REPAIR/ MAINT OF STEP DOWN/ UP TRANSFORMER/ VCBs/RMU AND OTHER ALLIED HT NETWORK (33 and 11 KV) UNDER AGE (I) (AF) MANAURI

Amount

Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits,manholes, pier holes, for laying of UG Cable etc. n exc 10 sqm on plan and n exc 1.5 m in depth and getting out in soft/loose soil complete all as specified & directed by Engr-in-Charge

Returning filling in including spreading leveling watering and well ramming in layers not exceeding 25 cm in soft/loose soil complete all as specified & directed by Engr-in-Charge

Removing excavated material n.exc. 50m and depositing where directed at a level n.exc 1.5 m above starting point complete all as specified & directed by Engr-in-Charge.

Material and labour for sand cushioning with a layer of sand 8 cm thick before laying of cable and 15 cm thick after laying of cable in trenches complete all as specified & directed by Engr-in-Charge. Note: Punned thickness 18 cm shall only be measured.

Supply ,laying , testing and commissioning XLPE insulated , screened, PVC bedded galvanised steel strip or wire armoured HT electric power cable heavy duty with aluminium conductor 11000 volts grade earthed cross sectional area 120 sq mm 3 core, laid in trenches/ducts /encased in GI pipe /fixed to pole including taking down old cable complete all as specified and directed. Note : Excavation earth work cable cover, sand cushioning etc shall be measured and paid separately under respective items)

Supply ,laying , testing and commissioning XLPE insulated , screened, PVC bedded galvanised steel strip or wire armoured HT electric power cable heavy duty with aluminium conductor 11000 volts grade earthed cross sectional area 95 sq mm 3 core, laid in trenches/ducts /encased in GI pipe /fixed to pole including taking down old cable complete all as specified and directed. Note : Excavation earth work cable cover, sand cushioning etc shall be measured and paid separately under respective items)

Supply ,laying , testing and commissioning XLPE insulated , screened, PVC bedded galvanised steel strip or wire armoured HT electric power cable heavy duty with aluminium conductor 33000 volts grade earthed cross sectional area 300 sq mm 3 core, laid in trenches/ducts /encased in GI pipe /fixed to pole including taking down old cable complete all as specified and directed. Note : Excavation earth work cable cover, sand cushioning etc shall be measured and paid separately under respective items)

Material and labour for un-reinforced precast concrete cable cover HV type 1, flat of size 300x180x40mm all as specified and directed by Engr-in-Charge

Material & labour for cutting /boring to plinth protection/ hard standing / road etc in suitable depth to across the GI pipe size upto 80 mm dia of bore for drawn through XLPE under ground cable for giving mechanical protection to cable complete all as directed. (Note : Quoted rate shall include the cost of required material for repairing to disturbed surface complete all as per existing site and all as directed by Engineer-in-charge.

M&L in replacement to GI tubing light grade 150 mm dia of bore with all fitting laid in trenches across the road or fixed with pole/ surface of wall etc as site with required fixing accessories complete all as specified and directed.

All as above item No-10 here in before but in size 80 mm dia of bore.

Labour for disconnecting /taking out/ cutting etc to XLPE insulated cable upto 33/11KV graded in any specification/ size/ core etc from trench/ tray / pole / GOD etc as site to replace the defective piece/ portion or jointing by straight through/ end termination joint kit etc incl removing brick/ cable cover safely for re-using the same existing complete all as directed and quoted unit rate included such aspect. Note: (i) Earth work shall be measured and paid against respective item. (ii) Required T&P and safety equipment’s shall be arranged by contractor. (iii) Any other part replaced during execution shall be measured and paid separately under respective items.

Labour for detecting location of fault by using vehicle mounting fault locator machine to move along route layout of XLPE insulated HT 11/33 KV under ground cable at various location at AOR by gradually step by step testing of tracing the correct fault location incl making all testing after re-laying of repaired cable as per existing complete all as specified and directed. Note:- Quoted unit rate shall be deemed to be inclusive of cost of payment of fees for providing fault locator machine from State Govt Electricity authority and its transportation including diesel & driver charges complete. Govt receipt for payment made for state Govt Electricity authority be produced to Engineer-in-charge at every time before making payment to contractor.

Labour for re-laying, connecting, jointing, thembling using in suitable size and cramping etc to serviceable XLPE insulated cable upto 33 KV/11 KV grade (Earthed) in all specification incl brick (re-use) and sand (Provided fresh) etc all as per existing complete all as specified and directed. Note : Sand cushioning punned thickness shall be measured and paid separately under respective items.

Supply and fixing / laid in trench/ bored hole under the High way for mechanical protection to XLPE cable of as new reinforced concrete pipes class NP 3 pipe dia of bore 450 MM laid under the National high way road for crossing the HT cable including jointed complete with collars complete all as site required and directed. Note : Quoted rate shall be included the cost of required safety measures and rent of boring machine etc all required other work for crossing the above pipe under the full functional at National high way at suitable depth.

Supply, fixing, connecting jointing thembling to end of cable, testing etc in replacement to cable jointing kit for 11KV (earthed) grade cable for out door end termination heat shrink type joint complete with jointing material and accessories suitable for 3 core x 120 to 185 Sqmm XLPE armored alumunium conductor cable complete all as specified and directed. (Note : Excavation & work shall be measured and paid against respective items) (Make : Denson or M- Seal or Raychem or equivalent makes given in Appx 'B' duly approved by AGE (I)

Supply, fixing, connecting jointing thembling to end of cable, testing etc in replacement to cable jointing kit for 11KV (earthed) grade cable for indoor end termination heat shrink type joint complete with jointing material and accessories suitable for 3 core x 120 to 185 Sqmm XLPE armored alumunium conductor cable complete all as specified and directed. (Note : Excavation & work shall be measured and paid against respective items) (Make : Denson or M- Seal or Raychem or equivalent makes given in Appx 'B' duly approved by AGE (I)

Supply, fixing, connecting jointing thembling to end of cable, testing etc in replacement to cable jointing kit for 11KV (earthed) grade cable for out door straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core x 120 to 185 Sqmm XLPE armored alumunium conductor cable complete all as specified and directed. (Note : Excavation & work shall be measured and paid against respective items) (Make : Denson or M- Seal or Raychem or equivalent makes given in Appx 'B' duly approved by AGE (I)

Supply, fixing, connecting jointing thembling to end of cable, testing etc in replacement to cable jointing kit for 33KV (earthed) grade cable for out door end termination heat shrink type joint complete with jointing material and accessories suitable for 3 core x 300 Sqmm XLPE armored alumunium conductor cable complete all as specified and directed. (Note : Excavation & work shall be measured and paid against respective items) (Make : Denson or M- Seal or Raychem or equivalent makes given in Appx 'B' duly approved by AGE (I)

Supply, fixing, connecting jointing thembling to end of cable, testing etc in replacement to cable jointing kit for 33KV (earthed) grade cable for indoor end termination heat shrink type joint complete with jointing material and accessories suitable for 3 core x 300 Sqmm XLPE armored alumunium conductor cable complete all as specified and directed. (Note : Excavation & work shall be measured and paid against respective items) (Make : Denson or M- Seal or Raychem or equivalent makes given in Appx 'B' duly approved by AGE (I)

Supply, fixing, connecting jointing thembling to end of cable, testing etc in replacement to cable jointing kit for 33KV (earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core x 300 Sqmm XLPE armored alumunium conductor cable complete all as specified and directed. (Note : Excavation & work shall be measured and paid against respective items) (Make : Denson or M- Seal or Raychem or equivalent makes given in Appx 'B' duly approved by AGE (I)

M&L for painting to steel prepared surfaces of any width or girth not otherwise described by using synthetic enamel paint in two coats (one as finishing coat) over one coat of red oxide zinc chrome primer on surface of steel structure /girder/ angle frame/ wire mesh fencing etc in any description at E/M installation using paint spray gun on specified working pressure including sign making / marking with using different colour in given size of letter etc complete all as specified and directed. Note : Paint colour & shade including writing marking of letters etc shall be deemed included in quoted unit rate and the same shall be approved by Engr-in-charge)

M&L for painting using heat resisting paint in two coats (one as finishing) over one coat of red oxide zinc chrome primer on external surface of transformer in any rating/capacity using Ist quality paint and applying through spray gun machine on specified working pressure incl writing of MES/SM No using different colour including writing letter in given size etc after removing/scrapping/rubbing to old fedded paint and filler filling etc complete all as specified and directed. Note : Quoted unit rate shall be deemed included cost of writing letters & filling depression by using putty complete Colour & shade shall be approved by Engr-in-charge)

M&L for painting to external surface of old painted steel tubular pole upto 11 Mtr height in various location using aluminium paint in two coats (one as finishing) by spray gun after removing/ cleaning/ scraping etc to old fadded paint incl cross arm, support complete all as directed by Engineer in-charge at site and making alternating strip in 30 CM width each upto 1.5 Mtrs above normal ground level and marking pole numbers etc with all sign complete all as specified and directed. Note : Paint colour & shade shall be approved by AGE (I) and tree shrub cutting near poles shall be deemed included in quoted unit rate.

M & L for Painting to existed PTs/ CTs /GOD/ run of ACSR in colour coding etc of 3 three phase distribution bay/ network of 33 KV yard from end terminating point to transformer HT leg/ studs using luminous paint for phase indication in colour coding (Red, blue and yellow) phase wise in two coats over one coat of red primer including cleaning /preparation/ removing etc to old paint on external surfaces of existed located protection equipment’s as above and marking as per given by Deptt complete all as specified and as directed. Note : Quoted rate shall be including the cost of painting to external surface of PTs/ CTs/ control panel in existed colour complete all as specified and directed.

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

M&L for 50mm thick PCC 1:2:4 type B-1 using 20mm graded stone aggregate as in floor surface finished fair and even without using extra cement complete all as specified and as directed.

Supply and filling broken/crushed stone boulder filling dry hand packed tightly laying in layers on ground surface in size 40 to 50 mm after excavation, removing, dressing, leveling, compact work etc all as per site requirement on existing ground surface of E/M installations complete all as specified and directed. (Note:- Quoted unit rate shall be deemed included cost required for earth work to prepare the surface for laying boulder in layers with compact work).

Supply and fixing in replacement to cross arms / angle frame / MS sheet to made out bracings supports / clamp , back plates fabricated from structural steel sections nut bolt washers cutting welding to hot /cold drilling holes for bolts in any shape or size as indicated incl painting in two coats using synthetic enameled paint over one coat of red oxide primer complete all as specified and directed.

Supply, erecting and installation of steel tubular, swaged, pole of overall length 11 meter having maximum tensile strength 42 Kgf/mm2 of type 410 SP-55 conforming to IS-2713-1980. respectively, bottom MS square plate duly painted with two coat of black bituminous paint throughout, internally and externally up to planting depth and painting remaining portion of pole with two coats of aluminium paint to the entire exposed surfaces over one coat of red oxide primer making/pasting three nos circular strips each of 100 mm wide with one blue and 02 Nos white colour strip synthetic enamel paint and marking / stencil writing of pole numbers with black paint complete all as specified and directed. Note :- Necessary Excavation and earth work, PCC work in PCC (1:3:6) type C-1 using 20mm graded stone aggregate for foundation of pole assembly, PCC work in PCC (1:2:4) type B-1 using 20mm graded stone aggregate as in coping etc shall deemed to be included in the item and nothing extra shall be paid.

Supplying, straining in replacement of alumunium conductor steel reinforced (ACSR) in any specification making interconnection of net work fixing on existed structure/pole and replacement of unsv run of 11 KV over head line on existed poles complete all as specified and directed. (Note :- Sagging length of ACSR conductor shall be deemed included in the quoted unit rates).

Supply and fixing in replacement to PG clamp suitable for ACSR for making inter connection on 33 KV net work complete all as specified and directed.

S & F in replacement of pin type porcelain, vitreous, white,brown or green insulator including one galvanised mild steel spindle,two galvanised iron washers and one galvanised iron nut, 50mm height, 65mm dia for 550 volts grade insulator of size 150 MM height, 150 MM dia, 11 KV grade complete all as specified and as directed. Make: Jaipuria or BHEL or oblum or equivalent makes given in Appx 'B' duly approved by AGE (I)

S & F in replacement of shackle type porcelain, vitreous, white,brown or green insulator including one galvanised mild steel spindle,two galvanised iron washers and one galvanised iron nut, 50mm height, 65mm dia for 550 volts grade insulator of size 150 MM height, 150 MM dia, 11 KV grade complete all as specified and as directed. Make: Jaipuria or BHEL or oblum or equivalent makes given in Appx 'B' duly approved by AGE (I)

All as above item No-34 above but disc type insulator suitable for working pressure 11 KV in size 150 MM high and 255 MM dia ball and socket two in series assembly for tension with tension clamp for conductor complete with fixing accessories

S&F in replacement on requirement to aerial fuses porcelain type suitable for line wire with brass contact bolt and nuts maximum current rating 60 Amps in 3 MM dia of wire complete all as specified and directed.

S&F in replacement on requirement to aerial fuses porcelain type suitable for line wire with brass contact bolt and nuts maximum current rating 30 Amps in 3 MM dia of wire complete all as specified and directed.

S&F in replacement to aerial fuses porcelain type suitable for line wire with brass contact bolt and nuts maximum current rating 15 Amps in 3 MM dia of wire complete all as specified and directed.

S&F in replacement to self adhesive PVC insulation tape suitable for 11 KV, 25.1 MM x 9.1 Mtrs x 0.305 MM for HT. Scotch-70 complete all as specified and directed.

S&F in replacement to scotch Rubber mastic insulation tape 2228, 2" (50 MM minimum) width and 10 feet in length suitable for 11 KV. complete all as specified and directed.

S&F in replacement fire retardant/extinguishing electric insulated synthetic mat insulatica-2000 of 3.0 mm thick +10% confirming to BIS : DOC No ET-02 (5440) dated 30 Apr 2004, meeting requirement of IS-3043, IS-5216 (Part I, II, III) IS-8437 and IEC 479 pub I, tested for breakdown strength, tensile/Elongation ageing properties, insulation resistance, effect of acid, alkaline, diesel and transformer opil leakage current test, fire test etc. having minimum width of 1000 mm + 20 mm including all allied materials such as PU-resing, chemical bound (Hardener) special PVC adhesive liquid primer etc of required quantity to complete the job as per site requirement

S&F in replacement to bases to aluminium thumble / legs suitable for thembling to XLPE insulated cable in size 300 Sqmm x 3 core , 33 KV graded complete all as specified and directed.

S&F in replacement to aluminium thumble / legs suitable for thembling to XLPE insulated cable in size 120 to 240 Sqmm x 3.0 core , 11 KV graded complete all as specified and directed.

S&F in replacement to bases aluminium thumble / legs suitable for thembling to XLPE insulated cable in size 95 to 185 Sqmm x 3 core , 11 KV graded complete all as specified and directed.

M&L Servicing of 11 KV distribution network outdoor equipment including isolators, CTs-4 Set, PTs-4 Set, lightening arrestor GODs (oiling/ greasing) by opening their connection and cleaning contacts with sand paper, greasing the equipment whose required reconnecting all the connections including replacement as new supply and fixing minor spares of GOD as nut bolt washer barrel fuses, copper fingers (male and female) operating handle, locking arrangement etc all required for making serviceable complete all as specified and directed. (Note:- The rates quoted shall be deemed included cost of T&P and other items required at site).

Labour only for calibration/relay setting and servicing of all types of relays ( Short circuit earth fault, overload protection, IDMT etc) at 33 KV Yard and substation, comprising of 33 KV control panels-4 Nos, 11 KV VCB panels-6 Nos by authorised agency/OEM through computerised software. The relay shall be duly calibrated in conformity with relay setting of RMU's installed at various HT networks and vice versa. The agency will provide the relay setting parameters in writing for future use complete all as specified and directed. (Note : Calibration of IDMT /relay shall be carried out through authorised agency of OEM only duly approved by AGE (I).

M&L for checking (all connection and mechanism) cleaning overhauling servicing of 3 phase 11 KV ring main unit (RMU) extensive type 630 Amps rating with servicing of cable test compartment, Gas Tank, Interlocking latch for cable test compartment, padlocking system for load break switch, ring switch cable compartment, including replacement to minor spare such as spring copper finger/contact set male and female locking arrangement , relay time re-setting, right mechanism to all for making serviceable by OEM authorised work shop only and reassembling testing and commissioning complete at site all as specified and directed. (Note:- Quoted rate shall be included cost of required other spares & serviceable of RMU).

Supply and fixing termination boots of suitable size for RMU unit capacity 630 Amp including taking down old unsv termination boots all as directed by Engr-in-charge.

M&L for refilling of SF-6 gas up to required working pressure for RMU unit capacity 630 Amp all as directed by Engr-in-Charge. Note - Contractor should provide all safety equipment to his staff before refilling of SF6 gas.

M & L for maint of VCB 11 KV,400/630 Amps of Make CG including removal of VCB trolley,cleaning of all copper male & female contacts,applying anti corresive jelly,tightning of all connections ,refixing the VCB trolley to its original position Checking manual/motorise operation of VCB,checking tripping systems etc complete .

M&L for Voltmeter digital for VCB 11 KV,400/630/1200 Amps

M&L for Amp meter 11 KV digital for VCB ,400/630/1200 Amps

M&L for Indicator for VCB 11 KV,400/630 Amps

M&L for PT Fuse for VCB 11 KV,400/630 Amps

M&L for VCB Triping coil with plunger for VCB 11 KV,400/630 Amps

M&L for VCB Closing coil with plunger for VCB 11 KV,400/630 Amps

M&L for strip heater capacity 80Watt, 240 Volt for moisture controlling of VCB.

Supply and fixing end post rubber boot cover for fixing with 11 KV VCB end post termination out door type for weather protection ISI marked. Make : Deson/M-seal or equivalent makes given in Appx 'B' duly approved by AGE (I)

Supply and fixing Vaccum Interrupter Bottle type V2 35409 M3 suitable for VCB 630 Amp, 50 Hz, rated voltage 11 KV classification class 'C' Make : CG or equivalent makes given in Appx 'B' duly approved by AGE (I) Note : Contractor should provide OEM purchase boucher and test certificate before fixing

Supply and fixing Current Transformer for 11 KV VCB Cap 630 Amp,CT ratio 100-50/5+5, class 1.0, 5P10, core 1 : 15 VA, Core 2 : 15 VA, type BWP-4, rated frequency 50 Hz, STC 13.1 for 1 sec, IS-2705, IEC 60044, BIL:12/28/75 KVP suitable for VCB capacity 630 Amp. Make CG Srl No CCC0477/13 or equivalent makes given in Appx 'B' duly approved by AGE (I)

M&L for megavin spouts as per existing make and model suitable for 11 KV VCB. Make : CG or equivalent makes given in Appx 'B' duly approved by AGE (I)

Disconnecting HT connections of burnt/defective 33 KV Current Transformer outdoor type single pole (ratio 50/25/5+5+1) taking down from site of installation with the help of crane and shifting the Current transformer to contractor’s workshop for repair, re-installing (after carrying out repair), testing and commissioning the Current transformers at site after meggering and proper testing from authorized agency complete all as specified and directed Note : 1. Crane and vehicle for taking down, loading/unloading & shifiting of current transformer shall lbe arranged lby the contractor at his own cost. 2. Repair to transformer shall be measured and paid for separately under respective items here-in-after.

Disconnecting HT connections of burnt/defective 33 KV Potential Transformer outdoor type single pole 50 Hz of ratio (33KV/3/110V/3) rated burden 100 VA with 0.5 accuracy taking down from site of installation with the help of crane and shifting the Current transformer to contractor’s workshop for repair, re-installing (after carrying out repair), testing and commissioning the Current transformers at site after meggering and proper testing from authorized agency complete all as specified and directed Note : 1. Crane and vehicle for taking down, loading/unloading & shifiting of current transformer shall be arranged by the contractor at his own cost. 2. Repair to transformer shall be measured and paid for separaely under respective items here-in-after.

S&F in replacement copper strip wound wire wound coils/limb for winding for 33 KV CT and PT with suitable size copper strip to match with working capacity of the 33 KV CT and PT and all as per manufacturer’s design/specification including provision of Class ‘E’, insulation, fixing the coils in position including connecting electrically in core assembly complete all as specified and directed .

Supply & fixing in replacement switch air break gang operated out door type (conforming to IS specifications) 11 KV, 200 Amps capacity triple pole mechanically operated suitable for operation from ground level and for vertical mounting complete with HT insulator 12 Nos, channel, GI pipe light grade/ operating rod with pad look arrangement and out door drop-out expulsion fuse assembly with fuse carrier fitting all as specified and directed .

Supply and fixing, installation, commissioning and testing in replacement of lightening arrestor non-linear resistance type single pole made out of porcelain brown glazed, heavy duty station class, gapless, zinc oxide type ( non - linear ) fitted with pressure relief device, arc diverting ports, grading / corona rings, discharge counter with ammeter, mounting insulator type conforming of Fe 410W (Gde E-250) discharge 65 Kiloa Amps suitable for 33000 working volts (33KV) including dismantling of old unserviceable lightening arrester complete with comprising following parameters :- (i) Nominal system voltage : 33 KV normal discharge current rating 10 KA & high discharge with 65 KA assembly. Make: Jaipuria /BHEL / Oblum or equivalent makes given in Appx 'B' duly approved by AGE (I)

Supply, install, testing and commissioning of gang operated air break isolator switch out door type triple pole revolving type and double break suitable for horizontal mounting consisting of hot dip galvanized channel iron base having 2 Nos 33 KV working pressure post type insulator in stack and 3 such stacks per pole ,copper or copper alloy high pressure heavily tinned and double contacts plated MS arcing horns capable of breaking mgnetising current complete with phase coupling bar 25 MM dia GI pipe as down rod , lever coupling and operating handle with locking arrangement as for both ON and "OFF" positions coupling connections etc suitable fo 33 KV 3 phase 50 HZs Ac supply system having 200 Amps capacity all as speicifed in IS - 1818 of Oct 1972 including interlocking with 33 KV VCB (out door type) complete all as directed. Make: Jaipuria/ BHEL/Oblum or equivalent makes given in Appx 'B' duly approved by AGE (I)

S&F in replacement for lightening arrestor non linear resistor type confirming to Fe 410 W (gde -E-250) quality "A" complete line discharge class 3 nominal discharge current 10 KA & high discharge with stand 65 KA assembly suitable for 11 KV working pressure and mounted on hot dip galvanised steel structure including all clamp nuts bolt and washers etc connecting to earth 32 x 6 MM GI strip including taking out the same complete all as specified and directed. Make: Jaipuria /BHEL /Oblum or equivalent makes given in Appx 'B' duly approved by AGE (I)

M&L for chemical to burn out the shrub/grass/ unwanted small trees etc in outfit area of electrical sub station located at AOR , 33 KV MRS and other E/M installations, mixed with water in given ratio and spread by using spray gun in given time interval as directed. (Note: Chemical sample shall be supplied in sealed container after approved by Deptt and time interval between to spray period will be given by Deptt).

Disconnecting HT/LT connections of burnt/defective copper/aluminium wound transformer 11/0.433 KV of capacity 100 KVA to 500 KVA taking down from site of installation with the help of crane and shifting the transformer to contractor’s workshop for repair, re-installing (after carrying out repair), testing and commissioning the transformers at site on full load. Complete all as specified and directed Note : 1. Crane and vehicle for taking down, loading/unloading & shifiting of transformer shall be arranged lby the contractor at his own cost. 2. Repair to transformer and parts shall be measured and paid for separaely under respective items here-in-after.

Opening up the top cover, dismantling and taking out the complete core assembly of the 11/0.433 KV transformers of capacity 100 KVA to 500 KVA for repair and taking out the burnt coils, cleaning and making good surface for rewinding complete, rewinding the same with existing size of conductor/wire for coils/limb of HT/LT including internal cleaning, removing sludge, washing and applying one coat of zinc chromate paint to inner side of the transformer body and one coat of synthetic enamel Grey paint to the external surfaces after cleaning and removing oil spot from the body, re-assembling including replacement of HT/LT coils, defective core bushing tap changing switch, gaskets, insulators, pouring of filtered/dehydrated oil, replacement of worn out bolts nuts, complete all as specified amd directed. Note: Parts like tap changer, brass bush, cork, porcelean bushing insulator shall be measured and paid separately under respective items as "supply only"and fixing of all items shall be inclusive in this.

Supply and filling new Transformer oil having die electric strength not less than 45 KV in sealed container complete including centrifuging of oil (if required ) up to getting dielectric strength not less than 45 KV complete all as specified and directed. (Note : Transformer oil will be supplied by the contractor in sealed container of approved make alongwith necessary manufacturer test certificate and purchase vouchers Make: Power oil / Savita or equivalent make given in Appx 'B' duly approved by AGE (I))

Dehydration & filtration of transformer oil/voltage stabilizer oil at site of installation for 11 KV, 433V step down transformer of any capacity and any make installed on pole/plinth mounted indoor/out door and obtaining di-electric strength minimum 50 KV (r.m.s) with in 1 minute with 2.5 mm gap with portable filtration cum dehydration machine. (Testing of di-electric strength of dehydrated transformer oil of each transformer/voltage stabilizer will be carried out in the presence of Engr-in-Charge).

M&L for rectifying and arresting the oil leakage of transformer of any capacity, disconnection of cable termination of HV& LV ends , opening the top cover by using tripod, chain and pulley after removing all fitments, replacing the components of the transformer such as gaskets, "O" rings etc. Rectify the leaks in a variety of areas such as radiator fins, flanges, circuit breakers, valves, fastener assemblies, Oil leakage through pin hole / crack joint , drain valve / radiator valve , Oil leakages through gasket joints. Applying putty/M-Sea Monoplast and gas welding where ever as required necessary complete all as directed by Engr-in-Charge & refixing the top cover and all fitments, re-fixing cable termination of the HV& LV ends complete all as specified and directed. (Note : Testing and Cost of all type of rubber gasket, "O" rings, putty/M-Seal Monoplast and gas welding where ever as required, lugs, nuts, bolts, double washers etc shall deemed to be included in the quoted unit rate).

Supply and re-filling to dehydrating agents (silica gel) re-filling in breather of transformer in any make model rating etc complete all as specified and directed.

Supply and fixing in replacement to cabin assembly of silica gel suitable for step down transformer 11/ 0.440 capacity upto 400 KVA including excess water storage bottle, clamp including silica gel filled etc in existing make model specification in all complete and directed. (Note : Quoted rates shall be including the cost of silica gel initially filling).

Supply and fixing in replacement to cabin assembly of silica gel suitable for step down transformer 33/ 11 KV capacity 1500 KVA including excess water storage bottle, clamp etc in existing make model specification in all complete and directed. Note : Quoted rates shall be including the cost of silica gel initially filling.

Supply and fixing in replacement to brass terminal studs with nuts, oil seal and washer for HV side of step down transformer 11/ 0.440 capacity rage 160 KVA to 250 KVA including replacement of gasket etc to make transformer leak proof complete in existed make model specification etc all as specified and directed.

Supply and fixing in replacement to brass terminal studs with nuts, oil seal and washer for HV side of step down transformer 11/ 0.440 capacity rage 300 KVA to 500 KVA including replacement of gasket etc to make transformer leak proof complete in existed make model specification etc all as specified and directed.

Supply only LT bush assembly brass complete with double check nuts, washers and oil seal all accessories with bushing insulators suitable for transformer capacity 100 KVA to 250 KVA.

Supply only LT bush assembly brass complete with check nuts, washers oil seal etc all accessories with bushing insulators for transformer capacity 315 KVA to 500 KVA.

Supply only new cork sheet gasket 6 mm thick superior quality on top cover plate of the transformer capacity 100 KVA to 500 KVA.

Supply only tap changer switch suitable for indoor/out door type for transformer of capacity 100 KVA to 250 KVA suitable for fixing on HV side to vary the voltage on LV side up to + 7.5% in steps of 2.5%, complete all as specified and directed.

Supply only tap changer switch suitable for indoor/out door type for transformer of capacity 315 KVA to 500 KVA suitable for fixing on HV side to vary the voltage on LV side up to + 7.5% in steps of 2.5%, complete all as specified and directed.

Supply & fixing in replacement temperature gauge stem type with range 0° –120° Celsius complete with all accessories suitable for indoor or out door transformer.

Supply and fixing in replacement Gate valve brass of 25 mm bore ISI marked in replacement of drain out valve of transformer of capacity 160 KVA to 315 KVA.

All as per description of serial item No 87 here-in-before but 32 mm bore gate valve complete all as specified and directed..

S&F in repair copper strip wound wire wound coils/limb for LT winding for 11/0.433 KV transformer of capacity 50 KVA to 315 KVA, with suitable size copper strip to match with working capacity of the transformer and all as per manufacturer’s design/specification including provision of Class ‘E’, insulation, fixing the LT coils in position including connecting electrically in core assembly complete all as specified and directed .

S&F in repair copper strip wound wire wound coils/limb for HT winding for 11/0.433 KV transformer of capacity 50 KVA to 315 KVA, with suitable size copper strip to match with working capacity of the transformer and all as per manufacturer’s design/specification including provision of Class ‘E’, insulation, fixing the LT coils in position including connecting electrically in core assembly complete all as specified and directed .

Supply only 11 KV porcelain bushing insulators for HT side out door/indoor type transformer capacity 315 KVA to 500 KVA.

M&L for Earthing complete with galvanized steel earth plate electrode 60 cm x 60 cm x 6 mm thick surrounded with charcoal and salt, buried directly in ground (earth pit not less than 2.25 metre deep below ground level) with top edge of plate not less than 1.5 metre below normal ground level connected to galvanized earth lead using GI earth strip in size 32 x6 mm means of bolts, nuts, check nuts and washers of galvanized iron or steel all as shown in electrical Plate No 3 of MES SSR Part-I connected to main switch board or main control board all as specified and testing on completion including provision of earth wire protected by galvanized iron 15 mm dia light grade pipe and watering pipe shall be 20 mm bore light grade including all excavation and earth work in any type of soil, PCC pit with pre-cast RCC cover, charcoal/salt, funnel etc complete all as directed.

(i) The concrete pit shall be PCC 1:3:6 type C-1, 40 mm thick pre cast cover slab of RCC (1:2:4) type B-1 using 20mm graded stone aggregate reinforced with 8mm TMT bars @ 10 cm C/C on both sides with suitable cast iron handle shall be provided in lieu of cast iron cover shown in electrical plate No 3 of MES SSR Part-I.

(ii) Item includes the cost of 7.50m GI pipe for protection of and earthing strip, length beyond 7.5 mtr shall be paid separately.

(iv) PCC pit shall be provided at least 500 mm 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 earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or burried in ground or drawn in conduit/pipe or fixed to pole or any other indicated situation for loop earthing etc as required of size 32 x 6 mm galvanised iron strip complete all as specified and directed.

S&F in repair of 12 Volt 150 AH,short tubular inverter battery with rugged construction maintenance free battery mounted on steel rack complete ,testing and commissioning all as specified and as directed. Make- Exide/Amarraja/Amron or equivalent makes given in Appx 'B' duly approved by AGE (I)

Supply & replace battery lead of 1 mtre length, PVC insulated multistranded copper conductor of size 25 sqmm including one side cable lugs and other side battery terminal. complete suitable to connect starter of any sizes of DG set.

Supply and fixing Inverter 12 volt 900 VA max load 756 watt, inverter type pure sine wave inverter with digital display, processor intelligent 32 bit DSP processor MCB for protection from input main complete with mounting stand suitable for inverter and Battery complete all as specified and directed by Engr-in-Charge.

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R.K.ASSOCIATES