NO: E-29021|20235|2019|Electrical(HQ)

Dhanbad, Date: 21/02/2019

DGMS APPROVAL NO.-E_73143/2

From

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

To

SOUMYA DE, ADCEPT TECHNOLOGIES PVT. LTD., ADCEPT TECHNOLOGIES PVT LTD
West Bengal, Kolkatta, Kolkata, 700019

Sub:  Approval no 651 of 2013

Dear Sir,

Renewal process for the approval no 651 of 2013
The file is uploaded in online approval system for processing further renewal of approvals online.

Sub: DGMS approval Number 651 of 2013 under Regulation 208 (3) of the Coal Mines Regulations, 2017 for Intrinsically Safe Digital Wireless Network along with Miner Tracking and Wireless Communication System (as mentioned in Annexure-B) manufactured by M/s. Mine Site Technologies Pty. Limited, Australia for use in belowground Coal Mines – Renewal thereof.

           Please refer to your letter No. App/DGMS/06072011/1 dated 11.12.2018 and subsequent correspondence thereupon  the above subject.

          Based on DGMS approval No. 651 of 2013 issued by this Directorate’s letter No. 571/122/EHQ dated 21.01.2013 and CIMFR test report Nos. in Annexure-B, I hereby renew the above approval upto 21.01.2021 from the date of expiry i.e., from 21.01.2019  for use in  belowground coal mines, subject to compliance with conditions stipulated in the original approval as well annexure enclosed with this renewal letter.

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

Your Faithfully,

(R SUBRAHMANIAN) Director General of Mine Safety - (HQ) Date : 17/09/2019

       Enclosure: Annexure A & B.

Annexure-A

Conditions for renewal of DGMS approval No. 651 of 2013 under Regulation 208 (3) of the Coal Mines Regulations, 2017 for Intrinsically Safe Digital Wireless Network along with Miner Tracking and Wireless Communication System (as mentioned in Annexure-B) manufactured by M/s. Mine Site Technologies Pty. Limited, Australia for use in belowground Coal Mines.

               (i) Every unit shall carry conspicuously in a permanent manner the aforesaid                        

1.            identification mark, i.e. ‘DGMS APPROVAL NO. 651 of 2013.

                   In addition, every unit shall 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.

       2.   (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.

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

       4.   (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.

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

6. The cables connecting with Equipment shall conform to the provisions of the DGMS Tech. Circular (Electrical) No. 12 dated 25.05.2015 and corrigendum vide DGMS Tech. Circular (Electrical) Approval No. 01 dated 19.02.2016 in addition to the special requirement, if any, specifically for safe operation of the equipment.

7. While seeking renewal of approval, valid BIS license in the case of Indian manufacturers and in case of foreign manufacturers QAR/QAN for the associated flameproof / weatherproof / intrinsically safe apparatus, as may be applicable, shall be submitted and the same shall remain valid as long as the apparatus is manufactured and marketed.

       8.  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.

        9.  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.

        10.   The renewal of the subject equipment is with regard to Ex standards mentioned herein. Other relevant standards applicable for assessment of its electrical                        parameters required under type test have not been taken into consideration.

        11.     All circulars/general approvals issued by DGMS from time to time, relevant to the equipment shall also be complied with.

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

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

         14.   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.

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

          16.  The approval is renewed upto 21.01.2021 from the date of expiry i.e. from 21.01.2019.

           17.   The equipment manufactured subsequently shall be identical to the proto type  tested at CIMFR vide test report Nos. as mentioned in Annexure-B

           18.   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. 

           19.   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.                                                                                     

Annexure-B

List of Intrinsically Safe equipment associated with Digital Wireless Network along with Miner Tracking and Wireless Communication System for use in belowground Coal Mines issued vide DGMS approval No. 651 of 2013.