REPAIR MAINTENANCE OF EXTERNAL ELECTRIFICATION AND ALLIED WORKS AT JALAPAHAR UNDER AGE I DARJEELING

Amount

Supply, Laying & testing cable XLPE insulated screened PVC beded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminium conductor, 1100 volts grade, of size 4 core 25 Sqmm including taking down old unserviceable cable, complete all as specified and as directed by Engineer-in-charge.

Supply, Laying & testing cable XLPE insulated screened PVC beded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminium conductor, 1100 volts grade, of size 3.5 core 35 Sqmm including taking down old unserviceable cable, complete all as specified and as directed by Engineer-in-charge.

Supply, Laying & testing cable XLPE insulated screened PVC beded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminium conductor, 1100 volts grade, of size 3.5 core 50 Sqmm including taking down old unserviceable cable, complete all as specified and as directed by Engineer-in-charge.

Excavation in trenches n.exc 1.5m wide and n.exc 1.5 m in depth for foundation etc or for shafts, wells, cesspits, manholes, pier holes etc n.exc 10 sqm on plan and n.exc 1.5m in depth and getting out in soft/loose soil complete all as per specified and as directed by Engineer-in-charge.

Returning, filling in, including spreading, leveling, watering and well ramming in layers n exc 25cm complete all as per specified and as directed by Engineer-in-charge.

Removing excavated material not exc. 50 m & depositing where directed at a level not exc. 1.5 m above starting point complete all as per specified and as directed by Engineer-in-charge.

M&L for sand cushioning (dry) in trenches for protection of UG cables (below, above and around the cable laid in trenches) of 230mm spreding thickness and consolidated (punned) upto 180mm thickness, complete all as specified and as directed by Engineer-in-charge.

Supply & Laying of old size fly-ash bricks laid breadth wise along the length of cable laid in trenches over sand cushion laid for UG cable protection, complete all as specified and as directed by Engineer-in-charge.

S&F in repair of 40mm dia GI tubes (light grade) galvanised with fittings, laid in trenches/wall/pole for protection of underground cable when crossing the road/fixing, complete all as specified and as directed by Engineer-in-charge.

S&F in repair Vertical Three pole & neutral (VTPN) DB with sheet metal enclouser 415 volts, 4 way with rated bus bar, Double door, IP 54, IK 09 including incoming MCCB of Capacity 100 Amps, 25 KA, 4 pole, 415 Volt, complete all as specified and as directed by Engineer-in-charge.

S&F in repair MCB Single Pole of capacity 6-32 Amp, C Curve, 240 volts, 10KA, complete all as specified and as directed by Engineer-in-charge.

S&F in repair off-load Change over switch of capacity 100 Amps, 415 Volts, 4 Pole, fixing in wall type and making the good distrubed surface complete with all accessories, including taking down of old Unsv change over switch and reconnecting the cables with proper lugs, complete all as specified and as directed by Engineer-in-charge.

S&F in repair off-load Change over switch of capacity 125 Amps 415 Volts 4 Pole, fixing in wall type and making the good distrubed surface complete with all accessories, including taking down of old Unsv change over switch and reconnecting the cables with proper lugs, complete all as specified and as directed by Engineer-in-charge.

S&F in repair 4 Pole Power Contactor Conforms to IS / IEC 60947-4-1 & IEC 60947-4-1 Type MCX Rating 100 Amps, complete all as specified and as directed by Engineer-in-charge.

S&F in repair Front Mounting (2 NO + 2 NC) Contactor Block suitable for MNX-A2 Type, complete all as specified and as directed by Engineer-in-charge.

Supply and Fix in repairs MCB SPN 32 Amps 230 Volts 10KA fixing including DP sheet Metal enclosure, IK 08, in wall mounted type complete with all accessories, including taking down of old Unsv and reconnecting the cables with proper lugs, complete all as specified and as directed by Engineer-in-charge.

Supply and Fix in repair MCCB Metal enclosures, MCCB FP 100 Amps 415 Volts 25 KA including sheet Metal enclosure, in wall mounted type complete with all accessories, including taking down of old unserviceable main switch and reconnecting the cables, complete all as specified and as directed by Engineer-in-Charge.

Supply and Fix in repairs MCCB Metal enclosures, MCCB FP 63 Amps 415 Volts 16KA including sheet Metal enclosure, in wall mounted type complete with all accessories, including taking down of old unserviceable main switch and reconnecting the cables, complete all as specified and as directed by Engineer-in-Charge.

Supply and fixing in repair Copper Busbar chamber 200A, Triple pole & neutral with colour coding, 4 way, complete all as specified and as directed by Engineer-in-Charge.

Supply and fixing in repair Copper Busbar chamber 250A, Triple pole & neutral with colour coding, 4 way, complete all as specified and as directed by Engineer-in-Charge.

Supply and fixing in repair perforated type cable tray of size 100 mm width and 50mm height for protection of UG Cable of any size fixed to wall, ceiling, complete all as specified and as directed by Engineer-in-Charge.

Supply and fixing in repair perforated type cable tray of size 150 mm width and 50mm height for protection of UG Cable of any size fixed to wall, ceiling, complete all as specified and as directed by Engineer-in-Charge.

Supply and fixing in repair perforated type cable tray of size 200 mm width and 50mm height for protection of UG Cable of any size fixed to wall, ceiling, complete all as specified and as directed by Engineer-in-Charge.

Supply and fixing in repair UPVC Panel trunking FRLS of size 60 mm height and 45 mm width unique cover locking design prevents popping of wires and protection of UG Cable of any size fixed to wall, ceiling, complete all as specified and as directed by Engineer-in-Charge.

Supply and fixing in repair UPVC Panel trunking FRLS of size 60 mm height and 60 mm width unique cover locking design prevents popping of wires and protection of UG Cable of any size fixed to wall, ceiling, complete all as specified and as directed by Engineer-in-Charge.

Supply and fixing in repair flexible UPVC conduit pipe of size 40 mm dia for protection of UG Cable of any size fixed to wall, ceiling, complete all as specified and as directed by Engineer-in-Charge.

Supply and fixing in repair flexible UPVC conduit pipe of size 50 mm dia for protection of UG Cable of any size fixed to wall, ceiling, complete all as specified and as directed by Engineer-in-Charge.

M&L for earthing complete with galvanised steel earth plate electrode of size 600 mm x 600 mm x 6 mm thick buried directly in ground (earth pit not less than 2.25 mtr deep below normal ground level) with top edge of the plate not less than 1.5 mtr below ground level, connected to galvanized earth wire 4.00 mm dia by means of bolts nuts check nuts & washers of galvanized iron or steel , procteded by GI pipe 15 mm bore( light grade) and watering pipe 20 mm bore GI pipe (light grade) and chamber of pcc 1:4:8 type D2 using 40 mm graded stone aggregate and coping shall be in PCC 1:3:6 type C1 using 20mm graded stone agg. 50 mm thick cover of RCC 1:2:4 type B1 using 20 mm graded stone agg. reinforced with 8 mm dia MS tor bar @ 80 mm c/c both ways including excvation and earth work and removal of surplus soil complete all as shown in electrical plate No. 3 of SSR PT I, 1991 with charcoal dust and salt complete and earth lead connected to earthing test point (up to main switches, DBs) including taking down old unserviceable one, complete all as specified & testing on completion. NOTE:- (i) item includes the cost of 7.5 mtr length GI pipe for protection for GI earth wire. (ii) item rates includes the cost of 7.5 mtr earth lead GI earth wire. (iii) PCC pit shall be provided at least 500mm away from the pit and not on the earth pit itself and the extra cost of additional length of watering pipe,bends,elbow etc shall be deemed included in the unit rate.

M&L for earthing complete including necessary excavation and earth work in any type of soil with galvanized steel earth plate electrode size 60 cm x 60 cm x 6 mm thick buried directly in ground (earth pit not less than 2.25 mtrs below ground level) with top edge of the earth plate not less than 1.5 mtr below normal ground level connected to galvanised earth strip 32 x 6 mm by means of bolts nuts check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 of MES SSR Part-1 connected to main switch board or main control board all as specified and testing on completion including provision of earth wire protected by galvanised iron 40 mm dia. light grade pipe and watering pipe shall be 20 mm bore medium grade PCC pipt with pre cast RCC cover, charcoal/salt funnel etc. including taking down old unserviceable one complete all as specified and as directed by Engineer-in-charge. NOTE : (i)The concrete pit shall be PCC 1:3:6 tye C-1, 40 mm thick pre cast cover slab of RCC (1:2:4) type B-1 using 20 mm graded stone aggregate reinforced with 8 mm TMT bars @10 cm C/C on both sides with suitable cast iron handle shall be provided in liew of cast iron cover shown in electrical plate No. 3 of MES SSR Part-1 (ii) Item includes the cost of 7.5 m GI pipe for protection of earth strip. (iii) Item includes the cost of 7.5 mtr length earth strip.

Taking down UG cable from FPB, cutting worn out portion of LT cables of any type and size, carry out repairs and rejoining after dressing and re-alignment including saddles etc., complete all as specified and as directed by Engineer-in-Charge. Note :- (i) Cable protection Pipe will be measured and paid separately. (ii) Quoted rate is deemed to be inclusive of lugs/ sockets and cutting and removing and allied works (iii) Shut down program shall be taken in advance & record shall be kept. Note:- The contract sum shall be calculated by deducting the amount shown in Credit Schedule attached to this tender, from total amount of Schedule 'A'/BOQ.

Darjeeling Enterprises

M/S TSHERING BHUTIA

HIRA SINGH

SANJAY KAUSHIK

BIMAL BHATTRAI

Janata Enterprises

M/S S. S CHETTRI AND SONS