NO: E-29021|62324|2025|Electrical(HQ)

Dhanbad, Date: 11/06/2025

DGMS APPROVAL NO.-544 of 2006

From

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

To

YOGESH SURI, RANA SALES & SERVICE PVT LTD, PLOT NO 102, INDUSTRIA AREA, PHASE 1, PANCHKULA
Haryana, Panchkula, PANCHKULA, 134113

Sub:  Renewal Approval under Regulation 208 (3) of the Coal Mines Regulations, 2017 for Flameproof Resistance Box for Starting Slipring Motor, model no. RFRB 04 in mild steel construction designated by type air cooled, RV-600 V (max.), RA-80A (max.) resistance steps-7 to be fitted with slipring motor upto 250 KW, 550 V manufactured by M/s. Rana Sales & Service Pvt. Ltd., Panchkula conforming to IS/IEC 60079-1:2014 and IS/IEC 60079-0:2011 for use in belowground Coal Mines – Renewal thereof.

Dear Sir,

With reference to your online application No. E-29021|62324|2025|Electrical (HQ) dated 23/04/2025 on the above subject, and based on the test reports and documents submitted in this regard:

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, I hereby renew the approval (DGMS Approval No. 544 of 2006) granted vide this Directorate's letter No. 500/486/EHQ dated 20.04.2006 for a further period of five years, i.e. up to 11.06.2030 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.