NO: E-29021|61824|2024|Electrical(HQ)                                                                                                                                                                                                                                                     Dhanbad, Date: 26/04/2024

DGMS APPROVAL No. 749 of 2019

From,

Director General of Mines Safety
Directorate General of Mines Safety,
P.O & Distt: Dhanbad - 826 016.

To,

NANDINI CHAKRAVARTY, Mine Line Pvt. Ltd., 23, INDRANI PARK
West Bengal, KOLKATA, KOLKATA, 700033

Sub: Approval under Regulation 208 (3) of the Coal Mine Regulations, 2017 for Flame proof Bolted Plug and socket, Type  DV/B/PS-33 rated at up to 600 A and up to 3300V conforming to IS/IEC 60079-0:2017 and IS/IEC 60079-1:2014 manufactured by M/s- MINE LINE PVT.LTD (India), Kolkata for use in belowground Coal Mines – Renewal thereof

Ref. No-: Test report No- IN/CIMFR/TR20/R/H220 dated 16/11/2020

Madam,

Please refer to your online application No. E-29021/61824/2024/Electrical (HQ) dated 07/02/2024 on the above subject and test reports 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. 749 of 2019) granted vide this Directorate's letter No. 333/269/EHQ dated 15/03/2019 for a further period of two years, i.e. up to 15/03/2026 for use in belowground Coal Mines. The conditions mentioned in the original approval and subsequent renewal letters, if any, shall be strictly complied with and the test reports of all the electrical apparatus covered under approval, conforming to the latest testing standards, shall be submitted within three months, if not submitted before.

The application for renewal should be made at least three (03) months before the date of expiry of this approval.