pressure, from buildings shall be maintained as below: Sl.N0 DCSl. No. HighVoltage (kV)Direct CurrentVertical Clearance (metre)Horizontal Clearance (metre)1. 2. 3. 4. 5. 6.100 kV 4.6 2.9 2.200 kV 5.8 4.1 3.300 kV 7.0 5.3 4.400 kV 7.9 6.2 5.500 kV 9.1 7.4 6.600 kV 10.3 8.6 7.800 kV (mtrs.) 4.6 5.8 7.0 7.9 9.1 10.312.4 Clearance (mtrs.) 2.9 4.1 5.3 6.2 7.4 8.610.7 (5) VerticalThe verticaland horizontal clearances shall be as specifiedmeasured as illustratedin schedule-X. Explanation:-Schedule VIII C. Explanation. –For the purposepurposesof this regulationregulation,the expresssion "building"expression “building”shall be deemed to include any structure, whether permanent or temporary.

62. CEA 2010 · Reg 62Conductors at different voltages on same supportsRevisedCEA 2023 · Reg 64 · probableConductors at different voltages on same supports
    What changed · 0% of the old wording kept

    Ill—üog 4]Conductors at different voltages on same supports. – Where conductors of different voltages are laid on the same supports, the owner shall make adequate provision to guard against danger to linemen and others, from the lower voltage system being charged above its nominal voltage, by leakage from or contact with the higher voltage and the methods of construction and the applicable minimum clearances between the conductors of the two systems shall be as provided in regulation 71.

63. CEA 2010 · Reg 63Erection or alteration of buildings, structures, flood banks and elevation of roadsMinor changesCEA 2023 · Reg 65Erection or alteration of buildings, structures, flood banks and elevation of roads
    What changed · 84% of the old wording kept

    (2) On receipt of such intimafion,intimation,the supplier or owner shall examine,- (i)(a)whether the overheadline or underground cableunder reference was laid in acordance 'withaccordance withthe provisions of these regulations and any other law; (ii)law for the time being in force; (b)whether it is technically feasible; (iii)(c)whether it meets the requirement of Rightrightof Way (ROW); (iv)way; and (d)whether such person was liable to pay the cost of alteration of the overhead line or underground cableand if so, sendissuea notice without undue delay,within a period of thirty daysto such person together with an estimate of the cost of the expenditure likely to be incurred to scalter the overhead line or underground cableand require him to depositsdeposit,within thirty days cfofthe receipt of the notice, with the supplier or ovmer,owner,the amount of the estimated cost. (3) If such person di$putesdisputesthe cost of alteration of the overhead line or underground cableestimated by the supplier or owner or even the responsibility to pay such cost, the dispute may be referred to the Electrical Inspector whose decision thereofwhoshall be final.after hearing both parties decide upon the issue in accordance with sub-regulation (4).(4) The Electrical Inspector shall estimate the cost of alteration of overhead line or underground cableon the fpllowingfollowingbasis, namely:- (i)namely: – (a)the cestcostof material used onforthe alteration after creditingaccounting forthe depreciated cost of the material which shall be available fromofthe existing line; (ii)line or underground cable; (b)the wages of labour employed in affectingthe alteration; (iii)and (c) thesupervision chargeschargeto the extent of,offifteen per cent of the wages mentioned in subclause (ii);(b)and charges incurred by the owner orsupplier or ownerconsumerin complying with the provisions of section 67 of the Act, in respect of suchalterations. (5) Any addition or alteration to the building or structure shall be allowed only after the depositedepositof such estimated cost to the supplier or owner. (6).(6)No work upon such abuilding,building,structure, flood bank, road and addition or alteration thereto shall be commencedcommenceor continuedcontinueuntil the Electrical Inspector has certifiedcertifiesthat the provisions ofregulations 60, 62 , 63, 66 andregulation 58, 60 and 61 should79 havenot bebeencontravened either during or after the aforesaid constuction:construction:Provided that the ElecticalElectricalInspector may, if he is satisfied that the overhead line or underground cablehas been so guarded as to secure the protection of persons or property from injury, certify within fifteen daysthat the work may be executed prior to the alteration of the overhead line or underground cable orin the case of temporary addition or alteration, without alteration of the overhead line.line or underground cable.(7) The supplier or owner shall, on receipt of such deposit, alter the overhead line or underground cablein such a way that it does not contravene the provisions regulation 58, 60regulations 60, 62, 63and 6179either during or after such construction within two months from … or within such longer period as the Electrical Inspector may allow.permit for reasons to be recorded in writing.

64. CEA 2010 · Reg 64Transporting and storing of material near overhead linesRevisedCEA 2023 · Reg 66Transporting and storing of material near electric lines
    What changed · 78% of the old wording kept

    Provided that if these materials contravene the regulations 62 and 63, such materials shall be transported under the direct supervision of a person designated or appointed or engaged or permitted under these regulations.(2) No rods, pipes or other similar materials shall be brought within the flash over distance of bare live conductors or overheadlines. (3) No material or earth work oxdgriculturalor agriculturalproduce shall be dumped or stored, no trees grown below or in the vicinity of,ofbare overhead conductors,conductorsor lines in contraventionto contravenethe provision ofregulations 6062and 61.63.(4) No flammable material shall be stored under the electric supplyline. (5) No fire shall be allowed below overhead lines andabove the demarcatedunderground cables. (6) Firing of any material below electric lines shall be prohibited.

65. CEA 2010 · Reg 65General clearancesMinor changesCEA 2023 · Reg 67General clearances
    What changed · 87% of the old wording kept

    59.(2) No blasting for any purpose shall be done within 300 metresthree hundred metrefrom the boundary of a sub-stationsubstationor from the electric supply lines of voltage exceeding 650 V or tower stucturestructurethereof without the written permission of the owner of such sub-stationsubstationor electric éupplysupplylines or tower snucturesstructures;and in case of mining lease hold area, without the written permission of the ElectricalInspector of Mines.mines.(3) No cutting of soil within ten metersmetrefrom the tower sfructurestructureof 132110kV and above voltage level shall be permitted without the written pennissionpermissionof the owner of tower stucture, Istructure.(4) No person shall construct brick kiln or other polluting units near the installations or transmission lines of 220 kV and above within a distance,ofdistance of500 metres.metre.

66. CEA 2010 · Reg 66Routes proximity to aerodromesExpandedCEA 2023 · Reg 68Routes in proximity to airport or aerodromes
    What changed · 82% of the old wording kept

    Routes inproximity to aerodromes.-airport or aerodromes. –Overhead lines shall not be erectedlaidin the vicinity of airport oraerodromes unless the Airport Authorities or concerned defence authoritieshave approved in writing the route of the proposed lilies asperoverhead lines as perrelevant Indian Standards,standards.

67. CEA 2010 · Reg 67Maximum interval between supportsMinor changesCEA 2023 · Reg 69Maximum interval between supports
    What changed · 83% of the old wording kept

    Provided that in the case of overhead lines .carryingcarryingconductors of voltage not exceeding 650 V when erected in, over;laid over,along or across any street, the interval shall not, without the consent in writing of the Electrical Inspector, •exceed 65 metres.exceed sixty five metre.

68. CEA 2010 · Reg 68Conditions to apply where telecommunication lines and power lines are carried on same supportsRevisedCEA 2023 · Reg 70Conditions to apply where telecommunication lines and power lines are carried on same supports
    What changed · 64% of the old wording kept

    (2) Every telephone used on atelecommunication line erectedlaidon supports carrying a powerof an electricline shall be suitably guardedprotectedagainst lightning and 'shall be protected by cut-outs.as per relevant standards.(3) Where a telecommunication line is erectedlaidon supports carrying a powerof an electricline of voltage exceeding 650 V, a suitablearrangement shall be made to safeguard •anyanyperson against injury resulting from contact, leakage or induction between Such powersuch electricand telecommunication.telecommunicationlines.

69. CEA 2010 · Reg 69Lines crossing or approaching each other and lines crossing street and roadRevisedCEA 2023 · Reg 71Lines crossing or approaching each other and lines crossing street and road
    What changed · 67% of the old wording kept

    (i) when it is intended to erect a telecommunication line or an overhead line which will cross • or be in proximity to an overhead •line or a telecommunication line, as the case may be, the. person proposing to erect such line shall give one-month's notice of his' intention so to do along with the relevant details of protection and drawings to the owner of the existing line;(ii) guarding arrangementshall be provided where linesa lineof voltage not exceeding 33 kV crosscrossesa road or street;street or telecommunication line;(iii) where an overhead line crosses or is in proximity to another overhead line, guarding arrangements shall be provided so asto guardsafeguardagainst the possibility of their coming into contact with each other; 374701/10--30and(iv) where an overhead line crosses another overhead line, minimumclearances as provided in the table belowshall be as under:- (Minimumensured:- Minimumclearances in metresmetrebetween lines crossing each other) No I. 6'.other Sl. No.Nominal System Voltage Low and Medium(kV)11-66 kV 110-132 kV 220 kV 400 kV 800765kV 11-66kV 110-132 2201200kV 400 kV 800 2.441. below 112.44 3.05 4.58 5.49 7.94 kV10.44 2. 11-66 2.443.05 4.58 5.49 7.94 10.44 3. 110-1323.05 3.05 4.58 5.49 7.94 4.5810.44 4.4.58 4.58 4.58 5.49 7.94 5.4910.44 5.5.49 5.49 5.49 5.49 7.94 10.44 6.7.94 7.94 7.94 7.94 7.94 7.9410.44 10.44 10.44 10.44 10.44 10.44 10.44Provided that no guardings areguarding arrangement isrequired when an electricline of voltage exceeding 33 kV crosses over another line of 250 V and above voltage or a road or a.atram subject to the condition that adequate clearances are provided … exceeding 33 kV and the clearances as stipulated in regulation 5860from the topmost surface of the road maintained; (v) where an overhead direct current (DC)line crosses another overhead line, minimumclearances as provided in the table belowshall be as under:- (Minimumensured:- Minimumclearances in metresmetrebetween AC and DC lines crossing each other) No. 2. 3. 4- Sysytemother Sl.No. SystemVoltage AC/DC Low and Medium AC 11-66100kV AC 110-132 kV AC 220 kV ACDC200 kV DC DC 3.05 3.05 3.05 4.58 4.71 DC 4.71 4.71 4.71 4.71 4.71 DC 5.32 5.32 5.32 5.32 5.32 DC 6.04 6.04 6.04 6.04 6.04 DC 6.79 6.79 6.79 6.79 6.79 DC 7.54 7.54 7.54 7.54 7.54300 kV AC 400 kV ACDC400 kV DC 500 kV DC 600 kV DC 800 kV DC *5.321. below 11 kV AC 3.05 4.71 5.32 6.04 6.79 7.54 9.04 2. 11-66 kV AC 3.05 4.71 5.32 6.04 6.79 7.54 9.04 3. 110-132 kV AC 3.05 4.71 5.32 6.04 6.79 7.54 9.04 4. 220 kV AC 4.58 4.71 5.32 6.04 6.79 7.54 9.04 5. 200 kV DC 4.71 4.71 5.32 6.04 6.79 7.54 9.04 6. 300 kV AC 5.32 5.32 5.32 6.04 6.79 7.54 9.04 7. 400 kV AC 5.49 5.495.49 6.04 6.79 7.54 5,32 5.499.04 8. 400 kV DC6.04 6.79 7.54 7.94 7.94 5.32 5.49 6.04 6.79 7.54 7.946.04 6.04 6.04 6.79 7.54 7.949.04 9. 500 kV DC 6.796.79 6.79 6.79 6.79 7.54 7.949.04 10. 600 kV DC7.54 7.54 7.54 7.54 7.54 7.54 9.04 11. 765 kV AC7.94 7.94 7.94 7.94 7.94 7.94 9.04 12. 800 kV DC 7.94 7.94 7.94 7.94 7.94 9.04 9.04 13. 1200 kV AC 10.44 10.44 10.44 10.44 10.44 10.44 10.44(vi) a person erectinglayingor proposing to erectlaya line which may cross or be in proximity with … devices shall be borne by the person whose line was last erected;laid later;(viii) where two lines cross,cross each other,the crossing shall be made as nearly at right angles … and the support of the lower line shall not be erected .belowplaced in the right of way ofthe upper line; and(ix) the guarding arrangements'shall ordinarilyarrangement shallbe carried out by the owner of the supportssupporton which it is made and he shall be responsible for its efficient maintenace.proper maintenance.

70. CEA 2010 · Reg 70GuardingRevisedCEA 2023 · Reg 72Guarding
    What changed · 68% of the old wording kept

    (i) every guard-wireguard wireshall be connected with theearth at each point at which its electrical contimiitycontinuityis broken; (ii) every guard-wireguard wireshall have an actual breaking strength of not less than 635 kgkgfand if made of iron or steel ,steel,shall be galvanised; and(iii) every guard-wireguard wireor cross-connected systemssystemof guard-wiresguard wiresshall have sufficient current-carryingcurrent carryingcapacity to ensure them rendering dead, without risk of fusing of the guard-wire or wires,guard wire,till thecontact of any live wire has been removed. (2) In the case of äaline crossing over a troll*iretrolley wire,the guarding arrangementshall be subjected to the following conditions, namely:-.namely: –(i) where there -isisonly one trolley-wire, two guard-wires shall be erectedprovidedas illustratedin DIAGRAM-A; (ii) where there are two trolley —wireswiresand the distance between them.themdoes not exceed 40 cms,forty centimetre,two guard-wires shall be -eréctedprovidedas illustratedin DIAGRAM-B; (iii) where there are two trolley wires and the distance between them exceéds 40 cmsexceeds forty centimetrebut does not exceed 1.2 metres,metre,three guard-wires shall be erectedprovidedas illustratedin DIAGRAM-C; (iv) where there are two trolley-wires and the distance between them exceeds 1.2 metres,metre,each trolley-wire shall be _separately guarded as illustratedin DIAGRAM-D; DIAGRAM-A 20 cm 20 cm O O MIN 60 cm O ______________________________________________________________ DIAGRAM-B DIAGRAM-C 20 cm 20 cm 20 cm 20 cm O O O O O MIN MIN MIN MIN 60 cm 60 cm 60 cm 60 cm O Upto O O Over O 40 cm 40 cm and upto 120 cm _____________________________________________________________ DIAGRAM-D 20 cm 20 cm 20 Cms 20 cm O O O O 60 cm 60 cm O O Over 120 cm(v) the rise of trolley boom shall be solimited suchthat whenthe trolley leaves the trolley-wire, itwireshall not foul the guard-wires;guard wires;and (vi) where a telegraph-line is liable toetofall or be blown down upon an arm, staywwirestay-wireor span-wire and so slide-down upon a trolley-wire, guard hooks shall be provided to prevent such sliding. DIAGRAM-A 20 Cms 20 Cms MIN 60 Cms o I DIAGRAM-B O t MIN 60 Cms 20 Cms Cms MIN 60 Cms 20 Cms DIAGRAM-C O MIN 60Cms 20 Cms t o MIN 60 Cms 40 Cms 20 Cms 20 Cms s O over O 40 Cms and üpto 120cms DIAGRAM-D OVER 120cms. 20 Cms 60 ms 20 Cms O

71. CEA 2010 · Reg 71Service lines from overhead linesMinor changesCEA 2023 · Reg 73Service lines from overhead lines
    What changed · 96% of the old wording kept

    Provided that the number of tappings per conductor shall not be more than foursixin case of connections at voltage not exceeding 650 V.

72. CEA 2010 · Reg 72EarthingRevisedCEA 2023 · Reg 74 · probableEarthing
    What changed · 51% of the old wording kept

    (2) Metallic bearer wire used for supporting -insulated wire(a) all metal supports and all reinforced and pre-stressed cement concrete supportsof overhead servicelines and metallic fittings attached thereto, shall be permanently and effectively earthed by providing a continuous earth wire and securely fastened to each pole and connected with the earth at each support and the metallic fittings attached thereto shall also be permanently and effectively earthed; (b) metal cross arms and insulator pins for Plain Cement Concrete and Pre-Stressed Cement Concrete poles shall be bonded together and normally earthed at every pole; (c) for locations involving railways, electric line crossings and special structures, pipe or rod type earthing shall be provided; (d) all steel poles on which switches, transformers, fuses are mounted shall be earthed; (e) for polesof voltage not exceedingthe electric lines below650 V guarding arrangement with continuous earth wire or messenger wire in case of aerial bunched cableshall be efficiently earthed or insulated. (3) Eagh Stay-wireprovided and shall be connected to earth at three equidistant points in every km; and (f) each stay-wireshall be similarly earthed unless insulator of same voltage class as that of linehas been placed in it at a height not less than 3.0 metres from•the grourid.three metre from the ground and shall be provided with insulated tube up to three metre height from the ground. (2) For 66 kV and above voltage class overhead line, earthing and requirement of earth wire shall be as per the regulations notified by the Authority under clause (e) of sub-section (2) of section 177 of the Act.

73. CEA 2010 · Reg 73Safety and protective devicesRevisedCEA 2023 · Reg 76 · probableSafety and protective devices
    What changed · 30% of the old wording kept

    (2) An Electrical Inspector may, by notice in writing, require the owner of any such overhead line, wherever it may be erected,laid,to protect it in the manner specified in sub-regulation (1).(1) of this regulation.(3) The owner of every overhead line of voltage exceeding 650 V shall make adequate arrangementsTo prevent bird dropping on the suspension insulator strings, suitable bird guardsas per relevant Indian Standards to prevent undesignated persons from ascending any of the supports of such overhead lines which can be easily climbed upon without the help ofa ladder or special appliances. Explanation.- Föt the purpose of this relgulation, rails, reinforced cement concrete poles and pre-stressed cement concrete poles without steps, tubular poles, wooden supports without steps, I-sections and channels'standards,shall be deemed as supports which cannot be easily climbed upon.provided on cross arms of suspension tower or suspension pole structures, over the suspension insulator strings.

74. CEA 2010 · Reg 74Protection against lightningExpandedCEA 2023 · Reg 77Protection against lightning
    What changed · 89% of the old wording kept

    (2) The earthing lead for any lightning arrestorarrester shall be as short as possible andshall not pass through any iron or steel pipe, but shall be taken as directly as possible from the lightning arrestor -withoutarrester withouttouching any metal part to a separate-vertical groundseparate vertical earthelectrode or junction of the earth mat already provided for the sub-stationsubstationof voltage exceeding 650 V subject to the avoidance of bends wherever practicable.practicable: Provided that a vertical earth electrode shall be connected to the junction of the earth mat.

75. CEA 2010 · Reg 75Unused overhead linesMinor changesCEA 2023 · Reg 78Unused overhead lines
    What changed · 95% of the old wording kept

    (i) the owner shall maintain it in a safe mechanical condition in accordance with regulation 5759or remove it.it; and(ii) the Electrical Inspector shall, by a notice in writing … him to maintain it in a safe mechanical condition or •totoremove it within thirty days of the receipt of the notice.

76. CEA 2010 · Reg 76Laying of cablesExpandedCEA 2023 · Reg 79Laying of cables
    What changed · 85% of the old wording kept

    Provided that the underground power cable meant for use exceeding 33 kV shall be laid with a minimum underground depth of 1.2 metre.(2) No underground telecommunication cable shall be laid without a minimum separation distance of 0.3 metre and0.6 metersmetreto the underground power cable of-ofvoltage up to 33 kV andexceeding 33 k V.kV, respectively.

77. CEA 2010 · Reg 77Protection against electromagnetic interferenceRevisedCEA 2023 · Reg 80Protection against electromagnetic interference
    What changed · 27% of the old wording kept

    Chapter VIII AdditionalSafety requirements for-Electric Traction (l) The regulations in this chapter shall apply onlyfor electric traction

78. CEA 2010 · Reg 78Application of chapterMinor changesCEA 2023 · Reg 81Application of Chapter
    What changed · 93% of the old wording kept

    Provided tha.tthatnothing in this chapter shall apply to electricity used for the public carriage of passengers, animals or goods on, or fc*-forthe lighting or ventilation of the rolling stock of any railway or trdmwaytramwaysubject to the provisions of the Railways Act, 1989 (24 … transmitting electricity to a vehicle is referred to as the "line"“line”and the other conductor as the "return".“return”.(3) The owner of the line, retum,return,rails or trolley wire, as the case may be, shall be responsible for the observance of regulations 7982to 92.95.(4) Before an application is made by the owner of an installation of voltage exceeding 650 V to the ElectricålElectricalInspector for permission to commence or recommence supply after such installation has been disconnected for six months and above, the supplier shall ensure that the_electricthe electricsupply lines or apparatus at voltage exceeding 650 V belonging … the Electrical Inspector is satisfied that the provisions of regulations 4446to 5052and regulation 7.9regulations 82to 9295have been complied with and the approval in writing of the Electrical Inspector has been obtained by him.

79. CEA 2010 · Reg 79Voltage of supply to vehicleMinor changesCEA 2023 · Reg 82Voltage of supply to vehicle
    What changed · 95% of the old wording kept

    Voltage of supply to vehicle.-vehicle. –No person shall supply electricity to any trolley wire or other conductor at voltage exceeding 650 V used Iinindirect electrical and mechanical connection with any vehicle, except with … may be, and subject to such conditions as the State GovemmentGovernmentmay think reasonable to impose.

80. CEA 2010 · Reg 80Insulation of linesMinor changesCEA 2023 · Reg 83Insulation of lines
    What changed · 92% of the old wording kept

    Insulation of lines.-lines. –Every line shall be insulated throughout and a line may consist of either bare conductors supported on structures through insulators or insulated cable,cable.

81. CEA 2010 · Reg 81Insulation of returnsMinor changesCEA 2023 · Reg 84Insulation of returns
    What changed · 95% of the old wording kept

    85.(2) Where any part of a return is un-insulated,uninsulated,it shall be connected with the negative or neutral of the system.

82. CEA 2010 · Reg 82Proximity to metallic pipesMinor changesCEA 2023 · Reg 85Proximity to metallic pipes
    What changed · 93% of the old wording kept

    (2) Where the return is partly or entirely un-insulated,uninsulated,the owner shall, in the conStructionconstructionand maintenance of his system, adopt such means for reducing the difference produced by the current between the potential of the un-insulated.uninsulatedreturn at any one point and the potential of the un-insulateduninsulatedreturn at any other point as to ensure that the difference of potential between the un-insulateduninsulatedreturn and any metallic pipe, structure or substance in the vicinity shall nötnotexceed four volts where the return is relatively positive, or … is relatively negative. (3) The owner of any such pipe, sfruéturestructureor substanc•esubstancein respect of it require the owner of the un-insulateduninsulatedreturn at,reasonableat reasonabletimes and intervals to ascertain by test in his presence … test shall be borne by the owner of the pipe, sfructurestructureor substance. (4) The potential of un-insulateduninsulatedreturn with respect to earth at any point shall not exceed fifty volt50 Vunder normal conditions. (5) The petroleum sidings installation earth shall be connected to the un-insulateduninsulatedreturn to make it equi-potentialequipotentialand pipelines in the vicinity of the track should be properly earthed.

83. CEA 2010 · Reg 83Difference of potential on returnMinor changesCEA 2023 · Reg 86Difference of potential on return
    What changed · 90% of the old wording kept

    Difference of potential on return.-return. –Where the return is partly or entirely un- insulated,uninsulated,the owner shall keep a continuous record of the difference … system, between every junction of an insulated return with an un-insulateduninsulatedreturn and the point on the route most distpntdistantfrom that junction, and the difference. •of hdifference ofpotential shall not, under normal running conditions;conditions,exceed a mean value of seven volts between the highest momentary peak and the average for the hour of maximum load.

84. CEA 2010 · Reg 84Leakage on conduit systemRevisedCEA 2023 · Reg 87Leakage on conduit system
    What changed · 28% of the old wording kept

    (i) where(ii)the rails are used to form •any part of the retum, theyleakage currentshall be electrically connected at distances not exceeding 30 me&es the conduit by means of copper: sfrips having a cröss•sectional area of at least 0.40 sq. cm. or by other means of equal conductivity and where the return is wholly insulated and contained within the conduit, the latter shall be connected with Carth at the gdneråting station or sub-station through an instrument suitable for the indication of. any contact ot iartial contact of either the line or the retum with the conduit; and (ii) the leakage-current shallascertained daily, before or after the .hours,of running*hours of running,when the line is fully charged and if at any time it is foun4 to.found toexceed 0.6 ampere per km of single tramway track,the transmission and use ofelectricityof electricityshall be suspended unless the leakage is stopped within twenty four hours.

85. CEA 2010 · Reg 85Leakage on system other than conduit systemSame textCEA 2023 · Reg 88Leakage on system other than conduit system
86. CEA 2010 · Reg 86Passengers not to have access to electric circuitSame textCEA 2023 · Reg 89Passengers not to have access to electric circuit
87. CEA 2010 · Reg 87Isolation of sectionsMinor changesCEA 2023 · Reg 90Isolation of sections
    What changed · 92% of the old wording kept

    Isolation of sections.-sections. –Every trolley wire shall be constructed in sections not exceeding 1.6 km.kmin length, and means shall be provided for isolating each section.

88. CEA 2010 · Reg 88Minimum size and strength of trolley wireRevisedCEA 2023 · Reg 91Minimum size and strength of trolley wire
    What changed · 36% of the old wording kept

    Minimum size and strength of trolley wire.- No trolley-wire shall be of less cross-sectional area than 0.5 sq. cm. otcm orshall have an actual breaking load of less than 2000 kg.

89. CEA 2010 · Reg 89Height of trolley wire and length of spanSame textCEA 2023 · Reg 92Height of trolley wire and length of span
90. CEA 2010 · Reg 90Earthing of guard wiresSame textCEA 2023 · Reg 93Earthing of guard wires
91. CEA 2010 · Reg 91Proximity to magnetic observatories and laboratoriesMinor changesCEA 2023 · Reg 94Proximity to magnetic observatories and laboratories
    What changed · 95% of the old wording kept

    Proximity to magnetic observatories and laboratories.-laboratories. –Traction works shall not be carried out in the vicinity of geomagnetic.geomagneticobservatories and laboratories without the concurrence of the Central Government or of any officer authorised by it in this behalf.

92. CEA 2010 · Reg 92RecordsMinor changesCEA 2023 · Reg 95Records
    What changed · 85% of the old wording kept

    (i) daily records showing —showing, –(a) the maximum working current from the source of supply; (b) the maximum working voltage at the source of supply; (c) the-differencethe differenceof potential, as required under regulation 83;86;and [PART MI—SEC. 41(d) the leakage current, if-any,if any,as required under regulation 84regulations 87and 85.88;(ii) occasional records showing --showing, –(a) every test made under sub-regulation (2) and (3) of regulation 8285;(b) every stoppage of leakage, together with the time occupied; … of the system. (2) The records so kept under sub-regulation (l)(1)shall be open to examination by Electrical Inspector. Chapter IX AdditionalSafety requirements for mines and oil fieldsoil-fields

93. CEA 2010 · Reg 93Application of chapterMinor changesCEA 2023 · Reg 96Application of chapter
    What changed · 83% of the old wording kept

    Application of chapter.-chapter. –The regulation in this chapter shall*shallapply only where electricity is used in mines as defined in the Mines Act, 1952 (35 of 1952)rand oil fields.1952) and oil-fields.

94. CEA 2010 · Reg 94Responsibility for observanceRevisedCEA 2023 · Reg 97Responsibility for observance
    What changed · 67% of the old wording kept

    (2) In everyProvided that in case of power stations, transformer substations, converter substations, rectifier substations and accumulator, storage stations for supplying electricity to solely and mainly for the purpose of working of themine or oil-field while electricity is being used suchnumber of designated supervisörsminesand electrici4nswhich do not fall in the precincts of a mine, Engineer holding a degree in electrical engineering from university with adequate experience maybe on dutyappointedas the owner may decide. Explanation —manager of that installations. Explanation. –For the purposes of this regulation, the word "Engineer" shall“Engineer” shall, –(i) in the case ofaof acoal mine, have the same meaning as assigned to it in the Coal Mines Regulations, 1957;2017;(ii) in the case of a metalliferous mine, have the same meaning as assigned to it in the Metalliferous Mines Regulations,.1961 ;Regulations, 1961, as amended from time to time;and (iii) in the case of an oil mine, meanoil-field, meansthe 'Installation ManagersInstallation Manager‟under the Oil Mines Regulations, 1984.2017.

95. CEA 2010 · Reg 95NoticesExpandedCEA 2023 · Reg 98Notices
    What changed · 92% of the old wording kept

    (2) The persons specified in regulation 94,97,shall also give to the inspectorElectrical Inspectorof mines not less than seven days nöticenoticein writing of the intention to bring into use any … V, immediate notice in writing shall be sent to the inspectorElectrical Inspectorof mines before such additions or;alterationsor alterationsare brought into use.use:Provided further that this regulation shall not apply to telecommunication or signaling apparatus.signalling apparatus: Provided also that in case of emergency which may lead to loss of life or machinery and is detrimental to safety of mine, intimation shall be given within twenty four hours to the Electrical Inspector of mines giving the healthiness of the apparatus alongwith self-certification report of such additions or alterations undertaken.

96. CEA 2010 · Reg 96PlansMinor changesCEA 2023 · Reg 99Plans
    What changed · 91% of the old wording kept

    (2) A similar plan on the scale not less than 25 cm.cmto a km. (l :4000)km (1:4000)shall be kept by the manager or owner of one or more wells in any oil-field,oil-field.(3) A similar plan and Single Line Diagramon such scale as the Central Government may direct,direct and Single Line Diagramshowing the position of all electric supply lines,linesshall be kept in .thetheoffice of any licenseelicensee, owneror other person transmitting or distributing electricity in a mine or oil-field,oil-field. (4)The plans specified under this regulation shall be examined and corrected as often as necessary to keep them up-to-date and the dates of *suchsuchexaminations shall be entered thereon by the manager or owner … available to the Inspector, or inspector of mines, at any time.time and in case extent of hazardous area is revised, equipment covered under such area shall be reviewed as per the relevant standards and or ATmosphere EXplosible.

97. CEA 2010 · Reg 97Lighting, overhead lines, communication and fire precautionsExpandedCEA 2023 · Reg 100Lighting, overhead lines, communication and fire precautions
    What changed · 92% of the old wording kept

    Provided that in a belowground coal mine, such lighting fixtures shall be of a type approved by the Chief Inspector of mines: Provided further that one or more flame safety lamps or such lighting system approved by the Chief Inspector of mines shall be maintained in all places where failure of the electric light at any time shall be prejudicial to safety: Provided also that in a belowground metalliferous mine or any open cast mine or oil-fields, such lighting fixtures shall be suitable for the type of application conforming to the relevant standards or harmonised standards, and adequate emergency lighting system shall be maintained in all places where failure of the electric light at any time shall be prejudicial to safety.(2) Efficient means of communication shall be provided in every mine between the point where the switchgear under sub-regulation (l)(1) ofregulation 105107is erected, the shaft bottom and other distributing centres in the mines. (3) Fire extinguishing appliances of adequate capacity and of an approved type•type as per relevant standards as amended from time to timeshall be installed and properly maintained in every place in a mine containing apparatus, other than cables, telecommunication and signalingsignallingapparatus. (4) In case of mines, minimum clearance above ground of the lowest conductor of over headoverheadlines or over headoverheadcables where dumpers or trackless vehicles are being operated, shall not be less than twelve metersmetrein height from the ground across the road where dumpers or trackless vehicles cross.cross: Provided that where dumper bucket in raised position, the clearance between the top of dumper body and to the lowest conductor of overhead lines or overhead cables shall not be less than one metre.

98. CEA 2010 · Reg 98Isolation and fixing of transformer and switchgearMinor changesCEA 2023 · Reg 101Isolation and fixing of transformer and switchgear
    What changed · 93% of the old wording kept

    (2) Unless -the apparatus-isthe apparatus isso constructed, .protectedprotectedand worked as to obviate the risk of fire, no -inflammableinflammablematerial shall be used in the construction-ofconstruction ofany room, compartment or box containing apparatus, or in the construction of any of Ithethefittings therein and each such room, compartment or box shall … and efficient ventilation shall be provided for all apparatus installed therein,therein.(3) 'AllAllapparatus that has to be worked or attended to and … obstruction and free from danger, so far as circumstances permit.

99. CEA 2010 · Reg 99Method of earthingMergedCEA 2023 · Reg 102 · probableMethod of earthing
100. CEA 2010 · Reg 100Protective equipmentExpandedCEA 2023 · Reg 103Protective equipment
     What changed · 81% of the old wording kept

     Provided that all electrical installations, in or after notification of these regulations, of voltage exceeding 1100 V and up to 11 kV for below ground mines, open cast mines and oil mines or oil-fields, the magnitude of the earth fault current shall be limited up to 10 A by employing suitably designed, restricted neutral system of power supply including neutral-ground monitoring protection system: Provided further that the settings of protective relays thereof shall be set between 200 to 400 milliampere for individual apparatus of voltage up to 1100 V with suitable time delay protection.(2) The operation of the switchgear and the relays shall be recorded daily at the generating station, sub-stationsubstationor switch station-instation ina register kept for the purpose.purpose and in electronic form also.(3) The effectiveness of theswitchgear and theprotective system shall always be kept and maintainedin working order,order andshall be checked by calibrating and testing at leastonce every three monthsin a yearand the result thereof shall be recorded in aseparate register kept for the purpose.purpose and in electronic form: Provided that wherever numerical relays are being used they shall be checked by testing procedure as per guidelines of original equipment manufacturer or the relevant standards and periodicity of such checking shall be at least once in a year.

101. CEA 2010 · Reg 101Earthing metalMergedCEA 2023 · Reg 102Method of earthing
102. CEA 2010 · Reg 102Voltage limitsExpandedCEA 2023 · Reg 104Voltage limits
     What changed · 85% of the old wording kept

     Provided that-that, -(i) where hand-held portable apparatus is used, the voltage shall not exceed 125 v;V;(ii) where electric lighting is used,'used, –(a) in undergroundbelowgroundmines, the lighting system shall have a mid or neutral … phases; (b) on the surface of a mine or in am:openan opencast mine,mine or oil mines or oil-fields,the voltage may be raised to 250 V, -ififthe neutral or the niid pointmid-pointof the system is connected with earth and the voltage … exceed 250 V; (iii) where portable hand-lamps are used in underground workingbelowground mines and hazardous areaof mine,oil mines or oil-fields,the voltage shall not exceed 30 V; (iv) where any … inter-locking of apparatus, the circuit voltage shall not exceed 30 V:V for below ground mine or hazardous area of oil-fields: Provided that in hazardous areas of oil mines or oil-fields, the said voltage can be up to 250 V, if the on- off control push-button stations or remote controls are housed in an appropriate enclosure like: (i) Flame proof enclosure type „d‟; (ii) Pressurised enclosure type „p‟; (iii) Sand filled apparatus type „q‟; (iv) Increased safety enclosure type „e‟, „n‟, and „o‟:Provided further that the control circuit shall have suitable protection against shock hazards, and the trippings due to faults do not adversely affect the operational safety: Provided also thatin fixed plants,plants on surface of the mines or opencast mines,the said voltage for the remote control or electric inter-lockingmay be permitted upto 650 V, if the bolted type plug is used.up to 250 V.

103. CEA 2010 · Reg 103TransformersRevisedCEA 2023 · Reg 105Transformers
     What changed · 76% of the old wording kept

     Transformers.- Where electricity is transformed,Transformers. – In mines or oil-fields, the transformers used for providing voltages to control circuits or remote control or interlocking or for hand held apparatus, shall havesuitable provision shall be madeto guard against danger by reason of the lower voltage … its normal voltage by leakage from or contact with the -higherhighervoltage apparatus.

104. CEA 2010 · Reg 104Switchgear and terminalsMinor changesCEA 2023 · Reg 106Switchgear and terminals
     What changed · 95% of the old wording kept

     (ii) all conductors and contact areas shall be of adequate … soldered or otherwise efficiently made; (iii) the lodgement of any matt.ermatterlikely to dimiiiiéhdiminishthe insulation or affect the working of any switchgear shall be prevented; (iv) all live parts shall bébeso protected or enclosed.enclosedas to prevent persons accidentally coming into contact with them and to prevent danger-dangerfrom arcs, short-circuits, fire, water, gas or oil; (v) where … gas, coal-dust, oil or other inflammable material, all parts shall be,beso protected as to prevent open sparking; and (vi) every … constructed as to be capable of opening the circuit it contrölscontrolsand dealing with any short-circuit without danger.

105. CEA 2010 · Reg 105Disconnection of supplyMinor changesCEA 2023 · Reg 107Disconnection of supply
     What changed · 90% of the old wording kept

     (2) At any time, when any cable or overhead line supplying electricity to the mine from the aforesaid switchgear-switchgearis •live,live,a person designated to operate the said switchgears shall'shallbe available within easy reach thereof: Provided that in the … with the switchgear so as to automatically disconnect the power Supplysupplyin the event of stoppage of main mechanical ventilator. (3) … shall be provided for disconnecting the supply from every part ofaof asystem. (4) If the inspectorElectrical Inspectorof minesmines,in the interest of safety considered it necessary, he may … (5) Every motor shall be controlled by switchgear which shall be-beso arranged as to disconnect the supply from the motor and from all apparatus connected,connectedthereto and such switchgear shall be so placed äsasto be easily operated by the person designated to operate themotor. (6) Whenever required by the inspector of mines the motor shall be controlled by aA suitably ratedswitchgear incorporated with protective mechanismto disconnect automatically the supply in the event of conditions of over-current, over-voltageearth fault or leakage, under voltageand single phasing. (7) Auxiliary fan shall be interlocked with … face equipment of below ground coal mine for automatic disconnection •ofofpower supply in the event of the stoppage of the auxiliary fan. (8) Every feeder of the mine shall be controlled by a suitably rated switchgear incorporated with protective mechanism in a manner so as to disconnect the supply automatically in the event of conditions of over-current, short circuit, single phasing, under voltage and earth fault or leakage as relevant.

106. CEA 2010 · Reg 106CablesMinor changesCEA 2023 · Reg 108Cables
     What changed · 94% of the old wording kept

     (i) all such cables, other than the outer conductor of … to such cables; (ii) (a) except as provided in clause (iii)no(iii) nocables other than concentric cables or single core or two core or multi core cables protected by a metallic covetingcoveringand which contain all the conductors Qfofa circuit shall be used where the voltage exceeds 125 Vor when an Inspector considers that there is risk Ofofigniting gas or coal dust or other inflammable material, and … cables may be used for any circuit provided that their rnetallicmetalliccoverings are bonded together by earth conductors so placed that the distance between any two consecutive bonds is not greater than thirty metresmetremeasured along either cable; (iv) The metallic covering of every cable shall be -be. –(a) electrically and mechanically continuous throughout; (b) earthed, if it is required by sub-regulation (3) of regulation,101required,to be earthed by a connection to the earthing system of conductivity specified therein;conductivity;(c) efficiently protected against corrosion Wherewherenecessary; (d) of a conductivity at all parts and at … as the result of any fault or leakage from live conductors.conductors;(v) cables and conductors where connected to motors, transformers, switchgear and so•that,-. •247other apparatus, shall be installed so that, -(a) they are mechanically protected by securely attaching the metallic … gas-tightness, properly constructed glands or bushes shall be provided; (vii) unarmoredunarmouredcables or conductors shall be conveyed either in metallic pipes or metal casings or suspended from efficient insulators by means of non- conductingnon-conductingmaterials which will not cut the covering and which willshallprevent contact with any timbering or metal work and if separate insulated conductors are used, they shall be installed at least 3.75 cm.cmapart and shall not be brought together except at lamps, switches and fittings.

107. CEA 2010 · Reg 107Flexible cablesMinor changesCEA 2023 · Reg 109Flexible cables
     What changed · 81% of the old wording kept

     (2) If flexible metallic covering is used either as the … such apparatus by properly constructed connectors: Provided that for machines of,voltageof voltageexceeding '650650V but $otnotexceeding 3311kV a bolted type connector shall be used and the trailing cable shÅllshallbe suitably anchored at the machine end. Provided further that where there are space limitations (or multiple board motors and equipment for transportable or portable machines; direct entry flexible cable with elastomeric sealing rings, compression gland, packing gland or sealing box which does-not alter the flame proof property may be permitted and if a cable entry can accept any sealing ring with same outside diamétét but different internal dimension, the ring shall have a minimum height of twenty .millimeter for circular cables of diameter not . greater than twenty millimeter and twenty five millimeter for circular cables of diameter greater than twenty millimeter.(4) At every point where flexible cables are joined to main :cables,cables,a circuit breaker shall be provided which iscapable of automatically disconnecting the supply from such flexible cables. (5) Every flexible cable attached to a portable or transportable maéhine Shåll*bemachine shall beexamined periodically by the person designated to operate the machine, and if such cable is used underground, it shall be examineduexamined atleast once in each shift by such person and if … of the circuit exceeds 250 V, all flexible cables attached •totoany transportable apparatus shall be provided with flexible metallic screening … with flexible metallic screening on all the power and pilot cores.cores:Provided that the provision of t>isthisregulation shall not apply to flexible cables attached to any … features of the equipment. (7) All flexible metallic screening or amouringarmouringspecified in sub-regulation (6) shall fulfill the requirement specified in clause (iv) of regulation 106 .108:Provided that in the case of separately screened flexible cables … in no case be less than that of 0.15 sq. gm.cmcopper conductor. (8) Flexible cable exceeding hundred metresmetrein length shall not be used with any portable or … when used with coal cutting machines or cutter or loader oforarmoured face conveyor for long wall operation, or with shuttle … development and de-pillaring operation shall not exceed two hundred fifty metres.inmetre inlength: Provided further that the aforesaid cable in case of … with electrically operated heavy earth moving machinery shall not exceed threesixhundred metresmetrein length and for bucked wheel excavator at 11 kV shall not exceed one thousand metresmetrein length.length: Provided also that in case of dragline or 42 cubic metre capacity shovel, flexible cable length may be raised up to 600 metre.(9) Flexible cable, when installed in a mine, shall be efficiently supported and protected from mechanical injury. (IO)Flexible(10) Flexiblecables shall not be used with apparatus other than portable or transportable apparatus.apparatus: Provided that, in case of applications like, submersible pumps, and skid mounted pumps, installed in the mines, the use of flexible cable is allowed subject to the follow of measures as to prevent the mechanical damage to the cables.(11) Where flexible cables are used they shall be detached … to prevent the energising of such cables by undesignated persons.

108. CEA 2010 · Reg 108Portable and transportable machinesExpandedCEA 2023 · Reg 110Portable and transportable machines
     What changed · 92% of the old wording kept

     Provided that all portable and transportable machines used in underground mines shall operate on remote control from the concemedconcernedswitchgear with pilot core protection.protection: Provided further that the portable and transportable machines used in open cast mines shall have the provision such that the power supply to the machine from concerned switchgear is remotely controlled from the machine: Provided also that the portable or transportable machines used in open cast mine, provision of tripping device or switch device from the operator‟s cabin shall be provided to disconnect power supply to such machine from the field switchgear.

109. CEA 2010 · Reg 109Sundry precautionsMinor changesCEA 2023 · Reg 111Sundry precautions
     What changed · 97% of the old wording kept

     (2) All apparatus other than portable and transportable apparatus shall … or explosive material shall not be stored in any room, compartrnentcompartmentor box containing apparatus, or in the vicinity of any … and shall remain so until the fault has been remedied. (S)(5)While lamps are being changed the supply shall be disconnected. (6) No lampholderlamp holdershall have metallic connection with the guard or other metal work of a portable hand lamp. (7) theThefollowing notices in Hindi and local language of the district, … at all times, shall be exhibited at the following places, namely:-namely: –(i) where electrical apparatus is in usejuse,a notice forbidding undesignated persons to operate or otherwise interfere with such apparatus; (ii) in the -interiorinterioror at the surface of the mine where a telephone … supply of electricity to the mine. (8) All apparatus, including portable_portableand transportable apparatus, shall be operated only by those persons … of bolted type is used with flexible cables, an electrical inter-lockinter- lockor other approved device shall be provided to prevent the opening of the coupling while the conductors are live.

110. CEA 2010 · Reg 110Precautions where gas existsRevisedCEA 2023 · Reg 112Precautions where gas exists
     What changed · 78% of the old wording kept

     (i) all cables shall be constructed, installed, protected, operated and maintained in such a manner as to prevent risk of open sparking;(ii) all signaling,signalling,telecommunication, remote control and insulation tester circuits shall be so … shuttle car, men or material transporting equipment of increased safety type"'e"type “e”shall be permitted at any place with suitable monitoring devices … other places these shall be in increased safety enclosure type 'e'„e‟.(2) At any place which lies-inlies inany part of a coal-seam of second and third degree gassinessgassiness, –(i) all signaling,signalling,telecommunication, remote control and insulation tester circuits shall be so … be constructed, installed, protected, operated and maintained in such a mamermanneras to prevent risk of open sparking; (iii) all apparatus, including portable and transportable apparatus used at any place within ninety .metresmetreof any working face or goaf in case of a second degree gassy mine and within two hundred seventy metresmetreof any working face or goaf in case of third degree gassy mine or at any place which lies in- byein-byeof the last ventilation connection or in any retumreturnairways shall be flame- proof;flame-proof; and(iv) all electric lamps shall be enclosed in flame-proof enclosures. (3) ImanyIn anyoil mine or oil-field, at any place within the zone-2 hazardous areas-areas, –(i) all signaling and telecommunication, remote control and insulation tester circuits shalltbe so constructed, installed, operated, protected and maintained as to be intrinsically safe; (ii) all cables shall be so consEucted, installed, operated and maintained as to prevent risk of open sparking; (iii) all apparatus including portable and transportable apparatus shall have the following 'åypes of enclosures conforming to the relevant Indian Standards, namely:- (a) flame-proof enclosure type or (b) pressurized enclosUre Wpe 'p' or sand filled apparatus type 'q' or (c) increased safety enclosure type 'e', 'n' and 'o' (d) (iv) all electric lamps shall be enclosed in increased safety enclosure type 'e'. I (4) In any oil mine or oil-field, at any place within the zone-I hazardous areas- (i) all signalingsignallingand telecommunication, remote control and insulation tester circuits shall be … all apparatus including portable and transportable apparatus shall have the following types ofenclosures conforming to the •relevant Indian Standards, namely:- (a) flame-proofrelevant standards; and (iv) all electric lamps shall be enclosed in increased safetyenclosure type 'd'„e‟. (4) In oil mineor (b) pressurized enclosure type 'p' or (c) sand filledoil-fields at any place within the zone-1 hazardous areas, – (i) all signalling and telecommunication, remote control and insulation tester circuits shall be so constructed, installed, operated, protected and maintained as to be intrinsically safe; (ii) all cables shall be so constructed, installed, operated and maintained as to prevent risk of open sparking; (iii) allapparatus type 'q'including portable and transportable apparatus shall have enclosures conforming to the relevant standards; and(iv) all electric lamps shall be enclosed in flame-proof enclosures. (5) In any oil mine at any place within zone-0 hazardous areaarea,no electrical equipment shall be used and where it is not practicable, intrinsically safe *ppgratusapparatusare only to be used withwhich shall be conforming to relevant standards and such installation of apparatus shall conform to relevant standards andthe prior approvaldetailsof installation, certified bythe Inspector.owner or agent or manager or installation manager shall be submitted to the Electrical Inspector of mines.(6) In any coal-seam of degree second and degree third gassiness or the hazardous area of oil-minethe supply shall be discontinued;discontinued,-(i) immediately, if open sparking occurs; (ii) during the period … exposing of any part liable to open sparking; (iii) the Supplysupplyshall not be reconnected until the apparatus has •beenbeenexamined by the electrical supervisor or one of his duly … inflammable gas exceeding one and one quarter in that particular .district:district:Provided that where apparatus for automatic detection of the percentage of inflammable gas or vapor are employed in.inaddition to the flame safety lamps, such apparatus shall be … mines and maintained in perfect order. (7) In any part ofaof acoal-seam of any degree of gassiness or in any hazardous area of an oil-fine,oil-fields,if the presence of inflammable gas in the general body … excess of one and one quarter per cent. (8) In an oil mineoil-fieldswhere concentration of inflammable gas exceeds twenty percent of its lowestlowerexplosive limit,limit a system should be in place to activate an audio alarm at appropriate location. On activation of such alarm immediate action shall be taken to make operations safe and to isolate the cause in order to ensure safety of men, equipment, environment. In case the lower explosive limit rises to forty percent,the supply of electricity shall be cut-off immediately from all cables and apparatus lying within thirty metresmetreof the installation and all sources of ignition shall also … Provided that such disconnection shall not apply to intrinsically safe environmentalenvironmentmonitoring scientific instruments. (9) Any such disconnection or reconnection of the supply shall be noted in the log sheet in hard copy and electronic formwhich shall be maintained in the form set out in Schedule-XlllSchedule XIand shall be reported to the inspectorElectrical Inspectorof mines. (10) The provisions of this regulation shall apply … that inflammable gas is likely to occur in such mine. ExplanationExplanation. –For the purposepurposesof this regulation;regulation, –(1) theTheexpression 'coal-seam„coal-seamof first degree gassiness', 'coal-seamgassiness‟, „coal-seamof second 'coal-seamdegree gassiness‟, „coal- seamof third degree gassiness'gassiness‟and 'flameproof degree gassiness', apparatus'„flame-proof apparatus‟shall have the meanings respectively assigned to them in the Coal Mines Regulations, 1957.2017.(2) The following areas in an oil-mineoil mineor oil-fieldoil-fieldsshall be known as hazardous areas, namely:-namely: –(i) an area of not less than ninety metresmetrearound an oil-well where a blow-out has occurred or is likely to occur, as may be designated by the Engineer-inchargeInstallation Manageror the seniormostsenior mostofficial present at the site; •(ii)(ii)an area within ninety metressixteen metreof an oil-well which is being tested byopen flow;discharge of petroleum bearing fluid from a well under production test;(iii) an area within fifteen metres of :metre of:(a) a producing well-head Q!orany point of open discharge of the crude there from or other point where emission pfofhazardous atmosphere is normally likely to arise; or (b) any … an area where abnormal pressure conditions are known to exist; or I (c) any exploration or interspaced well-head being drilled in the area where abnormal pressure conditions are known to exist;(iv) any area within four and one half meters of :three metre of:(a) any producing well-head where a closed system of production … the emission or accumulation in the area in normal circumstances ofaof ahazardous atmosphere; or (b) exploration or interspaced well-head being drilled … where the system of drilling employed includes adequate measures for •thetheprevention in normal circumstances of emission or accumulation within the area of a hazardous atmosphere; or (c) an oil-well which is being tested other than by open flow.(3) "hazardous atmosphere"“hazardous atmosphere”means an“anatmosphere containing any inflammable gases or vapours in a concentration capable of ignition.ignition”.(4) "Zone“Zone0 hazardous area"area”means "an“anarea in •whichwhichhazardous atmosphere is continuously present. "present”.(5) "Zone I“Zone 1hazardous area"area”means "an“anarea in which hazardous atmosphere is likely to•occurto occurunder normal operating conditions".conditions”.(6) "Zone“Zone2 hazardous area?'area”means ' 'an“anarea in which hazardous atmosphere is likely to occur under abnormal operating conditions".conditions”.

111. CEA 2010 · Reg 111Shot-firingRevisedCEA 2023 · Reg 113Shot-firing
     What changed · 70% of the old wording kept

     (2) Current from lighting or power circuits shall not be used for firing shots. (3) The provisions of. regulation 107construction of shot firing cablesshall apply in regardconformto the covering and protection of shot-firing cables,relevant standardsand adequate precautions shall be taken to prevent such cable touching other cables and apparatus.

112. CEA 2010 · Reg 112SignalingExpandedCEA 2023 · Reg 114Signalling
     What changed · 95% of the old wording kept

     (iii(i) adequate precautions shall be taken to prevent signal and telephone wires coming into contact with other cables and apparatus; (ii)the voltage used in any one circuit shall not exceed 30 V; (iii) contact-make;scontact-makersshall be so constructed as to prevent the accidental closing … bare conductors, where used shall be installed in suitable insulators.

113. CEA 2010 · Reg 113HaulageMinor changesCEA 2023 · Reg 115Haulage
     What changed · 94% of the old wording kept

     Haulage.-Haulage. –Haulage by electric locomotives on the overhead trolley-wire system, at … by storage battery locomotives may be used with the prior consentpermissionin writing of the Electrical Inspector5Inspector of mines,and subject to such conditions as he may impose in the interests of safety.

114. CEA 2010 · Reg 114Earthing of neutral pointsRevisedCEA 2023 · Reg 116Earthing of neutral points
     What changed · 78% of the old wording kept

     Provided that when the system concerned is required for blasting and signalingsignallingpurposes, the provisions of this regulation shall not apply.apply:Provided furtherfurther,that in case of unearthed neutral system adequate protectionsystem, itshall be providedequippedwith a suitable ground protection system approved bythe approvalElectrical Inspectorof Mines to ensure isolation of power supply tothe Inspectorfaulty section in appropriate manner.

115. CEA 2010 · Reg 115SupervisionMinor changesCEA 2023 · Reg 117Supervision
     What changed · 81% of the old wording kept

     (ii) Thé(2) Theelectrical supervisor so appointed shall be the person holding a valid Electrical Supervisor's Certificate of Competency, covering mining installationinstallationsissued by the Appropriate Government. (3) Adequate number of electricians as per guidelines issued by Directorate General of Mines Safety from time to timeunder sub-regulation (1) of regulation 29. (iii) Oneintimation in writing to the Authority andor more electriciansas directed by the ElectricalInspector {shallof mines shallbe appointed in writing by theowner, agent or manager of a mine or by the agentowneror Agent of oil-field for carrying outthe owner, of one or more wells in an Oil field for compliance with the duties specified in this regulation. (iv)duties. (4)The Electrician shall be a person holding license under sub-regulation (1) of regulation 29. (v)31. (5)For small open cast mines and below ground mines receiving … and electrician shall be appointed for more than one mine bywiththe Inspector, (2)approval of the Electrical Inspector of Mines. (6)Every person appointed to operate, supervise, examine or adjust any … is required to carry out as directed by the Engineer. (3)(7)The electrical supervisor shall be responsible for the proper performance of the following duties, by himself or by an electrician appointed under sub- regulation (l).sub-regulation (1), –(i) thorough examination of all apparatus, including the testing of … continuity, as often as may be necessary to prevent danger; and(ii) examination and testing of all new apparatus, and of all apparatus, re- erectedre-erectedin 'thethemine before it is put into service in a new position. (4)(8)In the absence of any electrical supervisor, the owner, agent or manager of the mine and oil fieldoil-fieldshall appoint in writing a substitute electrical supervisor. (5) (i)(9)The electrical supervisor or the substitute electrical supervisor appointed responsible for theunder sub-regulation (4)(8)to replace him shall be personally responsible for themaintenance at the mine or oil-field, of a log-book made up of the daily log sheets prepared in the form set out in Schedule- XIII. (ii) TheSchedule XI and theresults of all tests carried out in accordance with the provisions of sub- regulation (3)sub-regulation (7)shall be recorded in.inthe log-sheets prepared in the form set out in Schedule. XIII. Chapter X MiscellaneousSchedule XI.

116. CEA 2010 · Reg 116DeviationsRevisedCEA 2023 · Reg 136 · probableDeviations
     What changed · 65% of the old wording kept

     (2)The32. (2) TheElectrical Inspector or the inspectorElectrical Inspectorof mines may, by anorder in writing, and reasons to be recordedallow deviationsdeviationin respect of matters referred in regulations 1214to 17, 28, 35(2)(3)19, regulation 30, sub-regulations (2), (3)and (5), 36(3), 370)(5) of regulation 37, sub-regulation (3) of regulation 38, clauses (i)to (iv), 41(xii),(iv) of regulation 39, clause (xii) of regulation43, 44(2),regulation 45, sub-regulation (2) of regulation46, 52regulations 48, regulations 54to 54, 5756, regulations 59to 61, 65, 72,63, regulation 67, regulation74, 78regulation 77, regulations 81to 91, 102, 107(6),94, regulation 104, sub- regulations (6),(8) and (10) of regulation 109, regulation 116and 114 Explanation-regulations 119 to 135 on case to case basis. Explanation. –Every order allowing the deviations by the Electrical Inspector or the ElectricalInspector of Mines under sub-regulation (2) shall be placed before the Central or State Government which shall have the final decision. Schedule I Handling of electric supply lines and apparatus [See sub-regulation (3) of regulation (21)] Part-I Precautions to be observed: - (1) Hotline maintenance trained personnel only shall be designated to do work on line. (2) Work permit shall be taken from the terminal substations at each end of the line. (3) Work shall be performed with proper planning and prior understanding and clarity. (4) Favourable climatic condition for hotline operations is sunny weather. If the weather forecasts rain or thunderstorms work will not begin. (5) Organisation of work shall be discussed among the members and responsibility of each team member fixed. (6) Before going to the work site, all equipment and tools shall be inspected and checked for correct operation. (7) Auto re-closure shall be in `OFF‟ position for the line at both ends. (8) The work procedure shall be discussed with the team member at the tower location and the responsibility of each member shall be properly defined. (9) The land in close vicinity to the tower/poles shall be cleared to provide a site area for the required tools. (10) All cleaned hot sticks, strain carrier and other assemblies shall be kept on the hotline tool rack to avoid ground contact. (11) Helmet, safety shoes and safety belt shall compulsorily be used. (12) All hot sticks and ladders shall be cleaned and checked for integrity by the hot sticks tester. (13) All linemen in the hotline team shall be equipped with personal protective equipment during the work. (14) No live-line team members on the tower and conductor shall wear any metallic chain, wristwatch or ring to avoid any circulating current. (15) The team of linemen shall wear conductive socks, boots, helmets and hand gloves. The `hot-end‟ lineman shall wear complete bare hand suit. (16) Tarpaulin sheet should be laid on the work area. (17) A light vehicle shall be kept nearby during entire work period. Tools normally required for hot line maintenance operation: - The following tools conforming to the relevant standards or equivalent specifications shall be used in on-line working: (1) Wire tongs; (2) Wire tongs saddle; (3) Tie sticks; (4) Strain link sticks; (5) Roller link sticks; (6) Suspension link sticks; (7) Auxiliary arms; (8) Strain carrier; (9) Gin poles; (10) Cum-a-along clamp; (11) Safety equipment like conductor guards, X-arm guards, insulator covers, hand gloves and the like; and (12) Hot sticks. Safe Working Distance: - The following safe working distances shall be observed for hot line maintenance operations: Phase to Phase Safe Clearance kV Metre 0.61 0.71 0.91 1.02 1.07 1.52 2.13 Handling electric supply lines and apparatus for carrying out shutdown work or testing [See sub-regulation (3) of regulation (21)] Part-II Precautions to be observed: - (1) Before commencement of any shutdown work or testing in an electric supply line or apparatus, the Engineer or Supervisor in-charge of the work or testing shall identify the possible hazards, such as; electrocution, flash over, fall of person from height, fall of objects from height, failure of tools and plants, fire, and the like, thatmay disallowbe encountered while carrying out the workor revisetesting near charged area and take necessary precaution to protect the working personnel. (2) The Engineer or Supervisor in-charge of the work shall, before commencement of any work, brief the entire working group or gang regarding the hazards that may be encountered and the necessary precautions to be taken by them. (3) The Engineer or Supervisor in-charge of the work shall obtain proper permit-to-work from the concerned Operation In-charge(s) and ensure that the electric supply line or apparatus or section is isolated from all sources of energy, de-energised and earthed. (4) The Engineer or Supervisor in-charge of the work shall ensure that adequate and appropriate local earths are fixed at the zone of working, and the earthing rods remain connected to the isolated section of the electric supply line or apparatus or section till all men and materials have been moved away to safe zone and permit to work is returned on completion of the work. (5) If the local earths are required to be removed for any testing purpose, the same shall be done only when all the working personnel are in the safe zone, on the ground or on the tower, and in the presence of the Engineer or Supervisor. If the working personnel are required to go up or approach the conductor(s) subsequently for any work,such deviations. AMARJEET SINGH, secy. [ADVT 10/Exty.]as removal of test leads, tightening or adjustment, they shall be permitted to proceed only after re-fixing the local earths, as required. (6) The Engineer or Supervisor in-charge of the work shall positively confirm by suitable means that the electric supply line or apparatus or section is totally dead before giving clearance for the working personnel to approach the same. (7) The Engineer or Supervisor in-charge of the work shall, while carrying out the shutdown work or testing, ensure that working personnel are maintaining safe distance from the adjacent charged electric supply line or apparatus or section, and also, no objects, such as tools and plants, ladders, cranes, man-lifts, and the like, are moved, so as to infringe the safe distance, endangering the working personnel. (8) Mobile cranes, derricks, man lifts and wheel mounted ladders shall be effectively earthed when being moved or operated in close proximity with energised apparatus or section. (9) Portable ladders and poles shall be carried only in the horizontal position when being moved in close proximity with energised lines or equipment or area. Further Precautions to be observed: - (1) Adequate and effective supervision shall be ensured by the owner as well as the contractor for all activities while working or testing on electric supply lines and apparatus when any shutdown work or testing is done near charged electric supply line or apparatus or section. (2) Lone worker shall never be allowed to work on electric supply lines, equipment and apparatus or while testing. (3) Sufficient supervisory personnel shall be deployed for close monitoring while various type of works are under progress at the same or different locations. Supervising work shall never be delegated to the sub-contractors' personnel. (4) The deployed Supervising Personnel shall not leave the working spot when shutdown work at height or testing is in the progress, as the working personnel may not be aware of the consequences of unsafe practices. No other work, which requires them to move out of the location, shall be undertaken by Supervising personnel, when shutdown work or testing is in the progress. (5) Wherever shutdown activities are required to be carried out for more than one day on any electric supply lines, apparatus or section, earthing provided at the said work site shall be inspected by the Engineer or Supervisor everyday morning for their healthiness, fitness and proper tightening, before giving clearance for the working personnel to climb the tower or structure to resume the work. Handling high voltage direct current apparatus for carrying out shutdown work or testing [See sub-regulation (3) of regulation (21)] Part-III Precautions to be observed: - (1) The Engineer or Supervisor in-charge of the work shall obtain proper Permit-To-Work (PTW) from the concerned Operation In-charge(s) and ensure that the electric supply line or apparatus or section is isolated from all sources of energy, de-energised and earthed. (2) Before commencement of any shutdown work or testing of high voltage direct current apparatus, the Engineer or Supervisor in-charge of the work or testing shall identify the possible hazards, such as; electrocution, flash over, fall of person from height, fall of objects from height, failure of tools and plants, fire, and the like, that may be encountered while carrying out the work or testing near charged area and take necessary precaution to protect the working personnel. (3) The Engineer or Supervisor in-charge of the work shall, before commencement of any work, brief the entire working group or gang of the hazards that may be encountered and the necessary precautions to be taken by them. (4) Attach warning labels to all neighboring installation parts (to be removed after the works have been carried out). (5) The Engineer or Supervisor in-charge of the work shall allow access to the valve hall, DC Filter Area, AC Filter Area and DC hall (if any) only when the apparatus therein are completely de-energised and effectively earthed. (6) The work on AC/DC filter bank shall only begin after earthing the entire capacitor bank. (7) There shall be at least ten minute time gap between earthing the entire capacitor bank and starting the work on bank. There after unit must be short circuited. (8) The de-energised bushing shall be checked for stored charge by touching all the surfaces of both indoor and outdoor side composite insulators and all other parts of the bushing using a proper test instrument. (9) The gas pressure inside high voltage direct current through wall bushing shall be reduced to a level prescribed by the manufacturer before starting any work or handling of the bushing. Handling Gas Insulated Switchgear (GIS) apparatus for carrying out shutdown work or testing [See sub-regulation (3) of regulation (21)] Part-IV Precautions to be observed: - (1) The Engineer or Supervisor in-charge of the work shall obtain proper Permit-To-Work from the concerned Operation In-charge(s) and ensure that the electric supply line or apparatus or section is isolated from all sources of energy, de-energised and earthed. (2) Operation, maintenance and repair must be carried out by trained and certified personnel only. (3) Before commencement of any shutdown work or testing of gas insulated switchgear apparatus, the Engineer or Supervisor in-charge of the work or testing shall identify the possible hazards, such as; electrocution, flash over, fall of person from height, fall of objects from height, failure of Tools and Plants, fire, and the like, that may be encountered while carrying out the work or testing near charged area and take necessary precaution to protect the working personnel. (4) The Engineer or Supervisor in-charge of the work shall, before commencement of any work, brief the entire working group or gang of the hazards that may be encountered and the necessary precautions to be taken by them. (5) Wear hearing protection during operation. (6) Take care while touching the enclosure at any time as enclosures may heat up to the temperature of 70°C. (7) Observe the procedures for storage, transportation, and the use of filling equipment. (8) Wear the personal protective equipment: respirator mask (self-contained breathing equipment if necessary), protective overall, protective gloves, safety shoes, safety glasses. (9) Attach warning labels to all neighboring installation parts (to be removed after the works have been carried out). (10) Provide proper electrical clearance as required by interlocking rules. Mark e.g. main circuits and control circuits with appropriate tags. (11) Block off neighboring live parts with screens, insulating mats or spacer grids in order to prevent unintended contacts. (12) While working on any compartment in gas insulated switchgear, the immediate adjacent compartment(s) must be also depressurised for safety of the working person. (13) SF6 gas becomes contaminated and contains poisonous substances after events such as arc faults. Hence, handling of SF6 in such cases must be done using proper PPEs and by a trained personnel, preferably from the original equipment manufacturer. (14) The switchgear installation shall not be operated if the density of SF6 gas indicated at the density monitors is not in the operating range. (15) Do not remove any protective covers if an assembly is energized. (16) The Engineer or Supervisor in-charge of the work shall ensure that adequate and appropriate local earths are fixed at the zone of working, and the earthing rods remain connected to the isolated section of the electric supply line or apparatus or section till all men and materials have been moved away to safe zone and Permit-To-Work is returned on completion of the work. Schedule II Forms of Inspection Report [See regulation (32) and (45)]

Method: each provision is paired with the one in the new text whose heading and text are closest, one to one where possible, and never across different named officials; "probable" marks a weaker pair. Where there is none, the related OSH&WC instruments are searched. "What changed" compares the words of the two texts: struck-through words are in the old text only, highlighted words in the new one only; long unchanged stretches are shortened. Text extracted from scanned or bilingual PDFs can carry recognition errors.