REPAIR MAINTENANCE AND DEHYDRATION

Amount

Disconnecting defective transformer indoor/outdoor of any capacity up to 500KVA both from HT/LT sides, and then drainage of complete transformer oil, opening of top cover with due care and removal of all HT/LT winding connections from bushing and then lifting of core by means of tripod and chain pulley with due care for inspection and ascertain it’s serviceability state after keeping it aside. Removal of all sludge and unwanted material from tank and core, lowering of core assembly after carrying out required repairs to the winding and core. In case the repairs which are not possible at site then the transformer has to be taken to the work shop for repairs. Note :- (i) The cost of transportation shall be paid separately. (ii) The cost of rewinding shall be paid separately. (iii) The cost of dehydration/filtration & other necessary repair as directed shall be measured & paid for separately under relevant items of Sch’A’ (iv) Any additional transformer oil, if required will be filled by contractor and shall be paid under appropriate item.

Disconnecting defective transformer indoor/outdoor of any capacity up to 315KVA both from HT/LT sides, and then drainage of required transformer oil. Opening of top cover LT and HT side bushings with due care and removal of all HT/LT winding connections from bushing and then replacement of head gasket, LT and HT bushing packings complete and ensured that no leakage in transformer from LT/HT bushing and top cover gasket as directed by Engr-in-Charge.

Disconnecting defective transformer indoor/outdoor capacity of 315-500 KVA both from HT/LT sides, and then drainage of required transformer oil. Opening of top cover LT and HT side bushings with due care and removal of all HT/LT winding connections from bushing and then replacement of head gasket, LT and HT bushing packings complete and ensured that no leakage in transformer from LT/HT bushing and top cover gasket as directed by Engr-in-Charge.

Taking down of transformers of capacity 50/100/250/300/400/500KVA from 2/4pole structure or from PCC plateform with due care after disconnecting all HT/LT connections on pole mounted structures, Transportation of transformer to workshop from site of installation to workshop for repairs including loading and unloading of transformer, and replacing it to site from where it was taken for repairs/(as required by Engr incharge) complete .and then lowering it by means of crane and remounting on 2/4pole structure after repairs all as directed by engineer in charge.

Taking down of transformers of capacity 50/100 250/300/400/500KVA from 2/4pole structure or from PCC plateform with due care after disconnecting all HT/LT connections on pole mounted structures, Transportation of transformer to PCC/ 2 or 4 pole structure to any other required location in Patiala cantt lowering and remounting on 2/4pole structure it by means of crane after disconnecting all connection and reconnection in new location including earthing connection and as directed and specified by engineer in charge.

Material and labour for replacement of worn out HT copper coils made out of super enameled insulated copper wire all as per existing size and shape including all insulating, binding, material and then varnishing complete all as directed by engineer in charge

Material and labour for replacement of worn out LT copper coils made out of super enameled insulated copper strip all as per existing size and shape including all insulating, binding, material and then varnishing complete all as specified and directed by engineer in charge

Dehydration/centrifuging of transformer oil by centrifuging machine electrically operated at site of installation of transformer in running condition of transformer including testing of transformer oil before and after centrifuging from top and bottom of transformer at 2.5mm gap the BDV should be 60KV and above complete all as directed by engineer in charge.

Supply and topping up of transformer oil of dielectric strength of 65 KV complete all as specified and as directed by engineer in charge.

Material and labour for replacement of worn out bushing rod made out of made out brass with heavy duty three nuts and three washer at both ends suitable for HT side all as exiting size, shape and length suitable for following capacity transformers :- (i) 160 – 250 KVA Transformers.

(ii) 300 – 400 KVA Transformers.

(iii) 500 KVA Transformers

(iv) 50 - 100 KVA

Material and labour for replacement of worn out bushing rod made out of made out brass with heavy duty three nuts and three washer at both ends suitable for LV side all as exiting size, shape and length suitable for following capacity transformers :- (i) 160 – 250 KVA Transformers.

(ii) 300 – 400 KVA Transformers.

(iii) 500 KVA Transformers

(iv) 50 - 100 KVA Transformers

Material and labour for replacement of worn out porcelain bushing for 11KV HT side indoor /outdoor transformers with rubberised cork sheet washers 4mm thick all as directed by engineer in charge suitable for following capacity transformers:- (i) 160 – 250 KVA Transformers.

(ii) 300 – 400 KVA Transformers.

(iii) 500 KVA Transformers

(iv) 50 – 100 KVA Transformers

Material and labour for replacement of worn out porcelain bushing for .433 KV LT side indoor /outdoor transformers with rubberised cork sheet washers 4mm thick all as directed by engineer in charge suitable for following capacity transformers:- (i) 160 – 250 KVA Transformers.

(ii) 300 – 400 KVA Transformers.

(iii) 500 KVA Transformers

(iv) 50 – 100 KVA Transformers

Material and labour for replacement of worn out rubberised cork sheet 4mm thick for transformer top cover all as as directed by engineer in charge suitable for following capacity transformers:- (i) 160 – 250 KVA Transformers.

(ii) 300 – 400 KVA Transformers.

(iii) 500 KVA Transformers

(iv) 50 – 100 KVA Transformers

Material and labour for replacement of worn out rubberised cork sheet 4mm thick suitable for HT/LT side bushing of off sizes all as directed by engineer in charge.

Preparation of old surface of transformer for painting externally including fins/radiators removal of all rust/oil/grease and unwanted material and applying two coats of synthetic enamel metallic paint by means of spray gun at site complete including wiriting SM/MES No in Black colour and marking LV, HV side and earth terminal complete all as directed by engineer in charge for following capacity of transformer:- (i) Upto 160 KVA.

(ii) 300 – 400 KVA

(iii) 500 KVA

Material and labour for replacement of worn out silica gel breather all as per existing /sample suitable for following capacity of transformers of any make.:- (i ) 160 – 250 KVA.

(ii) 300 – 400 KVA

(iii) 500 KVA

(iv) 50 - 100 KVA

Material and labour for replacement of worn out off load tap changer all as per existing/ sample suitable for following capacity of transformers of any make.:- (i) 160 – 200 KVA.

(ii) 300 – 400 KVA

(iii) 500 KVA

(iv) 50 -100 Transformer

M&L earthing complete with galvanized steel plate electrode 600 mm x 600 mm x 6.0 mm thick, burried directly in ground vertically in pit of size 900 x 900cm depth not less than 4.0 metre below normal ground level with top edge of the earth plate at a depth not less than 3.4 metre below normal ground level and covered surrounded from all sides with mixture of charcoal and common salt in alternate layers (each layer of 0.23 cu. m) upto 15cm above top of plate and electrode connected to galvanized iron strip 32 x 6 mm size by means of GI bolts, nuts, check nuts and washers, earth strip protected by galvanized steel pipe 40 mm bore (light grade) connected to main switch board or any other electrical equipment all as shown in electrical plate No. 3 of SSR-2009 Part I and including necessary excavation and earth work in any type of soil, 20 mm bore medium grade GI pipe for watering, funnel with wire mesh, PCC (1:3:6), type C-1 chamber, RCC (1:2:4), type B-1, reinforced with 6 mm dia MS round bars @ 15 cm c/c both way for cover and MS frame etc., complete all as specified. NOTE:1. The unit rate includes earth strip and protection pipe upto (maximum 7.5 metre from earth plate) earth point/test point. 2 .Earth test willl be carried out and resistance should be less than 3.0 Ohm.

Material and labour for oil temperature gauge /thermometer suitable for transformers as per existing shape and size for any make and model transformers all as specified and directed by engineer in charge.

M&L for XLPE insulated screened PVC bedded galvanised steel strip or armoured eletric power cable ( heavy duty) with aluminium conductor 11000 V grade, of cross sectional area 120 sq mm size 3 core including removing unserviceable cable from trenches, taking down from poles etc complete all as specified and directed. Note:- Excavation in trenches and earth work,sand coushning,cable cover shall be measured and paid separately inrespective items of this schedule

M&L for XLPE insulated screened PVC bedded galvanised steel strip or armoured eletric power cable ( heavy duty) with aluminium conductor 11000 V grade, of cross sectional area 95 sq mm size 3 core including removing unserviceable cable from trenches, taking down from poles etc complete all as specified and directed. Note:- Excavation in trenches and earth work,sand coushning,cable cover shall be measured and paid separately inrespective items of this schedule

M&L for XLPE insulated screened PVC bedded galvanised steel strip or armoured eletric power cable ( heavy duty) with aluminium conductor 11000 V grade, of cross sectional area 300 sq mm size 3 core including removing unserviceable cable from trenches, taking down from poles etc complete all as specified and directed. Note:- Excavation in trenches and earth work,sand coushning,cable cover shall be measured and paid separately inrespective items of this schedule

Excavation in trenches in soft/loose soil not exceeding 1.5 meter wide and not exceeding 1.5 meter in depth for laying of cable, pipes and for poles/stay and struts etc and getting out complete all as specified and as directed.

M&L for laying,sspreading and punning dry fine river sand in trenches for cushioning to cable for protection of cable with layers of sand 8 cm before lying of cable and 15 cm after lying of cable in trenches complete all as specified & directed. Note:- For payment punned depth will be measured.

Returning,filling in soft/loose soil including spreading, leveling, watering and well ramming in layers not exceeding 25cm thick complete all as specified and as directed.

Removing surplus soil to a distance not exceeding 50 meter and depositing where directed at a level not exc. 1.5 meter above the starting point complete all as specified and directed.

M&L for laying unreinforced precast concrete cable cover, class HVP, type- 1 with peak, size 300mmx180mmx40mm laid flat adjacent and abutting to each other across the length of cable laid dry complete all as specified and as directed..

M&L for Mild steel Galvanized pipe 100 mm bore light grade laid in trenches / road / nallah or fixed along wall/ pole etc complete all as specified and as directed. Note:- MS clamps will be measured and paid separately in respective item of this schedule.

M&Lfor cable jointing kit for 11KV(Earthed) grade cable for straight through Heat shrinkable type joint complete with jointing materials and accessories suitable for 3 Core XLPE 11 KV cable cable of size 300 sqmm complete all as specified and as directed .

M&Lfor cable jointing kit for 11KV(Earthed) grade cable for straight through Heat shrinkable type joint complete with jointing materials and accessories suitable for 3 Core XLPE 11 KV cable cable of size 120-185 sqmm complete all as specified and as directed .

All as per item no.31 here-in-before but suitable for XLPE 11 KV,3 core cable of size 70-95 sq mm.

M&Lfor cable jointing kit for 11KV(Earthed) grade cable for indoor tremination Heat shrinkable type joint complete with jointing materials and accessories suitable for 3 Core XLPE 11 KV cable cable of size 240-300 sqmm complete all as specified and as directed .

M&Lfor cable jointing kit for 11KV(Earthed) gradecable for indoor tremination Heat shrinkable type joint complete with jointing materials and accessories suitable for 3 Core XLPE 11 KV cable cable of size120-185 sqmm complete all as specified and as directed .

M&Lfor cable jointing kit for 11KV(Earthed) grade cable for outdoor tremination Heat shrinkable type joint complete with jointing materials and accessories suitable for 3 Core XLPE 11 KV cable cable of size240- 300 sqmm complete all as specified and as directed .

M&Lfor cable jointing kit for 11KV(Earthed) grade cable for outdoor tremination Heat shrinkable type joint complete with jointing materials and accessories suitable for 3 Core XLPE 11 KV cable cable of size 120-185 sqmm complete all as specified and as directed .

M&Lfor cable jointing kit for 11KV(Earthed) grade cable for outdoor tremination Heat shrinkable type joint complete with jointing materials and accessories suitable for 3 Core XLPE 11 KV cable cable of size 70-95 sqmm complete all as specified and as directed .

M&L for lightning arrestor expulsion type complete with all fittings transmission c lass discharge capacity 65 Kiloampere suitable for 11000 V grade complete all as specified and as directed . .

M&L for replacement of switch air break, gang operated, triple pole mechanically operated mounted on mild steel galvanized frame with operating rod of 20 mm bore medium grade ISI marked galvanized iron pipe worked from ground level for HT 11KV outdoor for horizontal or vertical mounting insulators and current rating 200 Amps including nuts,bolts and washers etc of required size, locking arrangement with7 leaver lock and applying two coats of synthetic enamel paint over a coat of red oxide primer over mild steel work and making necessary electric connections complete all as specified and as directed.

S&F in replacement drop out fuse unit explusion type for out door air break gang oprated switch single pole mounted on and including insulators for 11 KV working pressure fixed to and including MS channel with nuts, bolts, and washer etc. synthetic bounded fuse camng tube complete with line fap suitable for current carry capcity upto 100 Amps complete as secified and as directed.

M&L for removing all connections, bindings etc of ACSR/AAC conductor on existing HT/LT poles & stretching of ACSR/AAC conductor of type and size upto required sag including stretching of GI wire on existing pole including making necessary connection & binding with binding wire including cutting of tree branches from both sides upto the stress on each side complete all as specified and as directed.

M&Lfor repalcement of aluminium conductor steel reinforced off size) conductor including binding wire and jumper and connected with PG clamp made out of aluminium alloy accodring to IS-617 complete all as specified and as directed.

M&L for locating the fault in high tension cable by high tension fault locating machine after disconnecting the HT cable end termination and removing insulation, recftify the fault in HT cable and make the cable fully functional and testing complete to the entire satisfaction of Engineer-in-charge.

M&L for replacement of unserviceable cross arms bracings, supports,clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed inclusive of one primer coat ,one under coat and one finishing coat complete all as specified and as directed.

M&L for taking out of old HT Prestressed Concrete pole 11.0 metres long after excavation and demolition of cement concrete foundation of prestressed concrete pole, disconnecting of cross arm and insulators,ACSR conductor any size and shifting it to new location as required on site, erecting the pole at new location in true vertical position complete all as specified and as directed.Notes:- (i) Excavation and earth work and PCC in foundation will be measured and paid separately under appropiate items of this schedule.

M&L for cement concrete 1:4 :8 type D-2 using 40 mm graded stone aggregate for foundation of poles / stays/strutus or basements etc complete all as specified and as directed.

M&L for cement concrete 1:3 :6 type C-2 using 40 mm graded stone aggregate for foundation of poles / stays/strutus or basements etc complete all as specified and as directed.

M&l for cement concrete type B-1 (1:2:4) using 20 mm graded aggregate for coping of poles / strutus or basements etc complete all as specified and as directed.

M&L for replacement of unserviceable steel tubular swaged pole complete with cast iron/MS base plate 6mm thick and of size 300x300mm, finial tape rplug, pole cap, bolts, nuts, washers & screws etc. pole made out of ERW M.S. tubing conforming to IS-2713 part-II type 410 SP-55 (11.0 metre long) including of holes of reqd Nos and size for fixing of cross arms, painting with one coat of red oxide primer and two coats of aluminium paint for exposed surfaces and two coats of black bituminous paint for portion embedded in concrete, painting three signal red colour bands at lower portion of exposed pole starting from plinth block , each band of 300mm height at 300mm spacing, painting pole No the black paint by stenciled letters/figures of 8cm height completeincuding all as specified and as directed.. Note:- Excavation and PCC works will be measured and paid separatly in respected items of this schedule.

Excavation in trenches in any type of soil not exc. 1.50 m wide and not exc. 1.50 m in depth for finding of the cable fault in HT/LT underground cable and returning filling,including sand coushningand laying old bricks for protection of cable after rectification of the cable fault complete all as specified and directed.

Dismantling unserviceable insulators of any type, any size from poles complete all as directed.

S&F Pin type, porcelain, vitreous, white, brown or green insulator, including one galvanized mild steel spindle, two galvanized iron washers and one galvanized iron nut, 150 mm height, 150 mm dia for 11000 Volt grade complete all as specified and directed.

S&F Disc type insulator, porcelain, vitreous 145 mm high and 255 mm dia ball and socket type, white, brown or green, with tension clamps for conductor, working pressure 11000 volts complete all as specified.

M&L forcutting and removing all type of grass, vegetation,saplings, shrubs,undergrowth,roots and trees up to 50 cm girth including dressing the surface surrounding of E/M installations,under HT over head lines, 4/2 pole structures, transforemer, installations, yards, surrounding valve chamers and removing the rubbish upto a distance 50 mtr outside the periphery of the area complete all as specified and as directed.

Supply and spreading graded coarse stone aggregate of size 20-63 mm at electrical outdoor installation yard 11KV Substations/ Near DP structures etc including leveling of uneven surface, removing vegetation, grass etc complete all as specified and as directed.

Cutting through existing bituminous road /PCC floor/approx size width 50cm X 60cm depth along cross section of the road for laying of GI tubing/RCC pipe for passing through cable and repairing the road/PCC floor to match with the original finish complete all as specified and as directed.

Jai Maa Electrical Works (BID ID -3352916)

Sant Construction Co. (BID ID -3340833)

Raman Electric Trading Co (BID ID -3342829)

Gurcharan Singh Enterprises (BID ID -3352052)

SWAMI ENGINEERS (BID ID -3344798)

Jawandha Enterprises (BID ID -3344676)