REPAIRS AND MAINT OF HT NETWORK INCLUDING TRANSFORMER AND OTHER ASSOCIATED WORKS UNDER GE GOLCONDA

Amount

Supply and replacement of stringing and fixing ACSR Conductor reinforced of any size and including binding using ACSR conductor on insulator on overhead line complete all as specified and directed.

Supply and replacement of cross arm bracings, supports, clamps and back plates fabricated from structural steel sections and including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of two coats of aluminium paint over a coat of zinc chrome primer complete all as specified and directed.

Supply and replacement of disc type insulator, porcelain, vitreous, 145 mm high and 255 mm dia ball and socket type, white, brown or green, single disc assembly for working pressure 11000 Volts, conforming to IS-731 and IS-3188 and including tension clamp complete all as specified and directed.

Supply and replacement of HT 11 KV, 150 mm height and 150 mm dia pin type insulator, porcelain, vitreous, white / brown / green, conforming to IS-2486 for 11000 Volts grade and including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut complete all as specified and directed.

Supply and replacement of stay assembly complete with all accessories as shown in electrical plate No. 1 of SSR Part-I using 20 mm dia stay rod and including necessary excavation and PCC work complete all as specified and directed.

Supply and replacement of loop type insulator, vitreous porcelain, white, brown or green, large size with overall dimension 90 x 140 mm clearance of hole 25.5 mm complete all as specified and directed.

M&L galvanised stay stand, size 7 / 3.15mm complete all as specified and directed.

M&L steel tubular swaged pole complete with cast iron base plate, finial taper plug, bolts, nuts and screws as specified type 410 SP-55 (11 m long) conforming to IS-2713 (Part-I & II) and including painting of pole with two coats of aluminum paint over a coat of red oxide primer from top of the pole to 1.5 m above the bottom of the pole, painting with two coats of black paint over a coat of red oxide primer upto 1.5m from bottom of the pole and dismantling of existing pole complete all as specified and directed.

M&L prestressed concrete pole, 11 m long 152 mm x 152 mm at top and 152 mm x 260 mm at bottom, class 9 and including dismantling of existing pole complete all as specified and directed.

Supply, install, testing and commissioning single pole lightening arrestor, gapless metal oxide out door type complete with all fittings, distribution class, discharge capacity 30 KA suitable for 11000 Volts grade and including necessary connection and fittings all as per IS-3070 Part-III and IEC 1994 and dismantling of existing lightening arrestor complete all as specified and directed.

Supply, laying, connecting and testing XLPE insulated (Earthed) cable in trenches / or fixed on pole etc in screened PVC bedded galvanized steel strip or wire armoured electric power cable (heavy duty) with stranded aluminium conductor, 11000 Volt grade, cross sectional area 95 Sqmm, 3 Core conforming to IS-7098 (Part-II)-1985 and including taking down complete all as specified and directed. Note: Excavation & earth work shall be measured and paid separately

All as per Sl. Item No. 11 above but size 120 Sqmm, 3 Core

Supply and replacement of cable jointing kit for 11 KV (Earthed) grade cable for outdoor end termination heat shrinkable type joint complete with jointing material and accessories suitable for 3 core 50 sqmm to 95 sqmm XLPE armoured aluminium conductor cable complete all as specifide and directed.

M&L cable end termination, heat shrinkable, outdoor type, suitable for 3 core 120 to 185 Sqmm HT, 11 KV cable with necessary lugs complete all as specified and directed. (Note:- Earth work excavation, sand cushioning and brick protection shall be measured and paid separately under relevant items of this schedule )

M&L HT 11 KV straight through joint, heat shrinkable type, suitable for 3 core 50 to 95 Sqmm size cable complete all as specified and directed. (Note:- Earth work excavation, sand cushioning and brick protection shall be measured and paid separately under relevant items of this schedule )

All as per Sl. Item No. 15 above but size 3 core 120 to 185 Sqmm

Supply and replacement of 100 mm bore galvanised iron tubing, light grade with all fittings for passing of cables under ground complete all as specified and directed.

Supply and replacement of triple pole mechanically operated air break isolator (GOD), horizontal mounting, rotating type, mounted on insulator and steel frame with operating mechanism worked from one meter above GL and including gun metal moving contacts and spring loaded gun metal fixed jaws, knife copper jumper strip etc, suitable for 11000 Volts grade, 50 Hz, with 9 insulator of rating upto 200 Amps complete all as specified and directed.

M&L servicing of horizontal / vertical mounted GOD and including greasing of all moving parts, tightning of male and female contacts and all connected parts of GOD to make it operate smothly complete all as specified and directed.

Supply and replacement of drop out fuse single pole mounted on insulator, 11000 Volts grade double pole steel frame of current rating 50 Amps complete all as specified and directed.

M&L tightening and straightening of HT overhead line of ACSR conductor of 3 Phase and including GI wire of any size and span of upto 45 m by disconnecting and removing from insulators and tightening the conductor by using rope, chain pulley block etc, and binding the conductor on insulators with and including binding wire and jumpers of ACSR complete all as specified and directed.

M&L danger notice plate of 1.6 mm thick mild steel sheet, vitreous enameled white, with letters of HT 11KV / transformer capacity and conventional skull and bones in signal red colour and fixed with MS clamps, bolts and nuts of approved size for HT, 25 x 20 cm size and including dismantling complete all as specified and directed. Note : HT 11KV / Transformer Capacity should also be mentioned on Danger Notice plate.

M&L underground HT Cable fault locating testing with appropriate cable fault locator machine from authorised company complete all as specified and directed. Note : Quoted rate is deemed to be include cable fault testing and transport of machinery.

Supply and replacement of brass terminal plate for mounting male contact of air break switch insulator and including GI nuts and bolts washers etc, as required complete all as specified and directed.

Supply and replacement of male contact for air break switch complete all as specified and directed.

Supply and replacement of female contact for air break switch complete all as specified and directed.

Supply and replacement of post insulator for air break switch with metal part suitable for HT 11 KV conforming to IS-5572-1972 complete all as specified and directed.

Supply and replacement of DO insulator suitable for 11 KV with metal part conforming to IS-5572-1972 complete all as specified and directed.

Supply and replacement of dropout fuses top / bottom contact complete all as specified and directed.

Excavation in trenches not exceeding 1.50 m wide and n.exc 1.5 m in depth for foundation of poles, cable etc, not exc. 10 sqm on plan and getting out in hard/dense soil and including taking out brick protection complete all as specified and directed.

Returning, filling in, including spreading, leveling, watering and well ramming in layers not exc. 25 cm thick complete all as specified and directed.

Removing excavated materials (soils) not exc. 50 m and depositing where directed at a level not exc.1.5 m above the starting point complete all as specified and directed.

Supply and spread sand cushioning to under ground cable for protection with fine river sand and provide required cover after punning down complete all as specified and directed. Note: Punned thickness after punning only will be measured and paid.

Supplying and laying reinforced precast concrete cable cover class HV, Type 1 flat of size 300 x 180 x 40 mm complete all as specified and directed.

M&L hardcore of broken stone of boulder of gauge not exc. 63 mm deposited, spread and levelling in layers not exc. 15 cm thick watering and ramming to true surface complete all as specified and directed.

M&L cleaning thoroughly HT steel tubular poles of any height and any description with necessary cleaning agent including scrapping of old corroded paint dirt/ rust carefully and including applying one coat of aluminium paint and marking of pole numbers and applying one coat of colour wash on pole coping complete all as specified and directed .

All as per Sl. Item No. 36 above but two pole structure

All as per Sl. Item No. 36 above but four pole structure

Supply and replacement of cable route indicator made of GI round plate 100 mm dia (marked with HT 11 KV Cable) fixed on and including GI angle 25 x 25 x 5 mm (total length 500 mm), height 200 mm above GL and 300 mm below GL shall be inserted on pit of size 200 x 200 x 300 mm, grouted in PCC 1:2:4 type B1 complete all as specified and directed. Note: The quoted rate is deemed to be include for necessary earth work and PCC.

Cutting & trimming of tree branches of any girth and size touching to overhead lines and including cleaning the distance 1.5 m on both sides of overhead line with in a gap of span upto 50 m each and removing the same cleaning the site complete all as specified and directed. NOTE: Gap of span upto 50 m is measured as one Job

Disconnecting defective oudoor / indoor power distribution transformer of capacity upto 100 KVA from HT / LT and earth connection andincluding taking out from two pole structure / plinth and removing out complete transformer oil, storing the same in suitable containers (to be provided by contractor), opening top cover and lifting up the core assembly carefully to check the condition of transformer winding core, refixing the same after repair, refilling the transformer oil after dehumidification and filteration (dehumidification and filteration to be measured and paid separately under respective items), checking of leakage of transformer body and welding works as required for making transformer body leak proof, transportation of transformer from site to work shop and re-installing the same at any site and painting of transformer complete all as specified and as directed. Note : Supply only materials i.e.rewinding / transformer oil / bushes etc, shall be measured and paid separately.

All as per Sl. item No. 41 above but 125 KVA and up to 160 KVA

All as per Sl. item No. 41 above but 200 KVA to 250 KVA

All as per Sl. item No. 41 above but 300 KVA

All as per Sl. item No.41 above but 500 KVA

Supply and replacement of the burnt out HT winding of transformer of capacity upto 500 KVA and including with braided copper conductor to match with the existing gauge and No of turns complete all as specified and directed.

All as per Sl. item No. 46 above but for LT windings

Supply and replacement of burnt out / damaged insulation of transformer of capaciy upto 500 KVA LV winding complete all as specified and directed. Note: Quantity is measured on insulation carried out on each Kg of LV winding.

M&L after completion of rewinding of tranformer HT winding up to 500 KVA, the rewinded each core along with winding is kept in oven with constant temparature of 80°C for 48 hours for better insulating process complete all as specified and directed.

Supply and replacement of silica gel breather with and including silica gel as per the existing size / model complete all as specified and directed.

Supply and replacement of temperature gauge as per the existing size / model complete all as specified and directed.

Supply and replacement of brass LV bushes, nuts, check nuts etc, as per existing for transformers of capacity 63 KVA to 100 KVA complete all as specified and directed.

All as per Sl. item No. 52 above but 125 KVA to 160 KVA.

All as per Sl. item No. 52 above but 200 KVA to 250 KVA

All as per Sl. item No. 52 above but 300 KVA to 500 KVA

Supply and replacement of brass HV bushes, nuts , check nuts etc complete as per the existing size / model, for transformers of capacity up to 500 KVA complete all as specified and directed.

Supply and replacement of LV side insulators as per existing size / model, for transformers of capacity 100 KVA to 250 KVA complete all as specified and directed.

Supply and replacement of synthethetic rubberised cork sheet gasket 1/4" thick suitable for main body of transforemr of capacity 63 KVA to 125 KVA complete all as specified and directed.

All as per Sl. Item No. 58 above but 160 KVA to 250 KVA.

All as per Sl. Item No. 58 above but 300 KVA to 500 KVA

Supply and replacement of HT OFF load tap changer with tapping arrangement 2.5% to 3.5% and on normal tapping of transformer capacity 63 KVA to 100 KVA complete all as specified and directed.

All as per Sl. item No. 61 above but 125 KVA to 250 KVA.

All as per Sl. item No. 61 above but 300 KVA to 500 KVA

Dehumidification and filteration of transformer oil at different locations by dehumidification plant and including testing of oil samples both before and after filteration. The dielectric strength of the transformer oil shall be not less than 40 KVA with 2 mm gap after filtration complete all as specified and directed. Note : (a) The qoated rate shall be deamed to include necessary T&P for collection of transformer oil sample, testing Kit, filteration plant and also include for making necessary connection to filtration plant from transformer and switch gear. (b) Test result obtained shall be recorded and produced to Engineer-in-charge and kept in record.

Supply and filling transformer oil low viscosity of approved make / quality with rupturing capacity 60 KV for 60 Seconds suitable for 11 KV tansformer as per IS 335 of 1983 for topping up / replacement complete all as specified and directed. Note : The Transformer Oil shall be ISI Marked and brought at site in sealed container only.

Supply, fix, connect commission and test power capacitor bank MPP out door type operating, 3 phase 415 volt AC suply 50 HZ conformed to IS:2834 and including necessary bolts and nuts, earth strip connected from LT panel to capacitor bank, suitable copper cable single core multistranded with necessary lugs for inter connection of capacitor bank 5 KVAR and taking down complete all as specified and directed.

All as per Sl.item No. 66 above but 7.5 KVAR

All as per Sl.item No. 66 above but 10 KVAR

All as per Sl.item No. 66 above but 20 KVAR

Supply and replacement of capacitive duty contactor for capacity 1 KVAR to 3 KVAR capacitor bank complete all as specified and directed.

All as per Sl.item No.70 above but 5 KVAR to 10 KVAR

All as per Sl. item No. 70 above but 20 KVAR

M&L earthing complete and including galvanised steel earth plate electrode of size 60 cm x 60 cm x 6.3 mm buried directly in ground (earth pit not less than 2.25 m deep below the normal ground level) with top edge of the plate not less than 1.5 m below normal GL connected to GI earth strip 32 mm x 6 mm by means of GI bolts, nuts, check nuts and washers and earth strip protected by 40 mm dia GI pipe medium grade and connected to main distribution board / earthing test point all as shown on electrical plate No.3 of SSR Part I, testing complete all as specified and directed. Notes: The unit rate shall also include for excavation, earth work in hard / dense soil, PCC 1:3:6 mix, cement earth pit and pit cover, GI funnel with watering pipe, wire mesh, protection pipe for earth lead upto 7.50 m long. Earth strip and protection pipe beyond 7.5 m shall be measured and paid separately.

All as per Sl. item No. 73 above but GI strip 25 × 4 mm as earthing lead

All as per Sl. item No. 73 above but copper plate 60 cm x 60 cm x 3.15 mm thick electrode and 20 x 3 mm copper strip as earthing lead.

M&L earth continuity conductor of 32 x 6 mm GI strip fixed by means of bolts, nuts, check nuts and GI washers complete all as specified and directed.

M&L earth continuity conductor of 25 x 4 mm GI strip fixed by means of bolts, nuts, check nuts and GI washers complete all as specified and directed.

M&L synthetic insulating mat (rubber matting), ISI Marked suitable for 11 KV electrical grade of size 2 m x 1 m x 25 mm thick chequered top, ISI marked to be laid in front of LT panel board complete all as specified and directed.

Disconnecting defective oudoor / indoor power distribution transformer of various sizes/capacties from HT / LT and earth conection and removing out complete transformer oil, storing the same in suitable containers (to be provided by contractor) opening top cover and to check the condition of LV, HV bushes and gasket kit and replacing with new LV, HV bushes and gasket kit and refixing the transformer top cover after filling the transformer oil and dehumidification and filteration (dehumidification and filteration to be measured and paid separately under respective items ) of transformer of capacity 63 KVA to 125 KVA complete all as specified and directed. Note : Supply only LV / HV bushes, gasket kit and oil filteration is measured and paid separately.

All as per Sl. item No. 79 above but 160 KVA to 250 KVA.

All as per Sl. item No. 79 above but 300 KVA to 500 KVA.

M&L cutting the road, hard standing of approx depth 1.2 m made of concrete or premix carpet, WBM, soling and moorum filling and including necessary excavation for laying of cables and making good as per existing surface complete all as specified and directed.

M&L PCC for foundation, filling and mass concrete type D2 1:4:8 with 40 mm graded stone aggregate for steel tubular swaged poles complete all as specified and directed.

M&L PCC for foundation, filling and mass concrete type C2 1:3:6 with 40 mm graded stone aggregate for steel tubular swaged poles complete all as specified and directed.

M&L PCC coping, type B1 1:2:4 with 20 mm gradedstone aggregate and including necessary form work complete all as specified and directed.

L and S ENTERPRISES (BID ID -3376790)

OM SAI POWER SYSTEMS (BID ID -3376709)

Sri Lakshmi Enterprises (BID ID -3377149)