NO: E-29021|30567|2020|Electrical(HQ) Dhanbad, Date: 12/11/2020D
Chief Inspector of Mines &
Director General of Mines Safety
Directorate General of Mines Safety,
Dhanbad - 826 016.
Shri Debajit Sen – Director (Finance)
M/s. Marathon Electric Motors (India) Ltd.,
AEI Works, 1, Taratala Road, Kolkata – 700024.
Sub: Approval under Regulation 208 (3) of the Coal Mines Regulations, 2017 for Flameproof/Weatherproof Induction Motor rated at 250 KW, 3.3 KV, 3 Phase, 50 Hz, 4 Pole in frame size KF355 conforming to IS/IEC 60079-1:2007, IS/IEC 60079-0:2011 and IS/IEC 60034-5:2000 manufactured by M/s. Marathon Electric Motors (India) Ltd, Kolkata for use in belowground coal mines – Renewal thereof.
Please refer to your online application No. E-29021/30567/2020/Electrical (HQ) dated 04.09.2020, offline application MS/MOTOR/KF355/702 dated 22.07.2020 on the above subject and CIMFR test report Nos. CIMFR/TC/P/H92 dated 08.05.2014 & CIMFR/TC/S/H56 dated 26.06.2018, BIS License No. CM/L-5412755 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. 702 of 2015) granted vide this Directorate's letter No. 60/1718/EHQ dated 04.09.2015 for a further period of five years, i.e. up to 04.09.2025 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.