Coal mining equipment approval

Speed Post RRQiR/Government of India Ministry of Labour & Employment Directorate Genera' of Mines Safety /R. ft-qi-qi

- 2016 From:

Director General of Mines Safety Directorate General of Mines Safety P.O & Distt: Dhanbad-826 016.

To Shri A.K. Chokhani - Director M/s. ABC Electricals Private Limited 23A, Netaji Subhas Road, 10th Floor, Room no. 44, Kolkata-700 001.

Sub:

Ref:

Renewal of DGMS approval no. 121 Group-I of 1976 under Regulation 181 (3) of the Coal Mines Regulations, 1957 for flameproof puli chord switch type-ABC-75/PC rated at 250 V AC, 3 A, 50 Hz of cast iron construction casing and boltless cover fited with incoming and outgoing flameproof terminal box (detachable) and cable sealing box manufactured by M/S ABC Electricals Private Limited, Kolkata conforming to S/IEC 60079-0:2004 and IS/IEC 60079-1:2007 for use in belowground coal.

ERTL test report no. dated 29.07.2015.

IDENTIFICATION MARK DGMS APPROVAL NO. 121 Group-I of 1976 Dear Sir, Please refer to your letter No. DGMS/16-17/100 dated 27.05.2016 and subsequent correspondence thereupon the above subject.

Based on DGMS approval no 121 Group-I of 1976 issued by this Directorate's letter

00. 299/A/76/1003/EHQ dated 01.09.1976, BIS Licence no. CM/L-5420047 and above test report under reference, I hereby renew the approval upto 11.07.2021 from the date of expiry frqm for use in belowground Coal Mines, subject to compliance with conditions stipulated in the original approval as well as annexure enclosed with this renewal letter.

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

Encl : Annexure Yours faithfully, (Rahul aulas Director General of Mines Safety Annexure DGMS approval no. 121 Group-I of 1976 renewed by this Directorate's leter no.

.../EHQ dated.......

Conditions for renewal of DGMS approvai no. 121 Group-I of 1976 under Regulation 181 (3)

of the Coal Mines Regulations, 1957 for flameproof pull chord switch type-ABC-75/PC rated at 250 V AC, 3 A, 50 Hz of cast iron construction casing and boltless cover fitted with incoming and outgoing flameproof terminal box (detachable) and cable sealing box manufactured by M/S ABC Electricals Private Limited, Kolkata conforming to S/IEC 60079- 0:2004 and IS/IEC 60079-1:2007 for use in belowground Coal.

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Every unit shall carry conspicuously in a permanent manner the aforesaid identification mark, i.e. 'DGMS APPROVAL NO. 121 Group-I of 1976 renewed vide .../EHQ dated....

DGMS letter no In addition, every unit shall also carry permanently this Directorate's approval mark as given below :

OGMS

(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 main endosure 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 copy of factory test report along with drawings, instruction manual on the 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.

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-2- 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.

If there occurs any revision of standards applicable to the product/equipment, the manufacturer shall get the product/equipment tested as per revised standards and submit test reports to the customer for information and to this Directorate for further approval/renewal.

The cable entry devices, threaded adaptors and stopping plugs shall be suitable for the equipment and be considered as a part of equipment (not a component). The cable entry device and cabling methods used shall be suitable for their intended duty and for the special type of cable used in mining. Such cable entry devices shall be duly certified as per relevant IS/IEC standards.

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.

The approval is renewed upto 11.07.2021 from the date of expiry i.e. from 11.07.201$.

The equipment manufactured subsequently shall be identical to the proto type tested at ERTL vide test report No ERTL test vide report no.

dated 29.07.2015.

At the time of applying for renewal, details of supply with name of mines, purchase order and date shall be furnished with the application.

.1f at any time any of the conditions subject to which this approval has been granted, is violated or not comp'ied with, this approval shah be deemed to have been revoked with immediate effect.

The above approval may be amended or withdrawn at any time, if considered so 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.

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(Rahul Director General of Mines Safety