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NO: E-29021|51123|2022|Electrical(HQ) Dhanbad, Date: 05.04.2022
DGMS APPROVAL NO.689 of 2014
From
Chief Inspector of Mines &
Director General of Mines Safety
Directorate General of Mines Safety,
P.O & Distt: Dhanbad - 826 001.
To
Mr. PRASENJIT MAITY, M/s. JOY GLOBAL (UK) LIMITED 4 SWANWICK COURT ALFRETON DERBYSHIRE - DE55 7AS
, ALFRETON, 0
Sub: DGMS approval No.689 of 2014 under Regulation 208(3) of the Coal Mines Regulations, 2017 for flameproof, weatherproof and intrinsically safe electrical equipment (as mentioned in Annexure-A) conforming to IS/IEC 60079-0 : 2017, IS/IEC 60079-1 : 2014, IS/IEC 60079-11 : 2011 associated with Quad bolter manufactured by M/s Joy Global (UK) Ltd.. for use in belowground coal mines in India – Renewal thereof.
Sir,
Please refer to your online application No. E-29021/51123/2022/Electrical (HQ) dated 08.02.2022 on the above subject & test report nos. as per Annexure-A 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. 689 of 2014) granted vide this Directorate's letter No. 483/1907/EHQ dated 31.12.2014 for a further period of two years, i.e. up to 31.12.2023 for use in belowground Coal Mines. The conditions mentioned in the original approval and subsequent renewal letters, if any, 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.
Your Faithfully,
(Prabhat Kumar)
Chief Inspector of Mines &
Director General of Mines Safety
Directorate General of Mines Safety, Dhanbad
Encl.: Annexure-A
ANNEXURE-A
Details of flameproof, weatherproof and intrinsically safe electrical and other equipments to be used with Quadbolter manufactured by M/s. Joy Global (UK) Ltd. vide DGMS approval no. 689 of 2014.
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Sl. No.
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Description of FLP/WP electrical equipment/cables
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Manufacturer (M/S)
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DGMS Approval no./Test Certificates No.
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1.
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Flameproof induction motor rated at 125 KW, 1050 V AC, 1480 rpm, 2 pole, 50 Hz, 3 phase in cast iron/steel construction, frame size-10EB440J & Model No. 600470-0033 conforming to IS/IEC 60079-1:2007 and IS/IEC 60079-0:2004
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Baldor Electric Company, Greenville, SC
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CIMFR/TC/P/H644 dated 31.12.2012
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2.
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Flameproof stop/start unit rated at 18 V, 0.25 A, mild steel, model SS1 conforming to IS/IEC 60079-1:2007 and IS/IEC 60079-0:2004
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Joy
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ERTL(E)/TES/J057/0074/11-12 dated 04.12.2012
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3.
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Traction controller TC-05 rated at 1100 V, 100 A, M.S., model No. TC-05
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Joy Mining Machinery Ltd.
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CIMFR/TC/SR/H442 dated 07.10.2013
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4.
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Flameproof connection/switch box rated at 240 V, 250 VA (max.), MS, model No. MA001012-0018 conforming to IS/IEC 60079-1:2007 and IS/IEC 60079-0:2004
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Joy
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ERTL(E)/TES/J057/0053/09-12 dated 10.10.2012
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5.
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Flameproof enclosure for cable reel rated at 1100 V, 300 A, in cast iron and steel construction conforming to IS/IEC 60079-1:2007 and IS/IEC 60079-0:2004
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Joy Mining Machinery Ltd.
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CIMFR/TC/P/H320 dated 26.07.2012
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6.
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Intrinsically Safe TX6626 power supply conforming to IS/IEC 60079-11:2006, IS/IEC 60529-2001 and IS/IEC 60079-0:2004
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Trolex Ltd., UK
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CIMFR/TC/P/H731 dated 06.02.2013
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7.
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Flameproof lighting fitting (Head Light) rated at 24 V DC, 6 W, 70 W cast iron, model No. FSR1 conforming to IS/IEC 60079-1:2007 and IS/IEC 60079-0:2004
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MEDC
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ERTL(E)/TES/J057/0054/09-12 dated 17.10.2012
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8.
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Intrinsically Safe TX9042 Programmable Sensor Controller conforming to IS/IEC 60079-11:2006, IS/IEC 60529-2001 and IS/IEC 60079-0:2004
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Trolex Ltd., UK
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CIMFR/TC/P/H674 dated 10.01.2013
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9.
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Intrinsically Safe STX3261 Methane Sensor conforming to IS/IEC 60079-11:2006, IS/IEC 60529-2001 and IS/IEC 60079-0:2004
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Trolex Ltd., UK
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CIMFR/TC/P/H679 dated 10.01.2013
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10.
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Flameproof restrained type plug and socket, model No. DV/R/PS-1 rated at 200 A, 550/1100 V, 3 phase, 50 Hz
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Mine Line Pvt. Ltd., Kolkata
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DGMS approval No. 298 Group-I of 1989
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11.
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Flameproof Siren rated at 24 V, model No. HSHC
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Hytronic
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ERTL(E)/TES/J057/0026/01-13 dated 05.03.2013
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12.
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Flexible multicore individually screened with pliable wire armouring elastomeric cable rated at 320/550 V, 8 A, 24x0.93 mm2, model N o. Protomont type 524 conforming to IS:14494-1998
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Prysmian
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DGMS approval No. 119 of 2012
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13.
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3 power cores each 25 mm2 and one 16 mm2 for the pilot core and one 16 mm2 for the earth core, 1100 V grade flexible cable type FT-10 all having semiconductive covering conforming to IS:14494-1998
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Prysmian
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DGMS approval No. 102 of 2007
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14.
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Type PLC2, PLC3, PLC4 & PLC5 cables with 4.0 mm2 power cores rated at 640/1100 V, galvanized steel wire pliable armour conforming to IS:14494-1998
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Prysmian
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DGMS approval No. 120 of 2012
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