Flameproof squirrel-cage induction motor 22 kW (Crompton Greaves)

Speed Post Government of india Ministry of Labour & Employment Directorate General of Mines Safety No.

From /EHQ, Dhanbad, dated it-cg -2017 Director General of Mines Safety Directorate General of Mines Safety, P.O & Distt: Dhanbad - 826 016.

To Shri Dilip Pawar - Dy. Generai Manager M/S CG Power and Industrial Solutions Ltd.

A-6/2, MIDC ßhmednagar-414 111 (Maharashcra).

Sub:

Ref:

Renewal of DGMS approval No. 122 Group-I of 1976 under Regulation 181 (3) of the Coal Mines Regulations, 1957 for flameproof squirrel cage induction motor 22KW (30 HP), upto 650 V, 3 phase, 50 Hz, 3000 RPM fan cooled with detachable (3 terminals)

box fitted with cable sealing box and glands for wire armoured cables with class 'F' insulation in frame size-E180L manufactured by M/s. Crompton Greaves Ltd.l Ahmednagar conforming to IS/IEC 60079-1:2007 and IS/IEC 60079-0:2004 for use in belowground Coal Mines, ERTL test report No. dated 12.12.2012.

IDENTIFICATION MARK DGMS APPROVAL NO. 122 Group-I of 1976 Dear Sirs, Please refer to your letter No. LTM/DGMS/REN/2016-16/06 dated 12 042017 and subsequent correspondence thereupon the above subject.

Based on DGMS approvai No. 122 Group-I of 1976 issued by this Directorate's letter No. 83/76/1081/EHQ dated 21,09.1976, BIS Licence No. CM/L-0870053 and above test reports under reference, 1 hereby renew the approval uptQ 31.07.2019 from the date of expiry i.e. from 31.07.2017 for. use belowground in Coal Mines, subject to compliance with conditions stipulated in the original approval as well as in the annexure enclosed.

The application for renewal should be made at least three (03) months before the date of expiry of the approval.

Yours faithfully, Encl Annexure (Prasanta Kumar Sarkar)

Director Genera\ of Mines Safety Anne DCMS approval Nc. 122 Grous-l cf 1976 renewed by this Directorate's ;elter i ! .... ...........—...UEHQ dated...

Condition for renewal of DCMS approval No. 122 Group-I of 1973 under Regulation 181 (3)

of the Coal Mines Regulations, 1957 for flameproof squirrel cage induction motor 22KW (30 I-IP), upto 650 V, 3 phase, 50 1-iz, 3000 RPM fan coo!ed daÉcHaöie tecmir,afs)

fitted with rah\e znc; for •vire cajes wich class 'F' insulation in frame size-Ft8C'L by M/S Crompton Greaves Ltd. Ahmednagar conforming to iS/iEC 60079-1:2007 end IS/IEC 60079-0:2004 for use in belowground coal Mines.

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(i) Every unit shall carry conspicuously in a permanent manner the aforesaid identification mark, i.e. 'DGMS APPROVAL NO. 122 Group-I of 1976 renewed vide DGMS letter no. ....2..2,.l.m.9..7....................

../EHQ ciacec.

In addition, event unit shaii also carry permanently this Directorate's approval mark as given below :

(ii) In the nameplate marking shall be in accordance with the applicable requirements of the relevant standards.

(a)The design of the electrical circuit shall not be changed without obtaining prior approval from this Directorate.

(b)Conspicuous warning inscriptions against opening the cover of the rnain enclosure or of any apparatus which gives access to the flameproof enclosures on live parts or which is designed to receive cable attachment unless the supply to the unit is isolated at source, shall be affixed permanently on the respective part to ensure that all live parts within the unit are made dead and safe.

Spare parts shall be made readily available to the user as and when required for proper maintenance of the equipment.

(a) The customer shall be supplied the copy of this approval letter, the test report from the testing laboratory with the lab certified drawing , an extract of the condition & special conditions, maintenance schedule, if any, recommended by the testing laboratory in their test report(s) so as to maintain safety features of apparatus/equipment.

(b) The customer shall also be provided a cooy of test ceport along with drawings, instructicr manuai on Che installation, operation and maintenance of the equipment and spares parts catalogue at the time of delivery of the equipment.

The user shall furnish the performance report of the equipment directly to this Directorate after one (01) year of actual use.

Any modification to the equipment that might be considered necessary at a later date shall be effected upon being so directed by this Directorate.

An officer of this Directorate may at any time draw a sample either from the factory or from the user and get it tested at the cost of the manufacturer. If the test reports are not satisfactory, this approval shall be deemed to be suspended.

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Chere occurs any revision of standards applicabte to the producd/equipmem, the rnanufacturer shali get the product/equiprnert tested as per revised standards and subn-,it test reports L-c Che customer for InFcrmation anci to tniE Direct0'3t2 for further aporcva'/rene\A/aI T ne cable entry devices, •threacteci ac;aptors anc stopping pugs snafi be suitaöie for a ccraoone,nc-).

cable entry device and cabling methods used shan be suitabie "or their incenöed end for the speciEl type of cable used in raining. Suca cadie encry aevices snail oe duly certified as per relevant IS/IEC standards.

The renewal of the subject equipment is with regard to Ex standards mentioned herein, Other relevant standards app'icab'e for assessment of its electrical parametecs cevu:red under type test have nct been consideration All circulars/general approvals issued by DGMS from time to time, relevant to the equipment shall also be complied with.

In case of aluminium die-cast rotor of the motor, the rotor shall not be dismantled, assembied or kept exposed in the explosive gassy atmospheres to prevent incendive sparking. A caution plate "Aluminium Die-Cast Rotor: Not to be dismantled, assembled or kept exposed in explosive gas atmosphere" shall be provided at conspicuous place affecting flameproof features of the Inuicacing the motor is having aluminium die-cast rotor. Operation & maintenance manual of the motor Shail also indicate the danger for aluminium die cast rotor due to incendive sparking, In case of any permissible variations issued from this Directorate, they shall also be read along with this letter and the original approval letter, While seeking renewal of approval, valid BIS license in the case of Indian manufacturers and in case of foreign manufacturers, QAR/QAN as may be applicable shall be submitted and the same shall remain valid as long as the apparatus is manufactured and marketed.

The approval is renewed upto 31.07.2019 from the date of expiry i.e. from 31.07.2017.

The equipment manufactured subsequently shall be identical to the proto type tested at ERTL vide test report dated 1212 2012.

At the time of applying for renewal, details of supply with name of mines, purchase order and date shall be furnished with the appiication If at any time any of the conditions subject to which this approval has been granted, is viojaced or noc complied wicn, cnis approvai shaii be deemed to have been revoked with immediate effect.

The above approval may be amended or withdrawn at any time, if considered sc necessary in the interest of safety and is being issued without prejudice to any other provisions of law which may be or may become applicable at any time, (Prasanta Kumar Sarkar)

Director General of Mines Safety