REPAIR MAINT OF 33 KV RMU VCBS CT PT GOD AND CONNECTED ITEMS INS HANSA AND MAINT OF 33 KV OVER HEAD LINE FROM TOWER NO 5 TO INS HANSA SOUTH SIDE OF RUNWAY UNDER AGE EM I OF GE NW VASCO

Amount

M&L for excavation in trenches not exc 1.5 Mtr wide and not exc 1.5 Mtr deep in hard/dense soil getting out and levelling of bottom surface to required level for laying of UG cable complete all as specified and directed.

M&L for excavation in trenches not exc 1.5 Mtr wide and not exc 1.5 Mtr deep in soft/disintegrated rock getting out and levelling of bottom surface to required level for laying of UG cable complete all as specified and directed.

M&L for excavation in trenches by cutting of road crossing/PCC hard standing, under boundary wall for laying of pipe/cable including making good the existing surface with same finish to match the original finish complete all as specified and directed.

M&L for returning filling in excavated earth work including spreading, levelling, watering and well ramming in layers n.exc 25cm thick in any strata complete all as specified and directed.

M&L for removing excavated soil to a distance n.exc 50m, depositing where directed at a level n.exc 1.5M above the starting point complete all as specified and directed.

Supplying & Laying in trenches Clear Sand for cushioning under ground cable 8 cm below and 15 cm above complete in level all as specified. (punned thickness of sand will be measured and paid)

Supply and lay un-reinforced precast concrete cable covers, class EHV , type- I with peak, size 300mm x 180mm x 40mm, all as specified and directed.

S & F in trench/on wall in repairs GI tubing light grade for road crossing and cable protection of the following sizes 100 mm Dia as in repairs complete all as specified and directed.

Dismantling of existing old unserviceable ACSR of any size from any descritpion, material and labour for providing new ACSR conductor all as specified and directed incl stringing through existing RCC poles, fixing in insulators, jumpers with polythene pipe, aluminium binding wire etc complete of different sizes all as directed. Note : Rates for new Aluminium cable terminal lugs are included in this rate.

S&F in repairs Galvanaised Iron cross arms channel, bracing, support, clamps etc fabricated structured steel, sections, including nuts, bolts, washers etc and cutting to required length beat to any shape drilling holes, fixed on poles or jointed by means of elect welding complete incl painting with 2 coats of aluminum paint over a coat of red oxide primer after preparation of surfaces incl taking down / dismantling the old items complete all as directed.

Dismantling of existing old unserviceable earth wire and gradle guard of any size form the position, material and labour for providing new GI wire 4 mm dia (8 SWG) on poles to continuous earth wire and cradle guard etc, all as directed.

Dismantling old unserviceable stay assy complete, material and labour for new stay assembly complete with 20 mm dia stay rod with accessories shown in electric plate No 01 incl stay clamp, loop insulator excavation and concrete measured in this quited Rate complete all as directed.

M & L in repairs for Galvanised Stay wire of size 7/4 mm incl dismantling old wire complete all as specified and directed.

Re-Stringing only existing HT 33 KV OH line/Jumpers including dismantling of existing old binding wire complete. Note: (a) Restringing of each wire shall be measured as in RM (b) Supply only binding wire shall be measured and paid separately.

S & F in repairs incl testing of swing out explusion fuse isolated assembly with fuse carrier out door type 11 KV supply 50 Amp ( DO Fuse ) complete all as specified and directed.

Supply & Lay , testing and commissioning XLPE cable , PVC insulated, screened PVC bedded galvanised steel strip or wire armoured electric power cable, heavy duty with aluminium conductor 11000 Volts grade (earthed), 3 core 95 sqmm laid in trenches/floor/duct/fixed on poles/through GI tubing in different locations / areas complete

Ditto all as per item No 16 here in before but of cable size 3 core 120 sqmm all as directed.

S & F in repairs cable jointing kit for 11KV grade cable for Outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Aluminium conductor cable of size 50 to 95 sqmm complete all as specified and directed.

Ditto all as per item No 18 here in before but of size 3 core 120 to 185 sqmm complete all as specified and directed.

S & F in repairs cable jointing kit for 11KV grade cable for Indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Aluminium conductor cable of size 50 to 95 sqmm complete all as specified and directed.

Ditto all as per item No 20 here in before but of size 3 core 120 to 185 sqmm complete all as specified and directed.

S & F in repairs cable jointing kit for 11KV grade cable for Straight through joint heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Aluminium conductor cable of size 50 to 95 sqmm complete all as specified and directed.

Ditto all as per item No 22 here in before but of size 3 core 120 to 185 sqmm complete all as specified and directed.

S & F in repairs of Plates (plain or chequered) channels, square cut or notched (ordinary and counter sunk) forming holes, without any attachment cut to required shape and size for cable duct or any other description complete all as directed.

Taking down Triple pole mechanism complete with DO Fuse unit from the site, supply and install DO fuse unit triple pole, mechanically operated, mounted on insulator and steel frame,with opertaing mechanism worked from ground level with GI pipe medium grade, for current rating upto 200 Amps and Air break (switch) insulator suitable for HT 11 KV out door type 50 Amp ( DO Fuse ) all as directed..

Supply & Lay , testing and commissioning XLPE, cable , PVC insulated, screened PVC bedded galvanised steel strip or wire armoured electric power cable, heavy duty with aluminium conductor 33000 Volts grade (earthed), 3 core 185 sqmm laid in trenches/floor/duct/fixed on poles/through GI tubing including brass cable glands complete

S & F in repairs drop out (DO) fuse unit expulsion type outdoor three pole 200 Amp suitable for HT 33 KV, comprising of insulators, steel base mounting frame , GI nut bolts etc with 30A , HT barrel type fuse complete

S & F in repairs incl testing, and commissioning of gang operated type air break switch horizontal/vertical type type mounting complete, double break and operation rod of suitable length 400 A capacity and suitable for 33 KV HT supply, complete all as specified and directed.

S & F in repairs lighting arrestor Zinc oxide gap less type, station class suitable for 33 KV/10 KA complete with all fittings all as specified and directed .

S & F in repairs single post insulator, 33 KV with mounting spindle etc. complete all as specified and directed.

S & F in repairs Pin insulator, 33 KV with mounting spindle etc. complete all as specified and directed.

S & F in repairs disc insulator, 33 KV with hardware fittings etc. complete all as specified and directed.

M & L for servicing of 33 KV VCB at Hansa MRS, dismantling cleaning greasing the complete VCB with attached relays bus bar etc insulation testing, setting the contact gap by measuring as required, reassembling the VCB and reinstalling back to its original position checking and repairsing the current circuit panel wiring , relay testing and provision of minor spares as required complete including operational testing and commissoning complete all as specified and directed. Note:- New major spare parts will be measured and paid under this items

M & L for carrying out primary injection test of 33 KV Indoor/Outdoor type current transformer (Set of three) of VCB's by using standard injection test method and checking the electrical circuits for fault condition and proper functioning incl submitting the test report complete all as specified and directed.

M & L for primary injection test for 11 KV or 33 KV Potential transformer by applying low voltage on HV Side including testing of secondary wiring for its healthiness and submitting the test report complete all as specified and directed.

Supply, Fixing and testing of current transformer epoxy/resin filled of 33 KV capacity ratio 100-50/5 or 200-100/5 class=5P, 10/1 15 VA for MOCB and including dismantling old existing CT all as directed.

S & F in repairs insulating rubber mat ISI marked of size 1 m x 2 m x19mm suitable for 11 KV at Hansa 33 KV MRS complete all as specified and directed..

Disconnecting of all incoming and outgoing elect connections/earthing strips from defective/repairsable 33/11 KV step down outdoor type transformer of capacity 2MVA oil cooled type from 33 KV Power Main Recieving Station at INS HANSA, shifting to Vasco workshop for repairs/rewinding purpose in a load carrier vehicle by using required capacity crane and bring back the same after repairs works and re-installation in the same place including testing, commissioning on site/area , connecting the all removed incoming and out going elect cable connections complete all as specified and directed.

Dismantling 33/11 KV 2 MVA capacity Transformer body, opening top cover and lifting core and winding from body in presence of Engr-in-charge and jointly checking all defective items/windings for repairs work complete all as specified and directed.

Dismantling damaged, defective Limb windings ie HV/LV after removal core assembly of capacity 2 MVA Transformer complete all as specified and directed.

M & L for re-assembling the winding and core and fixing winding accessories complete all as specified and directed.

Drying of core and winding assembly in suitable size oven and in Vacuum chamber complete as required to meet the desired result for equipment complete all as specified and directed.

M & L for reassembling in transformer body/tank and fixing accessories fins etc after through cleaning complete all as specified and directed.

Taking out/Draining out of any condition of insulating oil from transformers of capacity 2 MVA carefully and kept fully secured in seal tight containers complete as directed. (Existing good old Oil will be reused/refilling after necessary filteration & dehydration) Note : - 1. Filteration & dehydration work will be measured and paid separately. 2. A separate container/containers will be use for store to insulating oil separately for each transformer which to be re- used.

M & L for EHV grade insulating transformer oil complete all as specified and directed.

Filteration of insulating oil with high pressure vaccum filteration plant, after filtration attains BDV upto 60 KV for Transformer, OCB and MOCB complete all as specified and directed.

M & L for replacement of the following for outdoor VCB 33 KV 800 A 750 MVA fault level 36V-26/2000 make: Crompton Greaves complete all as specified and directed.including dismantling old unserviceable one.

Closing coil 30V DC

Tripping coil 30V DC

Anti pumping device 30V DC

33 KV porcelain bushing for VCB Top

33 KV porcelain bushing for VCB bottom

Connector strip 16 way

Earth Fault and over current relay of L & T Model No MC61A 24-110V

Digital type power factor indicator meter

Digital type Voltmeter / Ammeter 96 x 96 mm size

S&F in repairs strip type heater 40/60 watt approx 4"/6" in length complete all as specified and directed.

M&L for PVC sleeves suitable for LT/HT ACSR conductor/jumper in any type in R Y B Colours superior quality inserted over the ACSR all as directed.

Supply only rubber hand gloves of 33 KV grade ISI marked complete all as specified and directed.

Supply only fiber glass discharge rod in three sections and aluminium head with complete accessories suitable for 33 KV of 20 feet height complete all as specified and directed.

S & F in repairs HT DO Fuse element for 33 KV system of 40 Amps complete all as specified and directed.

S & F in repairs HT DO Fuse element for 33 KV system of 50 Amps complete all as specified and directed.

S & F in repairs sealed maintenance free battery 2 Volts 100 Amps for UPS supply incl necessary connections complete all as directed.

M & L for preparation of old cement coated surface, cleaning the surface of the RCC pole (HT) 11 Mtr long in 1/2/4 pole structures above the ground level incl coping area with 2 coats of ACC exterior Emulsion paint over a coat of cement primer after preparation of surface including 12 cm black paint around the pole numbers/letters in white columns complete all as specified and directed.

M & L for rewinding of 33/11 KV transformer's 1 Limb coil (Limb coil consists 03 in series coils in same phase) of HV winding ie for 33 KV of capacity 2 MVA transformer with using super enamelled copper wire as per existing gauge/size same to manufacturer design complete all as specified and directed.

M & L for rewinding of 33/11 KV transformer's of 1 Limb coil (Limb coil consists 03 in series coils in same phase) of LV winding ie for 11 KV of capacity 2 MVA transformer with using super enameled copper wire as per existing gauge/size same to manufacturer design complete all as specified and directed.

M & L for servicing and repairsing of OLTC (ON load Tap changer) for 33 KV Transformer by disconnecting and dismantling all burnt out cables/fuses/relays/contactors, toggle switch/knobs/indicators/reading units and other accessories repairs/replace the unserviceable items and making the OLTC serviceable condition and connecting back to its original position all as directed.

S & F in repairs for Breather unit with superior quality blue colour silica jel, to maintain the exact value of grade for transformer of capacity 33/11 KV type 2 MVA Transformer, including taking down unserviceable complete all as specified.

S & F in repairs HV insulator with studs nut & washers suitable for 33 / 11 KV, HV side of transformer 2 MVA complete all as specified and directed.

S & F in repairs LV insulator with studs nut & washers suitable for 33/11 KV LV side of transformer of Capacity 2 MVA complete all as specified and directed.

Servicing and repairsing / carrying out maintenance of 33KV/433V step down indoor / outdoor type transformer including the following works for 100 KVA capacity all as directed :- (a) Removing from platform and disconnecting electrical connection from HT and LT side including transporting to work shop. (b) Dismantling the transformer, drain out transformer oil, lift the cover and coil assembly, keep up the assembly in heat oven upto the preparation of inside chambers by cleaning inside, scraping complete all around old parts of the transformer. (c) M & L for two coats of oil resistance painting internal (inside transformer) over a coat of red oxide primer and painting the outer side of the transformer by using spray paint complete with one coat incl preparation of old surfaces complete. (d) Cleaning the core laminations assembly by oil complete, removing the carbon sediments / dust in the coil and core gently without making any damage to coil and core.

(e) Re-assembling all dismantled parts including provision of new gasket, nut, bolts, refilling with transformer oil and transporting back to original location including electric connection testing and commissioning complete. Note for item No 62 :- i). Oil filtration & supply of new oil will be measured and separatelyunder relevent item of this Schedule. ii). All petty parts including nut, bolts, steel / rubber gasket minor weldings are deemed to be included in the quoted rate. iii). The rate for transport and lifting of transformer by crane should be deemed to include in the rate quoted.

M & L in repairs for rewinding of transformer 33 KV / 440 Volts of capacity step down out door / indoor type of 100 KVA, including dismantling, transport to workshop, opening the body assy, drain out the oil, removing the core coil assembly from transformer remove the weak / burnt out unserviceable HT / LT winding assembly rewinding with correct gauge super enamelled copper wire of suitable class including drying, baking etc complete re-assembling the primary and secondary coil in core, re-assembling the transformer complete refill with transformer oil, installation and commissioning in the existing position complete and all as specified and directed by Engr-in-Charge. (Note : Each winding of HV / LV limb side will be measured separately and paid individually)

Supply and fill new silica jel, superior quality in the breather unit of transformer incl taking out the old unserviceable one complete all as specified and directed.

Taking out the existing serviceable Post/disc/pin insulator of 33 KV capacity carefully and re-fixing the same in the new cross arms/structure incl replacement of new hardware such as GI spindle, nut, bolt and washers complete all as specified and directed.

Taking out the old HT 33 KV UG serviceable cable of 3 core 185 Sq mm from trenches/ floors/ walls and relaying/diversion/jointing the same in the new trenches/new location as directed and connecting complete all as specified and directed.

M & L for Earthing complete with copper earth plate electrode 600 x 600 x 3.15 mm thick buried directly in ground earth pit not less than 2.25mtr deep below normal ground level with top edge of the plate not less than 1.5 mtr below normal ground level connected to copper strip size 20 x 3 mm thick by mean of nuts/bolts, check nuts and washers of brass as shown in electrical plate No. 5 of SSR part-I including necessary excavation and earth work, GI Pipe 15 mm bore light grade for watering with Funnel, wire mesh and protection to earthing strip shall be provided with GI pipe light grade 32 mm dia up to 7.5 mtr from the earth plate electrode and refilling of soil including adequate quantity of charcoal dust and common salt etc & earth work in any strata, PCC pit chamber in cement mortar 1:3:6 type C-2 with 40 mm thick Precast RCC cover slab 1:2:4 type B with 8 mm dia TMT bar and handle with lifting hooks including testing any type complete all as specified and as directed.

M & L for painting of HT panel of any description with one coat of synthetic enamel paint of standard colour code over the existing painted surfaces after preparing the old painted surfaces by using spray gun all as directed.

M & L for removing vegitation, grass, scrubs and bushes growing in Sub station yard along with fancing by mannually / mechanically and keep the sub station yard neat and clean complete all as specified and as directed. Note :- Unit rate quoted deemed to include to keep the installation neat and clean through out the period of contract and each cleaning will be measured and paid separately. cutting of grass is month wise measured and paid separeatly.

M & L for Cutting and trimming of tree branches 3 mtr all around of any size which is obstructing illumination of street light and touching LT / HT Over head line by using required tools and plants incl removing trimmed tree branches. (Note : Each cleaning will be measured and paid separetely)

S & F in repairs cable jointing kit for 33KV grade cable for Indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Aluminium conductor cable of size 185 sqmm.

S & F in repairs cable jointing kit for 33KV grade cable for Outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Aluminium conductor cable of size 185 sqmm.

S & F in repairs cable jointing kit for 33KV grade cable for Straight through joint heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Aluminium conductor cable of size 185 sqmm complete all as specified and directed.

Carry out Material/machineries labour for foult finding of 33 KV or 11 KV HT under ground cable of length up to 1.5 KM in case of cable foult such as short circuit/burn out/earth foult etc including carryout necessary hypot test by injection high voltage up to 50 KV complete all as specified and as directed.

M/S MANOJKUMAR M NAGARKATTE

TAKSHASHILA ELECTRICALS