DGMS Compiled Circulars 2016 (Combined)

Department: Not stated
Dated: 2016
Collection: Individual circulars & notifications
Topic: DGMS circulars

Individual document, 82 pages. See it in the regulations library.

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of India Ministry of Labour & Employment Directorate General of Mines Safely No, DGMS Circular (Tech.) No. O To [Dhanbad, dated , 2016 All Owners/ Agents/ Managers of Coal and Metalliferous Mines, Superintendents of mines rescue stations and Incharges of mines rescue rooms* Subject: Permission under Rule 37 and Rule 11(4) of Mines Rescue Rules, 1985 to maintain breathing apparatus of different type and make in rescue stations and rescue rooms, Rule 11 (4) of the Mines Rescue Rules, 1985 stipulates maintaining of self contained breathing apparatus in the rescue stations. and the ones in rescue rooms to 'be of same type and make.

Due to entry of new manufacturers and importers of breathing apparatus in the domestic market and continuous technical advancement of the equipment, it is observed that compliance of the above rule at times becomes impracticable. Considering the requests from users for exemptiön from compliance of the above rule, specific permissions under Rule 37 of the aforesaid rules are being granted to various rescue stations.

As the practice of maintaining breathing apparatus of different type and make in rescue stations and rescue rooms appears•to continue by seeking permission from this Directorate, it is decided to issue this general order permitting maintenance of breathing apparatus of different type and make in rescue stations and rescue rooms subject to strict compliance of the following conditions:

(i) In case of rescue stations and rescue rooms maintaining more than one type and/or make of breathing apparatus, the rescue superintendent shall ensure that:

(a) all the instructors, rescue brigade members and rescue room attendants are fully acquainted with the use, maintenance and testing of all types and makes of breathing apparatus;

(b) all the rescue trained persons are imparted of refresher practices with éåch type or make of breathing apparatus as prescribed in Schedule VII of the aforesaid rules; and

(c) the type/make of breathing apparatus used in each practice for all the rescue trained persons aré mentioned in the training records.

(ii) This exemption is being accorded with0(ft prejudice to any other statute which may be or may become applicable at any time.

Ditector Gener of Mines Safety Government of India Ministry of Labour & Employment Directorate General of Mines Safety No. DGNS Circular' (Tech. ) No. 02 /Dhanbadf dated eTQJY)/C2-O ) a All Owners/ Agents/ Managers of belowground coal and metal rnines and Superintendents of rescue stations.

Subject: Periodic testing of breathing apparatus, reviving apparatus etc.

maintained at rescue stations and rescue rooms.

Rescue equipment like breathing apparatus, reviving apparatus etc. are statutorily required to be maintained •in the rescue stations and the rescue rooms. These equipment need to undergo periodic testing at intervals of one month or at shorter intervals as may be mentioned by the manufacturers in accordance with Schedule IV of the Mines Rescue Rules, 1985 or its revised versions. Records of such testing(s) are to be maintained in the rescue stations and rescue rooms. As required under Rule 12 (2) (a) of the above rules; the Superintendent shall ensure that such equipment and apparatus are maintained in perfect working order. Also Rule 13 of the above rules requires the Instructors to make inspections, tests and adjustments of the equipment' and apparatus under the direction of the Superintendent and maintain records thereof.

In order to bring uniformity in the system of maintaining records of periodic testing of breathing apparatus, a format has been developed •which is given at Annexure-I. In the enclosed format, every entry of test results of every apparatus shall end with the remarks "fit for use" if found so. Every such record shall be signed by the person who has performed the test and countersigned by the Instructor, Rescue Room Incharge and Superintendent of the rescue station.

In addition to this, in every rescue station and rescue room, there shall be maintained a record signed by the Superintendent in the proforma given ät Annexure-II certifying that the particular breathing apparatus is in maintained in perfect working order. Such records shall be updated at least one in every quarter based on the results of the latest tests or at interval as may be prescribed.

Director General Of Mines Safety o c O O o -o -1 o o o O o 0)

o —l o CD t;

—h o > O O Annexurewll Certificate of Fitness to be issued on or before 7th day of every month This is to cettjfy the following equipment in the mines rescue stations/ rescue rooms and' rescue rooms (whichever is applicable) as per Schedule I, II or •III respectively of the Mines Rescue Rules, 1985 are maintained in perfect working order as per the tests conducted •in accordance•with criteria and procedure prescribed by the manufacturers on the dates given against each of them:

No.

Date:

Name & Identification No. of the e ui ment Date of Testing Signature of Superintendent Mines Rescue Station, M/s Government of India Ministry of Labour & Employment Directorate General of Mines Safety No. DGMS (Tech) Circular (MAMID)/ D?)

To The Owner/Agent & Mangers All Coal, Metalliferous and Oil Mines.

Dhanbad, dated :

14 / 03 /2016 Subject: Safety features to be incorporated and maintained in crawler/tyre mounted machineries deployed in mines.

A serious accident took place in an open-cast mine, jn which a dozer moved forward while the dozer operator, standing on track pad, started the dozer directly by short- circuiting the self-starter, keeping the machine in gear, The dozer operator fell between the dozer blade and the track pad and was run over by the track-pad inflicting serious injuries to both his legs and right hand leading to amputation of both the legs below knee.

After the accident, a study was undertaken in which all 278 numbers of crawler and tyre mounted machineries (hereinafter called machineries) deployed in the mine were examined.

The investigation revealed the following .

(a) Neutral Switch electrical interlock with gear, which prevents starting of machineries if in geared position, was either not found in order or not provided in 90% of the machineries,

(b) Hydraulic safety valve interlock, which prevents movement of the machineries even if its engine starts in geared position; the machineries will move only when the gear is brought to neutral position and then gear lever is shifted to engaged position. This safety feature was either not found in order or not provided in 35% of the machineries.

(c) Self-starter protection guard, which prevents short-circuiting the terminals of self- starter motor, was either not found in order or missing in 89% of machineries.

During the period from 2012 to 2015, about 45% fatal accidents and 22% serious accidents took place due to machineries in coal mines. The same figures in non-coal mines were about 30% and 38% respectively.

The above findings of the investigation/examination highlight the need to take appropriate action in ensuring proper functioning safety devices provided in machineries for the greater benefit of persons emp oyed jn mines and machineries deployed therein.

There is no doubt that if the machineries are maintained in safe working order, required safety devices are provided & maintained and work persons (operators/ helpers/mechanics/electricians/supervisors/engineers) are adequately trained, it would be possible to eliminate recurrence such accidents in future.

I, therefore, request you to take necessary action to maintain all required safety features in crawler/lyre mounted machineries deployed in the mines, impart adequate training to all related work persons and improve safe work culture.

Yours faithfully, (Rah Director General of Mines Safety eæb OGMS (Tech,)

y-at Mir:istiY of Labour & Employment Directorate Genera) of Mines Safely /Dhanbadf dateci Z, A" Manages'S of Coal ant* Meta/åäferous Mines/ (duperintencients mines rescue staff0å15, of rescue cooms omnaufacü'twe,i'$ of breathing/ appætratuse Subject: C,biiincåews to bg breathing used mines Oxygen or compressed ail' cylinders are integral parts of all breathing apparatus(ee). Fot- use in Indian mines closed circuit and open circuit breathing apparatuses are accorded approval by Directorate Generat of Mines Safety subject to conformation of the apparatus as per standards specified •in IS 10245-1 and J.S 10245-2 respectively of the Bureau of Indian Standards, among other conditions. is specified in the above standards that cylinders and valves fitted with the breathing apparatLts Shail comply with the provisions of the Gas Cylinder Rules, 198]. (presently Gas Cylinder 2004)

Tn the Approval Policy, is stipufated that no change shall be made to the equipment which hacl been tested for grant of approval unless specifically approved and this is also appticab\e in case of cylinders used in breathing apparatus(es). In the recent years, different types of gas cylinders are available which are compatible with the breathing apparatus(es). To facilitate use of cylinder other than the ones fitted with the apparatus tested at prescribed test house for obtaining DGMS approval the following conditions have been laid clown which shall atsc; be applicable to the cylinder currently in use:

(iii)

(v)

All cyiinclers used with the breathing apparatus shali be approved by the Chief Controller of Explosives, PESO under the Gas Cylinders Rules, 2004% The valves fitted with the cylinders shall comply with the requirements of IS 7302 of the Bureau of Indian Standarcls as amendecl from time to time.

The colour of the cylinders shall be as specified in IS 3933 of the Bureau of Indian Standards as amended from time to time, A certificate regarding the compatibility of the cylinder for use with the breathing apparatus shall be issued by the manufacturer to the user(s).

The stipulations made in the DGMS Circular No. 8 •of 1974 regarding the material of the cytinclerr shall be applicable.

Director General of Mines Safety Government of India *TéTZr Ministry of Labour & Employment Directorate General of Mines Safety / Dhanbad - 826 001 No. DGMS (Tech.) (S&T) Circular no.

Dhanbad/ Dated 2th April 2016 All Owners/ Agents/ Managers of coal and metalliferrous mines Tntegrated approach for development of Safety Management Plan for coal and metalliferous mines The ninth and tenth Conference on Safety in mines recommended adopting Risk Assessment as a tool for development of appropriate health & safety management systems in Indian mines. The eleventh Conference further recommended that the managements of every mining company should adopt the process of safety management system and commit itself for proper formulation and implementation of the same in totality.

Drawing inputs from inferences drawn from several workshops on "Risk Assessment" in Indian mines conducted by DGMS, a document on "Safety Management System — A guideline for implementation" was prepared and circulated as DGMS(Tech)(S&T) Circular No. 13 of 2002. Another guideline in this regard titled "Safety Management System- Provision for auditing and review" was issued by DGMS as DGMS (Tech)(S&T) Circular No.

02 of 2011, Successful implementation of Safely Management System in Mines would warrant sorting out' perception issues among all stakeholders, ancl the success may 'depend on among others, adoption of an integrated approach.

The matter has been discussed with various stakeholders of coal and metalliferous industry in the recent past. During interaction some of the implementation issues inhibiting its outreach were flagged. They are: lack of penetration of the concept at grass root level; confusion about implementation strategy, and; lack of involvemerit of frontline mining personnel in developing the document.

In view of the above, an integrated implementation strategy, as a sequel to the DGMS (Tech)(S&T) Circular No. 13 of 2002 (without appendixes), has been developed and enclosed as Annexure for compliance.

You are requested to•take necessary steps for development of Safety Management System in the mines under your control with the help of above guidelines. The Mine Manager shall submit a copy of the Safety Management Plan to the Regional Inspector of Mines for acceptance.

(Rahuv uha)nz Director General of Mines Safety End — Annexure (1-10) & samp/e worksheet (Sl-S9)

Annexure DGMS Tech, S&T Circular Noa b dated 9-

1. Hazard identification & Risk Management 1.1 Formation of team: Mine Manager/Operations-in-charge as team leader, members may be suitably chosen from the following for carrying out hazard identification and risk management in mines.

Safety officer Engineer (Mines)

Workmen's Inspector(s)

In-charge, mine production In-charge, mechanical section In-charge, electrical section In-charge, civil wing Tn-charge, occupational health & hygiene In-charge, mine surveying Supervisor's and/or workmen selected from activities mentioned at (d), (e), (f), (g), (h) and (i), including machine operators, fitters and electricians Rapportier(s)

For advice I and technical guidance regulators, eminent mining scientists, experts from academic & research institutions and representatives from manufacturers may be invited to participate in risk assessment sessions.

Team may co-opt members if considered necessary.

1.2 Tools of Risk Management: (a) Following documents may be arranged for consideration of team.

Minutes of safely committee meeting Workmen's Inspectors report Contraventions pointed out by regulators and action taken report Safety officer's inspection report Report (s) submitted by Internal Safety Organization/ if any Previous risk assessment document, if any Report (s) on accidents and near misses A study of the above reports may help in identifying key safety and health issues in different areas of mining operations.

(b) A computer systern which supports Microsoft Office 2007 or its latest version and printer.

1.3 Getting Started — Hazard Identification Inquest into mining accidents and incidents often reveal systems failure. The system comprises of man, machines, and materials that are designated to perform a spelled task in a specified environment. All constituent are interconnected to perform the task. A failure of any constituent can cause a failure of the system. A risk assessment exercise needs to take into account all the constituents and any associated hazards and human factors.

Every mine, operational, discontinued ot abandoned has a threat perception based on systems analysis through an established procedure or by assessment of safety professionals. A control system generic or otherwise may be in place to maintain the workplace risl< within acceptable level.

Looking out for hazards is to identify the (i) probable location where there is a likelihood of release of unwanted energy or object(s) (ii) medium through which the unwanted energy or object(s) may travel and, (iii) the miner may be in danger of being contacted by the unwanted energy or object(s).

While identifying hazards in a classified sector, number of workers who may be exposed need to be taken in account to ascertain possible degree of consequences in the event of a mishap in following manner:

Table 1 Percentage of work Impact assessment Serial No 1.

persons employed > 40 20-40 ,5-10 €5 of exposure Maximum High Medium Low Very Low An example of identification of hazards and categorization thereof have been detailed in Table 2 Table 2: Initial Hazard Identification (28 Hazards Initially Identified)

Sl.

No, Existin Description of Hazard Mine Fire- otentiai for ex Roof fall Strata control Mine Gases Waterlo ed workin s Surve -incorrect mine Ian Percentage Cons.

of workers ex osed losion prob.

Exposure 1m ro ersurve instruments Lack of skilled persons/using unskilled ersons in specified •obs Inundation from surface source Surface blastin and vibrations Windin Shaft Boilers Blastin S ontaneous Combustion Unauthorized ent to mine workin s Lack of illumination Haula e & trans ort failure Side fall Moving machinery (including illegal man-ridin on SDL etc.

Electrici Drivages not to Ian Carbon monoxide oisonin Material handlin Res irable dust Noise Inade uate Ventilation Sli er roadwa 1m ro er travelin roadwa total Table 3: Hazard Identification HAZARDS IDENTIFIED AS HIGH RISK (Risk > 200)

Requiring immediate attention Sl.

No.

Description of Hazard Existing Mine Fire-potential for ex losion Roof fall Strata control Mine Gases Waterlo ed workin s Surve - incorrect mine Ian 1m ro er surve instruments Lack of skilled persons/using unskilled ersons in s ecified •obs Inundation from surface source Percentage Cons.

of workers ex osed prob.

Exposure Total Hazard Identification (Continued)

OTHER HAZARDS IDENTIFIED AS RISKS REQUIRING MANAGEMENT ACTION (Risk <200 and >20)

Description of Hazard Surface blasting and vibrations Windin Shaft Boilers Blastin S ontaneous Combustion Unauthouised ent to mine workin s Lack of illumination Haula e & trans ort failure side fall Moving machinery (including illegal man- ridin on SDL etc.

Electrici Driva es not to Ian Carbon monoxide ojsonin Percentage Cons.

of workers ex osed prob.

Exposure Total Hazard lclentification (Continued)

OTHER HAZARDS IDENTIFIED AS LOW RISK BUT TO BE REVIEWED Exposure No.

Description of Hazard Material handlin Res irable dust Noise Inade uate Ventilation sli é roadwa 1m ro er travellin roadwa (Risk <20)

prob.

Percentage Cons.

of workers ex osed Table 4: Summarized Hazard Identification 11 Major Hazard Categories Identified (01)

(02)

(03)

(04)

(05)

(06)

(07)

(08)

(09)

(10)

(11)

Mine Fires Inundation Machinery Strata Control Mine Gases Electricity Blasting & Use of Explosives haulage & Transportation Spontaneous Combustion Occupational Health Emergency Response Total No.

No.

Major Hazard Mines Fires Inundation Machinery Table 5: Categorization of Identified Risks Sub Category of Hazard

• Existing Mine Fire :Lack of sl<illed persons/using unskilled persons . Surface blasting and vibration's :Unauthorized entry to mine workings :Coal dust - explosion :lnadequate Ventilation :Waterlogged workings :Sutvey- incorrect mine plan .'lniproper survey instruments :Lack of skilled persons/using unskilled persons :lnundationfrom surface source . Surface blasting•and vibrations :Drivages not to plan :Lack of skilled persons/using unskilled persons :Winding (Shaft)

:Boilers :Lack of illumination :Moving machinery (including illegal man-riding on SDL etc.)

Categorization of Identified Risks (continued)

Major hazard Strata Control Mine Gases Electricity Sub Category of Hazard :Roof fall (Strata control)

: Side fall :Lack of skilled persons/using unskilled persons :lmproper survey instrurnents :Surface blasting and vibrations :Lack of illumination :Mine Gases :Fire damp :Coal dust - explosion :lnadequate Ventila,tion : Electricity :Lack of skilled persons/using unskilled persons Categorization of Identified Risksi (continued)

No.

Major Hazard Blasting & Use of Explosives Haulage & Transportation Spontaneous Combustion Occupational Health Emergency Response Sub Category of Hazard :Blasting :Lack of skilled persons/using unskilled :Coal dust - explosion :Drivages not to plan :Lack of illumination :HauIage & transport failure :Moving machinery .(including illegal man- riding on SDL etc.)

:Material handling :Spontaneous Combustion :Respirable dust : Noise :Lack of illumination :lmproper travelling roadway 1.4 Development of worksheet for, Risl< assessment, control and audit The template of worksheet for risk assessment, control and audit exercise may include, among others, document number, title, name of the mine, company, date conducted/ location, etc. followed by the list of assessment team members and facilitators, as below:

RA WORKSHEET- Risk Assessment coal/metal mines UG-MVWRA/ Mine Ventilation/inundation/...

in underground Name of the Mine: AAA Name of the Company: BBB Date Conducted: CCC Location: DDD Assessment Team Ma include)

Name EEE FFF GGG JJJ KKK LLL MMM NNN ooo ppp QQ RRR sss UUCJ Add Facilitators Name www zzz EEFF GGHI-I IIJJ KKLL Add Desi nation Mines Mana er MM Collie En ineer CE Safe Officer SO Ventilation Officer VO Assistant Mana er AM Mechanical En ineer/Asst. Mechanical En ineer ME/AME Electrical Engineer/Asst. Electrical En ineer EE/AEE Medical Officer MO Civil En ineer CER Surve Officer/Surve or SUO/SUR Workman Ins ector Minin WIM Workman Ins ector Mechanical WIME Workman Inspector Electrical) WIE)

Overman/ Minin Sirdar OM/MS Foreman Mechanical/Electrical)

Electrical /Mechanical Su ervisor ES/MS Radiologist Workmen/ Safe Committee Members Add Ma include Desi nation De uty Director/Director, DGMS Chief/ Deputy Chief/Member, ISO Area Safety Officer Area Medical Officer Area En ineer Electrical Area En ineer Mechanical Scientist, Research Institutions Sub •ect Expert, Edutational Institutions Add 1.5 Risk Assessment A sample of risk assessment exercise conducted in respect of mine inundation has been furnished as Table 6.

1.6 Risk control While developing Risk Control plans for identified hazards, due weight age may be ascribed to the number of workers present at the place of work to assign priority.

A sample Risk Control plan pertaining to mine inundation assigning the responsibility and time limits for completing the designated action (s) has been furnished at Table 7.

1.7 Auditing Auditing of Risk management scheme is to be conducted by trained auditors.

Incomplete activities which have been assigned Immediate Action (IA) tag by auclitors depending upon hazard perception, severity and exposure, need to be reported to agent(s) and owner(s) by the manager. A system may be devised to send daily/weekly/fortnightly/monthly progress report as the case may be, by the manager to agent(s) and owner(s), till the activities with IA tag are satisfactorily completed, A sample audit sheet indicating gaps in achieving risk control within specified time frame in respect of mine inundation has been furnished at Table 8.

1.8 Emergency exercise International best practices suggest that the exercise to be systematic in nature and consistent with the concept of mutual assistance from other mines. It should be able to make direct reference to the risks at the mine. The purview of the exercise should be inclusive of external agencies such as DGMS, police, media and senior company officials. The conduct of exercise is subject to risk assessment principles to ensure the exercises do not introduce new safety risks to persons at a mine and have an audit and evaluation process, 1.8 Concluding Remarks The developed Safety Management Plan in respect of a coal or metal mine may contain, among others the following:

Mine Safety & Health Policy with a p an for its implementation;

Organizational structure and resources for implementation of (a) mine safety & health policy and (b) safety management plan Risk Assessment data sheets;

Hazard Control Plans for identified hazards;

A list of Hazard Control Plans with yellow Flag (YF);

Audit sheets for Hazard identification and Control Plans;

A list of I-lazard Control Plans with Immediate Action Flag (IAF);

A list of developed Code of Practices (COP);

A list of developed schedules, schemes and strategies A list of developed Standard Operating Procedures (SOP);

A list of developed processes, protocols and systems Emergency Management Plan including trigger action response plans (TARP)

and emergency initiation protocol (EIP);

Emergency exercise logs and recommendations;

Maintenance schedules of electrical equipments used in the mine;

Maintenance schedules of mechanical equipments used in the mine;

Safety manuals of electrical & mechanical equipments used in the mine; and A list of trainings/refresher trainings conducted.

The list of Hazard Control Plans with yellow and Immediate Action Flag need to be accorded due priority by Agent & Owner. A schedule for implementing the recommendations made during the conduct of emergency exercise neecl to be drawn by the mine manager in consultation with agent/owner in a time bound manner. A copy of correspondences made with concerned authorities and agencies regarding mitigation of identified hazards in the mine may be kept for records.

(Rahul uha)

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o c o o Jilin / Govt. of India Ministry of Labour and Employment Directorate General of Mines Safety DGMS (Tech.) (S&T) Circular No. ru6 of 2016 Dhanbad, To All Owners, Agents and Managers of Coal Mines Subject: Standards of illumination in opencast coal mines Sir, Abbreviations DGMS: Directorate General of Mines Safety; S&T Division:

Science & Technology Division; DDG(HQ): Deputy Director General (Head Quarter); CIL: Coal India Limited; SCCL: Singareni Collieries Company Limited; CIMFR: Central Institute of Mining and Fuel Research; ISM: Indian School of Mines; lux: SI unit of illuminance and luminous emittance, measuring number of lumens per square metre; H: Horizontal illuminance, the measure of illuminance taken through a light meter's sensor at a horizontal position on a horizontal surface ; V: Vertical illuminance, the measure of illuminance taken through a light meter's sensor at a vertical osition on a vertical sur ace.

Proper illumination is desirable and can be an effective aid to tackle hazards in coal mines. Existing illumination standards are several decades old, necessitating a comprehensive review in the backdrop of recent developments in mine technology and lighting.

For appraisal of present status of illumination in coal and metalliferous mines, and formulation of draft revised standards thereof, a project was undertaken by Science & Technology Division of DGMS. As a part of the project, illumination surveys were carried out in coal and metalliferous mines. Based on the inputs derived from illumination surveys and also from international best practices, a draft illumination standard for opencast coal mines was prepared.

A meeting was convened on 17.02.2016 at DGMS, Dhanbad, under the chairmanship of Shri P. Ranganatheeswar, DDG(HQ), with a view to review and finalize the standard of lighting to be provided in the specified areas or places of opencast coal mines, earlier stipulated and specified vide Govt.

Notification No. GSR-804, dated 18.06.1975, published in the Gazette of India, dated 28.06.1975, Part-III Section 3(i), also reproduced by the DGMS Circular (Legis.) No. 1/ 1976 under Regulation 154(2) of the Coal Mines 1 of 5 Regulations, 1957, in which twenty-four officials from different stake holders, like DGMS, CIL, SCCL, ISM and CIMFR participated.

After detail discussions and deliberations, the minimum illumination levels to be provided at different places of working in opencast coal mines along with general guidelines for mine lighting were suggested and finalized by the participating members, which are detailed below:

STANDARDS OF ILLUMINATION IN OPENCAST COAL MINES Serial No.

Places to be illuminated Work place of Heavy Machinery Drilling operations (i)Area where drilling rig works (ii)Area where drill holes exists Places where manual work is done Places where loading, unloading or transfer, loading of dumpers, trucks or train is carried on (including 0B Dump and Coal Stack Yard Operators cabins of machines or mechanisms Haul roads for Trucks and Dum ers Rail haulage track in the pit Roadways and foot paths from bench to bench Permanent paths for use of ersons em Io ed etc.

In-pit Crusher/ Feeder Breaker Hand Picking Points Conveyers

(a) Transfer points and drive tail end area

(b) Along conveyor Minimum standards of illumination to be rovided in lux)

15 H, 25 v (so as to cover depth and height through which the machine o erates.

25 v (so as to illuminate full hei ht of the drillin ri 15 H 15 H, 25 V 15 H, 15 V 50 H at all laces of operation IOH IOH IOH IOH 40 H 50 H 40 H 20 H 2 of 5 Coal Handing Plant

(a) Places of crushing, screening, segregation and loading unloadin

(b) Operation points

Pumping Station

(i) Electrical Sub-station

(ii) Other places of operation of electrical ap aratus/e ui ment First Aid station Rest shelter Workshop Parking Yard General working areas as determined by the Manager in writin 40 H 50 H 20 H 40 H 100 H, 50 V 20 H, 20 V 50 H 30 H 100 H, 50 V 50 H IOH at the level of surface to be illuminated Guidelines for mine illumination 1.

The mine lighting should be designed and installed with proper lamps and fixtures in regard to height, orientation, spacing and reflectors or other accessories, so as to secure a uniform distribution of light on the work area for visual comfort and avoiding objectionable shadows, sharp contrasts of intensity, glare, light clutter (excessive groupings of light) and light pollution to prevent strain on the eyes of the workmen, work fatigue and medically defined stress.

Portable lighting shall be provided at places, where the permanent/ fixed lighting is not possible.

At strategic locations like electric substation, and any other places as determined by the Manager, emergency lighting arrangement by separate source shall also be provided.

In case of haul roads, orientation of light fittings should be kept so adjusted as to have emittance of light across the road and not along the road. Where the width of haul roads is more, the lighting arrangements shall be provided either by rows of lights erected on both sides of the road or by a centrally erected row, so as to maintain illumination as per standard.

Lighting arrangement at working places of heavy machineries, dump/ stack yard and other loading/ unloading areas shall be such that the formation of dark zone is avoided.

Considering high mobility of hydraulic excavators, the faces/ benches worked by such machineries shall, as far as practicable, be illuminated by light source of matching mobility so as to avoid chances of lag for want of shifting.

Dump/ stack yards shall be illuminated by suitable numbers of high mast towers/ light source. It shall also be ensured that adequate light reaches up to edges of the active dump.

For better implementation of these standards, the manager of every mine shall formulate a detailed written "Illumination Scheme", which may include an "Illumination Plan" and duties and responsibilities of key officials for the purpose.

In respect of any particular place or operation in a mine, where due to existence of some special conditions the manager is of the opinion that compliance as per stipulated minimum standard is not reasonably practicable, he may provide illumination in variance thereof, if he has indicated the modified minimum illuminatiorf to be provided for such place or operation, as the case may be, in the "Illumination Scheme" with proper justification for the same and submitted a copy thereof to the Regional Inspector.

10. Illumination Survey:

(i) The manager of every mine shall arrange to conduct Lighting Survey once at least in every month to ensure adequacy of illumination.

(ii) While making such survey, the measurement of lighting shall also be taken at the point farthest from the source of light lying within the limit of the work place or in haul road or travelling or haulage roadway, as the case may be.

(iii) A record of every such survey shall be maintained and signed by the competent person making the survey and countersigned and dated by the manager.

1 1 . Illumination Plan:

(i) The manager of every mine shall ensure that an Illumination Plan, indicating the location of places, type of illuminating devices, fixtures, lamps, supports, any other devices for illumination and showing required as well as measured value of light at various places to be illuminated, is maintained. Where any area of the mine is not in use or not needed to be lighted, the same shall be clearly marked and demarcated on the plan with reasons to be recorded. The plan shall be kept signed and dated by the surveyor and the official authorized for maintaining the lighting standard and countersigned and dated by the manager.

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(ii) The Illumination Plan shall be brought up to date in every month based on the monthly illumination survey and considering the current status of workings.

This circular supersedes the' DGMS Circular (Legis.) No. 1/1976. Action is also being taken to forward a copy of this revised standard for notification in the Gazette of India.

All Owners, Agents and Managers of coal mines are advised to ensure strict compliance with this circular.

(Rahul Guha)

Director General of Mines Safety / Govt. of India Ministry of Labour and Employment Directorate General of Mines Safety DGMS(Tech.) (S&T) Circular No. of 2016 Dhanbad, 4016 To All Owners, Agents and Managers of Coal Mines Subject:

Standards of illumination in underground coal mines Sir, Abbreviations - DGMS: Directorate General of Mines Safety; S&T Division:

A meeting was convened on 17.02.2016 at DGMS, Dhanbad, under the chairmanship of Shri P. Ranganatheeswar, DDG(HQ), with a view to review and finalize the existing guidelines issued on standards of illumination under regulation Reg. 151 of Coal Mines Regulations, 1957 vide DGMS circular No. 14/ 1964 for underground coal mines, in which twenty-four officials from different stakeholders, like DGMS, CIL, SCCL, ISM and CIMFR p articipated.

1 of 4 After detail discussions and deliberations, the minimum illumination levels to be provided at different places of working in underground coal mines along with general guidelines for mine lighting were' suggested and finalized by the participating members, which are detailed below:

STANDARDS OF ILLUMINATION IN UNDERGROUND MINES S.N Important places to be illuminated At every shaft landing and shaft bottom or siding which is in regular use Travelling roadway and Haulage road way, including Man-riding roadwa and eve incline in use Haulage Roadway (junctions) at which tubs are coupled or uncou led At every places of loading and unloadin At every room and place containing any engine, motor or other a aratus in re lar use Any working face and Goaf Edges of de illarin anels Ladder way/ Man way Pumping Station Area under filling / stowing Conve ors

(i) Transfer points and drive tail end area ii Alon conve or Hand picking points Loco charging station Underground Garage/ workshop

(i) Electrical substation

(ii) Other places of operation of electrical a aratus e ui ment Minimum level of illumination to be provided (in lux)

50 H 10 H, 10 v 30 H 30 H, 20 V 30 H 20 H, 30 V 15 H 30 H IO H 40 H 20H 50 H 50 H 50 H 100 H, 50 V 20 H, 20 v 2 of4 At evelY First —aid station Miners station/ Rest shelter Coal Handin Plant Places of crushing, screening, segregation and loadin unloadin ii O eration oints iii Other laces in eneral workshop at surface General working areas as determined by the Manager in writin 50 H 25 H 40 H 50 H 20 H 100 H, 50 v IOH at the level of surface to be illuminated Guidelines for mine illumination 1.

Portable lighting shall be provided at places, where the permanent/ fixed lighting is not possible.

At strategic locations like electric substation, winding engine room and any other places as determined by the Manager, emergency lighting arrangement by separate source shall also be provided.

4. For better implementation of these standards, the manager of every mine shall formulate a detailed written "Illumination Scheme", which may include an "Illumination Plan" and duties and responsibilities of Key officials for the purpose.

5. In respect of any particular place or operation in a mine, where due to existence of some special conditions the manager is of the opinion that compliance as per stipulated minimum standard is not reasonably practicable, he may provide illumination in variance thereof, if he has indicated the modified minimum illumination to be provided for such place or operation, as the case may be, in the "Illumination Scheme" with proper justification for the same and submitted a copy thereof to the Regional Inspector.

6. Illumination Survey:

(i) The manager of every mine shall arrange to conduct Lighting Survey once at least in every month to •ensure adequacy of illumination.

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(ii) While making such survey, the measurement of lighting shall also be taken at the point farthest from the source of light lying within the limit of the roadways and work place, as the case may be.

(iii) A record of every such survey shall be maintained and signed by the competent person making the survey and countersigned and dated by the manager.

7. Illumination Plan:

(ii) The Illumination Plan shall be brought up to date in every month based on the monthly illumination survey and considering the current status of workings.

In addition to the above, the roof and sides of the aforesaid places belowground shall also be kept effectively whitewashed as required under Reg. 150 of Coal Mines Regulations, 1957 or such other corresponding regulations which may come into force in future, which would further help in significantly improving the underground visual environment and level of illumination.

This circular supersedes the DGMS circular No. 14/1964.

All Owners, Agents and Managers of coal mines are advised to ensure compliance with this circular.

(Rahul Guhåj Director General of Mines Safety 4 of 4 / Govt. of India Ministry of Labour and Employment Directorate General of Mines Safety DGMS (Tech.) (S&T) Circular No. (18 of 2016 To All Owners, Agents and Managers of Coal Mines Dhanbad, dated 03 2016 Subject: Emergency Management Plan for Indian coal and metal mines Sir, Abbreviations - DGMS: Directorate General of Mines Safety; CIL: Coal India Limited; SCCL: Singareni Collieries Company Limited; CIMFR: Central Institute of Mining and Fuel Research; ISM: Indian School of Mines; MOIL: Manganese Ore India Limited; UCIL: Uranium Corporation of India Limited; I-ICL: Hindustan Copper Limited; HZL: Hindustan Zinc Limited; HINDALCO: Hindalco Industries Limited;

SAIL: Steel Authority of India Limited.

Regulation 199A of the Coal Mines Regulations' 1957 & Regulation 190A of the Metalliferous Mines Regulations' 1961 stipulates preparation of an emergency plan for every mine having workings belowground for use in time of emergency. The emergency plan shall incorporate provision for mock rehearsals at regular intervals.

Recently, a DGMS (Tech.) (S&T) Circular no.05 dated 2nd April 2016 was issued, detailing an integrated approach for development of Safety Management Plan for coal and metalliferous mines and also underlining the concept of emergency exercise.

On 22nd April 2016, a workshop on "Emergency Preparedness and Response System" was organized at DGMS, Dhanbad, for facilitating discussion and deliberations on • recent developments in emergency management in mines and suggests inputs for drawing up a roadmap to effect a qualitative improvement in the system in vogue. Eighty five mine safety & rescue experts from different stakeholders like CIL, SCCL, HCL, MOIL, HINDALCO, Tata steel, SAIL, UCIL, ISM, CIMFR and DGMS participated in the workshop.

Based on the simulated emergency exercises conducted by DGMS and inputs gathered from the workshop, a guideline for developing emergency management plan for Indian coal and metal mines is enclosed as Appendix.

All Owners, Agents and Managers of coal & metalliferous mines are advised to ensure compliance with this circular.

(Rahul uhat Director General of Mines Safety Appendix to DGMS (Tech.) (S&T) Circular No.o% of 2016,

1. Introduction dated 2016 Scenario planning & Hypothesis testing exercise may be conducted to consider different hypothetical (but likely) scenario of mine emergencies vis-ä-vis barriers to prevent, in the backdrop of risk assessment and initiated hazard control measures.

Mine officials of neighboring mines with decent exposure to risk assessment process may be engaged to conduct the exercise with facilitation by experts.

During interaction sessions efforts would be made to search for solutions/ controls of possible hazards and risks that may not have been previously identified.

One of the critical decisions to be made following an emergency is the classification of that event to initiate appropriate level of response. Often it has been observed that several events, some resulting in multi fatalities, could not be designated as emergencies promptly enough, thus critically delaying the initiation of appropriate responses. The management and control of any event, whether involving one or several persons, is always best controlled through an effective and automatic response plan initiated at the earliest possible time.

2. Trigger action response plan and emergency initiation protocol Regular inspections are to be made as per the established protocol to identify the possible sources of hazards and initiate remedial measures by activating mechanism of control/ elimination. Taking due account of situations prevailing at mine site, 'Trigger Action Response Plans' (TARP's) and 'Emergency Initiation Protocols' (EIP's) need to be devised, for each level in the order of their seriousness and gravity.

3. Self rescue and aided rescue Objective evidence gathered during the course of conducting emergency exercises worldwide demonstrated that adoption of self-escape philosophy offers the best chance of survival to the underground personnel, when ably supported by an aided rescue strategy, which provides for external assistance to those persons unable to reach a place of safety, unaided. Ingraining the philosophy, an action plan for formulation of an emergency management plan (EMP) has been illustrated in Figure -1 for Indian mines.

4. Simulated emergency exercise The structure of the simulated emergency exercise may be envisaged encompassing following features in view:

Systematic and consistent with the concept of mutual assistance from other mines;

Directly addresses the risks prevailing at the mine;

Inclusive of external agencies such as mines rescue station, DGMS, company officials, district administration, medical services and representatives;

Incorporates an assessment and evaluation process;

In tune with risk assessment principles to ensure that the exercises introduce new safety risks to persons at a mine senior media do not The main function of aided rescue is to provide external assistance to those work persons unable to reach a place of safety, on their own. The main features of an aided rescue protocol are furnished below:

Incident management teams; formation thereof, placement of a code detailing roles, responsibilities and authorities of persons engaged in the exercise and inclusion of such details in duty cards, which are essential tools that act as critical memory prompts and provide a valuable recording and reporting function. It is also imperative to set up verifiable communication channels for accurate and timely flow of information, both on and off side.

Control room set up; may include among others, the following:

Requisite facilities for recording and analysis of data; ready availability of external expert assistance of academic and research institutions; and, an efficient electronic communication system for in-mine as well as external communication.

Mine rescue organizations; essential features are:

Efficient management, manned by a team of dedicated and competent personnel.

Comprehensive mine rescue protocols and guidelines need to be in place. A well coordinated and structured system of training and retraining of rescue personnel is a necessaty component of any mine rescue management system.

5. Barriers to re-entry Initiation of a process of hazard analysis and risk assessment is an essential pre- requisite to the event of re-entry. Thereafter, barriers to re-entry may be critically examined and evaluated and recovery be effected as per devised rescue protocols and guidelines.

6. Simulated emergency exercise at Coal Mine- A & Coal Mine- B Two emergency exercises were conducted at Coal Mine-A and Coal Mine-B to assess the emergency preparedness and response systems in Indian coal mines.

6.1 Observations In general, all coal mine personnel were committed to the exercise and the underground workers participated fully and in good spirit under difficult circumstances. All workers reached places of safety in good time in Coal Mine — A, whereas 12 persons at Coal Mine — B could not. Samples of (a) exercise event log and (b) assessment data sheets are enclosed for reference.

The outcome of the exercise, summarized below, also very clearly underlined the fact that there are ample opportunities for inducing a qualitative and quantitative improvement in the existing scenario:

+ Majority of work persons were not able to don their self rescuer's correctly;

Little efforts were made by workmen to communicate their circumstances to surface;

There were little deliberations/ planning among the team members before commencing their evacuation, which resulted in non-adoption of defined order of travel, agreed route of travel, means to ensure they stayed together;

Some teams had no gas monitoring equipment and others who possessed them, left the instruments in hurry while evacuating;

The teams did not make any efforts to ascertain the atmospheric conditions and was not in a position to evaluate the degree of danger to which they are exposed even after donning the self rescuer's which was of 30 minutes duration;

There was little, if any discernable ventilation flow to assist the teams in directional orientation;

Escape ways were not maintained properly and contained numerous trip hazards & obstructions;

•9 In poor visibility, signs posted in primary escape ways were of little or no use;

Alternative escape routes were not sign posted;

+ Not all team leaders ( overman/ mining sirdar ) were carrying hand plans;

There was an urgent need for:

o developing awareness among work persons about the hazards and implications of the underground mine fires;

o training the work persons in the prevention and combat of underground mine fires;

There was considerable under estimation of expected evacuation/ travel times at Coal Mine — A;

• Fire fighting capabilities and resources available at Coal Mine — B needs urgent review; and The main rescue van was under repair and the backup rescue van was not in full standby mode at Coal Mine — A.

7. Recommendations Based on the inferences drawn from the review of existing practices and conducted simulated emergency exercises, it is suggested that the following issues may be kept in perspective while formulating an emergency response management scheme:

a) Consequent upon Risk assessment exercise, control measures may be formulated detailing responsibility of concerned mine officials with a protocol of implementation, to obviate the possibilities of dangerous occurrence in a coal mine.

b) Scenario planning & hypothesis testing sessions may be conducted to search for possible solutions/ controls of hazards and risks which may have not been previously identified.

c) Details of ventilation net works with airflows and quantity may be incorporated in ventilation plan.

d) A schedule of training and re-training need to be drawn up for all persons on the correct donning and wearing procedures for self rescuers.

e) Use of gas chromatography equipment need to be considered for mine gas analysis purposes.

f) Current standing orders be reviewed with a view to incorporate concepts like developing trigger action response plans to establish specific trigger points.

g) Release of stink gas as a mode of emergency initiation protocol need to be considered to advise all work persons in the mine, particularly those without easy access to telecommunication system of an order of evacuation.

h) Establishment of procedures detailing standard methods for deciding plans/ options with work persons prior to evacuation, including routes of travel, modes of travel, order of travel, use of link lines, communications, signaling, etc.

Primary and secondary escape routes be established and maintained. The escape ways may be fitted with guide ropes, clearly sign posted and facilities like fluorescent droppers, embossed printing be used to make them identifiable in poor visibility.

In each working district, places need to be identified where workmen can gather in the event of an emergency. Such places are to be equipped with telephones, mine plans, link lines and blind —man walking sticks.

Development of duty cards that individually detail the expected roles, responsibilities and authorities of all persons in charge of coordinating and/or controlling an emergency response, which may be kept at a number of designated places around the mine site.

The construction of 'refuse chamber' need to be given a serious consideration to mitigate the hazards associated with extensive workings and steep gradient in coal mines like Coal Mine-B.

m) A comprehensive re-training program may be put in place to raise the awareness of work persons on the circumstances to be expected in the vicinity of an underground fire. Additional training should be conducted on the options available to combat underground fires and the risks and hazards associated with each.

(Rahul Guha)

Director General of Mines Safety START TIME 11:40 11:45 11:50 11.54 11:58 12:03 12:05 12:05 12:08 12:09 12:11 12:13 12:15 12:30 12:38 SAMPLE EMERGENCY EXERCISE EVENT LOG Coal Mine — A EVENTS Assessment team in lower Seam advise workers of thick choking smoke entering their workplace.

Assessment team in upper Seam advise workers of thick choking smoke entering their workplace.

Mine workers donned Self Rescuers and commenced evacuation.

Sirdar from Escaping team 1 advised surface of circumstances.

Acting Manager telephones Mines Rescue Brigade, Escaping team 3 arrive at pit-bottom (shaft).

One worker each from Escaping teams 1 and 2 simulate collapse (unconscious) from carbon monoxide poisoning.

Escaping team 4 arrive at pit-bottom (shaft).

Mines Rescue Brigade ready to leave station — six persons, fully equipped.

Escaping teams 1 and 2 arrive at pit-bottom (shaft) and contact the Onsetter and the surface Banksman.

Escaping teams 1 & 2 demanded cage to complete evacuation to surface.

Escaping team 3 & 4 demanded cage to complete evacuation to surface.

Ambulance arrives on surface.

Escaping team 1 & 2 arrived at surface Attendance Cabin.

Escaping team 3 & 4 arrived at surface Attendance Cabin.

Exercise Terminated.

ELAPSED TIME 0:00 0:05 0:10 0:14 0:18 0:23 0:25 0:25 0:28 0:29 0:33 0:35 0:58 > W C O C O -3 O c o a.

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o o Government of India Ministry of Labour & Employment Directorate General of Mines Safety No. DGMS (Tech) Circular (MAMID)/ To The Owner, Agent and Manager of All Mines Dhanbad, dated: gg / c, G /2016 Subject: Online maintenance of registers/records mandated by the Mines Act/ 1952 and allied legislation by mines.

Sir, As you are aware that the Mines Act, 1952 and allied legislation mandate maintenance of physical registers and documents by mines. These registers and records have to be produced/made available to the inspectors/authorities during the inspection of the mine or on other occasions as per law. In this context, it is observed that digitization of these Registers and other documents has the potential to achieve large productivity improvement, both in terms of simplifying processes and data management as well as improving the ease of monitoring by Directorate General of Mines Safety (DGMS) and other regulatory authorities.

Moreover, Section 4 of the Information Technology Act, 2000, provides that "where any law provides that information or any other matter shall be in writing or in the typewritten or printed form, then notwithstanding anything contained in such law, such requirement shall be deemed to have been satisfied if such information or matter is rendered or made available in an electronic form; and accessible so as to be usable for a subsequent reference". In view of this provision, it has been decided that that if any mine management makes available such registers/records in electronic form and accessible to the inspector/authority so as to be usable for a subsequent reference, then that mine management need not be required to produce print/hard copy of these registers, records or documents.

Thus, it has been decided to move towards a regime of online maintenance of registers/records mandated by the Mines Act, 1952 and allied legislation, by mine and integrate the same with the Shram Suvidha Portal so that the information is available on real time to both the mine management as well as the DGMS. As a first step to move in this direction, it is required to have all registers/documents maintained in digital/electronic form.

Yours faithfully, (Rahul Guha Director General of Mines Safety (Govt. of India Ministry of Labour and Employment Directorate General of Mines Safety DGMS(Tech.) Circular No. of 2016 To Dhanbad, datedQÄ10G12016 All Owners, Agents and Managers of Metallferous Mines Standards of illumination in underground metalliferous Subject:

mines Sir, Abbreviations - DGMS: Directorate General of Mines Safety; S&T Division:

Science & Technology Division; DDG(HQ): Deputy Director General (Head Quarter); CIL: Coal •India Limited; SCCL: Singareni Collieries Company Limited; CIMFR: Central Institute of Mining and Fuel Research; ISM: Indian School of Mines; lux: SI unit of illuminance and luminous emittance, measuring number of lumens per square metre; H: Horizontal illuminance, the measure of illuminance taken through a tight meter's sensor at a horizontal position on a horizontal surface ; V: Vertical illuminance, the measure of illuminance taken through a light meter's sensor at a vertical osition on a vertical su ace.

Proper. illumination is desirable and •can be an effective aid to tackle hazards in metalliferous mines. The minimum standards of illumination to be provided at different places of working in underground metalliferous mines assume significance in the backdrop of recent developments in mine technology and lighting.

For appraisal of present status of illumination in metalliferous and coal mines, and formulation of minimum standards thereof, a project was undertaken by Science & Technolog.T Division of DGMS. As a part of the project, illumination surveys were carried out in coal and metalliferöus mines.

Based on the inputs derived from illumination surveys, international best practices and a meeting of different stakeholders held on 17.02.2016, the minimum standards of illumination to be provided at different places of working in underground metalliferous mines along with general guidelines for mine lighting were finalized, which are detailed below:

1 of 4 STANDARDS OF ILLUMINATION IN UNDERGROUND METALLIFEROUS 100 H, 50 v S.N MINES Place/ Area to be illuminated At every shaft landing and shaft bottom or siding which is in regular use Travelling roadway and Haulage road way, including Man-riding roadway and eve incline in use Haulage Roadway (junctiöns) at which tubs are coupled or uncoupled At every places of loading and unloading At every room and place containing any engine, motor or other apparatus in regular use Any working face and stoges Ladder way/ Man way Pumping Station Area under filling / stowing Conve ors

(i) Transfer points and drive/tail end area ii Alpn conve or Hand pickiQg points Loco chargi g station Undergrou d Garage/ workshop

(i) Electric substation

(ii) Other places of operation of electrical a paratus e ui ment At every First —aid station Miners station/ Rest shelter Minimum level of illumination to be provided (in lux)

50 H 10 H, 10 v 30 H 30 H, 20 v 30 H 20 H, 30 V 15 H 30 H IOH 40 H 20H 50 H 50 H 50 H 20 H, 20 V 50 H 25 H Mineral Handlin Plant Places of crushing, screening, segregation and loadin unloadin ii O eration oints (iii Other laces in eneral workshop at surface General working areas as determined by the Manager in writin 40 ' •H 50 H 20 H 100 H, 50 v IOH at the level of surface to be illuminated Guidelines for mine illumination 1.

The mine lighting should be designed and installed with proper, lamps and fixtures in regard to height, orientation, spacing and reflectors. or other accessories, so as to secure æ uniform distribution of light .on the work area for visual comfort and avoiding objectionable. shadows, sharp contrasts of intensity, glare, light clutter (excessive groupings of light) and light pollution to prevent strain on the eyes of the workmen, work fatigue and medically defined stress.

Portable lighting shall be provided at places, where the permanent/ fixed lighting is not possible.

At strategic locations like electric substation, winding. engine room and any other places as determined by the Manager, emergency lighting arrangement by separate source shall also be provided.

5. In respect of any particular place or operation in a mine, where due. to existence of some special conditions the manager is of the opinion that compliance as per stipulated minimum standard is not reasonably practicable, he may provide illumination in variance thereof, if he has indicated the modified minimum illumination to be provided for such place or operation, as the case may be, in the "Illumination Scheme" with proper jpstification for the same and submitted a copy ther4eof to the Regional Inspector.

6. Illumination Survey:

(i) The manager of every mine shall arrange to conduct Lighting Survey once at least in every month to ensure adequacy of illumination.

(ii) While making such survey, the measurement of lighting shall also be taken at the point fartheSt from the source of light lying within the limit of the roadways and work place, as the case may be.

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(iii) A record of every such survey shall be mairitained and signed by the. competent person making the survey and countersigned and dated by the manager,

7. Illumination Plan:

the same shall be clearly marked and demarcated on the plan with reasons to be recorded. The plan shall be kept signed and dated by the surveyor and the official authorized for maintaining the lighting standard and countersigned and dated by the manager.

(ii) The Illumination Plan shall be brought up to date in every month based on the monthly illumination survey and considering the current status of workings.

In addition to the above, the roof and sides of the aforesaid places belowground shall also be kept effectively whitewashed, which would further help in significantly improving the underground visual environment and level of illumination.

'All Owners, Agents and Managers of metalliferous mines are advised to ensure compliance with this circular.

(Rahul Gu a)

Director General of Mines Safety Jin / Govt. of India u-rå Ministry of Labour and Employment Directorate General of Mines Safety DGMS(Tech.) Circular No. II of 2016 To Dhanbad, All Owners, Agents and Managers of Metallferous Mines Subject: Standards of illumination in opencast metalliferous mines Sir, Abbreviations - DGMS: Directorate General of Mines Safety; S&T Division:

Science & Technology Division; DDG(HQ): Deputy Director; General (Head Quarter); CIL: Coal India Limited; SCCL: Singareni Collieries Company Limited; CIMFR: Central Institute of Mining and Fuel Research; ISM: Indian School of Mines; lux: SI unit of illuminance and luminous emittance, megsuring number of lumens per square metre; H: Horizontal illuminance, the measure of illuminance taken through a light meter's sensor at a horizontal position on a horizontal surface ,' V: Vertical illuminance, the measure of illuminance taken through a light meter's sensor at a vertical osition on a vertical su ace.

Proper illumination is desirable and can be an effective aid to tackle hazards in metalliferous mines. Existing illumination standards are several decades old, necessitating a comprehensive review in the backdrop of recent developments in mine and lighting.

For appraisal of present -status of illumination in opencast metalliferous and coal mines, and formulation of draft revised standards thereof, a project was undertaken by Science & Division of DOMS.' As a part of the project, illumination surveys were carried out•in opencast metalliferous and coal mines.

Based on the inputs derived from illumination surveys, international best practices and a meeting of different stakeholders held on 17.02,2016, the minimum standards of illumination to be provided at different places of working in opencast metalliferous mines along with general guidélines for mine lighting were finalized which are detailed below:

1. of 5 STANDARDS OF ILLUMINATION IN OPENCAST METALLIFEROUS MINES Serial No.

IO II Place/ Area to be illuminated Work place of Heavy Machinery Drilling operations (i)Area where drilling rig works (ii)Area where drill holes exists Places where manual work is done Places where loading, unloading or transfer, loading of dumpers, trucks or train is carried on (including 0B Dump and Mineral/ Ore Stack Yard)

Operators cabins of machines or mechanisms Haul roads for Trucks and Dumpers Rail haulage track in the pit Roadways and foot paths from bench to bench Permanent paths for use of persons employed etc.

In-pit Crusher/ Feeder Breaker Hand Picking Points ConVeyers

(a) Transfer points and drive/ tail end area

(b) Along conveyor Minimum standards of illumination to be rovided in lux 15 H, 25 v (so as to cover depth and height through which the machine o erates.

25 v (so as to illuminate full hei ht of the drillin ri 15 H 15 H, 25 V 15 H, 15 V 50 H at all places of operation IOH IOH IOH IOH 40 H 50 H 40 H 20 H Mineral/ Ore Handling Plant

(a) Places of crushing, screening, segregation and loadin unlo adin

(b) Operation points

Pumping Station

(i) Electrical Sub-station

(ii) Other places of operation of electrical ap a;ratus e ui ment Fir•st Aid •station Rest shelter Workshop Parking Yard General working areas as determined by the Manager in writin 40 H 50 H 20 H 40 H 100 H, 50 V 20 H, 20 v 50 H 30 H 100 H, 50 V 50 H IO H at the level of surface to be illuminated Guidelines for mine illumination 1.

Portable lighting shall be provided at places, where the permanent/ fixed lighting is not possible.

At strategic locations like electric substation, and any other places as determined by the Manager, emergency lighting arrangement by separate source shall also be. provided.

In case of haul roads, orientation of light fittings should be kept so adjusted as to have emittance of light across the road and not along the road. Where the width of haul roads is more, the lighting arrangements shall be provided either by rows of lights erected on both sides of the road or by a centrally •erected row, so as to maintain illumination as per standard.

Lighting arrangement at working places of heavy machineries, dump/ stack yard and other loading/ unloading areas shall be such that the formation of dark zone is avoided.

Dump/ stack yards shall be illuminated by suitable numbers of high mast towers/ light source. It shall also be ensured that adequate light reaches up to edges of the active dump.

In respect of any particular place or operation in a mine, where due to existence of some special conditions the manager is of the opinion that compliance as per stipulated minimum standard is not reasonably practicable, he may provide illumination in variance thereof, if he has indicated the modified minimum illumination to be provided for such place or operation, as the case may be, in the "Illumination Scheme" with proper justification for the same and submitted a copy thereof to the Regional Inspector.

10. Illumination Survey:

(i) The manager of every mine shall arrange to conduct Lighting Survey once at least in every month to ensure adequacy of illumination.

(iii) A record of every such survey shall be maintained and signed by the competent person making the survey and countersigned and dated by the manager.

11. Illumination Plan:

4 of 5 (it) rThe Illumination Plan shall be brought up to date in every month based on the monthly illumination survey and considering the current status of workings.

This circular supersedes the DGMS Circular (Legis.) No. 3/1976. Action is also being taken to forward a copy of this revised standard for notification in the Gazette of India.

All Owners, Agents and Managers of metalliferous mines are advised to ensure strict compliance with this circular.

(Rahul Guha)

Director General of Mines Safety 5 of 5 / Govt. of India Ministry of Labour and Employment Directorate General of Mines Safety Circular No.

To Dhanbad, Dated 0-0) 2016 All Owners, Agents and Mangers of Coal Mines Subject:

Treatment of coal dust with incombustible dust in the workings of belowground coal mines and sampling thereof.

Sir, Detailed provisions pertaining to treatment of coal dust in the workings of belowground coal mines with fine incombustible dust and sampling of the mine dust have been made under regulations 123A and 123B respectively of the Coal Mines Regulations, 1957.

However, based on the feedback received from various sources, it has come to the notice of this Directorate that the ground reality of treatment of the coal dust and sampling of dust in mine workings is not up to the mark. In most of the mines, the supply of incombustible (stone) dust is not only far less than the actual requirement, but the same is also irregular, resulting in absence of a system of regular treatment and sampling of the dust, Needless to say, regular sampling and adequate treatment of the dust in belowground coal mines is of paramount importance as the same have got direct bearing on mitigation of explosion hazard. Recently, in a meeting of experts from ISM, CIMFR, CMPDIL and DGMS held on 04.072016 at DGMS Dhanbad, serious concerns have been raised on the poor status of compliance of the above provisions in Indian coal mines.

The Owners, Agents and Mangers of all belowground coal mines are, therefore, advised to give due importance to the above issue and take special care to ensure regular sampling and treatment of' coal dust in the mine workings as stipulated under regulations 123A and 123B of the Coal Mines Regulations, 1957.

(Rahul Guha)

Director General of Mines Safety

Reproduced from the official DGMS circular compilations for public reference. The PDF is the authoritative text; DGMS may have amended or withdrawn older instructions since.