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  • श्रम एवं रोजगार मंत्रालय
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  • खान सुरक्षा महानिदेशालय
  • DIRECTORATE GENERAL OF MINES SAFETY

Application

Approval Letter View

Approved No :- DGMS APPROVAL NO.- 663 of 2013

NO: E-29021|30621|2020|Electrical(HQ)                                                             Dhanbad, Date: 16/12/2020

From
Chief Inspector of Mines & 
Director General of Mines Safety
Directorate General of Mines Safety,
Dhanbad - 826 016.
 
To
Shri Songit Kumar Bagrodia - Director
M/s Cuprum Bagrodia Ltd.
23-C, Ashutosh Chowdhury Avenue, KCI Plaza,
3rd Floor, Kolkata – 700 019
 
Sub:    Approval under Regulation 208 (3) of the Coal Mines Regulations, 2017 Flameproof and Intrinsically safe electrical items (as mentioned in Annexure-I) associated with Bucyrus Highwall Miner Serial no. SHM 69 manufactured by M/s. Caterpillar Global Mining  LLC, USA for use in belowground Coal Mines in India in the name of the user M/s. Cuprum Bagrodia Ltd., Kolkata – Renewal thereof.
 
Sir,
 
Please refer to your online application No. E-29021/30621/2020/Electrical (HQ) dated 21.09.2020, offline application No. CBL:7011/HW:133 dated 24.08.2020 on the above subject and Test Reports as mentioned in Annexure-I 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. 663 of 2013) granted vide this Directorate's letter No. 530/1179/EHQ dated 25.06.2013 for a further period of two years, i.e. up to 25.06.2022 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 and intrinsically safe electrical equipment to be associated Bucyrus Highwall Miner manufactured by M/s. Caterpillar Global Mining Highwall Miners LLC, USA for use in belowground Coal Mines.
Sl. No.
Description of FLP electrical equipments
Manufacturer
Test report
IS/IEC standard
1.
FLP high voltage junction box, model no. 35904 rated 995 V AC, 600 A, steel (A 36) 
M/s. Mining Control Inc.
KLPL/ExIN/CBL/17-001
Dated 26.10.2017
ERTL(E)/TES/T246/0081/02-10 dated 15.06.2010
60079-0:2011
60079-1:2007
2.
FLP low voltage control box, model no. 35905 
M/s Mining Control Inc.
KLPL/ExIN/CBL/17-001
Dated 26.10.2017
ERTL(E)/TES/T246/0082/02-10 dated 15.06.2010
60079-0:2011
60079-1:2007
3.
FLP Navigation box, model no.35906 rated 24 VDC, 10 A, steel (A 36)
M/s Mining Control Inc.
KLPL/ExIN/CBL/17-001
26.10.2017
ERTL(E)/TES/T246/0083/02-10 dated 16.06.2010
60079-0:2011
60079-1:2007
4.
Flameproof induction motor, model no. P36G9602 rated 165 HP, 6 pole, 995 V, 50 Hz, 1180 RPM, water cooled. C.I. 
M/s Baldor Reliance
KLPL/ExIN/CBL/17-001
Dated 26.10.2017
ERTL(E)/TES/T246/0053/10-09 dated 20.12.2009
60079-0:2011
60079-1:2007
5.
FLP/IS power supply, model TX6620/6630 Series (12 Vdc) rated Um:250 VAC, Ui:230 VAC, Vo:14.4 VDC, Io:2.37 A
M/s Trolex Limited
KLPL/INSP/CBL-18/001
dated 10.08.2018
ERTL(E)/TES/T238/0045/05-08 dated 06.08.2008
60079-1:2007
60079-11:2006
6.
Trip Amplifier, model no. TX9131 rated input supply Ui=16.5 VDC, input signal (sensor)=4 to 20 mA 
M/s Trolex Limited
KLPL/INSP/CBL-18/001
dated 10.08.2018
ERTL(E)/TES/T238/00157/12-08 dated 16.03.2009 
60079-1:2007
60079-11:2006
7.
Flameproof Gas Sensor (CH4), model no. STX3261.01.11.240 rated input supply (max) Ui=14.4 VDC, signal output=0.4 VDC to 2 VDC 
M/s Trolex Limited
KLPL/INSP/CBL-18/001
dated 10.08.2018
ERTL(E)/TES/T238/00155
/12-08 dated 13.03.2009
 
60079-1:2007
60079-11:2006
8.
FLP hydraulic valve twin Solenoid assembly, model-01 EX05 053C YzYz, rated at 24 V, 1.33 A, M.S.
M/s Schienle
CIMFR/TC/SR/H400
dated 22..09.2014
60079-0:2004
60079-1:2007
 
 
(PRABHAT KUMAR)
Chief Inspector of Mines,
Directorate General of Mines Safety
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