REPAIR MAINTENANCE OF 11KV HT ELECT INSTALLATIONS INCLUDING CONNECTED ITEMS SUCH AS VCBs CT PT GOD DO FUSES CONTROL CABLES ETC AT SOUTH SIDE RUNWAY UNDER AGE EM I OF GE NW VASCO

Amount

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.

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. .

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 by Engineer-in-Charge.

Returning filling in excavated earth work including spreading, levelling, watering and well ramming in layers n.exc 25cm thick in any strata

Removing excavated soil to a distance n.exc 50m, depositing where directed at a level n.exc 1.5M above the starting point

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.

Supply and Fixing in trenches/on wall in repairs GI tubing light grade for road crossing and cable protection of the following sizes as in repairs :-

(a) 80 mm dia

(b) 100 mm dia

Material and Labour for graded coarse aggregate (broken stone or boulders) of size 40 mm in sub - station yard for laying all as directed and specified.

Supply and Fixing 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, stay wire, measured seperately (b) excavation and concrete) complete all as directed.

Material and Labour in repairs for Galvanised Stay wire of size 7/4 mm incl dismantling old wire all as directed.

Supply and Fixing in repairs for loop insulator Vitreous Porcelian white or brown of size 90 X 140 mm clearance hole 25.5 mm all as directed.

Re-Stringing only existing HT 11 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.

Supply and Fixing in repairs AAC for binding purpose of not less than 0.9mm dia for tightening the conductors on poles complete all as direcetd.

Supply and Fixing in repairs Disc type porcelain vitreous, brown or white insulator suitable for 11 KV HT working Pressure of size 145 mm height, 255 mm dia , including. one galvanised mild steel spindle, two galvanised iron washer and one GI nut complete all as directed.

Supply and Fixing in repairs Pin type porcelain vitreous,brown of white insulator suitable for 11 KV HT of working pressure of size 150mm height, 150mm dia, including one galvanised mild steel spindle, two galvanished iron washer and one GI nut complete all as directed.

Supply and Fixing in repairs Pin type porcelain vitreous,brown of white insulator to suit 1100 Volt working pressure of size 100 mm height, 65mm dia, including one galvanised mild steel spindle, two galvanished iron washer and one GI nut complete all as directed.

Supply and Fixing in repairs shackle type porcelain vitreous brown or white 1100 Volt of size, 115 mm dia and 100mm height including GI strap of size of 31 x 5 mm insulator bolt of 14 mm dia, nuts and washers for working pressure 1100 V complete all as directed.

Supply and Fixing in repairs incl testing of swing out explusion fuse isolated assembly with fuse carrier out door type 11 KV supply 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 11000 Volts grade (earthed), 3 core 95 sqmm laid in trenches/floor/duct/fixed on poles/through GI tubing in different locations / areas complete

All as per item No 22.00 here in before but of cable size 3 core 120 sqmm all as directed.

Supply and Fixing 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.

All as per item No 24.00 here in before but of size 3 core 120 to 185 sqmm

Supply and Fixing 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.

All as per item No 26.00 here in before but of size 3 core 120 to 185 sqmm

Supply and Fixing 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.

All as per item No 28.00 here in before but of size 3 core 120 to 185 sqmm

Supply and Fixing 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 and Fixing in repairs lightning arresters expulsion type complete with all fittings transmission class, discharge capacity 65 kilo amps, suitable for 11 KV complete and connecting to earth leads all as direcetd.

Supply and Fixing in repairs post insulator suitable for 11 KV HT working pressure in GOD/DO arrangements of any description all as directed.

Repairing/Servicing the Air break isolating switch HT 11 KV 200/400 Amps by replacing the defective major spares including provn of minor bolts nuts etc all as specified. Note :- Major spare will be measured & paid seperately under relevant item of Sch'A' item No. 35

Supply only 11 KV Airbreak switch spares all as directed.

(a) Male contact/moving Contact Blade

(b) Female contact/Fix Contact Jaw

(c) Tinned copper Flexible jumper 200A/400 A

(d) MS jumper carrier

(e) Back Connector plate

(f) Petroleum Jelly

Material and Labour for PVC insulated unarmoured heavy duty electric cable with copper conductor 1100 V grade with cross section area 4 Core 4 Sqmm all as direcetd.

Material and Labour for PVC insulated armoured heavy duty electric cable with copper conductor 1100 V grade with cross section area 16 Core 2.5 Sqmm all as direcetd.

Material and Labour preparation of old painted external surfaces of HT 2 pole structures consisting of cross arms, GOD assy with pipe, DO fuse assy, clamps etc., of any description and applying one coat of Aluminium paint by mannualy (Except PCC/RCC Pole) all as directed. Note for item No 39 to 41 :- This rate inclusive of painting all minor items such as clamps, brackets, nuts, bolts and washers which is not particularly mentioned in the structures & Each job will be measured and paid.

All as per item No 39.00 here in before but including Steel tubular pole or ISMB of size 150x100x6 mm 11 mtr long all as direcetd.

All as per item No 39.00 here in before but for 4 pole structure all as directed.

Material and Labour for servicing of 11KV VCB/bus coupler at various Hansa area sub stations, 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 repairsing the current, circuit panel wiring, relay testing of CT's and provision of minor spares as required complete including operational testing and commissoning all as directed. Note :- New major spare parts will be measured and paid under Sch A item No 74 (i) to (vii)

Material and Labour for carrying out primary injection test of 11 KV indoor 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 all as directed by engr in charge.

Dismantling old and burnt out PT unit 11000/110 volts draw out type epoxy resin cast type taking out contact with lead and bushing from the bus bar and PT, replacing by new one of same model suitable for 11 KV /110 V grade PT unit and re-installation and testing on completion all as directed .

Dismantling old and UNSV power pack unit 230 volts AC input and 30 volts DC out put for VCB Panel from the site, replacement of UNSV burnt out transformer, servicing, replacement of minor spares if required incl testing on installation complete all as directed.

Supply and Fixing in repairs for epoxy insulator suitable for 11 KV reel type inside HT feeder pillar box outdoor type including replacement of new nut, bolt and washer on bus bar and base complete all as specified and directed.

Supply and Fixing in repairs insulating rubber mat ISI marked of size 1 m x 2 m x19mm suitable for 11 KV at shimulater and ADR

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 as directed.

Material and Labour for reassembling in transformer body/tank and fixing accessories fins etc after through cleaning complete.

Material and Labour for replacement of the following for HT VCB 11 KV 400 A 25 KA 250MVA Make: CG as approved by GE and all as directed including dismantling old unserviceable one.

i) Closing coil 30V DC

ii) Tripping coil 30V DC

iii) Antipumping device 30V DC

iv) LED type indicator lamp assembly

v) Vaccum Interupter for indoor VCB

vi) spout incoming side

vii) spout outgoing side

viii) Connector strip 16 way

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

x) Digital type power factor indicator meter

xi) Digital type Voltmeter / Ammeter

Material and Labour for EHV grade insulating transformer oil. Make :- Power Oil.

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.

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

Material and Labour 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 11 KV grade ISI marked.

Supply only fiber glass discharge rod in three sections and aluminium head with complete accessories suitable for 11 KV of 20 feet height.

Supply and Fixing in repairs HT DO Fuse element for 11 KV system of 5 Amps.

Supply and Fixing in repairs HT DO Fuse element for 11 KV system of 10 Amps.

Supply and Fixing in repairs HT DO Fuse element for 11 KV system of 20 Amps.

Supply and Fixing in repairs HT DO Fuse element for 11 KV system of 40 Amps.

Supply and Fixing in repairs HT DO Fuse element for 11 KV system of 50 Amps.

Supply and Fixing in repairs HT DO Fuse element for 11 KV system of 60 Amps.

Supply and Fixing in repairs sealed maintenance free battery 2 Volts 100 Amps for UPS supply incl necessary connections complete all as directed.

Material and Labour 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 all as directed.

Material and Labour for taking out the MS duct cover from the cable duct chamber disconnecting the haphazardly laid serviceable HT UG cable of 3 core of 70 to 150 Sq mm from VCB/Any description taking out from cable trenches / ducts and straighten and laying in proper layers incl provn of new identification tags for each cables and connecting back to its original position incl cleaning the cable ducts all as directed.

Supply and Fixing in repairs for Breather unit with superior quality blue colour silica jel, to maintain the exact value of grade for transformer of capacity 100 KVA to 150 KVA, including taking down unserviceable complete all as specified.

All as per item No 66.00 above but 200 KVA to 250 KVA Transformer

All as per item No 66.00 above but 315 to 400 KVA Transformer

All as per item No 66.00 above but 500 KVA Transformer

All as per item No 66.00 above but 750 KVA Transformer

Supply and Fixing in repairs HV insulator with studs nut & washers suitable for 11 KV HV side of transformer 100 KVA to 150 KVA

All as per item No 71.00 above but 200 KVA to 250 KVA Transformer

All as per item No 71.00 above but 315 to 400 KVA Transformer

All as per item No 71.00 above but 500 KVA Transformer

All as per item No 71.00 above but 750 KVA Transformer

Supply and Fixing in repairs LV insulator with studs nut & washers suitable for11 KV/433V LV side of transformer of Capacity 100 KVA to 150 KVA

All as per item No 76.00 above but 200 KVA to 250 KVA Transformer

All as per item No 76.00 above but 315 to 400 KVA Transformer

All as per item No 76.00 above but 500 KVA Transformer

All as per item No 76.00 above but 750 KVA Transformer

Servicing and repairsing / carrying out maintenance of 11KV/433V step down indoor / outdoor type transformer including the following works for 100 to 750 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) Material and Labour 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 81 :- 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.

Material and Labour in repairs for rewinding of transformer 11 KV / 440 Volts of capacity step down out door / indoor type of 100 KVA to 750 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 all as directed

Taking out the existing serviceable Post/disc/pin insulator of 11 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 directed

Taking out the old HT 11 KV UG serviceable cable of 3 core 95/120 Sq mm from trenches/ floors/ walls and relaying/diversion/jointing the same in the new trenches/new location as directed and connecting all as directed

Material and Labour 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.

Material and Labour 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.

Material and Labour 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.

Material and Labour 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)

Supply and Fixingof cubicle type CPRI approved HT feeder piller box factory made, totally enclosed, dust & vermin proof (protection class IP 54), (front opening) with suitable aluminium bus bar of 11 KV capacity propper locking arrangement made of MS angle iron frame size of 40mmx40mmx6mm and CRCA sheet of 3.15 mm thick duly painted with two coats of synthetic enamel paint over a coat of red oxide primer. of size not less then 0.8x0.8x0.8 Mtr. complete all as specified as directed by Engr-in-Charge. The cost of the weilding or fixing with existing HT panel and removing the old is deemed to be included in the quoted rate of above item.

Bharat Sales Corporation

Shree Ram Enterprises

Shine Enterprises

Prabha Electricals and Communications