REPAIR MAINT OF HT OVERHEAD LINES AND UG CABLE AT AF STATION SURTGARH

Amount

BOQ (REPAIR/MAINT OF HT OVERHEAD LINES AND UG CABLE AT AF STATION SURTGARH)

Dismantling existing ACSR conductor of any size/type from PCC/Steel poles including taking down MS works such as cross arms, clamps, hooks, stay etc from overhead line ,complete all as specified and directed by Engineer-in-Charge.

Taking down existing unserviceable HT cable ,complete all as specified and directed by Engineer-in-Charge.

Dismantling cross arms of MS channel or angle sections etc ,complete all as specified and directed by Engineer-in-Charge.

Dismantling insulators any type and size from poles including for reuse or removal ,complete all as specified and directed by Engineer-in-Charge.

Dismantlingair break gang operated switch vertical/horizontal mounted including insulators and operating mechanism ,complete all as specified and directed by Engineer-in-Charge.

Excavation in trenches in soft/loose soil not exceeding 1.5 meter wide and not exceeding 1.5M in depth for laying of cables and getting out of excavated material ,complete all as specified and directed by Engineer-in-Charge

Returning, filling in, including spreading, leveling, watering and well ramming in layer not exceeding 25cm thick each complete all as specified and directed by Engineer-in-Charge

Removing excavated soil to a distance not exceeding 50 meter and depositing where directed at a level not exceeding 1.50 meter above the starting point complete all as specified and directed by Engineer-in-Charge

M&L for river bed fine sand in trenches/ ducts 15 cm under cable and 8 cm above the cable for cushioning/protection to cable including spreading, levelling and get 18cm thick after hand punning down, complete all as specified and directed by Engineer-in-Charge. Note: Punned down thickness (over all 18 cm) shall be measured & paid.

Supply and laying precast unreinforced Concrete cable covers Class HVP type-I flat of size 300mm x 180mm x 40 mm for HT cable ,complete all as specified and directed by Engineer-in-Charge.

Supply, laying and testing HT cable XLPE insulated, screened PVC bedded galvanised steel strip or wire armoured, electric power cables (Heavy duty) with stranded aluminium conductor, 11000 volts grade (earthed) cross sectional area 95 Sqmm 3 core, laid in trenches, through pipe in road crossing, ducts, fixed along poles ,complete all as specified and as directed by Engineer-in-Charge.

M&L for heat shrinkable type end termination joint kit indoor type suitable for XLPE insulated HT cable 11000 Volts grade of size 95 Sqmm 3 core complete with jointing material and acessories alongwith testing after jointing including taking out the old unserviceable joint kit ,complete all as specified and as directed by Engineer-in-Charge.

M&L for heat shrinkable type end termination joint kit outdoor type suitable for XLPE insulated HT cable 11000 Volts grade of size 95 Sqmm 3 core complete with jointing material and acessories alongwith testing after jointing including taking out the old unserviceable joint kit ,complete all as specified and as directed by Engineer-in-Charge.

M&L for heat shrinkable straight through joint kit suitable for XLPE insulated HT cable 11000 Volts grade of size 95 Sqmm 3 core complete with jointing material and acessories alongwith testing after jointing including taking out the old unserviceable joint kit ,complete all as specified and as directed by Engineer-in-Charge.

M&L for cross arms, bracing, support clamps and back plate fabricated out of structural steel sections including nuts, bolts and washers, welding, bending hot or cold, cutting, drilling holes for bolts in any shape or size as directed and including one coat of red oxide primer, one under coat and one finishing coat of aluminium paint paint ,complete all as specified and as directed by Engineer-in-Charge.

M&L for lightening arrestors expulsion type complete with all fittings, suitable for 11000 Volts grade transmission class, discharge capacity 65KA including brackets, clamps, nuts, washers and connecting to 4mm dia GI earth wire ,complete all as specified and as directed by Engineer-in-Charge.

Supply, fixing, testing and commissioning in replacement air break isolating switch tripple pole mechanically operated with vertical/Horizontal isolation, 12 insulators mounted on steel frame with operating mechanism worked from ground level and including operating rod of 25mm dia medium grade GI pipe and locking arrangement of capacity 400 Amps 11 KV with drop out fuse set including making all incoming/outgoing connection of HT cable and overhead conductor using new leads and nuts, bolts etc and painting of steel work with 2 coats of aluminium paint over a coat of red oxide primer, complete all as specified and directed.

M&L for danger notice plate of 1.6 mm thick mild steel sheet vitreous, enamelled white with letters, figures and conventional skull and bones in signal red colour and fixed with MS clamps made of 25x3mm MS flat, bolts and nuts of approved size for HT 25x20cm size ,complete all as specified and as directed by Engineer-in-Charge.

S&F galvanised iron tubing 100 mm dia light grade with all fitting laid under floor/road crossing or in trenches or fixed to pole /walls with clamps as required including sealing of pipe ends with approved sealing compound etc including taking down old Unserviceable GI Pipe,complete all as specified and as directed by Engineer-in-Charge.

M&L for ACSR conductor of any type/size on existing poles including fixing to insulators with binding wire or aluminium tapes ,complete all as specified and as directed by Engineer-in-Charge.

M&L for single disc type insulator porcelain vitreous11000 volts grade, 145mm high 255mm dia ball and socket type white or brown or green with tension clamps ,complete all as specified and as directed by Engineer-in-Charge.

M&L for pin type porcelain vitreous white or brown or green insulator including one galvanized mild steel spindle, two galvanised iron washers and one galvanised iron nut, 150mm height, 150mm dia for 11000 volts grade ,complete all as specified and as directed by Engineer-in-Charge.

Disconnecting the bindings of loose overhead conductor of HT lines from insulators and restringing the same for proper sag and rebinding with new aluminium binding wires at insulators, making all jumpers and inter connections of conductors at cut points as well as turnings using PG clamps of suitable size as per size of conductor for any type of conductor including restringing of continuous GI earth wire,complete all as specified and as directed by Engineer-in-Charge. Note :- (i) Trimming of tree branches upto 3 m all around the conductors is deemed to be included in the rates quoted. (ii) Three ACSR conductors and two GI earth wire will be measured as one unit length for payment. (iii) Cost of PG clamps, aluminium winding wire and eye hook for GI earth wire are included in the rates coated for restringing.

M&L for painting of steel tubular pole 11.0 m long, by applying two coat of aluminium paint after scraping/brushing and cleaning the rust on pole and cross arms. Aluminium painting will be done on pole above 1.5 m height from ground level and balance 1.5 m from ground level will be painted by alternate layer of red and white enammelled paint ( 30 cms each) pole No will be written on pole by black paint in yellow circle of 150 mm dia ,complete all as specified and as directed by Engineer-in-Charge.

M&L for Earthing complete with galvanised steel plate earth electrode 600X600X6mm thick buried directly in ground (earth pit not less than 2.25 meter below ground level) with top edge of the plate not less than 1.5 metre below normal ground level connected to GI strip 32x6mm at two points by means of bolts and nut, check nut and washers including charcoal dust, common salt, necessary excavation in hard/dense soil, returning filling in and removal of surplus soil to a distance up to 50metres, PCC pit in 1:3:6 type CI (using 20mm grade stone aggregate) RCC 1:2:4 type B-1 (using 20mm grade stone aggregate ) 50mm thick pit cover, reinforced with 8mm dia TMT bars 75mm c/c, both ways MS handle 12mm dia, GI funnel, wire mesh and GI watering pipe of 20mm bore GI (light grade) and earth lead protection pipe 40mm bore (light grade) ,complete all as specified and as directed by Engineer-in-Charge, directed and shown in electrical plate No 3 of SSR Part-I including testing complete. Note : GI strip and protection pipes 40 mm dia GI light grade pipe up to 7.5 metre is included in unit rate and beyond that the same will be measured separately.

Boring of holes under road, pavement, hard standing by trenchless technology using ultra sounding technique and necessary machine including HDPE pipe of 150 mm dia suitable for 0.4 mpa working pressure ,complete all as specified and as directed by Engineer-in-Charge.

Supply and fixing under/over voltage & neutral displacement relay suitable for 33KV panel as per existing make and capacity, complete all as specified and directed.

Testing anad calibration of realy (Set of two over current and one earth fault and one under voltage) by secondary injection of 33KV panel, complete all as specified and directed. Make:- CG/JVS/L&T

Disconnecting, opening of HT capacitor bank of any description of any Make rating 11 KV indoor capacitor switching panel and outdoor capacitor bank type with automatic/manual control having output 2400 KVAR (Step rating proposed: 400 KVAR x 2+800 KVAR x 2 desired 0.99) for servicing/ overhauling, taking out and removing unserviceable / defective parts including cleaning & servicing, greasing, oiling of the parts etc and replacement of unserviceable parts with new one, reassembling the HT Capacitor Bank after overhauling/ servicing and its testing complete all as specified and directed. Notes: (i) Replacement of unserviceable parts shall be measured and paid separately under appropriate item of BOQ' as supply only but fixing charges of the parts replaced /repaired is deemed to be included in this item. (ii) Servicing shall be got carried out by the authorised rep of the HT Capacitor Bank manufacturer and the service engineer will submit a service report for HT Capacitor Bank. (iii) Any item not included in CA and required for successful operation of the panel will be provided by the contractor & same shall deemed to be included rate quoted.

Supply only following items/spare parts suitable for 11 KV HT Capacitor Bank/Panel, 2400 KVAR capacity of any make and any description, dismantled/ fixed under Sch 'A' itmem No 29 here-in-before complete all as specified and directed.

Vaccum contactor three phase suitable for 11 KV, 10 KA, 400 KVAR complete all as specified and directed by Engineer-in-Charge.

Vaccum contactor three phase suitable for 11 KV, 10 KA, 800 KVAR complete all as specified and directed by Engineer-in-Charge.

HT HRC Fuse suitable for 11 KV, 400 KVAR complete all as specified and directed by Engineer-in-Charge.

HT HRC Fuse suitable for 11 KV, 800 KVAR complete all as specified and directed by Engineer-in-Charge.

Residual voltage transformer suitable for 11 KV/110 V-110V oil cooled 400 KVAR complete all as specified and directed by Engineer-in-Charge.

Residual voltage transformer suitable for 11 KV/110 V-110V oil cooled 800 KVAR complete all as specified and directed by Engineer-in-Charge.

NDVR Relay suitable for 400 KVAR step complete all as specified and directed by Engineer-in-Charge.

Contract Amount shall be derived after affecting the amount of Schedule of Credit in General Summary on serial page No 17 of tender documents.