REPAIR MAINT OF TRANSFORMER HV LV SIDE HT CABLE AND CONNECTED ACCESSORIES AT TECH AREA AT 7 BRD UNDER GE (AF) TUGHLAKABAD

Amount

M & L HT 11 KV for under ground (high tension) cable fault finding for exact location by using HT fault locating equipment and trace out the fault complete all as specified and directed Note :- The rate quoted by the contractor shall include the rate for excavating the cable at the fault location & pinpoint the fault, repairing the cable using cable jointing kits and by adding extra HT cable if required at site, jointing the cables as before to the panel and testing complete all as earth work and necessary T&P etc.

Painting of transformer after cleaning the body surface of transformer by rubbing with emery Paper to remove oil stains, dust etc and applying one coat of snthetic enamel paint by spray painting the capacity of transformer are as under:-

(a) 60 KVA to 400 KVA

(b) 500 to 1000 KVA

Dehydration and filtration of the existing transformer/servo voltage stablizer oil by dehydration plant in running condition to achieve di-electric strength of 40 KV at the gap of 2.5 mm complete all as specified and directed by Engineer-in-charge.(Dehydration plant shall be provided/brought at site by the contractor) and shall also include the following provisions :- a) Testing of transformer /servo voltage stablizer oil before & after dehydration shall be carried out as directed. (b) Contractor will maintain a register of dehydration and filtration of each and every eqpt as per format given by Engr-in-charge and submit the same to Engr-in-charge.

Supply and filling transformer oil for topping up of min BDV 50 KV or replacement in different existing transformers outdoor/indoors type of any capacity located and installed at different places and different height complete all as specified and as directed by the Engineer-In-Charge. Make Power oil/ Servo oll/ savsol Note: - Transformer Oil:- The entire quantity of transformer oil shall be procured in sealed contaner

Supply and replacement of dehydrating agents (Silca gel) in transformers of capacity upto 1000 KVA transformer outdoor/indoor type complete all as specified and as directed by the Engineer-In-Charge.

M&L for disconnecting of HT/LT connection including earthing strips from 11/0.433 KV and rewinding of indoor/outdoor transformer and taking out defective core and replacement of HT/LT copper winding with super enamelled copper wire of original size and including necessary cotton insulating tape, saperator,nut bolts of suitable size of following capacity after taking shut down from Engr-in-charge and follwing all safety precaution after repair/ rewinding and installing at original location and reconnecting HT/LT connection including earthing and testing commissioning complete all as specified and directed

(a) Transformer upto 250 KVA capacity

(b) Transformer 300 to 500 KVA capacity

M&L for disconnecting of HT/LT connection including earthing strips from 11/0.433 KV and rewinding of 750 KVA indoor/outdoor transformer and taking out defective core and replacement of HT/LT copper winding with super enamelled copper wire of original size and including necessary cotton insulating tape, saperator,nut bolts of suitable size of following capacity after taking shut down from Engr-in-charge and follwing all safety precaution after repair/ rewinding and installing at original location and reconnecting HT/LT connection including earthing and testing commissioning complete all as specified and directed

Supply and fiix In replacement of copper winding wire super enamelled of size as original complete all as specified and directed by Engr-in-charge.

Supply and replacement of LT bushing (Brass stud and bolts with porcelian insulator) suitable size to fixed the transformer capacity range 60 to 400 KVA including replacement of gasket , cable glands, etc to make the transformer leak proof complete all as specified and as directed by Engr-in-charge

All as per item ser No 9 above but suitable for 500 KVA to 1000 KVA transformer

Supply and fix in replacement ceramic bushing and Gasket on LT side of transformer of following capacities (Make : Mysore Potteries/BHEL/Jayshree :-

(a) 60 KVA to 400 KVA

(b) 500 to 1000 KVA

All as per item No 11 above, but on HT side of transformer of following capacites :-

(a) 60 KVA to 400 KVA

(b) 500 to 1000 KVA

M&L for replacement of worn out off load tap changer set and connecting with existing windig to match the ratio of tap position all as per existing sample suitable for transformers of capacity 100 to 400 KVA all as specified and directed by Engineer-in-Charge.(Make:-Havells,Seimens &ABB)

M&L in replacement for oil temperature gauge suitable for any size of transformers all as per existing shape and size for any make and model transformers all as specified and directed incl taking out old gauge all as specified and directed by Engineer-in-Charge.(Make:-L&T,AE &M/s Enercon)

Material & Labour for painting to existing LT panels, indoor/outdoor type installed at various PWs with one coat of super enameled paint of approved colour on exposed surface including preparation of surfaces all as specified and directed by Engineer-in-charge

M&L for maintenance to existing LT panels, indoor/outdoor type installed at various PWs , installation using suitable welding machine for LT panel, replacement of door hinges, nuts & bolts, door beaders/ gaskets, panel locks, complete all as specified and directed by Engr-in-charge.

Disconnecting the ends of the HT/LT underground/duct cable and taking out the unserviceable cable of any size all as specified and as directed by the Engineer-In-Charge

Excavation in trenches in soft/loose soil not exc 1.50 mtrs wide and not exc. 1.5 mtr deep and getting out for taking out/laying cable pole &stay etc including taking out old precast concrete cover complete. Note - If damage during excavation (such as the pressure pipe line, electric cable HT/LT, water pipe line, fire hydrant pipe line AF net etc) repair the same day and restore the supply without any extra cost and making good the disturbed surface all as specified and directed by Engr in charge.

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

Removing excavated material not exceeding 50mtr and depositing where directed at a level not exceeding 1.5mtr above the starting point complete all as specified and as directed by the Engineer-In-Charge

M&L for sand cushioning (dry sand) to underground cable for cable protection laid in trenches / in existing cable ducts complete all as specified and as directed by the Engineer-In-Charge. Note: For payment point of view, compacted thickness of sand shall be measured.

M&L in replacement for brick, subclass 'B' well burnt, of size 230x115x75 mm laid dry flat in trenches for protection of cable over LT cable, complete all as specified and as directed by the Engineer-In-Charge

Supplying and laying un-reinforced precast concrets cable cover class HV Type 1 flat size 300x180x40 MM

M&L in replacement of cable XLPE insulated screened, galvanized steel wire armored, electric power cables (heavy duty) 11000 volts grade with stranded aluminium conductor of following sizes-(Make Seewel, KEI & Gloster)

(a) 185 sqmm 3 core

(b) 120 sqmm 3 core

Supply and Laying of cable XLPE insulated screened, galavanised steel strip or wire armored, electric power cables (heavy duty) 1100 volts grade with stranded aluminium conductor of following size (Make Seewel, KEI & Gloster)

(a) 240sqmm 3.5 core.

(b') 185 sqmm 3.5 core.

(c) 120 sqmm 3.5 core.

(d) 95 sqmm 3.5 core.

(e) 70 sqmm 3.5 core.

Supply, fix cable jointing kit and testing complete for 11 kv grade cable for Indoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sq mm to 185 sqmm all as specified and directed. . Make 3M/Denson/Raychem

All as per item No 26 above but of size 240 sqmm to 300 sqmm Make 3M/Denson/Raychem

All as per item No 26 above but of size 50 sqmm to 95 sqmm Make 3M/Denson/Raychem

Supply and jointing heat shrinkable straight through joint with jointing material suitable for HT 11KV XLPE cable of size 120 to 185 Sq mm 3 core complete all as specified and as directed by Engineer-in-Charge. Make- Denson/Reychom/M seal

Supply and jointing heat shrinkable straight through joint with jointing material suitable for HT 11 KV XLPE cable of size 240-300 sqmm 3 core complete all as specified and as directed by Engineer-in-Charge. Make- Denson/Reychom/M seal

Supply and jointing heat shrinkable straight through joint with jointing material suitable for HT 11 KV XLPE cable of size 50 to 95 sqmm 3 core complete all as specified and as directed by Engineer-in-Charge. Make- Denson/Reychom/M seal

S & F testing and commissioning heat shrinkable straight through Jointing Kit suitable for LT Cable of size 25 sq mm to 50 sq mm 3.5 core, Make- Denson/Reychom/M seal

S & F testing and commissioning heat shrinkable straight through Jointing Kit suitable for LT Cable of size 70 sq mm to 150 sq mm , 3.5 core, Make- Denson/Reychom/M Seal

S & F testing and commissioning heat shrinkable straight through Jointing Kit suitable for LT Cable of size 185 sq mm to 400 sq mm 3.5 core, Make- Denson/Reychom/M Seal

M&L for cutting of Hardstanding/road by mannual method upto150mm deep for inserting GI pipe for cable protection complete including ready mix concreate and making good distrubed surface all as specified and as directed by Engr-in-Charge.

M & L in replacement for galvanised Pipe of dia 100 mm, 'light grade' with all fitting,laid in trenches for passing of cable etc. all as specified and directed by Engr-in-charge.Make:- Jindal TATA &M/s prakash

All as item No 36 above but GI pipe 80 mm dia Make:- Jindal TATA &M/s prakash

Supply & Fixing in replacement of digital volt meter flush mounted class - 1.0, size 96 X 96 Sq mm complete Make : Rihsabh/HPL/ AE

S&F in replacement of digital Amps meter mounted flush mounted class - 1.0, size 96 X 96 Sq mm complete Make: Rihsabh/HPL/ AE

S&F in replacement of RYB indicator LED type capacity complete Make: HPL/ Indo asian/ L&T

M & L for replacement of potential transformer (voltage transformer) 11 KV/ 110 V, dry type , complete with winding copper wire, indoor resin cast & ratio 11 KV/110 volt class 0.5 ,burden 50 VA-50 VA including conecting and testing complete all as specified and directed by Engg - in - Charge.

M & L for replacement ,testing & commissioning with HT panel phase indoor resin cast CT duel ratio 150/5+5A requiredclass 1.0/5P10, burden 15 VA including conecting and testing complete all as specified and directed by Engg- in- charge.

M & L for replacement for earthing complete with galvanized mild steel earth plate electrode 60cm x 60cm x 6mm thick buried directly in ground (earth pit not less than 2.25 Mtr below ground level) with top edge of earth plate not less than 1.5 Mtrs below ground level connected to GI strip 32x6mm as earth lead by means of nuts, bolts, thimbles, chuck nuts, washers of GI or steel, including PCC (concrete chamber) shall be PCC 1:3:6 type C-1 using 20mm graded stone aggregate, with fair finish internal surface of concrete chamber shall be given 15mm thick plaster in CM 1:4, funnel with wire gauge mesh, 80 mm thick RCC pit cover 320 mm x 320 mm of RCC 1:2:4 type B-1 using 20 mm graded stone aggregate reinforced with MS bar 8mm C/C 100mm MS handle made of 10mm MS bar and charcoal dust and common salt all as shown in electrical plate No 3 of MES SSR Part-I (2009) and specified including provision of GI strip protected by 40 mm dia light grade pipe and watering pipe shall be 20mm bore light grade, and including all excavation and earth work & connecting the earthing to an earthing test point complete all as specified & directed by Engr-in-Charge.

M & L for excavation by trench less boaring technology for holes under road pavement, hardstanding using ultra sound technique and engaging necessary machine including HDPE pipe ISI marked of dia 100 mm suitable for .4 Mpa working pressure complete all as specified and directed by Eng-in-charge. Note: HDPE pipe and marking good the disturbed surface is deemed to be included in rate quoted by contractor).

M&L cement concrete type B- 1, 1:2:4 using 20mm grade aggregate in mass concrete complete all as specified and directed.

Cutting removing the vegetation growth and surface dressing all around the installation yard including two pole structure areas, around power house, substation (external only) to keep always installation clean and tidy all as specified and as directed.

Supply and replace Silicagel breather assembly complete for transformers upto 750 KVA capacity all as directed.

S&F in replacement of copper strip 20 x 3.15mm with for roof conductors and down saddles and fixing screws etc.conductors above ground

S&F in replacement of copper strip 32x6 mm with for roof conductors and down saddles and fixing screws etc.conductors above ground

S&F in replacement Single pointed air termination aluminium rod 12 mm dia 300 mm long.

S&F in replacement aluminium strip 25 x 3 complete with saddles and fixing screwes for roof conductors down conductors .

S&F in replacement porcelin insulator 15 BMD type with nut bolts and screws for fixing copper strips on wall etc all as directed.Make:-Bhel, M/s Jayshree &M/s bengal Potteries

S&F in replacement test terminal block made out of gun metal or phosphrous bronze size 150x 150 x 75 mm depth cutting upper and lower portion for incomming & out going including double insulators two coat of synthetic enamel paint complete as directed.

M&L for shifting of transformer from platform to vehicle with the help of crane and loading to vehicle. The transformer to be shifted to other location as required , cleaning the transformer completly, replaceing the top cover gasket , wahser & seal ring of terminals testing the transformer on load and checking for any leaks, connecting the HT/LT cables and testing on load of capacity upto 750 KVA all as specified and directed by Engineer-in-Charge. Note : (i) the quoted rates are inclusive of lifting ,loading ,transportation, gaskets, seal rings, nuts, bolts etc.

M & L for mild steel plates Fe-410-W (Gde -E-250) plain or chequered as in duct covers including cutting , fabricate, cut to existing sizes including taking out the rusted plates all as specified and as directed.

Supply and fix in replacement capacitors metalized poly propylene heavy duty (MPP-H) for 3 phase 440V , 50 Hz system for permissible non-linear load of 5 to 15 kVAr rating including taking down unserviceable capacitor all as directed.

Supply and fix in replacement capacitors metalized poly propylene heavy duty (MPP-H) for 3 phase 440V , 50 Hz system for permissible non-linear load of 20 to 25 kVAr rating including taking down unserviceable capacitor all as directed.

S&F in replacement of danger notice plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with M.S.clamps, bolts and nuts of approved size, for LT, 20x15cm size.

Supply and fix in replacement of root indicator of HT and LT cable with capacity and location of plate size 20cmx20cmx3mm made of GI plate with angle iron 20mmx20mm and 60cm long. Note PCC work shall be measured and paid separetly.

M&L for 25 mm thick cement concrete type B-0, 1:2:4 (12.5 mm graded aggregate) as in levelling course complete all as specified and as directed.

Supply and fixing in repair Steel rolling shutters 1.25mm, with ball bearing, as specified including top cover, anchoring rod, pipe shaft, Hood cover 1.25 mm thick, curtain, hold fast stopper, square bar guide channel, bracket plate, lock plate, handle, sliding lock, pulling hook, hasp and staple and one shop coat of primer; erected in position as directed by Eng- In- charge, push pull or manual type, including dismantel of existing shutters complete all as specified and directed.

M & L for cement concrete 1:3:6 type C 2 using 40 mm graded stone aggregate as in foundation filling, post hole filling and mass concrete etc complete all as specified and directed.

S & F Mild steel work as in posts & struts in fencing including cutting tops to shape as directed, drilling holes, notching for wire, etc.; flat iron fillets (for securing wire mesh etc.) including all necessary drilling, bolting or reveting, etc., & similar work conforming to Fe 290 or E-165 including dismantling of existing pole complete all as specified and directed

Supply only chain link MS galvanised fencing, any size and type complete all as specified and directed

Fixing only chain link fencing including line wires, any mesh, size and type to any type of standards, rails, straining bolts etc., including provision of binding wire complete all as specified and directed

M & L for mild steel bars 10 mm dia and over cut to length bent to shape required of grade Fe-410-W(Gde.E-250) fixed to chain link fencing all as specified and directed. (Make:-Jindal, TATA & Gallant)

Supplying and laying reinforced precast concrete cable cover, class HV, Type 1, flat, size 300 mm x l80 mm x 40 mm in trenches for protection of the underground cable complete all as specified and directed by Engr-in-charge.

M&L complete for drilling hole under hard standing /road for laying of pipe for protection of cable etc by manual booklet without disturbing the top surface and making good the disturbed surface if any complete all as specified.

Laying of cable XLPE insulated screened, galavanised steel strip or wire armored, electric power cables (heavy duty) 1100 volts grade with stranded aluminium conductor of following size (Make Seewel, KEI & Gloster)

(a) 185 sqmm 3 core

(b) 120 sqmm 3 core

(c) 150 sqmm 3 core

(d) 95 sqmm 3 core

Schedule of Credit

M/S S.K.Electricals (BID ID -3498658)

Deepak Electricals (BID ID -3498782)

BRIJ MOHAN LAL AND CO. (BID ID -3498726)

M/S ADHIKARI CONSTRUCTION CO. (BID ID -3496627)

Mani Control System (BID ID -3498365)