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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.- 667 of 2013

NO: E-29021|30650|2020|Electrical(HQ)                                                      Dhanbad, Date: 15/12/2020

From
Chief Inspector of Mines & 
Director General of Mines Safety
Directorate General of Mines Safety,
Dhanbad - 826 016.
 
To
Mrs. Nandini Chakravarty - Managing Director
M/s. Mine Line Pvt. Ltd.
23, Indrani Park, Kolkata-700 033.
 
Sub:    Approval under Regulation 208 (3) of the Coal Mines Regulations, 2017 for flameproof  3.3 KV/1.1 KV, upto 2 MVA Transwitch unit with primary current 600 A and multiple outlets on the secondary side associated with other flameproof electrical equipment as mentioned in Annexure-I manufactured by M/s. Mine Line Pvt. Ltd., Kolkata for use in belowground Coal Mines – Renewal thereof.
 
Madam,
 
Please refer to your online application No. E-29021/30650/2020/Electrical (HQ) dated 09.11.2020, offline application No. M20/DGMS/68 dated 19.10.2020 on the above subject and CIMFR/ERTL Test Reports as mentioned in Annexure-I, BIS License No. CM/L- 0893166 and other documents submitted therewith in this regard. 
 
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, hereby renew the approval (DGMS Approval No. 667 of 2013) granted vide this Directorate's letter No. 333/1955/EHQ dated 20.12.2013 for a further period of five years, i.e. up to 20.12.2025 for use in belowground Coal Mines.  The conditions mentioned in the original approval and subsequent renewal letters shall be strictly complied with. 
 
Please note that application for renewal should be made at least three (03) months before the date of expiry of the approval.
 
Yours Faithfully,
 
(PRABHAT KUMAR)
Chief Inspector of Mines,
Directorate General of Mines Safety
 
Enclosure: Annexure-I.
 
                                                                                                                                                     Annexure - I
 
List of flameproof electrical equipment to be used with flameproof 3.3 KV/1.1 KV, upto 2 MVA Transwitch unit with primary current 600 A and multiple outlets on the secondary side manufactured by M/s. Mine Line Pvt. Ltd., Kolkata in belowground coal mines.
 
Sl. No.
Description of FLP electrical equipment/cables
CIMFR Test Certificate No.
DGMS Approval No.
IS/IEC standard
1.
HT VCB & Isolator in FLP enclosure type : EX630 BV
IN/CIMFR/TR20/H145 dated 08.10.2020.
448 of 1996
60079-0:2011
60079-1:2014
2.
FLP tap changing / trunking chamber designated by type No. TRCC-2
IN/CIMFR/TR20/H93 daed 28.08.2020
667 of 2013
60079-0:2011
60079-1:2014
3.
FLP coupler & adopter upto 3.3 KV & upto 600 A, type No. R31 & R32
CIMFR/TC/SR/H699 dated 02.03.2012
69 of 1995
60079-1:2007
60079-0:2004
4.
FLP transformer tank, designated by type No. 2350
IN/CIMFR/TR20/H81 dated 20.08.2020
458 of 1999
60079-0:2011
60079-1:2014
5.
FLP restrained type plug & socket upto 1.1 KV, designated by type No. DV/R/PS-1
IN/CIMFR/TR20/H85 dated 26.08.2020
298 of 1989
 
60079-0:2011
60079-1:2014
6.
FLP LT Chamber / Power House with control protection type-Power House rated at 3.3 KV
IN/CIMFR/TR20/H86 dated 26.08.2020
667 of 2013
60079-0:2011
60079-1:2014
 
 
(PRABHAT KUMAR)
Chief Inspector of Mines,
Directorate General of Mines Safety
 
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