
NO: E-29021|20129|2018|Electrical(HQ)
Dhanbad, Date: 15/05/2018
DGMS APPROVAL NO.-E_65094/0
From
Director General of Mines Safety
Directorate General of Mines Safety,
P.O & Distt: Dhanbad - 826 016.
To
AJIT SINGH YADAV, ELECTRICAL EQUIPMENT CORPORATION, Plot No 314 Udyog Vihar Phase- VI, Sector-37, Gurgaon
Haryana, Gurgaon, Gurgaon, 122001
Sub: DGMS approval under Regulation ____ of the ____ for Flameproof/Weatherproof ____, designated by Type: ____ conforming to IS/IEC ____,IS/IEC:____ and IS/IEC ____manufactured by M/s. ____ for use in ____ mines.
Dear ir,
Please refer to you letter No. MMPL/DGMS/LCCM/16(05)-01 dated 04.05.2016 and subsequent correspondence thereupon the above subject.
Based on the test report as mentioned in Annexure-A, the flameproof and intrinsically safe electrical equipment associated with Continuous Miner Model: CMH-160 may be put on field trial in Jamadoba underground Colliery of M/s. Tata Steel, Jamadoba, Dhanbad subject to the following conditions:
- The installation, operation and maintenance of the above equipment shall be carried out under the direct supervision of the manufacturer and in accordance with the relevant provisions of the Central Electricity Authority (Measures relating to Safety and Electric Supply) Regulations, 2010.
- The duration of the field trial shall not be less than three (03) months. During this period, manufacturer shall maintain close rapport with the user & Director of Mines Safety (Elect.), Central Zone, Dhanbad so as to facilitate satisfactory field trial of the equipment.
- A copy of the instruction manual on the installation, maintenance and operation of the above equipment shall be handed over to the user.
- The user shall be supplied an extract of the conditions and maintenance schedule if any recommended by the concerned test house in their test reports so as to maintain the safety features of the apparatus as per their recommendations.
- The date of commencement of field trial at Jamadoba Colliery, Jamadoba shall be intimated to the Director of Mines Safety (Elect.) Central Zone, Dhanbad through Dy. Director General of Mines Safety, Central Zone, Dhanbad and to this Directorate immediately.
- Final approval of the equipment shall be considered only on receipt of satisfactory performance report from the user as well as the field officer of this Directorate.
- The status of health, integrity of protection, safety features and performance of the equipment/machinery shall be monitored by the manufacturer and the mine officials periodically. In the event of any failures of the equipment observed or any modifications carried out during field trial, the same shall be communicated to this office in writing by the manufacturer and Agent of the mine.
- Standard operating procedures (SOPs) shall be prepared for installation, operation & maintenance of all equipment associated with the Continuous Miner.
- While seeking final approval, valid BIS license in the case of Indian manufacturers and in case of foreign manufacturers, QAR/QAN for the associated flameproof / weatherproof / intrinsically safe apparatus as may be applicable shall be submitted and the same shall remain valid as long as the apparatus is manufactured and marketed.
- The cable entry devices, threaded adaptors and stopping plugs shall be suitable for the equipment and be considered as a part of equipment (not a component). The cable entry device and cabling methods used shall be suitable for their intended duty and for the special type of cable used in mining. Such cable entry devices shall be duly certified as per relevant IS/IEC standards.
- If there occurs any revision of standards applicable to the product/equipment , the manufacturer shall get the product/equipment tested as per revised standards and submit test reports to the customer for information and to this Directorate for further approval/renewal.
- The fire resistant hydraulic fluid used in the equipment shall comply shall comply with the standards and parameters as prescribed in the DGMS/Mech/Tech.Cir (Approval) No. 02, Dhanbad, dated 13.02.2015.
- The high pressure hydraulic hoses used with the equipment shall conform to the standards and parameters as prescribed in the DGMS/Mech/Tech.Cir (Approval) No. 04, Dhanabd, dated 13.02.2015.
- The cables connecting with Equipment shall conform to the provisions of the DGMS Tech. Circular (Electrical) No. 12 dated 25.05.2015 and corrigendum vide DGMS Tech. Circular (Electrical) Approval No. 01 dated 19.02.2016 in addition to the special requirement, if any, specifically for safe operation of the equipment.
- The general arrangement drawing of the equipment shall conform to the Drawing No. NGC LCCM-GI and the modifications on the Model CMH-160in particular, shall not be carried out without prior approval of this Directorate.
- The Audio Visual Alarm used in the machine shall conform to the standards and parameters as prescribed in the DGMS Tech. Circular (Electrical), Approval No. 21 dated 05.10.2015.
- The approval of the subject equipment is with regard to Ex standards mentioned herein. Other relevant standards applicable for assessment of its electrical parameters required under type test have not been taken into consideration.?
- All circulars/general approvals issued by DGMS from time to time, relevant to the equipment shall also be complied with.
The permission is issued exclusively for the purpose of field trial which is liable to be withdrawn/modified if considered so necessary and revoked, in case of any of the conditions subject to which this permission is issued, being violated or not complied with and is valid for one (01) year from the date of issue of this letter. If the process of field trial is not completed during this period, the issuing authority reserves the right to withdraw field trial permission.
Yours faithfully,
Sd/-
(Prasanta Kumar Sarkar)
Director General of Mines Safety
Annexure-A
List of flameproof and intrinsically safe electrical equipment associated with Low Capacity Continuous Miner Model: CMH-160 manufactured by M/s. China Transmission Heavy Equipment Co. Ltd., China for use in Jamadoba Colliery of M/s. Tata Steel Ltd., Jamadoba under Regulation 208(3) of the Coal Mines Regulations, 2017 issued by Directorate’s letter No………………..……./EHQ,
S NO.
|
Description
|
Manufacturer
|
Testing laboratory
|
Test report no. & date/ DGMS Approval No.
|
Standard to which the test is conducted
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1
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FLAME PROOF 3 PH CUTTER MOTOR – TYPE YBUS3-160; 1140 V, 160 KW, 3 PHASE, 4 POLE, 1471 RPM
|
FUSHUN COAL MINE MOTOR MANUFACTURING CO. LTD
|
CIMFR
|
CIMFR/TC/P/ H395
|
28-01-2016
|
IS/IEC 60079-0:2004, IS/IEC 60079-1:2007 IS/IEC 60529:2001
|
2
|
FLAME PROOF 3 PH ASYNCHRONUS OIL PUMP MOTOR – TYPE YBUS5-110(C); 1140 V, 110 KW, 3 PHASE, 4 POLE, 1482 RPM
|
FUSHUN COAL MINE MOTOR MANUFACTURING CO. LTD
|
CIMFR
|
CIMFR/TC/P/ H421
|
09-02-2016
|
IS/IEC 60079-0:2004, IS/IEC 60079-1:2007 IS/IEC 60529:2001
|
3
|
FLAME PROOF MONITOR BOX – TYPE XB24 ; 0.5A, 12W, 24 V DC
|
CHINA TRANSMISSION HEAVY EQUIPMENT CO.,LTD
|
CIMFR
|
CIMFR/TC/P/ H390
|
22-01-2016
|
IS/IEC 60079-0:2004, IS/IEC 60079-1:2007 IS/IEC 60529:2001
|
4
|
FLAME PROOF ELECTRICAL CONTROL BOX – TYPE KXJ-300/1140E; 1140 V, 197 A, 50Hz
|
CHINA TRANSMISSION HEAVY EQUIPMENT CO.,LTD
|
CIMFR
|
CIMFR/TC/P/ H396
|
28-01-2016
|
IS/IEC 60079-0:2004, IS/IEC 60079-1:2007 IS/IEC 60529:2001
|
5
|
FLP/WP ISOLATION DIRECTION CONTROL VALVE- TYPE DTBZ-37FYC; 0.5A, 18W, 24 V DC
|
NINGBO HOYEA MACHINERY MANUFACTURE CO.,LTD
|
CIMFR
|
CIMFR/TC/P/ H447
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24-02-2016
|
IS/IEC 60079-0:2004, IS/IEC 60079-1:2007 IS/IEC 60529:2001
|
6
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FLAMEPROOF TWIN SOLENOID ASSEMBLY- TYPE 01 EX05 053C yzyz; 10.8 W, 630 mA, 24 V DC
|
SCHIENLE MAGNETTECHNIK & ELCTRONIK GMBH
|
CIMFR
|
CIMFR/TC/P/ H445
|
23-02-2016
|
IS/IEC 60079-0:2004, IS/IEC 60079-1:2007 IS/IEC 60529:2001
|
7
|
RADIO REMOTE CONTROL TRANSMITTER - TYPE FYF35; Ui=4.5V, 434MHz, Transmitted Power 10mW
|
LIANLI AUTOMATION
|
ERTL(E)
|
ERTL(E)/TES/C280/0010/12-15
|
18-04-2016
|
IS/IEC 60079-0:2004&IS/IEC 60079-11:2006
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-:2:-
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S NO.
|
Description
|
Manufacturer
|
Testing laboratory
|
Test report no. & date/ DGMS Approval No.
|
Standard to which the test is conducted
|
8
|
IS ISOLATOR – TYPE KJU 20; Um= 20V, Im=5mA
|
LIANLI AUTOMATION
|
ERTL(E)
|
ERTL(E)/TES/C280/0008/12-15
|
10-03-2016
|
IS/IEC 60079-0:2004&IS/IEC 60079-11:2006
|
9
|
MINE USE IS ACCUMULATOR – TYPE DX 4.8; Po ≤1.5W, Uo= 4.5V
|
LIANLI AUTOMATION
|
ERTL(E)
|
ERTL(E)/TES/C280/0009/12-15
|
31-03-2016
|
IS/IEC 60079-0:2004&IS/IEC 60079-11:2006
|
10
|
FLAMEPROOF/WEATHERPROOF PUSH BUTTON SWITCH, TYPE: PB 330
|
SAFEX
|
CIMFR
|
CIMFR/TC/P/ H18 & DGMS App No. 474
|
12/04/2011
|
IS/IEC 60079-0:2004, IS/IEC 60079-1:2007 IS/IEC 60529:2001
|
11
|
FLAMEPROOF FLUID STATUS INDICATOR
IN CAST IRON CONSTRUCTION, TYPE: FSIS rated at 24 V
|
SAFEX
|
CIMFR
|
CIMFR/TC/P/ H129 & DGMS App No. 493
|
08/06/2011
|
IS/IEC 60079-11:2006,IS/IEC 60079-0:2004 AND IS/IEC 60529:2001
|
12
|
FLAMEPROOF/WEATHERPROOF HEAD & TAIL LAMP, TYPE: LF 03; 24/40 W, 24 V DC
|
SAFEX
|
CIMFR
|
CIMFR/TC/SR/ H78 & DGMS App No. 457
|
13/05/2011
|
IS/IEC 60079-11:2006,IS/IEC 60079-0:2004 AND IS/IEC 60529:2001
|
13
|
FLAMEPROOF/INTRINSICALLY SAFE POWER SUPPLY UNIT; Vi=
24 V AC, Vo= 12 V DC
|
SAFEX
|
CIMFR
|
CIMFR/TC/P/ H188, CIMFR/ TC/P/ H96 & DGMS App No. 332
|
20/06/2012
24/05/2011
|
IS/IEC 60079-11:2006,IS/IEC 60079-0:2004 AND IS/IEC 60529:2001
|
14
|
FLUID STATUS INDICATORS-SWITCH, TYPE: FSIS
|
SAFEX
|
CIMFR
|
CIMFR/TC/P/ 1244, CIMFR/ TC/P / H129 & DGMS App No. 493
|
08/06/2011
|
IS/IEC 60079-11:2006,IS/IEC 60079-0:2004
|
15
|
FLP TEMPERATURE SENSOR SWITCH, TYPE: FSIS
|
SAFEX
|
CIMFR
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CIMFR/TC/P/ 1244, CIMFR/ TC/P/ H129 & DGMS App No. 493
|
08/06/2011
|
IS/IEC 60079-11:2006,IS/IEC 60079-0:2004
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-:3:-
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S NO.
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Description
|
Manufacturer
|
Testing laboratory
|
Test report no. & date/ DGMS Approval No.
|
Standard to which the test is conducted
|
16
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THE FLAMEPROOF PLUG AND SOCKET; RATED 225 AMPS 1.1 KV; TYPE : PLG 225
|
SAFEX
|
CIMFR
|
CIMFR/TC/P/ H791
|
04/03/2014
|
IS/IEC 60079-0:2004, IS/IEC 60079-1:2007 IS/IEC 60529:2001
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17
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FLAMEPROOF/WEATHERPROOF FLUID PRESSURE SWITCH; TYPE : S1/FPS/01;
|
SAFEX
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CIMFR
|
CIMFR/TC/P/ H331
|
19/10/2011
|
IS/IEC 60079-0:2004, IS/IEC 60079-1:2007 IS/IEC 60529:2001
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18
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LMD TYPE: ULTIMA XE
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M/s MSA CO., USA
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-
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DGMS approval No. S66021/11/2009-Genl/ 3081 dated 11.09.2009
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-
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