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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_23706/7

NO: E-29021|108|2018|Electrical(HQ)                                                                                                                                 Dhanbad, Date: 29/07/2019

DGMS APPROVAL NO.- E_23706/7 of 2019

From

Director General of Mines Safety
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, United Kingdom.

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 Feeder Breaker, Model: UFB-14A-77-105C, 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_23706/7 of 2019

Dear Sir,

In reference to the field trial permission issued vide letter No. FT_E_1 dated 11.10.2018 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 Feeder Breaker, Model: UFB-14A-77-105C 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,

(Utpal Saha)
Director General of Mine Safety - (HQ)
Date : 29/07/2019

Annexure 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 Feeder Breaker, Model:  UFB-14A-77-105C, manufactured by M/s. Joy Global (UK) Ltd., for use in belowground Coal Mines in India.

  1. Every Feeder Breaker, Model: UFB-14A-77-105C 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_23706/7 of 2019.

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

  1. (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.
  2. 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.
  3. 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.
  4. 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.
  5. 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.
  6. 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.
  7. 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.
  8. 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.
  9. 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.

18. 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.

19.     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.

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

21.     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.

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

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

24.     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.

25.    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 Feeder Breaker, Model: UFB-14A-77-105C  manufactured by M/s. Joy Global (UK) Ltd. for use in belowground Coal Mines under Regulation 208(3) of the Coal Mines Regulations, 2017

S No.

Description

Manufacturer

Testing Laboratory

Test Report No. & Date

Standards

 

1

Breaker and Pump Motor, 3 Phase, AC Induction motor, frame size- 13EB440J, rated at 140KW, 1100 V, 50 HZ, 4 pole, 1490 RPM

Baldor

SIRA Certification Services, UK

IECEx SIR 09.0070, dated: 25.02.2014

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

2

Flameproof Traction controller, TC-05, 1050V

Joy

CIMFR, Dhanbad

CIMFR/TC/P/H442; Dated: 07.10.2013

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

3

Lens Assembly, type 5000010113

Joy

Test safe, Australia

IECEx TSA 12.0005U; Dated: 16.12.2016

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

4

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

5

FLP/WP A42 range restrained of connectors (Plug, Socket, plug coupler) rated upto 250A,1300V

Victor

CIMFR, Dhanbad

CIMFR/TC/P/H475; Dated: 23.11.2012

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

6

Siren, Model - HSHC,

Hytronic

MASC, SA

IECEx ICS 17.0003X; Dated: 24.11.2017

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

7

Connection/Switch Box, Type 5100002582, 240V, 50A, Emergency Stop

JOY

TUV, Australia

IECEx ITA 10.0002X; Dated: 15.03.2017

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

8

FLP/WP fluorescent Luminary, model 41LA, 250VAC, 58W

Victor

CIMFR, Dhanbad

CIMFR/TC/P/H634; Dated: 26.11.2013

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

9

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

10

Isolating Switch Amplifier, Type IM1-451-EX-R

Turck

TUV, Germany

IECEx TUN 06.0007X; Dated 22.07.2011

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

11

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

12

Operators switches, type 5100012773

Joy

Test safe, Australia

IECEx TSA 05.0025U; Dated 17.05.2017

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

13

Proximity sensor type sns/mfs

Joy

Test safe, Australia

IECEX TSA 08.0039X; Dated 17.11.2008

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

 

 
(Utpal Saha)
Director General of Mine Safety - (HQ)
Date : 29/07/2019
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