REPAIR AND MAINTENANCE OF EXTERNAL ELECTRICFICATION OF HT AND LT LINES INCLUDING TRANSFORMER, SERVICING GOD/VCB/ BATTERY BANK AND OTHER CONNECTED WORKS AT RAMBAN AND BANIHAL UNDER AGE (I) BHALRA

Amount

Transporting to burnt out transformer for repair to civil workshop by arranging required transport required for shifting of transformer Strip opening of transformer and removing the top cover for repair, and taking out the burnt out core alongwith HT/LT coil (windings) assembling the core after replacement of HT/LT coils heating varnishing, testing and housing accessories in transformer body and connection up filling in dehydrated transformer oil and connection with existing electrical system HT/LT and commissioning complete on load of capacity not exceeding 63 to 315 KVA. (Transformer oil will be measured and paid separately).

M&L for rewinding with supper enameled double paper covered copper wire for HV (11/0.433KV) winding having existing size and giving proper insulation and de-moisturizing before assembling the winding core and including primary testing, ratio testing, no load testing, core insulation testing and setting connection of tap changer including taking out unserviceable winding wire complete all as specified and as directed.

M&L for reconditioning of LT side coils by removing it from its postion carefully and refixing the same carefully by providing insulation material, packing and spacers etc and de-moisturizing before assembling and number of turning & weight to suit with existing coils including primary testing, ratio testing, no load testing, core insulation testing and setting connection of tap changer complete all as specified and directed by Engr-in-charge.

De-hydration/ filtration of transformer oil by hiring on line filtration plant to achieve di-electric strength not less than minimum 50 KV at 2.5 mm gap including following work services :- (a) Removal of all suspended particles such as dust, rust, scales, collided carbon oxidation sludge etc upto < 1 micron. (b) De-hydration of transformer oil under vaccum. (c) Circulation of heated oil and filling of treated oil in transformer tank. (d) Top up the transformer oil upto the level NOTE : (i) Contractor shall use the vehicle mounted filtration plant with new suitable size heavy duty hose pipe. (ii) The transformer oil required for replacing/top up shall be measured and paid separately as "Supply only" (iii) Conducting field testing of di-electric strength of the transformer oil before and after filteration (iv) Checking the megger/earth resistance values with battery operated megger of 5 KV

M&L for Filling / topping of new transformer oil having dielectric strength not less than 60 KV at 4 mm gap complete including centrifuging of oil (if required) up to getting dielectric strength not less than 60 KV at 4 mm gap all as specified and directed by the Engineer-in-Charge.

Supply and fixing in repair/replacement of breather assembly of Transformer incl silica gel upto 100 KVA transformer as per existing make and type 500 Gm complete all as specified and as directed.

Supply and fixing in repair/replacement brass terminal stud 12 mm with nuts, check nut, oil seal and washer for HV side of transformer up to 100 KVA transformer complete all as specified and as directed.

Supply and fixing in repair/replacement brass terminal stud with nuts, check nut, oil seal and washer for LV side of transformer of any make (as per sample) up to 100 KVA transformer complete all as specified and as directed.

Supply and fixing in repair/replacement bushing of HV side as per existing size/Model of the capacity up to 250 KVA transformercomplete all as specified and as directed.

Supply and fixing in repair/replacement bushing of LV side as per existing size/Model of the capacity up to 250 KVA transformercomplete all as specified and as directed.

Disconnecting electric supply from both ends of defective voltage stabilizer of capacity 20 KVA to 63 KVA after disconnecting elect supply from both ends and transporting the same from Ramban/ Banihal/ Uppergund /patnitop to workshop, opening top cover, taking out transformer oil, checking for faults and replacing the defective parts, checking/testing the stabilizer, refilling and topping up the transformer oil and transporting to Banihal, Ramban and refixing in original position, making connections complete all as specified and directed by Engineer-in-charge. Note : Spares and transformer oil for top up shall be measured and paid for seperately.

Supply and fix in repair/replacement the following spares to voltage stabilizers :-

(a) Reversible motor low speed instant start/stop high torque having speed 960 rpm and of capacity 0.08hp.

(b) Servo circuit card.

(c) RC Network.

(d) Dimmer for 300/100 KVA voltage stabilizer.

(e) Dimmer for 63/30/20 KVA voltage stabilizer.

Supply & fixing in repairs switch air break, gang operated, triple pole, mechanically operated suitable for horizontal or vertical mounting, fixed type, mounted on insulator and steel frame with operating mechanism worked from ground level, provided with locking arrangement for operating handle, consisting of MS channel, HT post type insulator, contacts of copper alloy, high pressure, heavy duty contact assembly, operating rod of 25mm dia GI pipe medium grade, drop out expulsion assembly of phases fuses etc conforming to IS:1018 of 1972 with continuous current rating with 12 insulators of current rating upto 400 amps 11000 volts grade, complete all as specified & directed.

Supply & fixing in repairs aluminium conductor steel reinforced (ACSR) of any size for HT/LT overhead lines on steel tubular poles/PCC poles, stretching without kinks and bends including binding wire suitable cross section (but not less than 16 SWG), complete all as specified & directed.

M&L in repairs 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 and inclusive of one primer coat, one under coat and one finishing coat of paint, complete all as specified & directed.

Material & labour for painting to existing steel tubular HT poles, 11 Mtr long including cross arms, channels, angle iron support, bracings, clamps etc. with one coat of aluminum paint superior quality of approved make on surfaces exposed to view and making 30cm wide strips (total 5 Nos) with white and black paint alternately on external surface above PCC benching including preparation of old painted surfaces by scraping etc complete and writing pole numbers. of 2 inches bold letters with black paint after painting, complete all as specified & directed.

Material & labour for painting to existing steel tubular LT poles, 09 Mtr long including cross arms, channels, angle iron support, bracings, clamps etc. with one coat of aluminum paint superior quality of approved make on surfaces exposed to view and making 30cm wide strips (total 5 Nos) with white and black paint alternately on external surface above PCC benching including preparation of old painted surfaces by scraping etc complete and writing pole numbers. of 2 inches bold letters with black paint after painting, complete all as specified & directed.

Supply & fixing in repairs lightening arrestor, expulsion type consisting of multiple spark gaps in series with one or more non linear resister to limit voltage surge on AC power circuit to interrupt power flow current suitable for outdoor installation and exposed direct to sun with ambient temperature below - 10 degree C to 50 degree C suitable for surge discharge capacity 65 KA, 11000 volts grade conformign to IS-4350 including all fittings, complete all as specified & directed.

Supply and fix in repairs 11 KV CTPT metering unit , type outdoor oil cooled , pole mounted, CT Ratio:5/5 A , Burden 10 VA, Class-0.5 S , STC -3 KA/1 Sec and PT Ratio 11KV/110 V, Burden -0.50 VA, Class-0.5 S, insulation -12 KV/28KV all as per IS-2705/1992 and IS-3156/1992 all as specified and as directed.

Stretching/tightening of existing ACSR conductor of any size any number of conductors on HT/LT poles after loosening binding wire from insulators and removing spacers upto a level to maintain a permissible space between conductors after rebinding the conductor with insulator with GI wire, complete all as specified & directed.

Supply & fixing in repairs pin type insulator porcelain, vitreous, white/brown or green including one galvanized mild steel spindle, two galvanized iron washers and one galvanized iron nut, 150mm dia and 150mm height for working pressure 11000 volts grade, complete all as specified & directed.

Supply & fixing in repairs disc type insulator porcelain vitreous white, brown or green 145mm high and 255mm dia ball and socket type, single disc assembly for tension with tension clamp for conductor of working pressure 11000 volts, complete all as specified & directed.

Supply & fixing in repairs pin type insulator porcelain, vitreous, white/brown or green including one galvanized mild steel spindle, two galvanized iron washers and one galvanized iron nut, 65mm dia and 100mm height for working pressure 1100 volts grade, complete all as specified & directed.

Supply & fixing in repairs Shackle Type, Porcelain, vitreous, white, brown or green insulator including galvanised mild steel straps, washers, insulator bolts, washers and nuts, as under: Working pressure in volts 1100 volts, Height 100mm, max dia 115mm, section of straps 31x5mm dia of bolt 14mm, complete all as specified & directed.

Material & labour in repairs for earthing galvanized steel earth plate electrode 600mm x 600mm x 6 mm thick buried directly in ground (earth pit not less than 2.25 mtr depth below normal ground level) with top edge of earth not less than 1.5 mtr below normal ground level connected to and including galvanized steel strip 32 mm x 6 mm as earth lead upto equipment by means of steel bolts, nuts, check nuts and washers, test point made of GI strip 40x8mm, 10cm long PCC 1:2:4, type B-1 in pit with precast RCC 1:2:4 type B-1 in cover reinforced with XPM not less than 4 Kg per Sqm with 40mm bore GI light grade protection pipe, 20mm bore GI medium grade watering pipe with funnel including charcoal, dust, salt, all as shown in electric plate No 3 of SSR Part-I (2009) Specifications, complete with necessary earth work in any type of soil, removal to a distance not exceeding 50 mtr including testing on completion complete all as specified & directed.

Supply & fixing in repairs earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc as required of galvanised steel strip of 32mm x 6mm to connect earthpit to electrical equipment room, complete all as specified & directed.

Material & labour in repairs for earthing of galvanized steel earth plate electrode 600mm x 600mm x 6 mm thick buried directly in ground (earth pit not less than 2.25 mtr depth below normal ground level) with top edge of earth not less than 1.5 mtr below normal ground level connected to and including earth lead wire 4.0 mm by means of steel bolts, nuts, check nuts and washers, test point made of GI strip 40x8mm, 10cm long PCC 1:2:4, type B-1 in pit with precast RCC 1:2:4 type B-1 in cover reinforced with XPM not less than 4 Kg per Sqm with 15mm bore GI light grade protection pipe, 20mm bore GI medium grade watering pipe with funnel including charcoal, dust, salt, all as shown in electric plate No 3 of SSR Part-I (2009) Specifications, complete with necessary earth work in any type of soil, removal to a distance not exceeding 50 mtr including testing on completion complete all as specified & directed.

Supply & fixing in repair/replacement earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc as required of galvanised wire of 4mm dia to connect earthpit to electrical equipment room, complete all as specified & directed.

Trimming / cutting of tree branches of girth not more than 50 mm which touching /obstructing the over head lines of HT/LT poles of three phase distribution system as directed by Engineer-in-Charge, complete all as specified & directed.

Supply & fix in repair Bus bar Panel, Size: 0.80mtx0.40mtx0.40mt, Kisok outdoor type, CPRI type tested, LT 440 Volts, 50 Hz , 3 Phase 4 wire supply , floor mounted factory fabricated weather and vermin proof protection class IP 54 made out of 1.4 mm thick MS Sheet CRCA on angle iron 30mmx30mmx4mm frame of size suitable to incorporate following accessories with front opening doors, locking arrangement powder coated internally and externally, shall have channel base of appropriate size and mounted on PCC foundation of size as required or approved by manufacturers in PCC 1:3:6 type C-2, using 40 mm graded crushed stone aggregate as recommended by manufacturer or directed by the Engr -in - charge including earth work complete comprising of Bus bar chamber comprising 4 Nos Aluminium strip bus bars PVC insulated made of aluminium strip of size suitable for 200A current. PVC sheathed with colour coding.

M&L in repairs for LT line PVC Spacers for the following sizes :-

(a) Spacer for two wire

(b) Spacer for three wire

(c) Spacer for four wire

(d) Spacer for five wire

Supply only in repair/replacement Aluminium lugs of any type complete all as per of sample of following sizes :-

(a) 10 sq mm

(b) 16 Sqmm

(c) 25 Sqmm

(d) 50 Sqmm

(e) 70 Sqmm

(f) 95 Sqmm

(g) 120 Sqmm

(h) 150 Sqmm

(j) 240 Sqmm

Supply and fixing in repairs of change over switch on load 4 pole 415 volts 200 Amp in conforming to IS with front operated handle complete with fixing in existing LT Panel as directed.

Supply and fix in repairs OFF LOAD change over switch 415V in sheet metal enclosures 4 pole of capacity 100 Amps all as specified and directed.

Supply & fixing in repairs MCCBs 63 amps, 4 pole, breaking capacity 16 KA, 415 volts, AC complete all as specified & directed.

Supply & fixing in repairs MCCBS 100 amps, 4 pole, breaking capacity 16 KA, 415 volts, AC complete all as specified & directed.

Supply & fixing in repairs MCCB 160 Amps 4 pole 36 KA, fixed thermal and fixed magnetic setting fixed in existing panel and connected to old existing cable including necessary fixing arrangement lugs, gland etc complete all as specified and as directed.

Supply & fixing in repairs MCCB 200 Amps 4 pole 36 KA, G frame, fixed thermal and fixed magnetic setting fixed in existing panel and connected to old existing cable including necessary fixing arrangement lugs, gland etc complete all as specified and as directed.

Supply & fixing in repairs MCCB 250 Amps 4 pole 36 KA, G frame, fixed thermal and fixed magnetic setting fixed in existing panel and connected to old existing cable including necessary fixing arrangement lugs, gland etc complete all as specified and as directed.

Supply & fixing in repairs MCCB 400 Amps 4 pole 36 KA, G frame, fixed thermal and fixed magnetic setting fixed in existing panel and connected to old existing cable including necessary fixing arrangement lugs, gland etc complete all as specified and as directed.

S & F in repair/replacement junction box for street light poles dust and vermin proof make Sintex model GSJB 3020 complete with connector block 3 phase and neutral on epoxy insulators incl one MCB SP C series 06 amps 10 KA capacity for Security light connection including suitable clamps & suitable size brass chromium plated glands-02 nos at bottom for cable entry and exit complete all as specified and as directed including taking down old existing junction box.

Supply , laying & testing in repairs XLPE insulated, armoured, heavy duty electric cable with stranded aluminium conductor, 11000 volts grade earthed , laid in trenches, sleeving through pipes or fixed on poles & walls or laid under floors including jointing with suitable size aluminium lugs complete of size 95 Sqmm 3 core nominal cross sectional area complete all as specified and directed as per IS-7098 (Part-I)

M&L for searching fault location of HT/LT UG cable 11000/415 Volts laid in trenches/ducts with the help of electronic fault locating machine comprising of surge generator pulse, ECHO fault locator with frequency distance calculator etc incl transportation of machinery. Excavation in normal soil strata exposing the cable fault removal of deteriorated portion of the cable treating of cable of any size including disconnecting and re-fixing cables with lugs as per direction of Engineer-in-charge.

Material & labour in repair/replacement of cable jointing kit for HT 11 KV (Earthed) 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 50-95 sqmm including testing and commissioning complete all as specified & directed.

M&L in repair/replacement of Cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 sqmm to 95 sqmm complete all as specified and directed.

Supply and fix in repair/replacement of LT Aeriel Bunched cable 1100 volts grade (5 Core), stranded and compact aluminium phase conductor of size 3 core x 120 sq mm + 01 core x 25 sq mm for security light phase conductor + Neutral conductor (Bare messenger conductor) 1 x 50 sq mm with aluminium alloy. The phase conductor and security light phase conductor shall be insulated with XLPE (Cross Liked Polyethylene) and confirms to IS : 6474-1971, insulation colour shall be black. All four power cables shall be suitably twisted around bare AAAC steel messenger. All as confirm to IS : 14255-1955 including suitable size of MS clamps, nuts, bolts and MS hooks to be fixed on existing pole for cable hanging complete all as specified and directed by Engr-in-charge.

S & F pole box for three phase LT distribution dust and vermin proof make Sintex model GSJB 6050 complete with aluminum bus bar 04 nos. of capacity 400 amps on epoxy insulators in its full width including provision of 10 Nos holes with provision of suitable size of nuts and botls for incoming and outgoing cables, including suitable clamps, nuts and botls for pole mounting at bottom for cable entry and exit complete all as specified and as directed including taking down old unserviceable.

Supply & Laying in repair with suitable thimble and cable gland, testing and commissioning or fixing in Wall or passing through pipe, 1100 volts grade heavy duty cable with XLPE insulated screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty ) with aluminium conductor cable of size 70 Sqmm 3.5 core , 1100 volts, grade complete all as specified and as directed.

Supply & Laying in repair with suitable thimble and cable gland, testing and commissioning or fixing in Wall or passing through pipe, 1100 volts grade heavy duty cable with XLPE insulated screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty ) with aluminium conductor cable of size 50 Sqmm 3.5 core , 1100 volts, grade complete cable all as specified and as directed.

Excavation in trenches not exc 1.5 meter wide & not exc 1.5 mtr in depth in any type of soil for foundation etc or for manholes, laying of pipe in any type of soil and getting out complete all as specified and directed.

Returning, filling in excavated approved soil, including spreading, leveling, watering and well ramming in layers not exceeding 25cm each complete all as specified and directed.

Removing excavated soil not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and directed.

M & L for dry sand cushioning to underground cables with 8cm thick before laying of cables and 15cm thick after laying and stretching of cable all as specified and directed. Note : Only punned thickness shall be measured and paid.

M & L for Old size sub class ‘B’ bricks, laid in trenches across the length of cable as cable cover including taking out old unserviceable bricks complete all as specified and directed.

Taking out old unserviceable HT UG Cable, 11000 volts grade of any type any size by disconnecting the connection carefully from both the ends complete all as specified and directed.

Taking out old unserviceable LT UG Cable, 1100 volts grade of any type any size by disconnecting the connection carefully from both the ends complete all as specified and directed.

K S BUILDERS (BID ID -3472608)

Ish Engineers and Contractors (BID ID -3471218)