Coal mining equipment approval

of India Ministry' of Labour & Employment Directorate General of Mines Safety /EHQ, dated the No.

From:

- -2016 The Director General of Mines Safety Directorate General of Mines Safety, P.O & Distt: Dhanbad - 826 016.

To Shri Ajit Singh Yadav - Partner M/s. Electrical Equipment Corporation Plot No.314, Udyog Vihar, Phase-VI, Sector-37 Gurgaon-122 001(Haryana).

Sub:

Ref:

DGMS approval under Regulation 181 (3) of the Coal Mines Regulations, 1957 for flameproof/weatherproof Air circuit breaker, in mild steel/cast iron grade SG 150 construction rated 400 A, at 550 V AC, designated by type No. EEC-A.C.B.-OI manufactured by M/S Electrical Equipment Corporation, Gurgaon conforming to IS/IEC 60079-1:2007, IS/IEC 60079-0:2004 & IS:12063-1987 (IEC 60529:1989)

for use in belowground coal mines.

CIMFR test report No. CIMFR/TC/P/H318 dated 09.09.2011 and No.

CIMFR/TC/P/H88 dated 10.06.2015.

IDENTIFICATION MARK DGMS APPROVAL NO. Z../.a.. OF 2016 Dear Sirs, Based on performance report received from Chief (Engg. Services), Mis. Tata Steel Limited/ Jharia Collieries, Jamadoba, Dhanbad and above test report under reference, approval is hereby accorded to the subject equipment for a period of five (05) years from the date of issue of this letter for use in belowground Coal Mines, subject to compliance with the conditions stipulated in the Annexure.

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 Guha Director General of Mines Safety DGMS approval No.

Anneure of 2016 issued by this Directorate's letter no.

. ......./EHQ 31)

Conditions for DGMS approval under Regu'ation 181 (3) of the Coal Mines Regulations, 1957 for flameproof/weatherproof Air circuit breaker, in mild steel/cast iron grade SG 150 construction rated 400 A, at 550 V AC, designated by type No. EEC-A.C.B.-OI manufactured by M/S Electrical Equipment Corporation, Gurgaon conforming to IS/IEC 60079-1:2007, IS/IEC 60079-0:2004 & IS:12063-1987 (IEC 60529:1989) 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.

....e,j.a...

of 2016 issued vide DGMS letter no ........./EHQ dated..

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

Gott +PROVAL*O•

(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 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 Sha" be made readily available to the user as and when required for proper maintenance of the equipment.

(a) The customer Shail 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 maintenar:-e of the equipment and spares parts catalogue at the time of delivery of the equip nent.

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.

The product shall not be manufactured and marketed unless a valid BIS Licence exists at that point of time. A copy the Licence shall be supplied this office immediately on obtaining the same.

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 in sen,/ice shall be suitable for their intended duty and special types of cable used in mining. Such cable entry devices shall be duly certified as per relevant IS/IEC standards.

The approval is accorded for a period of two (05) years from the date of issue of this letter.

The equipment manufactured subsequently shall be identical to the proto type tested at CIMFR vide test report No. CIMFR/TC/P/H318 dated 09.09.2011.

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

If at any time any of the conditions subject to which this approval has been granted, is violated or not complied with, this approval shall 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.

(Rahul Guha)

Director General of Mines Safety