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NO: E-29021|40928|2021|Electrical(HQ) Dhanbad, Date: 27.08.2021
DGMS APPROVAL NO.- 639 of 2012
From
Chief Inspector of Mines Cum
Director General of Mines Safety
Directorate General of Mines Safety,
P.O & Distt: Dhanbad - 826 016.
To
AYUSH AGARWALA, PRABHU SWITCHGEAR PVT. LTD., 1 TARPAN GHAT ROAD
West Bengal, KOLKATA, KOLKATA, 700053
Sub: Approval under regualation 208(3) of the Coal Mines Regulations, 2017 for flameproof enclosure for Transwitch Unit rated upto 1000 KVA, primary voltage upto 3.3 KV, secondary voltage at 1140 V in MS/CI construction, type no. FLP TX-02 conforming to IS/IEC 60079-0:2011 and IS/IEC 60079-1:2014 manufactured by M/s. Prabhu Switchgear Pvt. Ltd., Kolkata for use in belowground Coal Mines-Renewal thereof.
Sir,
Please refer to your online application No.E-29021|40928|2021|Electrical(HQ) dated 14.07.2021, offline application No.PSPL/263/2020-21 dated 10.03.2021 on the above subject and CIMFR Test & Assessment Report No. : IN/CIMFR/TR20/796 dated 11.03.2020 , BIS License No. CM/L- 5227760 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. 639 of 2012) granted vide this Directorate's letter No. 484/1053/EHQ dated 26.04.2012 for a further period of five years, i.e. up to 26.04.2026 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.
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