REPAIR/ MAINT OF TRANSFORMER/HT OVERHEAD LINE, LIGHTING ARRESTORS, INSULATORS, HT UG CABLES AND ALLIED WORKS AT FAIZABAD

Amount

Excavation in trenches n.exc 1.5m wide and n.exc. 1.5m deep and getting out in soft/loose soil for laying UG cable complete all as specified and directed.

All as per Ser item No. 1 here-in-beore but exceeding 1.5m in depth and not exceeding 3m in depth.

Returning, filling in with the earth obtained from item No.01 here-in-before including spreading, levelling, watering and well ramming in layers not exceeding 25 cm thick complete all as specified and directed.

Removal of surplus excavated soil to a distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5 m above the starting point complete all as specified and directed.

M&L for sand cushioning in trenches for protection of under ground cable provided in layers of sand 8cm deep before laying the cable and 15cm deep after the cable(Punned down to 18 cm) complete all as specified and directed. (Note:- Punned thickness as 18 cm shall be measured and paid)

Supply and laying un-reinforced precast concrete cable cover 'factory made' of class HPV, type 1 with peak of size 300mmx180mmx40mm complete all as specified and directed by Engineer-in-Charge.

M&L for cement concrete 1:4:8 type D-2 using 40mm graded stone aggregate as in foundations, filling, sub base of floor and mass concrete complete all as specified and directed.

M&L for PCC 1:2:4 type B-1 using 20mm graded stone aggregate as in coping of poles including necessary form work complete all as specified and directed.

M&L for steel tubular swaged pole complete with mild steel base plate 30 x30cm x6mm thick,finial taper plug,bolts,nuts,screws as per IS-2713 (Part-II) 1980 made out of mild steel tubing complete type 410SP-55(11.0 m long) including painting with two coats of aluminium paint over one coat of red oxide primer on exposed portion and with two coats of bituminous paint on embedded portion in concrete including markingnumber on pole including dismantling existing u/s pole and the following :- (a) Excavation in soft/loose soil including returning filling and removal of surplus soil to a distance not exceeding 50m. (b) PCC 1:3:6 type C-2 using 40mm graded stone aggregate as in foundation of size 600x600x1800mm. (c) Poviding PCC 1:3:6 type C-2 (using 40mm graded stone aggregate) for plinth block/collar above GL,300mm high and 450mmdia including form work complete all as specified and directed.

S&F in replacement disc type insulator, porcelain, vitreous, white brown or green, 145mm high, and 225 mm dia ball and socket type single disc assembly for tension with tension clamps for conductors, working pressure 11000 volts grade complete. Make Pactil/Rastriya/Jaipuria

S&F in replacement post insulator porcelain , vitreous, white, brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, suitable for working pressure 11000 Volts grade complete. Make:-Pactil/ Rastriya/Jaipuria

Supply and replacement for pin type insulator with GI pin, porcelain, vitreous, white brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, 150mm height and 150mm dia suitable for working pressure 11000 volts grade, complete all as specified and directed.

Supply & laying steel tubing, galvanized light grade for passing GI strip/Control cable under road or PCC floor or fixed on wall/on pole or drain etc or whenever protection is required including necessary clamps and nut bolts with GI fitting complete all as specified and directed as following :-

(a) GI pipe 100mm dia.

(b) GI pipe 80mm dia.

M&L for re-stringing of existing aluminium conductor, steel reinforced (ACSR) of any size on HT poles including aluminium binding wire with connectors, PVC sleeves for jumpers etc complete all as specified and directed.

Hiring of cable fault detector, to detect exact position of fault for XLPE/PVC HT cable, 11000 volts grade heavy duty aluminium conductor of any size complete all as specified and directed by Engineer-in-Charge

M&L for horizontal boring under roads/soft/loose soil of any width by manual arrangements for inserting GI pipe upto 100mm bore for laying UG cable complete all as specified and directed.

Supplying, laying, commissioning & testing HT underground 95 Sqmm 3 core cable 11 KV grade (E), XLPE insulated, PVC sheathed heavy duty, steel strip or wire armoured with multi stranded aluminium conductor all as per IS 7098 (Part-I) 1998, laid in trenches, ducts, pipes or on poles, etc including taking out old unseviceable cable, protection pipe/bricks or precast concrete cable cover complete all as specified and directed by Engr-in-Charge.

Supplying, laying, commissioning & testing HT underground 120 Sqmm 3 core cable 11 KV grade (E), XLPE insulated, PVC sheathed heavy duty, steel strip or wire armoured with multi stranded aluminium conductor all as per IS 7098 (Part-I) 1998, laid in trenches, ducts, pipes or on poles, etc including taking out old unseviceable cable, protection pipe/bricks or precast concrete cable cover complete all as specified and directed.

Supply and fixing in replacement cable jointing kit for 11 KV (earthed) grade cable for cable end termination indoor type cold shrinkable joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 Sqmm, complete all as specified and directed.

Supply and fixing in replacement cable jointing kit for 11 KV ( Earthed grade cable for cable end termination outdoor type cold shrinkable joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 Sqmm, complete all as specified and directed.

S&F in replacement cable jointing kit for 11 KV (Earthed) grade cable for straight through cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm. complete all as specified and directed.

S&F in replacement cable jointing kit for 11 KV (Earthed) grade cable for indoor type end termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm. complete all as specified and directed.

S&F in replacement cable jointing kit for 11 KV (Earthed) grade cable for outdoor type end termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm. complete all as specified and directed.

S&F in replacement cable jointing kit for 11 KV (Earthed) grade cable for straight through cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm. complete all as specified and directed.

M&L for earthing complete with galvanised steel earth plate electrode 600x600x6 mm thick buried directly in ground (earth pit not less than 2.25m deep below GL with top edge of plate not less than 1.50 m below normal ground level) connected to galavanised earth lead strip 32mm x 6 mm (7.5m) as means of bolts, nuts, check nuts and washer besides brazing at all joints as shown on drawings and including excavation, earth work, GI pipe (ISImark) light grade 40mm bore for protection of GI strip from earth electrode to and including the earth test point, supplying and laying charcoal dust, common salt, PCC 1:3:6, type C-1(using 20 mm graded crushed stone aggregate ) chamber and mild steel angle iron frame 40 x 40 x 3 mm and 40 mm thick pre-cast RCC cover 1:2:4 , type B-1(using 20 mm graded crushed stone aggregate ) reinforced with 8 mm dia TMT bars @ 75 mm C/C both ways with mild steel handle 12 mm dia, PGI funnel and wire mesh, 20 mm dia GI pipe light grade(ISI marked) for watering all as shown in electrical plate No 3 of SSR Part-I and connected to earth test point including complete all as specified and directed. (Note:- The rates quoted shall also deemed to include the cost of Earth test point and earth strip and protection pipe upto 7.5 meter beyond the earth plates electrode)

M&L for earth continuity conductor or main earthing lead fixed to walls or to poles or any other indicated situation for loop earthing with 32mm x6mm aluminium strip complete all as specified and as directed.

Supply, installation, testing & commissioning of Gang operated air break switch with drop out fuse unit complete with insulator set, HT 11 KV triple pole, 200 amps capacity current rating complete with drop out fibre glass tube fuse, mechanically operated mechanism from ground level consisting of operating rod of 25 mm bore medium grade GI pipe of suitable length with locking arrengment, flat iron clamp 50mm x 6mm including MS channel MC 100 of suitable length for fixing GOD including bolts, nuts and washers incl jumper connection with copper flexible designed jumper complete all as specified and directed. Make : Jaipuria or equivelant of other approved make as approved by GE.

Taking out and repairing/overhauling of 11 KV air break gang operated switch tripple pole, mechanically operated mounted on insulators and steel frame installed vertically / horizontally, repairing defective copper strap, knife rod, movable post, insulator 200 amps capacity, ON/OFF handle, replacement of broken/worn-out components, oiling and greasing of mechanical moving parts, smoothing and polishing of electric contacts with providing conducting jelly of contacts refixed the same after repair complete all as directed (Note:- New spare parts replaced against wornout spare parts shall be measured and paid separately as supply only under respective item of this Sch 'A')

M&L for lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amps suitable for 11000 volts complete all as specified and directed.

Labour for cutting/trimming of tree branches upto 80mm thickness along the alignment of LT/HT over head electric line which are going/touching on falling or ACSR conductor/poles or near by sub stations etc at any height from GL and making clearance 1.5m from conductor and removing to a distance upto 100 m where directed by Enginee-in-Charge. Note:- (i) Trimming of the branches on one sides of the contractor. (ii) Actual length of effcected conductors where cutting trimming carried out will be measured as one lenght only in RM for all conductors. (iii) The distance as mentioned above will be maintained during contract current period & same location subject to at least 6 months period between two trimming/leaping. (iv) Measurement will be taken including all conductor as one only.

Preparation of old painted surface of steel tubular swaged poles (9 to 11 meter long) with good neck brackets including junction box GI pipe and painting with one coat of aluminium paint including cleaning the acrylic cover and painting with black paint upto 1.5 mtr height from top of PCC coping and marking pole numbers with one coat of synthetic enamel paint complete all as specified and directed. Make :- Shalimar/Nerolac/Berger.

S&F in replacement in position of following items for transformer including welding, brazing etc. complete all as specified and directed by Engineer-in-Charge :-

GM gate valve 25mm dia with 150mm long nipple of GI.

GM gate valve 40mm dia with 150mm long nipple of GI.

Breather assembly transparent type filled with silica get suitable for transformer of capacity up to 200 KVA.

Breather assembly transparent type filled with silica get suitable for transformer of capacity 250 KVA 630 KVA.

Temperature gauge 100mm dia with dual calibration in degree celsius and Fahrenheit range 0 to 100° C and equivalent degree Fahrenheit.

Glass gauge for Oil level indicator suitable for transformer upto 630 KVA capacity.

M&L for on line Dehydration of HV/EHV grade transformer oil including filteration using automatic centrifuging machine minimum three cycles to achieve dielectric strength not less than 50 KV breaking capacity at 2.5mm gap by absorbing and abolishing all sludge particles as per BS-66-1963 including topping up with new transformer oil as required complete all as specified & directed. Note :- (i) Centrifuging Machine with all T&P & testing machine of oil required for dehydration shall be arrange by contractor. (ii) Oil required for topping up the transformer will be measured & paid separately as supply only under respective item of this Sch.

Supply only new transformer oil for transformer. Note :- Sealed container only will be brought at site with minimum BDV 45 KV complete all as specified and directed. Make : Transol, Power, Savita.

Disconnecting all the electric connections from HT and LT side incl earthing terminals from the transformers and taking down transformer from plinth by using crane and transfer to workshop for repair and after repair reinstall at existing location including testing of 11/33 KV capacity complete all as specified and directed by Engineer-in-Charge.

M&L for dismantling top cover after disconnecting LT cable & earthing strips of transformer of capacity upto 630 KVA including replacing/repairing of unserviceable parts comprising the following complete and drain out the oil for inspection, servcing of transformer chamber. Refitting top cover including replacement of gasket, nuts, bolts & washers, reconnecting LT cable and earthing strips by means of new nuts, washer, gland, lugs etc and charging the transformer on load complete all as specified and directed by Engineer-in-Charge. Note :- (i) Contractor shall make his own arrangement for centrifuging plant at each transformer site for centrifuging of transformer oil. (ii) Transformer oil for topping will be measured and paid separately as supply only. (iii) Cost of centrifuging will be measured and paid separately. (iv) Cost of new nut, washer, gasket, glands, lugs of existing size etc shall be included in the quoted rate. (v) New spare parts replaced in this item will be measurement and paid separately as supply only under respective item of this Sch 'A'.

Supply only following spare parts suitable for transformer upto 630 KVA :-

HV bushing with terminal rod

LV bushing

Filter valve

Arching horn

M&L for rewinding of burnt HV/LV coil of transformer with DPC enamelled copper wire/strip of existing size & guage incl insulating material complete all as specified and directed .

M&L for rewinding of burnt HV/LV coil of transformer with DPC enamelled aluminium wire/strip of existing size & guage incl insulating material complete all as specified and directed .

M&L for painting of the transformer of following capacity with one coat of first quality heat resistant paint by spraying gun after preparation of old steel surfaces including writing SM/MES numbers complte all as specified and directed.

Transformer of capacity upto 160 KVA

Transformer of capacity 250 KVA to 630 KVA.

Khan Brothers

Super Automobiles

M/S NATIONAL ELECTRIC WORKS

Hindustan Power Corporation