CA NO GE(U)/CHM-43/2026-27 PROVN OF EXTERNAL ELECTRIC SUPPLY FOR PORTA CABIN OF JUNIOR WING APS AND PROVN OF GENERATOR SET 20 KVA FOR COMMAND CLINIC AT MIL STN CHANDIMANDIR

Supply, laying and testing of XLPE cable insulated, screend, PVC bedded, galvanised steel strip or wire armoured,electrical power cable(heavy duty) 1100 Volt grade with stranded aluminium conductor of size 70 Sqmm, 3.5 core, Aluminium, armoured complete all as specified and directed by engr-in-charge.

Design, Fabricate, supply, installation and testing of outdoor type cubicle panel board bus bar box with MCCB suitable for 3 phase 4 wire, 50 Hz supply system factory fabricated made out of CRCA sheet steel of 3mm thick for outer shell and 2mm thick for inner shell with front openable door with locking arrangement complete with powder coat painting and suitable packing material for IP-54 degree of protection and including provision of 40mmx40mmx5mm angle iron base frame of suitable size for mounting the panel board at a height of 450mm above GL and 300 mm grouted in PCC foundation. The size of panel board shall not be less than 500mm x 500mm x 300mm (outer dimensions) for accommodating and provision of following switchgears complete:-

(i) TPN Aluminium bus bar 240 Amps 4 strips provided with heat shrinkable coloured PVC sleeve insulation mounted on insulators suitable for connecting 2 or 3 outgoing cables including provision suitable glands. (ii) MCCB, 160 A, 4 Pole, 36 KA (Ics=100%Icu), 415 V, 50 Hz, with adjustable thermal & fixed magnetic release - 01 No Note:- (i)Drawing for LT Panel shall be approved by GE before placement of order by contactor.

M&L for earthing complete with galvanized iron earth plate electrode 600mm x 600mm x 6 mm thick buried directly in ground (earth pit not less than 2.25 meters deep below ground level) with top edge of the plate not less than 1.5 meters below normal ground level connecting to GI strip 32 mm x 6 mm as earthing lead by means of bolts, nuts, check nuts and washers of galvanized iron or steel and earth wire protected by 50mm dia GI pipe medium grade earth plate surrounded by alternate layer of coal dust and common salt 15 cm thik each layer all as per electrical plate and connected to pole structure/ panel board/earthing test point all as shown in electrical plate No. 3 of SSR Part-I(2009) and testing on completion complete all as specified and directed. Note :- The unit rate quoted shall also include for excavation, earth work in any type of soil, plain cement concrete 1:3:6 mix, Type C1 pit, 40mm thick RCC 1:2:4 mix type B1 cover reinforced with 8mm dia TMT bras @ 150mm C/C both ways, GI funnel with watering pipe 20 mm dia medium grade, wire mesh, protection pipe, earth strip up to 7.50m long.

M&L sand cushioning for underground cable 8 cm below and 15 cm above the cable with clean dry river sand in trenches including spreading, levelling etc. complete all as specified and directed Note:Punned thickness shall only will be measured for the purpose of payment

Supply and laying reinforced precast concrete cable cover class LV type-1 flat, size 250mmx150mmx40mm as protection to LT cable complete all as specified and as directed.

Supplying, laying, jointing and testing of LT underground electric cable XLPE insulated, PVC sheathed, armoured heavy duty 1100 volts grade cross section area 35 Sqmm 3.5 Core aluminium conductor laid in trenches/ducts or passing through pipes under road including provn of lugs, glands, nuts, bolts & washers etc for connecting in LT Panel / AMF Panel/ DG Set and testing on completion complete all as specified and as directed by engineer-in-charge.