In case of control cables all cores shall be identified at both ends by their terminal numbers by means of PVC ferrules for core size. Wire numbers shall be as per schematic wiring/inter-connection diagram. All unused spare cores of control cables shall be nearly bunched and ferruled with cable tag at both ends, for future use. All spare cores shall be terminated in TB. Contractor shall drill holes for fixing glands wherever necessary. Gland plate shall be of used wherever more number of cables are terminated. Gland plate shall be of non-magnetic material/aluminium sheet in case of single core cables. All unused cable entries on equipment/panels shall be plugged or sealed. The cable shall be terminated at electrical equipment/switchboard through glands of proper size. Before energising, the insulation resistance of every circuit shall be measured from phase to phase, phase to neutral and from phase/neutral to earth. The approximate cable length requirements are listed in below mentioned table. Control wiring: The control wiring shall be armored with minimum copper conductor size of 1.5 sq. mm of XLPE/PVC insulation, voltage grade 650V/1100V as per IS: 1554/7098. The control wiring shall consist of following: Master Emergency OFF at Control room shall be hardwired with IMCC MCCB trip circuit. RVD ON/OFF local push button station at RVD room. iMCC to Control room The control cable requirements to meet various interfacing field elements are specified below. The details are indicative and vender shall meet extra cable requirements in case of requirement. Cable scedule Cable type Anticipated Length Armoured XLPE insulated 3 ½ C 1 PCC to IMCC (Incomer) 25 m 95Sq.mm copper cable Armoured XLPE insulated 3 ½ C 2 IMCC to RVD motor 25 m 50Sq.mm copper cable IMCC to Vacuum Pump, at Armoured XLPE insulated 3 ½ C 3 25 m Service room. 25Sq.mm copper cable IMCC to Water pump, at Armoured XLPE insulated 3 ½ C 4 25 m Service room. 16Sq.mm copper cable Control room to iMCC Armoured control cable 12 pair 5 100 m (Emergency off) 1.5sq.mm copper cable
In case of control cables all cores shall be identified at both ends by their terminal numbers by means of PVC ferrules for core size. Wire numbers shall be as per schematic wiring/inter-connection diagram. All unused spare cores of control cables shall be nearly bunched and ferruled with cable tag at both ends, for future use. All spare cores shall be terminated in TB. Contractor shall drill holes for fixing glands wherever necessary. Gland plate shall be of used wherever more number of cables are terminated. Gland plate shall be of non-magnetic material/aluminium sheet in case of single core cables. All unused cable entries on equipment/panels shall be plugged or sealed. The cable shall be terminated at electrical equipment/switchboard through glands of proper size. Before energising, the insulation resistance of every circuit shall be measured from phase to phase, phase to neutral and from phase/neutral to earth. The approximate cable length requirements are listed in below mentioned table. Control wiring: The control wiring shall be armored with minimum copper conductor size of 1.5 sq. mm of XLPE/PVC insulation, voltage grade 650V/1100V as per IS: 1554/7098. The control wiring shall consist of following: Master Emergency OFF at Control room shall be hardwired with IMCC MCCB trip circuit. RVD ON/OFF local push button station at RVD room. iMCC to Control room The control cable requirements to meet various interfacing field elements are specified below. The details are indicative and vender shall meet extra cable requirements in case of requirement. Cable scedule Cable type Anticipated Length 1 PCC to IMCC (Incomer) Armoured XLPE insulated 3 ½ C 95Sq.mm copper cable 25 m 2 IMCC to RVD motor Armoured XLPE insulated 3 ½ C 50Sq.mm copper cable 25 m 3 IMCC to Vacuum Pump, at Service room. Armoured XLPE insulated 3 ½ C 25Sq.mm copper cable 25 m 4 IMCC to Water pump, at Service room. Armoured XLPE insulated 3 ½ C 16Sq.mm copper cable 25 m 5 Control room to iMCC (Emergency off) Armoured control cable 12 pair 1.5sq.mm copper cable 100 m