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  • भारत सरकार
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  • 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.- 321/86/524/EHQ dated 02.07.1986

NO: E-29021|30468|2020|Electrical(HQ)

Dhanbad, Date: 05/06/202026/06/2020

DGMS APPROVAL NO.- 321/86/524/EHQ dated 02.07.1986

From

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

To

Sub:-   DGMS approval no. 321/86/524/EHQ dated 02.07.1986 under Regulation 208(3) of the Coal Mines Regulations, 2017 for flameproof and intrinsically safe electrical  equipment (as mentioned in Annexure-B) to be associated with Side Discharge Loader-Low Height in Seam Loader, model-611 ISL  manufactured by M/s. Eimco Elecon (India) Ltd., Vallabh Vidyanagar for use in belowground Coal Mines – Renewal thereof.

IDENTIFICATION MARK

DGMS APPROVAL No.  321/86/524/EHQ dated 02.07.1986

 

Dear Sir,

Please refer to your online application No. E-29021/30468/2020/Electrial(HQ) and Letter No. EIM/ENGG/KT/1601/DGMS/1843 dated 13.02.2020 on the above mentioned subject.

Based on DGMS approval issued by this Directorate’s letter no. 321/86/524/EHQ dated 02.07.1986 for  flameproof and intrinsically safe electrical  equipment (as mentioned in Annexure-B) associated with  Side Discharge Loader-Low Height in Seam Loader, model-611 ISL manufactured by M/s. EIMCO ELECON (India) Ltd., I hereby renew the approval upto 15.05.2025 from the date of expiry i.e. from 15.05.2020 for use in belowground Coal Mines, subject to compliance with the conditions mentioned in Annexure-A.

 

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

                                                                                            

Your Faithfully,

(DINESH KUMAR SAHU)
Director General of Mine Safety - (Officiating)
Date : 05.06.2020

Enclosure: Annexure A & B> 


                                                    Annexure-A

 

Conditions for renewal of DGMS approval no. 321/86/524/EHQ dated 02.07.1986 under Regulation 208(3) of the Coal Mines Regulations, 2017 for flameproof and intrinsically safe electrical  equipment (as mentioned in Annexure-B) to be associated with Side Discharge Loader-Low Height in Seam Loader, model-611 ISL  manufactured by M/s. Eimco Elecon (India) Ltd., Vallabh Vidyanagar for use in belowground Coal Mines.

1.       Every Side Discharge Loader-Low Height in Seam Loader, model-611 ISL shall carry conspicuously in a permanent manner the aforesaid identification mark, i.e. “DGMS APPROVAL NO. 321/86/524/EHQ dated 02.07.1986 

       2   In addition, every machine shall also carry permanently this Directorate’s approval mark as below:

                                                                                                                              

          (b)Conspicuous warning inscriptions against opening the cover of the main enclosure or of any apparatus which gives access to the flameproof enclosures on live parts or which is designed to receive cable attachment unless the supply to the unit is isolated at source, shall be affixed permanently on the respective part to ensure that all live parts within the unit are made dead and safe.

3. Spare parts shall be made readily available to the user as and when required for proper maintenance of the equipment.

4.       (a) The customer shall be supplied the copy of this approval letter, the test report from the testing laboratory with the lab certified drawing , an extract of the condition & special conditions, maintenance schedule, if any, recommended by the testing laboratory in their test report(s) so as  to maintain safety features of apparatus/equipment.

          (b) The customer shall also be provided a copy of factory test report along with drawings, instruction manual on the installation, operation and maintenance of the equipment and spares parts catalogue at the time of delivery of the equipment.

  1. The user shall furnish the performance report of the equipment directly to this Directorate after one (01) year of actual use.
  1. Any modification to the equipment that might be considered necessary at a later date shall be effected upon being so directed by this Directorate.
  1. While seeking renewal of approval, valid BIS license in the case of Indian manufacturers and in case of foreign manufacturers, QAR/QAN, as may be applicable shall be submitted and the same shall remain valid as long as the apparatus is manufactured and marketed.
  1. 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.
  1. 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.
  1. 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.
  1.  All circulars/general approvals issued by DGMS from time to time, relevant to the equipment shall also be complied with.
  1. The user shall maintain coordination with the supplier/manufacturer to get themselves fully appraised of any difficulty with regard to the use, maintenance and operation of the equipment.
  1. Any replacement of part required for maintenance of the equipment which is directly or indirectly related to the flameproof features thereof shall be supplied by the manufacturer as and when required.
  1. The flameproof electrical equipment associated with the machine shall be checked by the Electrical Supervisor of the mine for their compliance as per standards.  The condition of cables in the machine shall be checked at the beginning of each working shift and the findings thereof entered in a bound-paged book maintained for that purpose shall be duly signed by the Electrical Supervisor with the date.
  1. Any failure in the equipment shall be intimated to this Directorate.
  1. In case of any permissible variations issued from this Directorate, they shall also be read along with this letter and the original approval letter.
  1. The relevant provisions of the Central Electricity Authority (Measures relating to Safety and Electric Supply) Regulations, 2010 shall be complied with in all matter relating to the installation, operation and maintenance of the equipment.
  1. The plug and socket assembly affixed to the motors/panel, if provided, will be so interlocked as to prevent withdraw of plug from the socket while alive.
  1. The fire resistant hydraulic fluid shall conform to the standards and parameters as prescribed in the DGMS/Mech/Tech.Cir (Approval) No. 02, Dhanbad, dated 13.02.2015.
  1. All covers, doors/access covers of the electrical equipment mounted on the machine, the opening removal of which may expose live internal conductors thereon shall have warning instructions either raised lettering or by other suitable means against such opening/removal or covers, doors and access covers without isolating supply of energy to the equipment from its source.
  1. 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.
  1. The cable reel drum if provided the cable shall be checked for damages/injuries at least once in each shift the Electrical Supervisor of the mine and the observations made thereof entered into a bound-page book which shall be duly signed by him and dated.  The cable shall not be used until such time as the same has been properly repaired.
  1. The users in consultation with the manufacturer, shall frame a code of practice for the control and guidance of persons employed for the installation, operation and maintenance of Side Discharge Loader-Low Height in Seam Loader, model-611 ISL and associated equipments, as well as for prevention of accident and to provide safety, health, convenience and discipline of persons so employed.  The code of practice duly approved by the concerned zonal office of this Directorate shall be strictly complied with.
  1. The high pressure hydraulic hoses supplied with the machine shall conforme to the standards and parameters as prescribed in the DGMS/Mech/Tech.Cir (Approval) No. 04, Dhanabd, dated 13.02.2015.
  1. The cables in Machine shall conform to requirement of provisions of the DGMS Tech. Circular (Electrical) No. 12 dated 25.05.2015 and DGMS Tech. Circular (Electrical) Approval No. 01 dated 19.02.2016 in addition to the special requirement, if any, specifically for the safe operation of the machine.
  1. The personnel who may be entrusted with the responsibility for the use, maintenance and operation of the machine shall be given adequate training for so much of the work may be enjoined on them.

27.     The approval is renewed upto 15.05.2025 from the date of expiry i.e. from 15.05.2020.

28.     At the time of applying for renewal, details of supply with name of mines, purchase order and date shall be furnished with the application.

29.     Any modification/alteration to the machine that might be considered necessary at a later date in the interest of safety or/and efficient handling, operation, maintenance and manoeuvrability of the machine shall be carried out upon being so directed.

30.     In case of aluminium die-cast rotor of the motor, the rotor shall not be dismantled, assembled or keep exposed in the atmosphere of explosive gases to prevent incendive sparking.

31.     If at any time any of the conditions subject to which this approval has been granted, is violated or not complied with, this approval shall be deemed to have been revoked with immediate effect.

32.     The above approval may be amended or withdrawn at any time, if considered so necessary in the interest of safety and is being issued without prejudice to any other provisions of law which may be or may become applicable at any time.

 

ANNEXURE-B

 

Details of flameproof and intrinsically safe electrical, cables and mechanical components to be associated with Side Discharge Loader-Low Height in Seam Loader, model-611 ISL manufactured by M/S EIMCO ELECON (India) Ltd., Vallabh Vidyanagar-388 120 (Gujarat)  vide DGMS approval no. 321/86/524/EHQ dated 02.07.1986.

Sr. No.

Description of the equipment

Name of Manufacturers

Test report and date

IEC standards as per test certificate

1

 

 

 

 

 

Flameproof Squirrel cage induction motor  in Frame Size E250M rated upto and including 75HP, 550V, 3Phase , 50Hz having 2 to 8 Poles with restrained FLP Plug and Socket or double compression cable gland on T.B.     

Crompton Greaves Ltd, Ahmednagar.

 

Or

Laxmi Hydraulics

Pvt. Ltd., Solapur

 

79 Group –I of 1974

 

 

559 of 2007

IS/IEC60079-0 :2011

IS/IEC60079-1: 2007

 

 

IS/IEC60079-0 :2011

IS/IEC60079-1: 2007

2

FLP Isolator Junction Box, Type JB-1

Mine line Kolkata

 

297 of 1989

IS/IEC60079-0:2004

IS/IEC60079-1:2007

FLP Lighting transformer up to max 500 VA

Mine line Kolkata

300 of 1989

IS/IEC60079-0:2004

IS/IEC60079-1:2007

3.

AVA and IS power supply type FLP/WP/AVA/24V/SDL

Electrical equipment Corportion

528 of 2005

IS/IEC 60079-0:2004, IS/IEC 60079-1:2007, IS/IEC 60079-11:2006 & IS: 60529-1989

4.

FLSS type Float Switch Assembly.

 

Eimco Elecon (I) Ltd,

CIMFR/TC/SR/1291 DT.21/12/2011

IS/IEC60079-0:2004

IS/IEC60079-1:2007

 

5.

FLSS type Temperature Switch Assy

 

Eimco Elecon (I)

CIMFR/TC/SR/1291 DT.21/12/2011

IS/IEC60079-0:2004

IS/IEC60079-1:2007

 

6.

FLSS type Limit Switch Assy. as called as dump valve switch. Change over switch ,Man in position switch,

Eimco Elecon (I) Ltd,

CIMFR/TC/SR/1290 DT.21/12/2011

IS/IEC60079-0:2004

IS/IEC60079-1:2007

7.

FLP /WP Push button station / J.Box Model EEEL 100

 

Eimco Elecon Electricals limited

ERTL(E)/TES/E248/0024/09-11 DT.21.09.2011

IS/IEC60079-0:2004

IS/IEC60079-1:2007

8.

FLP Power Distribution box-Model-PDB                    

                   

Eimco Elecon Electricals Ltd,

CIMFR/TC/P/ 1574 DT.27/03/2014

IS/IEC60079-0:2004

IS/IEC60079-1:2007

IS/IEC60529-2001

9.

FLP Cable Reel Model 250, 1100V

with Plug & Socket assy. rated up to 200 Amps.

Eimco Elecon (I) Ltd,

CIMFR/TC/P/ H-287

Dt. 01.08.2014

IS/IEC60079-0:2004

IS/IEC60079-1:2007

10.

FLP/WP Head Light type EEEL-HL-301

 

Eimco Elecon Electricals Limited (VV Nagar)

ERTL(E)/TES/E248/0023/09-11 DT.21.09.2011

IS/IEC60079-0:2004

IS/IEC60079-1:2007

 

 
(DINESH KUMAR SAHU)
Director General of Mine Safety - (Officiating)
Date : 05.06.2020
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