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NO: E-29021|61729|2023|Electrical(HQ) Dhanbad, Date: 16.02.2024
DGMS APPROVAL NO.-125 Group-I of 1976
From
Director General of Mines Safety
Directorate General of Mines Safety,
P.O & Distt: Dhanbad - 826 016.
To
RAMESH KUMAR N, CG Power and Industrial Solutions Limited, A-6/2 MIDC INDUSTRIAL AREA, AHMEDNAGAR 414111
Maharashtra, AHMEDNAGAR, AHMEDNAGAR, 414111
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Sub: Approval No. 125 Group-I of 1976 under Regulation 208 (3) of the Coal Mines Regulations, 2017 for Flameproof squirrel cage induction motor rated at 150 HP, 500/550 V, 3 phase, 50 HZ, 1475 RPM in frame size- E315 M conforming to IS/IEC 60079-1:2014, IS/IEC 60079-0:2017 manufactured by M/s- Crompton Greaves Ltd, Ahmednagar for use in belowground Coal Mines – Permissible variation thereof.
Dear Sir,
Please refer to your online application No. 61729 dated 20.11.2023 and letter No.LTM/DGMS/REN/2023-24/127V dated 20.11.2023 on the above subject & test reports and other documents submitted therewith in this regard.
The matter has been examined and based on the ERTL test report No. ERTL(E)/TES/C299/0022/08-22/NABL dated 27.09.2022, the following permissible variation is allowed without affecting flameproof features of the above apparatus subject to fulfilment of the conditions stipulated in DGMS approval No. 125 Group-I of 1976.
| Pole |
Voltage upto |
Max. output KW |
| 2 |
690 V |
132 |
| 4 |
690 V |
132 |
| 6 |
690 V |
90 |
| 8 |
690 V |
75 |
This letter shall always be accompanied by any previous letters for inclusion of permissible variations and the Directorate’s approval and renewal thereof.
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Yours Sincerely,
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