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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.- 4691/2020

NO: E-29021|20168|2018|Electrical(HQ)                                              Dhanbad, Date: 24/11/2020

DGMS APPROVAL NO.- 4691/2020
 
From
Chief Inspector of Mines & 
Director General of Mines Safety
Directorate General of Mines Safety,
Dhanbad - 826 016.
 
To                                                                                                     
Shri Shib Bhowmik - Country Head
M/s. Joy Global (UK) Ltd.,
4 Swanwick Court, Alfreton,
Derbyshire, DE55 7 AS,  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-II associated with Feeder Breaker, Model: UFB-17B-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.
 
Sir,
 
I, in exercise of powers conferred upon Chief Inspector of Mines (also designated as Director General of Mines Safety) under Regulation 208(3) of the Coal Mines Regulations, 2017 and in reference to Field Trial approval issued vide letter No. FT_E_5 dated 21.10.2019 and based on the performance report received from M/s. Eastern Coalfields Limited, hereby accord the approval (DGMS Approval No. 4691/2020) vide this Directorate's letter No. E-29021|20168|2018|Electrical(HQ)   dated 24/11/2020 for a period of five years, i.e. up to 24/11/2025 for use in belowground Coal Mines with the condition mentioned in Annexure-I. 
 
Please note that application for renewal should be made at least three (03) months before the date of expiry of the approval.
 
Your Faithfully,
(PRABHAT KUMAR)
Chief Inspector of Mines
Directorate General of Mines Safety
 
Enclosure: Annexure – I & II
Annexure-I
 
Conditions for Approval under Regulation 208(3) of the Coal Mines Regulations, 2017, Flameproof and Intrinsically safe electrical equipment as mentioned in Annexure-II associated with Feeder Breaker, Model: UFB-17B-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.
 
1. Every Feeder Breaker, Model: UFB-17B-77-105C shall carry conspicuously in a permanent manner the aforesaid identification mark i.e. “DGMS Approval No.4691/2020.
 
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, 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.
 
9.  The high pressure hydraulic hoses, if any, 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.
 
  1. . The Fire Resistant Hydraulic Fluid, if any, 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.   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.
 
12.  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.
 
13.  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.
 
14.  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.
 
15.  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.
 
16. 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.
 
17.  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.  All circulars/general approvals issued by DGMS from time to time, relevant to the equipment shall also be complied with.
 
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.  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.
 
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. General arrangment drawing shall conform to Drawing No. 5100022406 and electrical diagram No. 100895997.
 
23.  The approval is accorded for a period of five (05) years from, i.e. up to 24.11.2025.
 
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.  Any modification/alteration to the machine that might be considered necessary at a later date in the interest of safety or/and efficient handling, operation, maintenance and maneuverability of the machine shall be carried out upon being so directed
 
26. 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.\
 
27. 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-II
 
List of Flameproof and Intrinsically safe electrical equipment as mentioned in Annexure-I associated with Feeder Breaker, Model: UFB-17B-77-105C,  manufactured by M/s. Joy Global (UK) Ltd., for use in belowground Coal Mines.
 
Sl. No.
Description of electrical equipment
Manufa
cturer
Testing Laboratory
Test Report No. & Date
Standard to which the test is conducted
1
Breaker and Pump Motor, 3 Phase, AC Induction motor, frame 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
(GB/SIR/ExTR/14.0047/00)
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
Testsafe, 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
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
7
FLP/WP Mining Luminaire, Type ML102  Rated 120Vac 15W                                                                          (Area Lights)                                   
Victor
CIMFR, Dhanbad
CIMFR/TC/P/H126; Dated: 30.06.2015
IS/IEC 60079-0:2004;
IS/IEC 60079-1:2007;
IS/IEC 60529-2001
8
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
9
Isolating Switch Amplifier, Type IM1-4/3/2
Turck
TUV, Germany
IECEx TUN 06.0007X; Dated 22.07.2011
IEC 60079-0:2007;
IEC 60079-11:2006
10
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
11
Operators switches, type 5100012773
Joy
Testsafe, Australia
IECEx TSA 05.0025U; Dated 17.05.2017
IEC 60079-0:2011;
IEC 60079-1:2014
12
Proximity sensor type sns/mfs
Joy
Testsafe, Australia
IECEX TSA 08.0039X; Dated 17.11.2008
IEC 60079-0:2004;
IEC 60079-11:2006
13
Siren, Type HAFC, 9-50 V AC/DC
Audio Visual Alarm
Hytronic
MASC, SA
IECEx ICS 17.0003X; Dated: 22.07.2019
IEC 60079-0:2011;
IEC 60079-1:2014
IEC 60079-11:2011
14
Intrinsically safe Power Supply, type AC36W, 12V
Austdac
MSTC, Australia
IECEx MSC 13.0001X; Dated: 25.09.2017
IEC 60079-0:2011;
IEC 60079-18:2009
IEC 60079-11:2011
15
Opto Isolator, type DIX/Y, 30V Maximum
Joy
CML, UK
IECEx CML 19.0006X; Dated: 21.06.2019
IEC 60079-0:2017;
IEC 60079-11:2011
 
 
(PRABHAT KUMAR)
Chief Inspector of Mines
Directorate General of Mines Safety
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