Tender For Special Repair/Replacement Of Oh Ht/Lt Cable With Ug Ht/Lt Cable At Smq Area At Af Stn Digaru; 1 Excavation in trenches in soft/loose soil not exceeding 1.5 metre wide and not exceeding 1.5m in depth for laying of HT under ground cables, complete all as specified and directed. 2 Returning, filling in, including spreading, watering and well ramming in layers not exc 25cm thick in layers, complete all as specified and directed. 3 Removal of surplus soil to a distance not exceeding 50 metre and depositing where directed at a level not exceeding 1.5 metre above the starting point, complete all as specified and directed. 4 M&L for sand coushioning to trenches/ existing cable trenches for cushioning of HT underground cable including spreading, levelling, well ramming in layers not) exceeding 25cm in thickness, complete all as specified and directed. 5 Supply and laying well burnt sub class B old size bricks, laid flat dryin trenches with width of the bricks laid to the axis of cable for cable protection complete all as specified and as directed. 6 Supply and laying un-reinforced precast concrete cable cover, laid flat, dry laid perpendicular to the length of underground cable in trenches for cable protection complete of class HV type 1, flat of size 300mm x 180mm x 40mm complete all as specified and directed by Engineer in Charge. 7 Dismantling of Over head aluminium conductor steel reinforced, complete all as specified and directed. 8 Dismantling of cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, complete all as specified and directed. 9 Supply, laying testing cable XLPE insulated, screened PVC bedded, galvanised steel strip or wire armoured electric power cables (heavy duty) with aluminium conductor 11000 volts grade (Earthed) of size 185 sqmm 3 core complete all as specified and directed. 10 Supply, laying testing cable XLPE insulated, screened PVC bedded, galvanised steel strip or wire armoured electric power cables (heavy duty) with aluminium conductor 1100 volts grade with stranded aluminium conductor of size 35 sqmm 3.5 core complete all as specified and directed. 11 Supply, laying testing cable XLPE insulated, screened PVC bedded, galvanized steel strip or wire armoured electric power cables (heavy duty) with aluminium conductor 1100 volts grade with stranded aluminium conductor of size 25 sqmm 4 core complete all as specified and directed. 12 Supply, laying testing cable XLPE insulated, screened PVC bedded, galvanised steel strip or wire armoured electric power cables (heavy duty) with aluminium conductor 1100 volts grade with stranded aluminium conductor of size 16 sqmm 4 core complete all as specified and directed. 13 Supply joining and testing cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination, heat shrink type joint complete with and including jointing materials and accessories suitable for 11kV XLPE insulated armoured aluminium cable of size 185 Sqmm 3 core, complete all as specified and as directed. 14 Supply and fixing GI tubing light grade 80mm bore for protection of cable, under road crossing, across drain, along electric pole or floor/ wall etc, complete all as specified and directed. 15 Boring/Drilling (horizontally) manually not exceeding 2m deep in soil below existing road suitable for passing GI/MS tubing of 80 to 200 mm bore, complete all as specified and directed. 16 M & L for HT Cable route indicator with a welded/riveted disc of 4 inch dia and engraved with cable with cable route marker made out of angle iron 40 x 40 x 4 mm thick dug in ground within and incl PCC 1:3:6 type C1 foundation of size 45(H)X15(W)X15(L) using 20mm graded aggregate at approx distance every 10 mtr the same item errection at site including necessary earth work complete all as specified and directed by Engr-in-Charge. 17 Supply, install, commissioning and testing LT feeder pillar box of size 1.5 x 1.5 x 0.50 mtr, outdoor with slopping canopy at top, manufactured by a CPRI approved factory, self supporting structure and compartmentalized type, dust & weather proof, protection IP 65, front and rear operated double door with necessary locking arrangement made of 50x50X6mm angle iron frame, with four legs grouted to PCC (1:2:4) type B1 MS angle iron frame work and CRCA sheet of 3.15 mm thick duly phosphating process and treatment of panel with anti-corrosive zinc based primer paint and finally powder coating the panel, after seven tank treatment process both internally and externally. The panel shall be suitable for 415 Volts, 50 HZ, 3 Phase, 4 wire system and shall be complete with suitable capacity 400 Amp copper bus bar (1.5 times the incoming switch gear current rating) with suitable size of PVC insulated copper conductor, thimbles, glands and complete wiring arrangement suitable to equipped complete with earthing terminals comprising of the following accessories and including taking out old unsv panel.(A) IN COMING(a) MCCB four pole 415 Volts AC Supply 250 Amp, open execution, thermal magnetic release type, breaking capacity 25 KA - 01 Nos.(b) Digital Voltage Meter (0-415 Volts), Ammeter with CTs and selector switch (0-250 Amps) and frequency - 01 No(c) RYB LED indicating lamp panel mounting type (Set of three) -01 No.(B) OUT GOING(a) MCCB 4 Pole 415 Volts, 160 Amp, 25 KA rating, open execution, thermal magnetic release type-01 Nos.(b) MCCB 4 Pole 415 Volts, 100 Amp, 25 KA rating, open execution, thermal magnetic release type-01 Nos.(c) MCCB 4 Pole 415 Volts, 63 Amp, 16 KA rating, open execution, thermal magnetic release type-02 Nos.(d) MCB SPN 6-32 A, 240 volts, C curve, 10 KA rating thermal magnetic release type-03 Nos.(e) Digital Ammeter with CTs of suitable rating - 04 Nos 18 Supply and fixing of MCB SPN DB, 8 way made of sheet steel phosphatised, powder painted with 200Amps rated bus bar, neutral link, earth bar and Din rail, 230 Volts with Double door, fixed in repairs complete all as specified. 19 Supply, fixing, connection and testing MCB SPN 240 Volts, ‘C’ series, breaking capacity 10kA of rating 6-32 Amps. 20 Supply, fixing, connection and testing MCB SP 240 Volts, ‘C’ series, breaking capacity 10kA of rating 6-32 Amps. 21 M&L earthing complete with galvanised steel earth plate electrode of size 600 x 600 x 6 mm thick buried directly in ground in vertical position (earth pit not less than 2.25 m deep below the normal ground level) with top edge of the earth plate not less than 1.5m below normal ground level, connected to galvanised earth lead of GI strip 32x6 mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel, all as shown in electrical plate No. 3 connected to earthing test point and including dismantling complete all as specified and directed.Note :- The unit rate shall also include for earth work in any type of soil, PCC 1:3:6 type C1 chamber, RCC 1:1.5:3, type A1 cover slab, 50mm thick reinforced with 8mm dia TMT bar @ 140mm C/C both ways, 10mm dia plain bar lifting handle embedded in cover slab, 20 mm bore medium grade Gl watering pipe, 15mm bore GI light grade earth lead protection pipe, funnel, wire mesh, copper lugs, charcoal and common salt in alternate layer etc. 22 Earthing complete with galvanised steel earth plate electrode 60cm x60cm x6mm thick buried directly in ground earth pit not less than 2.25 mtr deep below normal ground level ) with top edge of plate not less than 1.5m below ground level, connecting to the Galvanised iron earth lead wire 4.0 mm dia, by means of nuts, bolts, check nuts and washer etc of galvanised iron and earth lead protected by provision of Gl pipe light grade 32mm bore light grade from earthing test point or main controlling switch as directed including providing funnel with 20mm bore GI pipe light grade, wire mesh, charcoal or coke and common salt in alternative layer of 15 cm (compacted thickness) all round the earth electrode, concrete earth pit in PCC (1:2:4) type B-1 using 20mm graded stone aggregates with 50mm thick cover of RCC (1:2:4) (re-inforced with 8mm dia TMT bar @15 cm C/C both ways and MS bar handle made of 10mm dia bar) including necessary earth work in excavation, returning in and removal of surplus soil to a distance not exceeding 50mtr, all as per electrical plate No 3 of MES Schedule Part-l including earthing pit cover etc. complete all as specified & directed.
