Coal mining equipment approval

No.

From:

of India Ministry of Labour & Employment Directorate General of Mines Safety /EHQ, Dhanbad, dated Speed post —2016 The Director General of Mines Safety Directorate General of Mines Safety P.O & Distt: Dhanbad-826 016.

To Shri Ajoy Kumar Agarwala - Director M/s. Prabhu Industrial Udyog Pvt Ltd.

1, Tarpan Ghat Road Kölkata-700 053.

Sub: Renewal of DGMS approval No. 304 Group-I of 1990 under Regulation 181 (3) of the Coal Mines Regulations, 1957 for flameproof air break star delta starter, type FS-4 rated at and upto 600 A and upto 550 V, 3 phase, 50 Hz manufactured by M/S Prabhu Industrial Udyog Pvt. Ltd., Kolkata conforming to IS/IEC 60079-1:2007, IS/IEC 60079-11:2006 and IS/IEC 60079-0:2004 for use in belowground coal Mines.

Ref: CIMFR test report No. CIMFR/TC/SR/427 dated 12.07.2012 and CIMFR/TC/P/1443 dated 29.01.2013.

IDENTIFICATION MARK DGMS APPROVAL NO. 304 Group-I of 1990 Dear Sir, Please refer to your letter Nos. PIU/ 1373/2015-16 dated 30.03.2016 and subsequent correspondence thereupon the above subject.

Based on DGMS approval No. 304 Group-I of 1990 issued by this Directorate's letter No. •423/90/97/EHQ dated 31.01.1990, BIS Licence No, CM/L-1855466 and above test reports under reference, I hereby renew the approval upto 18.07.2021 from the date of expiry i.e. from 18.07.2016 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, (Ra ui Director General of Mines Safety Annexure DGMS approval No. 304 Group-I of 1990 renewed by this Directorate's letter No.

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

Conditions for renewal of DGMS approval No. 304 Group-I of 1990 under Regulation 181 (3)

of the Coal Mines Regulations, 1957 for flameproof air break star delta starter, type FS-4 rated at and upto 600 A and upto 550 V, 3 phase, 50 Hz manufactured by M/S Prabhu Industrial Udyog Pvt. Ltd., Kolkata conforming to IS/IEC 60079-1:2007, IS/IEC 60079- 11:2006 and IS/IEC 60079-0:2004 for use in belowground Coal Mines.

1. (i) Every unit Shail carry/ conspicuously in a permanent manner the aforesaid identification mark, i.e. 'DGMS APPROVAL NO. 304 Group-I of 1990 renewed vide ..../EHQ dated................ .... .. " DGMS letter No..

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

DC-MS 2.

3, 4.

5.

(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 Shail 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 an extract of the from the testing laboratory with the lab certified drawing , 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.

Contd.P-2 6.

7.

8.

9.

10.

11.

12.

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15.

-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.

In case of any permissible variations issued from this Directorate, they shall also be read along with this letter and the original approval letter.

The approval is renewed upto 18.07.2021 from the date of expiry i.e. from 18.07.2016.

The equipment manufactured subsequently shall be identical to the proto type tested at CIMFR vide test report Nos. CIMFR/TC/SR/427 dated 12.07.2012 and CIMFR/TC/P/1443 dated 29.01.2013.

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 Gu a)

Director General of Mines Safety