SCOPE OF WORK (ELECTRICAL) - CIDCO Maharashtra Ltd.

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CIDCO OF MAHARASHTRA LTD C.A.No.03/CIDCO/EE(Elect)/2011-12 Sr. Page No. 7.3.6 Cable shall be laid in hume pipes at all road crossings and in GI pipes at the wall entries. 7.4 CABLE JOINTING : 7.4.1 Cable jointing shall be done as per the recommendations of the cable manufacturer. Jointing shall be done by qualified cable jointer. The location of the cable joint shall not be where the cable takes a bend also where the soil is loose and shows signs of subsidence. 7.5 CABLE TERMINATION : 7.5.1 All cable termination shall be done in cable end box provided in RMU, Transformer or any other H.T. equipment. 7.5.2 Cable terminations are to be made with cable heat shrinkable termination kits of specified approved make only. 7.5.3 Every connection at a cable termination shall be mechanically and electrically sound and protected against mechanical damage and any vibration liable to occur shall not impose any harmful mechanical damage to the cable conductor. 7.6 TESTING OF CABLE BEFORE LAYING AND COMMISSIONING : 7.6.1 All tests shall be carried out in accordance with relevant IS codes of practice, IE rules.
CIDCO OF MAHARASHTRA LTD C.A.No.03/CIDCO/EE(Elect)/2011-12 Sr. Page No. 7.6.2 100% cable drums shall be checked for continuity and cross continuity tests to ensure that there is no internal damage to the cable during transportation. 7.6.3 Installation resistance shall be measured with 1000 V megger between the cores and all the cores to earth (armour) and results shall be recorded. 7.6.4 Before cable jointing is done, cable shall be tested for presence of moisture by dipping a piece of insulation of cable in hot compound of paraffin was at temperature between 120 –140 degree centigrade. The presence of moisture is indicated by the formation of bubbles. Only a single strip of insulation gripped by a pair of tweezers should be used. 7.6.5 After the cables are installed before commissioning it shall be tested for high DC voltage test. The recommended volts and duration of the test shall be as per I.E. rules & regulations. However the test voltage and duration shall be in conformity with standards of local supply authorities. During high voltage tests all electrical equipments related to the cable installation must be earthed and adequate clearance shall be maintained from the other equipments and from work to prevent flash over. _______________________ _______________________ Stamp and signature of Contractor Addl. Chief Engineer (II) Date : Date :
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SCOPE OF WORK (ELECTRICAL) - CIDCO Maharashtra Ltd.

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