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  • भारत सरकार
  • GOVT. OF INDIA
  • श्रम एवं रोजगार मंत्रालय
  • MINISTRY OF LABOUR AND EMPLOYMENT
  • खान सुरक्षा महानिदेशालय
  • DIRECTORATE GENERAL OF MINES SAFETY

Application

Approval Letter View

Approved No :- DGMS APPROVAL NO.-E_65094/0

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:

  1. 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.
  2. 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.
  3. A copy of the instruction manual on the installation, maintenance and operation of the above equipment shall be handed over to the user.
  4. 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.
  5. 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.
  6. 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.
  7. 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.
  8. Standard operating procedures (SOPs) shall be prepared for installation, operation & maintenance of all equipment associated with the Continuous Miner.
  9. 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.
  10. 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.
  11. 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.
  12. 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.
  13. 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.
  14. 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.
  15. 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.
  16. 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.
  17. 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.?
  18. 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

1

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

24-02-2016

IS/IEC 60079-0:2004, IS/IEC 60079-1:2007 IS/IEC 60529:2001

6

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-:2:-

 

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

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

 

 

-:3:-

S NO.

Description

Manufacturer

Testing laboratory

Test report no. & date/ DGMS Approval No.

Standard to which the test is conducted

16

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

17

FLAMEPROOF/WEATHERPROOF FLUID PRESSURE SWITCH; TYPE : S1/FPS/01;

SAFEX

CIMFR

CIMFR/TC/P/ H331

19/10/2011

IS/IEC 60079-0:2004, IS/IEC 60079-1:2007 IS/IEC 60529:2001

18

LMD TYPE: ULTIMA XE

M/s MSA CO., USA

-

DGMS approval No. S66021/11/2009-Genl/ 3081 dated 11.09.2009

-

-

 

Your Faithfully,
(Prasanta Kumar Sarkar)
Director General of Mine Safety - Dhanbad (HQ)
Date : 15/05/2018
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