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  • भारत सरकार
  • GOVT. OF INDIA
  • श्रम एवं रोजगार मंत्रालय
  • MINISTRY OF LABOUR AND EMPLOYMENT
  • खान सुरक्षा महानिदेशालय
  • DIRECTORATE GENERAL OF MINES SAFETY

Application

Approval Letter View

Approved No :- DGMS APPROVAL NO.- E_75072/7 of 2020

 

NO: E-29021|90|2018|Electrical(HQ)                                                                                                                                                  Dhanbad, Date: 25.02.2020

DGMS APPROVAL NO.- E_75072/7 of 2020

From

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

To

Shib Bhowmik, Joy Global (UK) Limited, Joy Global (UK) Limited 4 Swanwick Court Alfreton Derbyshire - DE55 7AS
Derbyshire, Derbyshire, Alfreton, 0

Sub:-   Approval under Regulation 208 (3) of the Coal Mines Regulations, 2017 for Flameproof and Intrinsically safe electrical equipment as mentioned in Annexure-B associated with Continuous Miner, Model: 12CM27 manufactured by M/s. Joy Global (UK) Ltd., for use in belowground Coal Mines in India.

Reference: Test reports as per Annexure – B.

 

IDENTIFICATION MARK

DGMS APPROVAL No.   E_75072/7 of 2020

In reference to the field trial permission issued vide letter No. E-29021/90/2018/Electrical(HQ) dated 08.01.2019 and based on the performance report received from  M/s. Central Coalfields Limited, Ranchi and test reports as referred above, approval is hereby accorded to the Flameproof and Intrinsically safe electrical equipment as mentioned in Annexure-B associated with Continuous Miner, Model: 12CM27 for use in belowground coal mines for a period of five (05) years from the date of issue of this letter, subject to compliance with conditions stipulated in Annexure-A.

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

Your Faithfully,

(R SUBRAMANIAN)
Director General of Mine Safety - (Officiating)
Date : 25.02.2020

Enclosure: Annexue A & B. 

Annexure-A

Conditions for Approval under Regulation 208(3) of the Coal Mines Regulations, 2017, for Flameproof and Intrinsically safe electrical equipment as mentioned in Annexure-B associated with Continuous Miner, Model: 12CM27 manufactured by M/s. Joy Global (UK) Ltd., for use in belowground Coal Mines in India.

  1.  Every Continuous Miner, Model: 12CM27 manufactured by M/s. Joy Global (UK) Ltd., shall carry conspicuously in a permanent manner the aforesaid identification mark, i.e. “DGMS Approval No. E_75072/7 of 2020.

In addition, every machine shall also carry permanently this Directorate’s approval mark as below:

                     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. 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.

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

8.       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.

  1. .      The high pressure hydraulic hoses supplied with the machine shall conformed to the standards and parameters as prescribed in the DGMS/Mech/Tech.Cir (Approval) No. 04, Dhanabd, dated 13.02.2015.

10. The Fire Resistant Hydraulic Fluid supplied with the machine shall conform to the standards and parameters as prescribed in DGMS/Mech/Tech.Cir (Approval) No. 02, Dhanbad, dated 13.02.2015.

11.  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.

           12.  All covers, doors/access covers of the electrical equipment mounted on the equipment, on opening/removal which may expose live internal conductors, shall have warning instructions either by raised                     lettering or by other suitable means against such opening/removal of covers, doors and access covers, without isolating supply of energy to the equipment from its source.

  1. .     The plug and socket assembly affixed to the motors/panel, if provided, will be so interlocked as to prevent removal of plug from the socket while alive.   

14.  Spare parts shall be made readily available, as and when required for proper maintenance of the equipment. Any failure in the equipment shall be intimated to this Directorate.

15. All sensing devices shall be regularly tested and, routinely calibrated or verified to ensure correct operation and a record of the same shall be maintained.

        16. The associated items for which approval has been issued is exclusively for use as part of this equipment only and shall not be read as individual approval for those items.

             17. The electrical equipment and cables associated with the machine shall be checked by the Electrical Supervisor of the mine for their respective flameproofness of the equipment and condition of cables                in the beginning of each working shift and the findings thereof enter into a bound-paged book maintained for that purpose which shall be duly signed by the Electrical Supervisor with the date.

             18.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.

19.     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.

20.     The approval 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.

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

22.     The relevant provisions of the Central Electricity Authority (Measures relating to Safety and Electric Supply) Regulations, 2010 shall be complied with in all matter relating to the installation, operation and maintenance of the equipment.

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

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

25.     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.

26.     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 Flameproof and Intrinsically safe electrical equipment associated with Continuous Miner, Model: 12CM27 manufactured by M/s. Joy Global (UK) Ltd., for use in belowground Coal Mines in India.

 

S No.

Description

Manufacturer

Testing Laboratory

Test Report No. & Date

Standards

 

1.

Cutter Motor, 3 Phase, AC Induction motor, frame 20DB400J, rated at 210KW, 1050/1140 V, 50 HZ, 4 pole, 1465 RPM, water cooled.

Baldor

SIRA Certification Services, UK

IECEx SIR 10.0084X, dated: 05.07.2010

IEC 60079-0:2007;
IEC 60079-1:2007

2.

Pump Motor, 3 Phase, AC Induction motor, frame 9CB350J, rated at 55KW, 1050/1140V, 50 HZ, 4 pole, 1455/1465 RPM

Baldor

SIRA Certification Services, UK

IECEx SIR 10.0124X, dated: 26.10.2016

IEC 60079-0:2011;
IEC 60079-1:2014

3.

Gathering Head Motor, 3 Phase, AC Induction motor, frame 8CA350J, rated at 45KW, 1050/1140V, 50 HZ, 4 pole, 1365/1370 RPM

Baldor

SIRA Certification Services, UK

IECEx SIR 10.0124X, dated: 26.10.2016

IEC 60079-0:2011;
IEC 60079-1:2014

4.

Traction motor, 3 Phase, AC Induction motor, frame 10EB280J, rated at 60KW, 950V, 4 pole, 2210 RPM

Baldor

SIRA Certification Services, UK

IECEx SIR 10.0128X, dated: 17.08.2015

IEC 60079-0:2011;
IEC 60079-1:2014

5.

Fan motor, 3 Phase, AC Induction motor, frame X0326TCZ, rated at 26KW, 1050/1140V, 50 HZ, 4 pole, 2945/2960 RPM

Baldor

SIRA Certification Services, UK

IECEx SIR 13.0022X, dated: 12.02.2013

IEC 60079-0:2011;
IEC 60079-1:2007

6.

FLP/WP A40 range restrained of connectors (Plug, Socket, plug coupler) rated upto 350A,1300V

Victor

CIMFR, Dhanbad

CIMFR/TC/P/H474; Dated: 23.10.2013

IS/IEC 60079-0:2004;
IS/IEC 60079-1:2007;
IS/IEC 60529-2001

7.

Connection Box (Trailing Cable), Type MA001032-0005, rated at 1100V, 300A

Joy

CML, UK

IECEx CML 16.0003X; Dated: 06.01.2016

IEC 60079-0:2011;
IEC 60079-1:2014

8.

Main Controller Enclosure, 5000034094, rated upto 3300V, 200A

Joy

Ex testing and certification, Australia

IECEx ITA 10.0018X; Dated: 28.05.2018

IEC 60079-0:2017;
IEC 60079-1:2014-06 & IEC 60079-11:2011

9.

Display Unit, type jna2/dp/1.bat

Joy

Test safe, Australia

IECEx TSA 09.0018X; Dated: 30.11.2011

IEC 60079-0:2004;
IEC 60079-11:2006

10.

Traction Controller, type 5000014059, rated upto 3300V, 400A

Joy

TUV, Australia

IECEx ITA 11.0010X; Dated: 17.12.2013

IEC 60079-0:2007;
IEC 60079-1:2007

11.

Lens Assembly, type 5000010113

Joy

Test safe, Australia

IECEx TSA 12.0005U; Dated: 16.12.2016

IEC 60079-0:2011;
IEC 60079-1:2014

12.

Switch/Connection Box, 5000016252, max. rating 1250V, 10A (Start/Stop)

Joy

CML, UK

IECEx CML 16.0002; Dated: 27.04.2016

IEC 60079-0:2011;
IEC 60079-1:2014

13.

Switch/Connection Box, 5100002582, max. rating 240V, 50A (E-Stop)

Joy

TUV, Australia

IECEx ITA 10.0002X; Dated: 15.03.2017

IEC 60079-0:2011;
IEC 60079-1:2014

14.

FLP Enclosure, Type 5100016553, 120V RMS (Earth leakage)

Joy

SIRA Certification Services, UK

IECEx SIR 13.0066X, dated: 06.10.2014

IEC 60079-0:2011;
IEC 60079-1:2014;
 IEC 60079-11:2011

15.

Siren, Type HSHC, rated at 250V

Hytronic

MASC, SA

IECEx ICS 17.0003X, Dated: 24.11.2017

IEC 60079-0:2011;
IEC 60079-1:2014;
IEC 60079-11:2011

16.

Sensor enclosure type MA001042 – 0009, Inclinometer.

Joy

Test safe, Australia

IECEx TSA 07.0027X; Dated: 06.09.2016

IEC 60079-0:2011;
IEC 60079-1:2014

17.

LED Mining Luminaire, ML100, 12/24V

Victor

CIMFR, Dhanbad

CIMFR/TC/P/H552; Dated: 28.11.2013

IS/IEC 60079-0:2004;
IS/IEC 60079-1:2007;

18.

Ruggedised Mouse assembly type 5100020129, 5V, 1A

Joy

Test safe, Australia

IECEx TSA 15.0013X; Dated: 20.03.2015

IEC 60079-0:2011;
IEC 60079-1:2007

19.

Connection Box , Type 5000000788, 3300V,

Joy

CML, UK

IECEx CML 15.0086; Dated: 11.04.2016

IEC 60079-0:2011;
IEC 60079-1:2014

20.

Multi pin Connector, 5000012722, 120V

Joy

CIMFR, Dhanbad

CIMFR/TC/P/H757; Dated: 31.03.2015

IS/IEC 60079-0:2004;
IS/IEC 60079-1:2007;
IS/IEC 60529-2001

21.

IS Power supply, BBU TX6648, 7.5V/12V (Inside main Controller)

Trolex Ltd.

SIRA Certification Service, UK

SIRA 02ATEX 3418X Dated: August 2010

EN 60079-0:2006;
EN 60079-11:2007;

22.

Interface Relay TX6661, 8.5V/13V, housed inside main Controller

Trolex Ltd.

SIRA Certification Service, UK

SIRA 02ATEX3420X
Sira R70004760A
Dated: 22.05.2014

EN 60079-0:2012;
EN 60079-5:2007;
EN 60529-7:2007

23.

TX9042 Programmable Sensor Controller, 12VDC supply

Trolex Ltd.

CIMFR, Dhanbad

CIMFR/TC/P/H674; Dated: 10.01.2013

IS/IEC 60079-0:2004;
IS/IEC 60079-11: 2006; IS/IEC 60529-2001

24.

Methane Sensor, STX3261

Trolex Ltd.

CIMFR, Dhanbad

CIMFR/TC/P/H679; Dated: 10.01.2013

IS/IEC 60079-0:2004;
IS/IEC 60079-11: 2006; IS/IEC 60529-2001

25.

Audio Visual Alarm (AVA), TX6831

Trolex

ERTL, Kolkata

ERTL(E)/TES/T238/0064/11-12, Dated: 12.03.2013

IS/IEC 60079-0:2004;
IS/IEC 60079-11:2006

26.

 RS485 Communication Isolator, 14.4V

Joy

Test Safe, Australia

IECEx TSA05.0029X
Dated: 13.06.2013

IEC 60079-0:2004;
IEC 60079-11:2006;

27.

Pack, JNA, rated at 110V AC

MATRIC

ERTL, Kolkata

ERTL(E)/TES/J097/0004/08-16; Dated: 17.03.2017

IS/IEC 60079-0:2004;
IS/IEC 60079-11: 2006;

28.

Receiver, RX1, 9.6VDC, 3.1 A

Matric

CIMFR, Dhanbad

CIMFR/TC/P/H635; Dated: 26.12.2013

IS/IEC 60079-0:2004;
IS/IEC 60079-11: 2006; IS/IEC 60529-2001

29.

Transmitter-TX2,458.525 MHz

Matric

CIMFR, Dhanbad

CIMFR/TC/P/H660; Dated: 13.01.2014

IS/IEC 60079-0:2004;
IS/IEC 60079-11: 2006; IS/IEC 60529-2001

30.

GIO  controller, Supply 12V DC

Joy

SIRA Certification Service, UK

IECEx Sir 06.0046X, dated 05.05.2016

IEC 60079-0:2011;
IEC 60079-11:2011

31.

Electronic flow meter, Type 5050A, 15V

Conflow

ERTL, Kolkata

ERTL(E)/TES/C237/0009/10-14; Dated: 23.01.2015

IS/IEC 60079-0:2004;
IS/IEC 60079-11: 2006;

32.

PRESSURE Transducer, Type 5000045972, I/P 110VAC

Joy

International Testing And Certification Services, Australia

IECEx ITA 10.0014, dated: 10.08.2010

IEC 60079-0:2004;
IEC 60079-11:2006;

33.

Power Supply GIO, I/P supply 120VAC, O/P current 1.8A, type- ISSX1

K&H

Test safe, Australia

IECEx TSA 11.0002X dated 12.04.2011

IEC 60079-0:2004;
IEC 60079-11:2006

34.

Solenoid Valve, 5000013525, Rated at 126VDC, 16.9W

Joy

TUV, Australia

IECEX TRA 16.0009X; Dated 10.08.2016

IEC 60079-0:2011;
IEC 60079-1:2014

35.

Solenoid Valve enclosure, type 5000012582, 24VDC

Joy

Testsafe, Australia

IECEx TSA 07.0048X; Dated 03.05.2018

IEC 60079-0:2017;
IEC 60079-18:2014

36.

Operators switches, type 5100012773

Joy

Testsafe, Australia

IECEx TSA 05.0025U; Dated 17.05.2017

IEC 60079-0:2011;
IEC 60079-1:2014-06

               
 
(R SUBRAMANIAN)
Director General of Mine Safety - (Officiating)
Date : 25.02.2020
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