Flameproof squirrel-cage induction motor 187 kW (Crompton Greaves)

WON/ Govecr,rnent of inci;a •uq•ectorate Gererel ot SafeE' No.

From /EHQ, Dhanbad/ dated -2017 Directorate Genera! of Mines Safety, P O & Distt: Dhanbad - 826 016.

To Shri Dilip Pawar - Dy. General Manager Yi/S CG Power and industriai Solutions Ltd.

A-6/2, MIDC Ahmednagar-414 111 (Maharashtra).

Sub:

Ref:

Renewal of DGMS approval No. 160 Group-I of 1978 under Regulation 181 (3) of the Coal Mines Regulations, 1957 for flameproof squirrel cage induction motor rated at 250 HP(187 K\N), 500/550 V, 3 phase, 50 Piz, 2830 RPM continuous duty in frame size E 315L manufactured by M/S Crompton Greaves Ltd., Ahmednagar conforming to IS/IEC 60079-0:2004 and IS/1EC60079-1:2007 for use in belowground Coal Mines.

ERTL test report No. dated 12.12.2012.

IDENTIFICATION MARK DGMS APPROVAL NOV 160 Group-I of 1978 Dear Sirs, Please refer to your letter Nos. LTM/DGMS/REN/2016-16/17 dated 07.02.2017 subsequent correspondence thereupon the above subject.

Based on DGMS approval No. 160 Group-I of 1978 issued by this Directorate's letter No. {3/77/863/EHQ dated 24061978, BIS Licence No. CM./L-0870053 and above test report under reference, I hereby cenevv Chie approvai upto 27.0402019 from the date of expiry ire. from 27,04.2017 for use in belowground Coal Mines, subject to compliance with conoicions scipujacea approvai as vveii as arjnexure encosed witn Linis i-enevva:

letter, The application for renewal should be made at least three (03) months before the date of expiry of the approval, Encl Annexure Yours faithfufiy, (Prasanta Kumar Sarkar)

Oicector General of Mines Safety acorc,vai No, 160 Group-I of 1.978 renewed b'/ this Directct-et€'s Cur reneY"Ei ci DCB'\S Nc. ILCC Group-i uncer Regulation lb-L (3)

c. the R'l:nes i%urticn til/ c zreaves t:

E/:zcscc-j: coal 1.

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(i) Every unit shall carry conspicuously in a permanent manner the aforesaid identification mark, i.e. 'DGMS APPROVAL NO, 160 Group-I of 1978 renewed vide letter No.

in addition, every unit shall also carry permanently this Directorate's approval mark as given below:

(ii) In the nameplate marking shall be in accordance with the applicable requirements of the relevant standaids.

(a)The design of the electrical circuit shall not be changed without obtaining prior approval from this Directorate.

(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 palis 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 ail live parts within the unit are made dead and safe.

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

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

(b) The customer shall also be provided a copy of factory test report along with drawings, instruction manual on the instailation, operation and rnaintenance of the equipment and spares parts catalogue at the time of delivery of the equipment The user shall furnish the performance report of the equipment directly to this Directorate after one (01) year of actuai use iii0Uificacion to cne equipment That might oe considere necessay at a later date Shail be effecteo upon being so directed by this Directorate An officer of this Directorate may at any time draw a sample either from the factory or from the user and get it tested at the cost of the manufacturer. If the test revorts are not satisfactory, this approval shah be deemed tc be suspended 10.

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there occurs any revisicn scanc;arcls dc the rnanufacturer• Sinai; get tne prcccct/ecuipment cescec; as ver cev:secj standards and subnit cest reports tc ccstcrrer For infcjmaticn and to this Directcr?te for further The cable entry devices, tnrzaoec., acapL-c.-s anc stopping be eauiornent be consicie,-ec} as c, fcr the specia; Lyoe of cable usea in - duiy cercifieo as pec relevara IS/IZC The renewal 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.

Ail circuiars/genecal approva:s issueo cy DGIMS from cime time, equipment shall also be complied with.

In case of aluminium die-cast rotor of the motor, the rotor shali not be dismantled, assembled or kept exposed in the explosive gassy atmospheres to prevent incendive sparking. A caution plate "Aluminium Die-Cast Rotor: Not to be dismant!ed, assembled or kept exposed in expiosive gas atmosphere" shall be provided at conspicuous place without affecting flameproof features of the motor, indicating that the moor is having motor shali also indicate the danger for aluminium die cast rotor due to incendive sparking.

In case of any permissible variations issued from this Directorate, they shall also be read along with this letter and the originai approvai letter.

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.

The approval is renewed upto 27.04.2019 from the date Qf expiry i.e. from 27.04.2017.

The equipment manufactured subsequently shall be identical to the proto type tested at ERTL vide test report dated 12.12.2012.

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

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

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 otter provisions of law which may be or may become applicable at any time Sarkar)

Director Genera! of Mines Safety