REPAIR/MAINT OF TRANSFORMER AND CERTAIN ALLIED WORKS UNDER GE RANGIYA

Amount

Disconnecting all in coming and outgoing cables, removing the transformer from the platform / two pole structure / floor and loading it in the vehicle carefully using crane and transporting it to the contractor's workshop, carry out the required repairs and transport the transformer back to the site , install it, reconnect all the incoming and out going cables by properly crimping using lugs of suitable size lugs, taping the bushes / bus bars, using insulation tape and testing complete of following capacity complete all as specified and directed by Engr-in-Charge :- (Note:- Gasket set, LT/HT side ceramic bushing, spindle for HT/LT side , rewinding,dehydration of oil shall be measured and paid separately in respective items)

400 to 500 KVA 11000/433 Volt Distribution transformer

200 to 315 KVA 11000/433 Volt Distribution transformer

63 to 150 KVA 11000/433 Volt Distribution transformer

Draining out all the transformer oil ,dismantling and inspection of transformer core and winding including taking out burnt out winding/insulation of LV / HV strips/coils , Reassembling of core and winding, drying out in vacuum chamber till specified IR values are obtained and providing new insulation materials, gasket, nuts , bolts, checking of leakages and rectifying the same by welding etc and replacement of silica gel for transformer of following capacity complete all as specified and directed by Engr-in-Charge :- Note: (i)S&F of all materials required such as winding, LV/HV bushes, Silica gel breather etc will be measured and paid for separately (ii) Cost of transformer cleanaing by hosing down shall be deemed include in the rate Quoted (iii) Gasket set, LT/HT side ceramic bushing, spindle for HT/LT side and are horn surge arrester for replacement shall be measured and paid under relevant item.

400 to 500 KVA 11000/433 Volt Distribution transformer

200 to 315 KVA 11000/433 Volt Distribution transformer

100 to 150 KVA 11000/433 Volt Distribution transformer

Supply and rewinding of 300 to 500 KVA Transformer 11/0.433 KVHV coils,using new copper wire/strip of proper size injcluding insulating materials (double insulation)as per existing size of core of transformer complete incl heating , varnishing complete all as specified and directed

Supply and winding of 300 to 500 KVA Transformer 11/0.433 KV LV coils,using new copper wire/strip of proper size injcluding insulating materials (double insulation)as per existing size of core of transformer complete incl heating , varnishing complete all as specified and directed

Supply and rewinding of 63 to 250 KVA Transformer 11/0.433 KVHV coils,using new copper wire/strip of proper size injcluding insulating materials (double insulation)as per existing size of core of transformer complete incl heating , varnishing complete all as specified and directed

Supply and winding of 63 to 250 KVA Transformer 11/0.433 KV LV coils,using new copper wire/strip of proper size injcluding insulating materials (double insulation)as per existing size of core of transformer complete incl heating , varnishing complete all as specified and directed

Supply only breather assembly of approved make filled with silica gel suitable for transformer of following capacity :-

100 KVA Volt Distribution transformer

200 to 315 KVA Volt Distribution transformer

400 to 500 KVA Volt Distribution transformer

35 to 63 KVA Volt Distribution transformer

Supply only brass spindle for terminal on HT side threaded complete with nut, washers etc of suitable dia for transformer of tollowing capaicty :-

400 to 500 KVA 11000/433 Volt Distribution transformer

200 to 315 KVA 11000/433 Volt Distribution transformer

100 to 150 KVA 11000/433 Volt Distribution transformer

35 to 63 KVA 11/.433 KV Ditribution Transformer

All as per item No 8 here-in-before but for LT side of transformer of folliwing capacity :-

400 to 500 KVA 11000/433 Volt Distribution transformer

200 to 315 KVA 11000/433 Volt Distribution transformer

100 to 150 KVA 11000/433 Volt Distribution transformer

35 to 63 KVA 11/.433 KV Ditribution Transformer

Supply only ceramic bushing and Gasket on LT side of transformer of following capacities :-

400 to 500 KVA 11000/433 Volt Distribution transformer

200 to 315 KVA 11000/433 Volt Distribution transformer

63 to 150 KVA 11000/433 Volt Distribution transformer

All as per item No 10 above but on HT side of transformer of following capacites :-

400 to 500 KVA 11000/433 Volt Distribution transformer

200 to 315 KVA 11000/433 Volt Distribution transformer

100 to 150 KVA 11000/433 Volt Distribution transformer

Supply and fixing in replacement of complete gasket (Cock sheet) 6 mm thick complete of capacity of following transformer including conical rubber bush:-

400 to 500 KVA 11000/433 Volt Distribution transformer

200 to 315 KVA 11000/433 Volt Distribution transformer

63 to 150 KVA 11000/433 Volt Distribution transformer

Dehydration/filtration of transformer 300 KVA to 500 KVA oil by means of centrifugal filtration plant to achieve the minimum specified dielectric strength of 35 to 40 KV at 2.5 mm gap in existing position of transformer of any capacity and transformer oil for topping up at various sub station complete all as specified and directed (NOTE: Transformer oil used for TOP UP measured and paid separately)

Dehydration/filtration of transformer 63 KVA to 250 KVA oil by means of centrifugal filtration plant to achieve the minimum specified dielectric strength of 35 to 40 KV at 2.5 mm gap in existing position of transformer of any capacity and transformer oil for topping up at various sub station complete all as specified and directed (NOTE: Transformer oil used for TOP UP measured and paid separately)

Supply and pouring of new transformer oil to achieve a di-electric strength up to 60 KV in 4 mm gap conform to IS-335-1983 with sealed barral contains each 210 litre complete all as specified and directed

Painting of transformer after cleaning the body surface of transformer by rubbing with emery Paper to remove oil stains, dust etc and applying one coat of snthetic enamel paint by spray paint incl writing SM No/MES No , capacity of transformer of following capacity :-

400 to 500 KVA 11000/433 Volt Distribution transformer

200 to 315 KVA 11000/433 Volt Distribution transformer

100 to 150 KVA 11000/433 Volt Distribution transformer

35 to 63 KVA 11/.433 KV ditribution Transfomer

Shifting Transformer 100/250 KVA from one SUB-STATION to another after disconnection of LT & HT Side Connections, Installation, Commissioning and connecting LT & HT Side Connections, complete all as specified and as directed.

M&L for earthing complete with galvanized steel earth plate electrode 60cm x 60cm x 6mm thick burried directly in ground (earth pit not less than 2.25m deep below ground level) with top edge of the plate not less than 1.5m below normal ground level, connected to galvanised iron earth strip of 25 x 4 mm by means of bolts, nuts, checknuts and washers of galvanised iron or steel, GI earth wire protected by 15mm bore light grade GI pipe and other end connected to earthing test point or main switch board as directed including funnel with watering pipe of 20mm bore light grade GI, wire mesh, charcoal or coke and common salt in alternate layer of 15cm compacted thickness all around the earth electrode PCC (1:3:6) type C-1 earth pit, cast iron cover and frame, including necessary excavation and earth work and necessary testing complete all as specified and directed and shown on electrical plate No 3 of MES Schedule Part I

Supply and fixing earthing lead of aluminium strip 25x4 mm all as specified and directed.

M&L Broken Stone or Boulders Hardcore of Gauge not exc. 63mm, deposited, spread and levelled in layers not exc. 150mm thick, watered and rammed to a True Surface complete all as specified and as directed.

M&L Cement Concrete 1:3:6 (40mm Graded stone aggregate) as in Foundation of Poles, Stays, etc including formwork (as/if required), complete all as specified and as directed.

M&L Cement Concrete 1:2:4 (20mm Graded stone aggregate) as in coping of poles, etc. including formwork (as/if required) complete all as specified and as directed.

M&L Mild Steel Screw Bolts (Machine Made) with Hexagonal Head at one End and screwed the other Ends, each screwed End to be fitted with Washers and One Hexagonal Nut, diameter of Shank 5 to 100mm Length of Bolt exc 100mm but not exc. 150mm, complete all as specified and as directed.

Dismantling fencing wire mesh,any type incl complete all as specified and as directed.

Chain Link Fencing 100X100mm Mesh or Cages with 3.15mm dia Mild Steel Galvanised Wire, lapped, Straining and Binding with including Mild Steel Wire (annealed) not less than 0.9mm dia complete all as specified and as directed.

M&L for Fixing only chain link fencing including line wires, any mesh, size and type to any type of standards, rails, straining bolts, etc.including provission of binding wire complete all as specified and as directed.

Demolition of Bricks (laid flat or on edge) or brick tiles in floors, channels, kerbs, aprons, etc. (each layer) complete all as specified and directed.

M&L brickwork with subclass 'B' bricks, laid in CM 1:6 straight or curved on plan exc 6m mean radius, built in complete all as specified and directed.

M&L for rendering 15mm thick laid in CM 1:6 on fair faces of brick work or concrete surfaces complete all as specified and directed.

M&L for forming embankments including raising (or lowering) earth, spreding in layers n exc 30 cm thick, watering, ramming/rolling and finishing to required size, shape, etc. n exc. 1.5 m high from base complete all as specified and as directed.

M&L for Reinforced concrete pipes, class NP3,450 mm dia laid and jointed complete with collars complete all as specified and directed.

Excavation in trenches n.exc 1.5 mtr wide and n exc 1.5 mtr in depth and getting out in soft/ loose soil for laying of cables / GI pipe, foundation of pole, stay etc complete all as specified and directed

All as per item no 32 above but exc 1.5 mtr etc complete all as specified and directed

Returning, filling in including spreading, levelling, watering and well ramming in layers n.exc 25 cm in soft / loose soil complete all as specified and directed

Removing surplus excavated soil n.exc 50 mtr and depositing where directed at a level n.exc 1.5 mtr above the starting point complete all as specified and directed

M&L Sand Cushioning (dry) in trenches/ducts for protection of UG Cables (below, above and around the UG Cable laid in Trenches) of 23 cm Spread thickness (8 cm in depth before laying the Cable and 15 cm in depth after laying the Cable) and consolidated (punned) upto 18 cm thickness, complete all as specified and directed. NOTE : For the purpose of Payment, Punned thickness of Sand Cushioning only shall be measured and paid for

Supplying and laying reinforced precast concrete cable cover, class EHV, type 1with peak, size 300mmx l80mm x 40mm complete all as specified and directed.

Dismontling / Taking down of Cross arms of MS channels or angle section complete all as specified and directed.

Material and labour for cross arms, bracing, supports, clamps and back plate fabricated from structural steel section including nut, 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 aluminium paint complete all as specified and directed

Supply and fixing Pin type Porcelain vitreous white brown or green insulator including one galvanized mild steel spindle two galvanized iron washers and one galvanized iron nut 150mm height 150 mm dia for 11000 volts grade including dismantling old insulator complete all as specified and directed.

S&F Disc type ,insulator porcelain, vitreous,brown white or green Two-in-series assembly, 145mm high &225mm dia ball & socket type, r tension with tension clamp,single disc assembly for conductor working pressure 11000 volts conferming to IS-731 and IS- 3188 complete all as specified and directed.

Taking out/taking down old unserviceable HT electric cable heavy duty 11 KV(E) grade, XLPE of any size complete with and including taking out precast concrete cable cover protection and GI pipes as applicable complete all as specified and directed. Note: Excavation and earthwork shall be measured and paid separately.

Supply, laying jointing & testing HT electric cable heavy duty 11 KV(E) grade, XLPE insulated screened , with sound compacted aluminium conductor, conductor screening with extruded semi- conducting layers insulation screening with copper tape covers laid up with PVC (ST-2) extruded inner sheathing galvanized steel strip armored PVC (ST-2) outer sheathed cable conforming to IS-7098 ( Part-II) amended of size 3 core 95 Sqmm, laid in trenches/ cable duct complete all as specified and directed .

Supply and erecting steel tubular swaged welded pole type 410 SP-55 (11 mtr long) including cast iron Base plate Final Taper Plug Cap Mild steel bolts Nuts Screws etc including applying two coat of black Bituminous Paint internally and externally up to Planting Depth and applying with two coats of aluminium Painting over a coat of red oxide primer including writing MES LT Pole and Blue reflector strip with synthetic enamel paint (first Grade quality ) including dismantling old poles complete all as specified and directed. Note: Earth work and PCC work will be measured and paid separately

M&L for Lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amp for 11000 V complete all as specified and directed.

Stay assembly of size 20 mm dia complete with accessories as shown in electrical plate No. 1 including stay clamps (loop type insulator, excavation and concrete measured separately)

M &L for loop type insulator of large size, with overall dimensions 140mm, clearance of hole 25.5mm complete all as specified and directed.

S&F aluminum conductor steel reinforced (ACSR) on over head HT electric line with stretching and tensioning the same with required span sag and binding the conductor with pin/shackle insulator and jumpers with aluminum binding wire not less than 2mm dia complete all as specified and directed.

M & L for Anti climbing devices; comprising 2.24mm dia galvanised steel 2-strand barbed wire with 2.00mm dia barbs wrapped spirally round poles, to a length of 0.5 to 1.0 metre clamped and properly secured complete all as specified and directed. (clamps measured separately)

M & L for Danger notice plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size, for LT, 25x20cm size complete all as specified and directed.

M &L for Triple pole, mechanically operated gang operated device, mounted on insulator and steel frame, with operating mechanism worked from ground level, for current rating upto 200 amps for 11000 volts complete all as specified and directed

M & L for air break switch ( drout out fuse ) suitable for 11000 volts of current rating 200 amps complete all as specified and directed.

Dismantling of insulator of any type and size from existing poles after opening nuts, bolts and removing from site complete all as specified and directed.

Dismantling of old ACSR conductor of any size/type from HT poles by taking shutdown from respective feeder complete all as specified and directed.

Dismantling of old unserviceable stay assembly including stay wire complete with necessary demolation of concrete excavation and earth work as reqd and removing the same form site complete all as specifed and directed.

M & L For Cable joining kit for 11 KV (Earthed) grade cable for Indoor termination Cold shrink type joint complete with joining 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.

M & L For Cable joining kit for 11 KV (Earthed) grade cable for outdoor termination Cold shrink type joint complete with joining 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.

Dismantling of old unserviceable PCC pole / Studs of any size including all necessary demolition of concrete foundation, excavation, earth work as required complete all as specified and dircected.

Fixing only old serviceable cross arms obtained from Sch `A’ ser Item No 18 here-in-before with providing new bolts, nuts and washers as required including painting with one coat of aluminium paint after preparation of old surface complete all as specified and directed.

Servicing, calibration, trouble shooting, repairing & adjusting of over current relay, earthfault relay, spring, spring charge mechanism, closed coil, trip coil including connected accessories, Power pack, master control relay, HRC fuse, NC contactor, HT fuse, LED indicator, annuceator, hooter, thermostate, cleaning all contacts with CRC spray of 11 KV VCB panel of 630 Amps, 50 Hz by qualified technical personnel to make functional in all respect including identifying the defective parts including replacement of defective parts complete all as specified and directed. Note:- Spare parts shall be paid under relevant item as "Supply only".

Supply only Releasing /closing coil 110 V DC pares suitable for 11 KV HT VCB of maximum short circuit rating 1.8 KA, 400 A 250 MVA complete all as specified and directed.

Supply only Motor Charge spring mechanism with all necessary coils suitable for 110 DC complete all as specified and directed.

Supply only Power pack with cell unit ,230 V incoming and 110 V DC out put for supply of relay complete all as specified and directed.

Supply only master trip relay of 24 V DC for 11 KV HT VCB of maximum short circuit rating 1.8 KA,400 A,250 MVA complete all as specified and directed.

Supply only thermostat 52 degree to 90 degree for 11 KV HT VCB of maximum short circuit rating 1.8 KA,400 A,250 MVA complete all as specified and directed.

Supply only annuceator MLD-02 with hooter for 11 KV HT VCB of maximum short circuit rating 1.8 KA,400 A,250 MVA complete all as specified and directed.

Supply only HRC fuse 6 to 10 Amp for 11 KV HT VCB of maximum short circuit rating 1.8 KA,400 A,250 MVA complete all as specified and directed.

Supply only HT fuse 1 Amp for 11 KV HT VCB of maximum short circuit rating 1.8 KA,400 A,250 MVA complete all as specified and directed.

Supply only self power relay CGI 14 S for RMU complete all as specified directed.

Supply only R-Y-B healthy indication lamp complete all as specified and directed.

Cutting vegetation and surface dressing not exceeding 15 cm deep including removing the materials to a distance not-exc 60 mtr complete all as specified and directed. (Note :- Item shall be executed twice in each installation and quantity is given for two operation. However unit rate to be quoted by the tendered for single operation only)

Supply only hand gloves of good quolity ISI marked 15 KV complete all as specified and directed.

NOTES :- 1. For the items for which specifications not mentioned any where in the tender, the IRC specifications shall be followed. 2. Unless otherwise specified the rates for PCC shall deemed to include the cost of formwork shuttering etc., required for complete and proper execution of the work. Refer Schedule "A" notes for details.

M/S GOSWAMI ENGINEERING

M/S KUMAR CONSTRUCTION