REPAIR MAINTENANCE OF HT NETWORK HT UG CABLE OVER HAULING and REPAIR TO TRANSFERMERS WITH GODS FEEDER PILLAR AND INSTALLATION EARTHINGS AT MIL STATION

Amount

Excavating in trenches not exceeding 1.5m wide and not exceeding 1.5 m in depth for foundation of pole, laying of cables etc in soft/loose soil and getting out.

All as per item No 1 above but exceeding 1.5 m not exceeding 3 m in depth

Returning filling in including spreading, leveling, watering and well ramming in layer not exc 25 cm.

Removing excavated material not exc 50 mtr and depositing where directed at a level not exc. 1.5 m above the starting point.

M&L for dry and fine sand filling in trenches below and above the cable for cushioning to underground cable including punning down the sand gently all as specified and directed.

Supply and laying sub class burnt bricks as cable protection cover length of bricks 230x115x75mm laid perpendicular to cable all as specified and directed.

Laying only serviceable bricks of size 230x115x75 mm as cable protection cover laid perpencticular to cable

Disconnecting & taking down 11KV/433 volts unserviceable transformer of capacity 100/63 KVA from two pole structure (From Mily Station Gandhinagar) and transport to civil workshop including opening and dismantling for rewinding / repairing etc and reassemble after repair and reinstall at same location including replacement of unserviceable nuts, bolts and washers, etc and connecting, testing etc complete all as specified and directed. Note: - (i) The quoted rates shall be deemed to include for cost of crane for taking down transformer and cost of transportation of transformer to workshop and vice versa including all arrangement. (ii) Cost of HT / LT winding and other connected spare parts for repair will be measured & paid separately under respective items of schedule.

M&L, in repairs, rewinding of the cores of transformer with mass impregnated copper winding wire of appropriate gauge with thermal class 'E' insulating material and varnishing complete all as per specified and directed.

S&F, in repair, LT bush insulator suitable for 100/63 KVA capacity of transformer.

S&F, in repair, LT bush (rod) spindle of brass complete with washer and nut suitable for existing size and lengths of 100/63 KVA capacity of transformer complete all as per specified and directed.

S&F, in repair, HT bush insulator of 11 KV rating for outdoor transformer suitable for 100/63 KVA capacity transformer complete all as per specified and directed.

S&F, in repair, HT bush (rod) spindle made out of brass with nut, bolts and washers suitable for 100/63 KVA capacity transformer, complete all as per specified and directed.

S&F, in repair, rubber gasket set 6mm thick for transformer of capacity 100/63 KVA complete all as per specified and directed.

S&F, in repair, GI pipe 80mm dia, light grade, laid below road / fixed along the poles / walls with necessary clamping, etc complete all as per specified and directed.

S&F, in repair, jointing kit for 11 KV (Earthed) grade cable for out door termination cold shrink type joint complete with jointing material and accessories suitable for 3core XLPE armoured aluminium conductor cable of size 95 sqmm complete all as specified and directed.

S&F, in repair, jointing kit for 11 KV (Earthed) grade cable for in-door termination cold shrink type joint complete with jointing material and accessories suitable for 3core XLPE armoured aluminium conductor cable of size 95 sqmm complete all as specified and directed.

S&F, in repair, jointing kit for 11 KV (Earthed) grade cable for straight through cold shrink type joint complete with jointing material and accessories suitable for 3core XLPE armoured aluminium conductor cable of size 95 sq mm complete all as specified and directed.

Dismantling of ACSR conductor, any size from the over head line by disconnecting from Pin insulator, Disc insulator or shackle insulator all as directed by the Engineer-in-charge.

M&L for ACSR conductor, of any size, for over head line fixed to insulator with binding wire after allowing specified gap complete all as specified and as directed by the Engineer-in-Charge.

Re-stringing of existing aluminium conductor steel reinforced (ACSR) on over head line of any size on RCC / steel tubular pole by removing of binding wire from insulator and rebinding with aluminium binding wire including fixing of jumpers where necessary complete all as per specified and directed. Note: - Each conductor will be measured separately as one RM for payment.

M&L for stay assembly complete with accessories as shown in electrical plate No. 1, complete with galvanised stay strand of size 7/3.5mm with vitreous porcelain loop type insulator, white, brown or green with over all dimension 65x90 mm, clearance of hole16 mm, stay clamps made out of FI 50mmx 6 mm complete with nut, bolts and washer of galvanised iron including excavation & earthwork in any type of soil and concrete work in PCC (1:3:6) type C-2 using 40mm graded stone aggregate (Pit size 800x600x1200mm) complete all as specified and directed and including taking down old stay assembly.

S&F, in repair, pin type porcelain, vitreous, white brown or green insulator including one GI steel spindle, two galvanised iron washer and one galvanised nut 150 mm height, 150 mm dia for 11000 volts grade.

S&F, in repair, disc type porcelain, vitreous, white brown or green insulator including ball and socket type GI steel spindle, two galvanised iron washer and one galvanised nut 145 mm height, 255 mm dia for 11000 volts grade.

S&F, in repair, Gang operated switch, (9 insulator type), Triple pole, mechanically operated, mounted on insulators and steel frame with operating mechanism worked from ground level for 11000 volts, 200 Amp rating with operating rod and handle and locking arrangements suitable for horizontal type mounting and connecting up complete all as specified and directed

-do - but suitable for horizontal mounting complete with GI operating road of suitable length and size and rating upto 200 Amp 11000 Volts complete with locking arrangement MS clamp bolts, nuts , washres including Air break swith isolators 200 Amps

S&F, in repair, drop out fuse unit complete with fuse carrier assembly suitable for 11 KV complete all as specified and directed.

S&F, in repair, lighting arrester expulsion type complete with all fittings, transmission class suitable for 11000 volts having 65 KA discharge capacity complete all as specified and directed

M & L, in repair, for cross arms, bracing support clamps and back plates etc fabricated from structured steel section including nuts, bolts, washer, welding, bending cold or hot, drilling hole for bolts in any shape or size as directed and including applying one coat red oxide primer and two coat aluminium paint after preparation of surface complete including taking down old cross arms.

Dehydration and filtration of transformer oil of the transformer mounted on floor/ on poles using filtration plant. The process of dehydration and filtration shall be continuous till the dielectric strength does not achieved 50 KV. Note: Contractor shall arrange filtration/dehydration machine and other required T&P at site.

Supply & topping up transformer oil in existing transformer, the di-electric strength not less than 50 KV all as specified and as directed by Engineer-in-Charge.

Supply and fix along the pole/wall or laying across the road, galvanized iron tubing, light grade, 40 mm bore for cable protection including taking out old GI tube.

M&L for horizontal boring by using the trenchless technology under the road at least 60 Cm below road top, in any type of soil for insertion of GI pipe of 80mm bore.

Trimming of tree branches touching to the over head HT lines

M&L, in repairs, earthing complete with galvanized steel earth plate electrode of 60 cm x 60 cm x 6mm thick buried directly in ground [earth pit not less than 2.25 metre deep below normal ground level] with top edge of the plate not less than 1.5 m below normal ground level, connected to galvanized earth strip of 25x4mm by 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 earth test point using earth strip of 25x4mm as earth lead all as specified and testing on completion including provision of earth lead protected by 40 mm dia light grade GI pipe & watering pipe shall be 20 mm bore medium grade GI pipe including all excavation and earth work in any type of soil, PCC pit with RCC cover, char coal, salt, funnel etc complete. Note for item 42 : Rate quoted by tenderers shall be deemed to include for following provisions;- [i]. Excavation & earth work in any type of soil including removing of surplus material upto 50 M. [ii]. PCC 1:3:6 type C1 using 20mm graded stone aggregate in pit & 40mm thick precast RCC 1:2:4 type B1 cover 50x50 cm with 8mm TMT bars @ 15 cm C/C both ways with handles. [iii]. Main earthing lead from earth electrode to test point upto 7.5 mtr. [iv]. Funnel with watering pipe [GI pipe] 20mm bore [ISI marked] medium grade & copper lugs, charcoal & salt as reqd. [v]. GI protection pipe of size 40 mm bore light grade 7.5m.

Retriving of unserviceable under ground HT cable 11 KV XLPE insulated armoured screen PVC bedded of size 3 x 95 sqmm from trenches / wall / duct Note ;- Excavation and earth work to be measured separetely

Supplying, laying, connecting and testing, underground XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) with aluminium multi stranded conductor 11000 volts grade for earthed system, cross sectional area 95 Sqmm x 3 core complete all as per specified and directed.

Laying only serviceable HT UG cable 11 KV 3 x 95 Sqmm armoured XLPE insulated in trenches on wall after jointing

S&F, in repair, Trip Neutral close switch, complete all as specified and as directed. Make-SALZER or equavilent as approved by GE.

S & F, in repair, digital type, mmeter suitable for 11 KV supply . Make -RISHABH model No. RISH/DPM/196A or equivalent by GE

S & F, in repair, digital type, Volt mmeter suitable for 11 KV supply . Make -RISHABH model No. RISH/DPM/196V or equivalent by GE

Servicing and overhauling of 11 KV VCB by cleaningand lubrication mechanism, panel checking & cleaning of fix and movable contact including setting as per required operation all as directed by Engineer-in-charge. Checking of CT ratio and breaker tripping by primary injection and calibration of relay and setting of 11KV HT VCB as per required load all as directed by Engineer-in-Charge. Checking and conducting of High voltage test and setting the relay range of 11KV HT VCB all as specified by the OEM in the maintenance schedule.

Supply and spreading 20 mm size graded stone aggregate around 2 pole/4 pole structure including leveling complete all as specified and directed.

Supply & fix in replacement of PCC pole, erecting and fixing in true vertical position, steel tubular swaged pole (410 SP – 55) conforming to IS 2713 (part 1 to 3), 11 mtr long, complete with cast iron base plate, pole cap / finial taper plug, bolts, nuts and washers, including two coats of black bituminous paint externally upto planting depth and remaining exterior portion of pole shall be provided with one coat of red oxide primer and two coats of aluminium paint complete all as specified and directed. (Numbering of the poles shall be done with synthetic enameled painted letter of shape & size as directed.) Note:(a) Cost of numbering of pole shall be deemed to included in unit rate. (b) Excavation, Earth work and PCC foundation will be measured and paid separately. (c) The pole shall be marked with designation, manufacturer's identification and year of manufacture .

Supply & lay in repair GI strip 32 mm x 6 mm as earth continuity conductor complete laid on on pole / on wall etc

Repair to existing PCC plateform with providing Cement concrete Type C2 1:2:6 40mm graded aggregate necessary brick works, coping, plaster and white wash for 315 KVA transformer 11/.433 KV with lifting and removing the transformer, filling of mass concrete, coping and replastering and painting with 2 coats of cement base paint. Writing MES No of transformer with black synthatic paint, refixing the transformer at plateform reconnecting with the system Note PCC work to be measured and paid for separately under relevant item.

-do - as above but suitable for 100 KVA transformer

M&L for PCC (1:4:8) type D-2 (using 40mm graded crushed stone aggregate) as in foundation filling and mass concrete for poles complete all as specified and directed.

M&L for PCC (1:3:6) type C-2 (using 40mm graded crushed stone aggregate) as in foundation filling and mass concrete of stay assembly/ pole etc complete all as specified and directed

M&L for PCC 1:2:4 type B-1 (using 20mm graded crushed stone aggregate) as in coping foundation filling and mass concrete including form work for poles complete all as specified and directed.

ALBA AC AND REF SERVICES

SATISH ELECTRICALS