REPAIR/ REPLACEMENT OF HT DISTRIBUTION SYSTEM, REPAIR TO TRANSFORMER AND ALLIED WORKS AT FORT CANTT ALLAHABAD

Amount

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m deep and getting out in soft/loose soil complete all as specified and directed.

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.

Supply and laying old size sub class 'B' bricks, laid dry and flat with width equal to the length of whole bricks over cable for protection of cable complete all as specified and directed.

M&L for clean and dry sand (unwashed) in trenches around the cable for cushioning complete all as specified & directed. Note :- Sand cushioning 8cm before laying the cable and 15cm after laying the cable & punned down 18cm,and punned thickness shall be measured and paid.

Laying only Sub class 'B' bricks(old size) laid flat in trenches as cable covers complete all as specified & directed. Note;- Old serviceable bricks obtained from taking down of cable will be used in this item.

M&L boring of holes (manually) under road , hard standing without damaging the surface for 80 mm bore GI Pipe complete all as specified and directed. Note:- (i) Depth of hole shall be 1 Metre below the top surface of Road / hard standing. (ii) Pipe shall be measured and paid seperately under respective item of the schedule.

Taking out old unserviceable HT UG cable of any size from the trenches including earth/ excavation work and detecting fault and rectifing the defect, and relaying the same and testing on completion complete all as specified and directed by Engr- in- charge. Note:- Excavation & earth work shall be measured & paid separetly.

Supplying, laying, testing and commissioning in pipes/ ducts/ poles/ trenches/ under floor/ under road XLPE insulated cable screened PVC bedded galvanised steel strip armoured,electric power cable heavy duty with aluminium conductor,11000 Volt grade(Earthed) cross section area 120 Sqmm, 3 core, including taking down existing u/s cable complete all as specified and directed.

Supplying, laying, testing and commissioning in pipes/ ducts/ poles/ trenches/ under floor/ under road XLPE insulated cable screened PVC bedded galvanised steel strip armoured,electric power cable heavy duty with aluminium conductor,11000 Volt grade(Earthed) cross section area 95 Sqmm, 3 core, including taking down existing u/s cable complete all as specified and directed.

Supply and laying 80mm bore GI pipe 'light grade' in trenches,under floors,roads,along poles for protection of cables,including sealing ends, MS clamp etc complete all as specified & directed.

M&L painting of 11m steel pole with cross arms,clamp of any length and shape for HT overhead line with one coat of aluminium paint including preparation of the existing surface including marking pole numbers in a 15cm dia yellow circle & marking three black & two yellow bands width 30cm by fluorescent paint,from bottom of pole above coping to 1.5 mtr height,complete all as specified and directed.

M&L painting of two pole structure of 11m steel poles with cross arms,bracings,clamps of any length and shape for HT overhead line with one coat of aluminium paint including preparation of the existing surface including marking pole numbers in a 15cm dia yellow circle & marking three black & two yellow bands width 30cm by fluorescent paint,from bottom of pole above coping to 1.5 mtr height,complete all as specified and directed.

M&L painting of four pole structure of 11m steel poles with cross arms,bracings,clamps of any length and shape for HT overhead line with one coat of aluminium paint including preparation of the existing surface including marking pole numbers in a 15cm dia yellow circle & marking three black & two yellow bands width 30cm by fluorescent paint,from bottom of pole above coping to 1.5 mtr height,complete all as specified and directed.

Taking down carefully switch air break, gang operated, triple pole complete and supply, installing, connecting and commissioning switch air break gang operated, triple pole, outdoor type of 12 insulators, mechanically operated, mounted on insulators and steel frame, with operating mechanism and operating rod of 25mm bore GI pipe worked from ground level, with locking arrangements, for current rating 400 Amp at 11 KV,complete all as specified and directed.

Supply and fixing in replacement of lightning arrestor suitable for 11 KV grade, expulsion type, complete with all fitting transmission class for outdoor discharge capacity 65KA, complete all as specified and directed.

S&F in replacement disc type insulator,porcelain,vitreous,white brown or green,145 mm high and 225mm dia ball and socket type single disc assembly for tension with tension clamps for conductors,working pressure 11000 volts grade complete all as specified and directed. Make - Southern insulator/Reychem/Birla 3M/Jaipuria

S&F in replacement pin type insulator,porcelain,vitreous,white brown or green insulator including one galvanised mild steel spindle,two galvanised iron washers and one galvanised iron nut,150 mm height and 150mm dia suitable for working pressure 11000 volts grade complete all as specified and directed. Make - Southern insulator/Reychem/Birla 3M/Jaipuria

Restringing of HT overhead line conductor comprising of three run ACSR conductor and two run GI earth contunity conductor of span 40 to 55mtr length after opening from insulators, including restraining same and winding on insulator with proper size of binding wire upto permissible sag complete. Note :- Quoted rate shall be deem to included the cost of winding wire and replacement of insulator if damaged during restraining of conductor.

M&L for cross arms, bracing, supports, clamps and back plate,fabricated from structural steel section including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts,in any shape or size, including two coats of synthetic enamel paint over a coat of red oxide primer,complete all as directed. Dismantling and taking out damaged/ruste cross arms , bracings, supports, clamps and back plates from existing poles/dismantled poles/pole structures complete all as specified and directed.

M&L for ACSR conductor of required size including stringing same on HT/LT pole and winding on insulator with proper size of binding wire upto permissible sag including dismantling of existing u/s conductor, complete all as specified & directed

M&L for stringing, 4mm dia galvanized steel wire as earth conductor on HT/LT poles including binding wire etc, complete incl. dismantling u/s existing GI wire, complete all as specified and directed

M/L for cutting, pruning, triming and vending tree branches along HT/LT over head lines at places within a radius of 2 metre from fasted conductor of span 40 to 55 mtr length and removing from site after arranging electrical shut down, including taking all precautions while working on lines using own T&P by the contractor complete all as specified and directed.

S&F in replacement danger notice plate for HT 25 x20cm x 1.5mm thick mild steel sheet,vitreous enameled white with letters,figures and conventional skull and bones in signal red colour and fixed with MS clamps,bolts and nuts, complete all as specified and directed.

M&L for Anti climbing device; spikes type fabricated out of M.S. bars (round,square and flat) including nuts,bolts,washers and welding in two halves made to shape to suit the cross section of the pole complete all as specified ad directed.

M&L for providing and fixing PVC spacer strip type and maintaing the specified distance between the conductor as directed by Engr-in-Charge.

S&F cable jointing kit for 11 KV (Earthed) grade cable for out door type straight through heat 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 heat 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.

Supply and fixing in replacement cable jointing kit for 11 KV (earthed) grade cable for out door type end termination heat shrink 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.

Supply and fixing in replacement cable jointing kit for 11 KV earthed grade cable outdoor type end termincation heat 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.

M&L for caliberation of VCB, CHECKING (All connections and mechanism) cleaning servicing overhauling,testing complete of 3 phase 11 KV vaccum circuit breakers any make / type as mentioned below :- (a) Taking out incoming and outgoing HT 11 KV 3 core cables from the electric system and checking CTs 03 Nos of each VCB for insulation and saturation calibrating with the help of primary injection & testing kit for primary triping system in presence of Engr-in-Charge/rep ofEngr-in-Charge and reconnecting the incoming and outgoing HT cables ,complete all as specified and directed.

(b) Inspecting, servicing and testing all connections of control wiring availability of proper D.C. supply,incoming and outgoing connections and tightening them,cleaning the contacts and terminal with CTC solution and using the blower for dusting incl replacement of faulty control fuses,indication lamp & testing for satisfactory operation raising and lowering mechanism in presense of Engr-in-Charge, complete all as specified and directed. (c) Taking out IDMT over current relay 01 Nos and earth fault relay 01 No from the 11KV VCB (2 Nos In each) and calibrating the relays with the help of secondary injection kit and proper setting of relays and refixing back in existing position testing of proper tripping system in presence of Engr-in-Charge complete all as specified and directed.

(d) Taking out incoming and outgoing HT 11 KV 3 core cables from the electric system and checking PT 11 KV/110V of each VCB for insulation and accuracy and calibrating the same in presence of Engr-in-Charge/rep of Engr-in-Charge and reconnecting the incoming and outgoing HT cables complete all as specified and directed. (e) Taking out trolly mechanism of VCB 11 KV for checking all mechanical parts,dismantling and replacing defective parts,checking and readjustment of all moving parts, springs, bearings, greasing all moving parts complete all as specified and directed. NOTE : (i) All the instruments,primary and secondary injection kit and T&P required for the above job shall be arranged by the contractor at site and cost of the same shall deemed to be included in the above rates. (ii) All the test record shall be mentained and signed by the testing engineer,contractor and Engineer-in-Charge . (iii) The above work shall be performed by authorised HT expert/ engineer of manufacturer.

M&L for checking (All connections and mechanism) cleaning, servicing, overhauling, testing complete of 3 phase 11KV ring main unit any type/ make outdoor type respectively as mentioned below:- (a) Taking out incoming and outgoing HT 11 KV 3 core cables from the electric system and checking CTs 03 Nos of each VCB for insulation and saturation calibrating with the help of primary injection & testing kit for primary triping system in presence of Engr-in-Charge/rep ofEngr-in-Charge and reconnecting the incoming and outgoing HT cables ,complete all as specified and directed.

(b) Inspecting, servicing and testing all connections of control wiring availability of proper D.C. supply,incoming and outgoing connections and tightening them,cleaning the contacts and terminal with CTC solution and using the blower for dusting incl replacement of faulty control fuses,indication lamp & testing for satisfactory operation raising and lowering mechanism in presense of Engr-in-Charge, complete all as specified and directed.

(c) Taking out IDMT over current relay 02 Nos and earth fault relay 01 No from the 11KV VCB and calibrating the relays with the help of secondary injection kit and proper setting of relays and refixing back in existing position testing of proper tripping system in presence of Engr-in-Charge complete all as specified and directed. NOTE : (i) All the instruments,primary and secondary injection kit and T&P required for the above job shall be arranged by the contractor at site and cost of the same shall deemed to be included in the above rates. (ii) All the test record shall be mentained and signed by the testing engineer,contractor and Engineer-in-Charge . (iii) The above work shall be performed by authorised representative i.e. HT expert/ engineer of manufacturer.

Disconnection & taking out old/defective current transformer (CT) from 11 KV VCB panel and supply ,fixing,intallation & testing of current tranformer ,indoor comprising of 3 Nos single phase resin cast CTs of 100-50/5+5 amps ratio ,PS class with 10 V A burden and accuracy class-I suitable for protection & material incl making suitable arrangement for fixing in existing VCB panel and connection complete all as specified and directed. Note:- (i) All the instruments and T & P required for the above jobs shall be arranged by the contractor at site and cost shall deemed to be included in the quoted rates. (ii) The above work shall be performed by authorised representative i.e. HT expert/ engineer of manufacturere.

M&L for filteration and centrifuging of transformer oil ,complete all as specified and directed. Note :- Centrifuging machine to be arranged by contractor. BDV of test to be noted before and after centrifuging. Centrifuging and cleaning will be carried on until BDV of 50KV with 2.5mm gap reached. Heaters not less than 5KW should be used. Centrifuging will be done while running of transformer.

M&L for replacement of transformer oil in 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.

S&F in replacement of silica gel breather assembly including silica gel of transformer 11/0.433 KV of capacity 63-200 KVA complete all as specified and directed.

S&F in replacement of silica gel breather of transformer 11/0.433 KV of capacity 250-500 KVA complete all as specified and directed.

Supply & filling of silica gel only in transformers etc of any capacity 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 marking number on pole including dismantling existing u/s pole and including 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 complete all as specified and directed.

S&F stay assembly (in replacement) consisting of galvanised stay wire 7/10 SWG stay bow of 14 mm dia, stay rod 16mm dia 180cm long with loop insulators stay plate 230 x 230mm x6mm with PCC foundation 1:3:6 type C2 complete with stay clamps,bolts and nuts all as specified and directed by Engr-in-Charge including the following :- (a) Excavation and earth work for stay foundation in soft/loose soil,disposal of surplus soil to a distance n. exc. 50 metres & depositing where directed at a level n. exc. 1.5mtr from the starting point as directed. (b) PCC 1:3:6,type C-2(using 40mm graded stone aggregate) as in embedding blocks all as specified.

M & L for earthing complete with galvanised steel earth plate electrode 600 x 600x6mm thick buried in ground(earth pit not less than 2.25m deep below ground level) with top edge of the earth plate not less than 1.5m below the ground level connected to galvanised iron strip 25x 4mm by means of nuts,bolts,check nuts and washer of galvanised iron at 2 points & GI pipe 40mm bore light grade for protection of earth strip PCC chamber 1:3:6 (type C-1)using 20mm graded stone aggregate funnel with wire mesh,50mm thick cover of RCC 1:2:4 type B-1 using 20mm graded stone aggregate reinforced and lifting handle on RCC cover with 8mm MS bars at 150mm centre to centre both ways and charcoal dust and common salt,all as shown in electrical plate No. 3 of MES SSR Part-I and making test point as specified including excavation & earth work and connecting the earthing to an earthing point/equipment incl testing on completion complete all as specified and dirtected. (Note:- The rates quoted shall deemed to be included the cost of earth test point, GI strip and protection pipe upto 7.5m beyond the earth plate electrode.)

M&L for earthing complete with galvanised steel earth plate electrode 600 x 600x6mm thick directly buried in ground(earth pit not less than 2.25m deep below ground level) with top edge of the earth plate not less than 1.5m below the ground level connected to galvanised iron GI wire 4mm by means of nuts,bolts,check nuts and washer of galvanised iron at 2 points & GI pipe 15mm bore light grade for protection of earth wire, PCC chamber 1:3:6 (type C-1)using 20mm graded stone aggregate funnel with wire mesh,50mm thick cover of RCC 1:2:4 type B-1 using 20mm graded stone aggregate reinforced and lifting handle on RCC cover with 8mm MS bars at 150mm centre to centre both ways and charcoal dust and common salt,all as shown in electrical plate No. 3 of MES SSR Part-I and making test point as specified including excavation & earth work and connecting the earthing to an earthing point/equipment incl testing on completion complete all as specified and dirtected. (Note:- The rates quoted shall deemed to be included the cost of earth test point, earth wire and protection pipe upto 7.5m beyond the earth plate electrode.)

Taking down the defective unserviceable transformer from existing site from pole and Sub Stn with the help of man power & chain pully block or by crane etc including dieconnecting all electrical and mechanical connections from the site and carrying to workshop for repair and replacement of old burnt u/s item including transporting of capacity 50 KVA to 100 KVA.

All as per item No 44.00 above but transformer of capacity 125 KVA to 250 KVA complete all as specified and directed.

All as per item No 44.00 above but transformer of capacity 315 KVA to 500 KVA complete all as specified and directed.

Opening Dismantling the transformer of capacity 50 KVA upto and including 100 KVA by lifting the top cover taking out the HV leg coil and LV leg coil and draining out the transformer oil in barral including cleaning the transformer chamber (body) inside and out side throughly with emery paper and cloth than checked the winding and other worn-out parts such as HV/LV coils and other connected items as Tap-changer, breather assembly, bush etc and replacement of new spares i.e. tap changer, bush etc, HV/LV coil rewinding with DPC enamelled copper wire/ strip of adequate size, guage and number of turn complete and connected to existing serviceable strip by jointing with soldring and reinsulation with cotton tape over strip including using insulating material like varnish to limb coil fire proof type and sleeves etc by drying and baking of Insulating material in heating chamber in adequate temprature reassembling the transformer HV/LV connection with help of soldering.Testing of transformer after reassembly complete on No load at workshop and ON load at site incl painting to the transformer with super enameled Heat resistant paint all as specified anddirected. Note -(i) Tap changer, bush will be measured and paid separately as supply only under respective item of Sch 'A'. (ii) M&L for winding of HT/LV coil with DPC enamelled copper/aluminium wire of existing size & guage including insulation, drying baking shall be measured and paid separately under respective item of Sch 'A'. (ii) Distribution transformer shall be got repaired from authorised work shop of Manufacturers or any other works shop which have authoristaion from UPPCL for repair of such capacity transformer. (iii) Following test shall be conducted before installation & commissioning on site. (iii) Following test shall be conducted before installation & commissioning on site. (a) Insulation Resistance Test (by 5000 V megger) (b) Ratio Test (c) Double voltage & double frequency Test (d) Transformer oil value BDV test (e) Tap changing test off load for all tap position

All as per item No 46.00 above but transformer of capacity 125KVA to 250 KVA complete all as specified and directed.

All as per item No 46.00 above but transformer of capacity 315 KVA to 500 KVA complete all as specified and directed.

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 .

Supply only HT bush Insulator complete with rod as per existing material & size and nut suitable for indoor/outdoor type transformer of 50 KVA to 100 KVA capacity complete all as specified and directed.

All as per item No 51.00 above but transformer of capacity 125 KVA to 250 KVA complete all as specified and directed.

All as per item No 51.00 above but transformer of capacity 300 KVA to 500 KVA complete all as specified and directed.

Supply only LT bushing with leather gasket Insulator complete with rod as per existing material & size and nut suitable for indoor/outdoor type transformer of 50 KVA to 100 KVA capacity complete all as specified and directed.

All as per item No 54.00 above but transformer of capacity 125 KVA to 250 KVA complete all as specified and directed.

All as per item No 54.00 above but transformer of capacity 300 KVA to 500 KVA complete all as specified and directed.

Supply only tap changer for adjusting the voltage with brass parts as per sample of existing for indoor/outdoor type transformer of 50 KVA to 100 KVA capacity complete all as specified and directed.

All as per item No 57.00 above but transformer of capacity 125 KVA to 250 KVA complete all as specified and directed.

All as per item No 58.00 above but transformer of capacity 315 KVA to 500 KVA complete all as specified and directed.

M&L for painting of transformer 50 KVA to 100 KVA externally with one coat heat resistant grey colour paint with spray gun incl surface preparation complete all as specified and directed.

M&L for painting of transformer 125 KVA to 200 KVA externally with one coat heat resistant grey colour paint with spray gun incl surface preparation complete all as specified and directed.

M&L for painting of transformer 250 KVA to 500 KVA externally with one coat heat resistant grey colour paint with spray gun incl surface preparation complete all as specified and directed.

M&L for painting of transformer 501 KVA to 630 KVA externally with one coat heat resistant grey colour paint with spray gun incl surface preparation complete all as specified and directed.

M&L for cleaning of surrounding area of installation such as treaming of tree branches, removing of grass and taking out bushes including roots and spraying with spray pump herbicides Pendimethalin/Alachlor @ 3 ltr in 400 ltrs of water per hectare for pre emergence of herbicides complete all as specified and directed. Note :- Tools and safety Kit shall be provided by contractor and rates are deemed to be included in unit quoted rates.

Supply and filling loose stone aggregate 40mm around 11 KV, 4 pole/2 pole structure incl taking out the vegetation etc complete all as specified and directed.

AARAV CONSTRUCTION

R.K.ASSOCIATES