REPAIR /MAINT TO HIGH TENSION (HT) KV SYSTEM, BREAKERS, RMUs, REPAIR/ REWINDING OF DISTRIBUTION TRANSFORMERS, DEHYDRATION/ TOPPING UP OF TRANSFORMER OIL INCLUDING ALLIED WORKS UNDER GE DSSC WELLINGTON

Taking down steel tubular pole steel tubular swaged poles complete with cast iron base plate, final taper plug, bolts, nuts and screws complete all as specified and directed

Taking down HT UG cable all size complete as specified and directed

Taking down old/ US earthing from four pole structure , two pole structure and other eqpt and complete all as specified and directed.

Supply and install steel tubular swaged poles complete with cast iron base plate, final taper plug, bolts, nuts and screws as specified type 410SP-55 (11.0 meter long) and including painting with two coats of aluminium paint over one coat of red oxide and black bituminous paint on the hidden surface in foundation including drilling of holes for fixing of D Iron clamp and holes for continuous GI earth wire as required complete all as specified and directed.

M&L in repair for Pin type , porcelain, vitreous, white , brown or green insulator including one galvanised mild steel spindle , two galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, 150 mm height,150 mm dia for 11000 volts grade complete all as specified and as directed.

M & L in repair lightening arrester expulsion type non-linear metal oxide type, complete with all fittings, transmission/distribution class, discharge capacity 65 Kilo amps suitable for up to 11 KV out door / indoor type including necessary connection and fittings all as per IS-3070 Part-III and IEC 1994 including dismantling of old unsv lightening arrestor including strap bolts, nuts and washers etc. complete all as specified and as directed .

M&L in repair 11 KV, GOD from existing two/four pole structure and Supply , fix Air Break, Gang operated Triple pole switches/device , mechanically operated, mounted on insulator and steel frame, with operating mechanism of GI tubing 25 mm suitable length worked from ground level including locking accessories complete for current rating up to 400 Amps complete with 12 insulators all as specified and directed. Make: Jaipuria/Atlas

M&L for anti-climbing devices, comprising of 2.24 mm dia galvanised steel 2-strand barbed wire with 2.00 mm dia barbs wrapped spirally round poles, to a length of 0.5 mtr to 1.0 mtr clamped & properly secured or all as specified & as directed .

M&L in repair for expulsion fuse (DO Fuse) single pole 11000 Volts 100 Amps including dismantling the old unsv fuse complete all as specified and directed .

M&L for servicing the existing Gang operated Air Break switch, operated from ground, of any type/capacity, 11 KV, 3 Pole, including greasing or by applying petroleum jelly, replacing worn out/damaged/rusted contacts (both Male & Female), nuts, bolts, washers, etc. and providing coloured sleeves for jumper connections complete all as specified and as directed.

M&L tinned copper flexible jumper of current rating 200A/400A (as per ground requirement) of minimum 2 mtr length suitable RYB heat shrink sleeves for operating voltage 11 KV, after carefully removing the old unserviceable flexible jumpers from AB switches complete all as specified and as directed .

S&F danger notice plate for HT of size 25 cm x 20 cm x 1.60 mm size, mild steel sheet, vitreous, powder coated, letters and figures and conventional skull & bones in signal red colour and fixed with MS clamps bolts of required size complete all as specified and as directed .

Supplying and laying synthetic Rubber insulated mats 2.5 mm thick for voltage upto 11 kv for electrical purpose as per IS 15652-2006, (superseding IS 5424) suitable for electrical shock safety of sizes 2m x 1m all complete all as specified and as directed.

Supply, laying & testing cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty)with stranded aluminium conductor, 11000 volts grade, of size 3 core 95 sq mm complete all as specified and as directed .

Supply, laying & testing cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty)with stranded aluminium conductor, 11000 volts grade, of size 3 core 120 sq mm complete all as specified and as directed ..

Supply, laying & testing cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty)with stranded aluminium conductor, 11000 volts grade, of size 3 core 185 sq mm complete all as specified and as directed ..

Supply and fixing for replacement of cable end termination kit with all accessories for earthed system grade cable heat shrinkable outdoor type suitable for 3 core 11 KV XLPE cable size 50-95 Sq mm complete all as specified and as directed.

Supply and fixing for replacement of cable end termination kit with all accessories for earthed system grade cable heat shrinkable outdoor type suitable for 3 core 11 KV XLPE cable size 120-185 Sq mm complete all as specified and as directed.

Supply and fix cable jointing kit for 11 KV (Earthed) grade cable for outdoor straight through Heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Al conductor cable of size 50 to 95 sq mm complete all as specified and as directed.

Supply and fix cable jointing kit for 11 KV (Earthed) grade cable for outdoor straight through Heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Al conductor cable of size 120 to 185 sq mm complete all as specified and as directed by the Engr-in-Charge/GE.

Excavation in trenches not exceeding 1.5M wide and not exceeding 1.5M in depth and getting out in soft/loose soil for laying of under ground cable and foundation of poles.etc complete as specified and as directed..

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

Removing of excavated material n.exc 50m and depositing where directed at a level n.exc 1.5m above the starting point complete all as specified and as directed.

ling is to be submitted by the contractor.

Supply and laying well burnt old size sub class 'B' bricks of size 230mm x 115mm x 75mm bricks in trenches for cable protection of U/G cables above sand cushioning complete all as specified and directed.

M&L for cutting the existing hardstanding/PCC/WBM road at a depth of not less than 75 cm & 30 cm in width for passing of HT cables through GI pipes, returning filling in, complete incl finishing the surfaces by providing cement concrete type B1 (1:2:4) with 20 mm graded aggregate upto 20 cm, finishing to a uniform smooth surface.

M & L for PCC (1:2:4) type B-2,(using 40mm graded stone aggregate) for coping of poles etc including necessary form work etc complete all as specified and directed.

M&L for 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 including Dismantling of cross arms of MS channel or angle sections etc complete all as directed.

M & L for providing PCC (1:4:8) type D-2,(40 mm graded aggregate) Cement concrete in foundations filling and mass concrete including necessary form work etc complete all as specified and directed. (For PCC Bed of Poles)

M&L for spreading & leveling of stone aggregates of size 40 to 60 mm on Sand filling in the Sub-Stns complete all as specified and as directed.

M&L for earthing complete with galvanized steel earth plate electrode 600 x 600 x 6 mm thick buried directly in ground ( earth pit not less than 2.25 mtrs deep below ground level) with the top edge of the earth plate not less than 1.5 mtr below normal ground level, connected to galvanized iron earth strip 32 x 6 mm by means of bolts, nuts, check nuts, and washers of galvanized iron or steel all shown in electrical plate No 3 connected to earthing test point on completion with and including 40 mm bore medium grade GI protection pipe ( up to 7.5 mtrs long) for earth and 20 mm GI medium grade for watering including PCC Chamber pit & cover with suitable lifting hooks , with funnel, wire mesh, common salt, charcoal filling, necessary excavation and earth work in any type of soil including testing on completion all as specified and directed .

M & L for providing PCC (1:3:6) type C-2,(40 mm graded aggregate) Cement concrete in foundations filling and mass concrete including necessary form work etc complete all as specified and directed.

Supply & fixing of Surge Protector Transient Discriminating (TD) Technology with Thermal Disconnector fuse of 315 A in-built, Operating Voltage 300-305 V, Maximum Surge Rating 50KA @ 8/20 Micro sec.with Status indication flag per mode, audible alarm and voltage-free contactsTDS, 3PH, 50KA/PH, 240V, TT Contacts as per 1449 Edition & IEC 61643 -1 (including interconnection copper conductor & Fixing accessories) in the existing Panel complete all as specified and directed Notes:- SURGE PROTECTION SYSTEM : Class –II (Point of Entry Protection Sub Circuit Panel) (a) Enhanced Din Rail Surge Protector Transient Discriminating (TD) Technology (b) Technology with Thermal Disconnect fuse of 315 A in build, (c ) Operating Voltage 300-305 V, Maximum Surge Rating 50KA @ 8/20 Micro sec. (d) Status indication flag per mode, audible alarm and voltage-free contacts (e) Standard: UL 1449 Edition & IEC 61643 -1 (f) Including Interconnection Conductor with Suitable Sockets Conduit of distance 20 Mtrs

Supply and spreading clean dry riddled sand in trenches for cushioning all as specified for cable protection in trenches / ducts complete all as directed. Note 1: The punned down thickness shall only be measured. Note 2: Riddled soil earth shall be approved by GE in writing before incorporation in work.

Description all as per item No. 36.00 but for 315 KVA complete all as specified and as directed.

Supply and fixing for replacement of Gasket cork Sheet 6 mm thick superior quality (as per site requirement) complete all as specified and as directed.

Supply and fixing for replacement of HT bushing with brass spindle, suitable gas kit, nut and washers , suitable insulators and connecting plate of transformer 11/0.433 KV of capacity up to 500 KVA complete all as specified and directed.

Supply and Fixing for Replacement of silica gel Clear View type of 11 KV/0.433 KV transformer capacity up to 500 KVA complete all as specified and as directed.

Supply and Fixing for Replacement of 500 gram breather assembly with suitable reducer of ground requirement for Clear View type of 11 KV/0.433 KV transformer capacity up to 500 KVA complete all as specified and as directed.

Supply and fixing in repairs Dial type Temperature gauge, 0 to 100 ◦C range complete with suitable to any make, type and capacity of transformer complete all as specified and as directed.

Supply and filling in Transformers with Transformer oil first hand of dielectric strength not less than 60 KV at 2.5 mm Gap, conforming to IS-335 including testing of BDV of Oil complete all as specified and as directed.

Note for Item Nos 56.00 to 70.00: Subject job of Overhauling/Repair of RMU & VCB units shall comprise of the following essential/necessary services/jobs : (i) SF 6 gas pressure level to be checked. (ii) SF 6 gas filling to be carried out when the gas pressure is low. (iii) All the connected meters to be checked and calibrated if required. (iv) Checking of control wiring, Push buttons, Indication lamps, tripping coil, tightening and any other related defects to be rectified/replaced in the event of non-functioning/working. (v) Checking and calibration of connected relays. (vi) Cost of additional hardware like bolts, nuts, washers, spring washers etc. to put the RMU/VCB in 100% serviceable condition is deemed to be included in the rates quoted. (vii) The complete job of overhauling/servicing of the RMU/VCB Units is to be got done from the OEM/Sister concern/Auth channel partner only & in the presence of rep of Engr-in-Charge. (viii) All works shall be carried out with the help of pre-planned programs so that shutdowns can be given in a systematic manner. The pre-planned program shall be submitted by the contractor in consultation with the Engr-in-Charge. Contractor shall not be able to claim any compensation if a scheduled shut down could not be given on dates planned for. (ix) Test certificate in Original duly signed by the Reps of OEM/Contr & MES after repair/overhau

Disconnecting HT/LT connection of transformer at site and Material & Labour for preparing old painted outer surfaces of Transformers , 11/0.433 KV including all exposed surfaces of steel items fixed with the transformer without dismantling and applying two coats of weather proof synthetic enamel paint of approved grade/shade including writing of SM/MES numbers and Capacity of Transformer complete all as specified and as directed by the Engr-in-Charge/GE for Transformers of following capacity :

Description all as per item No. 36.00 but for 400 KVA complete all as specified and as directed.

Description all as per item No. 36.00 but for 500 KVA complete all as specified and as directed.

Description all as per item No. 49.00 but for 100 KVA complete all as specified and as directed.

Description all as per item No. 49.00 but for 250 KVA complete all as specified and as directed.

Disconnecting HT connection of structure and Material and Labour for preparing old painted surfaces and applying two coats of aluminium paint on HT Steel tubular poles of any type/size for 2-pole structure including cross arms, back plates, bracings, all exposed surfaces of steel items fixed with the pole without dismantling complete all as specified and as directed by the Engr-in-Charge/GE.

Description all as per item No. 49.00 but for 315 KVA complete all as specified and as directed.

M & L for opening the cover of HT 11 KV 630A-800A, RMU Panel, cleaning the fixed and moving contacts inside the VCB properly, checking of alignment of spring charging mechanism, servicing and greasing all movable mechanism, replacement of defective MCB, wiring and checking the battery charger and the indoor cable terminal Boots complete all as specified and directed . Note :- Overhauling shall be done through OEM only

Supply and fixing in replacement of Indoor Cable terminal Boot ( set of 3) for HT 11 KV 630A-800 A, RMU Panel complete all as specified and directed.

Supply and fixing in repair Battery 26 AH , 12V DC with inbuilt charging unit for HT 11 KV 630A RMU Panel complete all as specified and directed.

Supply and fixing in Gas spring Piston complete all as specified and directed.

Supply and fixing in repair / replacement of relay and controller calibration and firm ware update of controller complete all as specified and directed

M & L for overhauling of VCB unit of capacity up 630 A to 800A, 11 KV, 250 MVA of any make/model for servicing, repairs, door assembly unit and re-assembling complete comprising of essential/necessary services including testing and commissioning to the entire satisfaction of Engr-in-Charge/GE. Note :- Overhauling shall be done through OEM only

Supply and fixing in repair of Current Transformer indoor type core 1 : 50-25/5A , 100/5 A Class 1.0, Burden : 15 VA for metering and core 2 : 50-25/5A class 5 P 10 , Burden : 15 VA for protection complete all as specified and directed

Supply and fixing in repair of Resin cast Potential Transformer for 11 KV / 110V , single phase , Class 1 , frequency 50 Hz to 60 Hzs, copper winding , Burden 50 VA complete all as specified and directed

Supply and fixing in repair of Spout top and bottom 11 KV complete all as specified and directed.

Supply and fixing in repair of Bus bar insulator complete all as specified and directed.

Supply and fixing in repair of Heater and Thermostat complete all as specified and directed.

Supply and fixing in repair of Indicator Lamp complete all as specified and directed.

Supply and fixing in repair of Breaker control switch complete all as specified and directed .

Supply and fixing in repair of Ammeter complete all as specified and directed.

Supply and fixing in repair of FRB sheet, bolts nuts etc complete all as specified and directed.

M&L in repair of cabin door and locking system including cutting, welding and riveting of door sheet and hinges of CSSI and CSS2, refitting the same including suitable paint and match the existing colour etc complete all as specified and directed

Supply and fix in repair / necessary services of APFC Panel capacitor for power factor improvement of any type / capacity all as specified and directed .

M&L in repair for chain link fencing incl line wires, any size/type of standard rails/angles, straining bolts etc. including provision of binding wires complete all as specified & as dir

ected .

Supply , installation, Commissioning and Testing of Maintenance Free chemical Copper Bonded Steel Earth Rod of 3 meter length and 14.2 mm diameter. Auger a hole of diameter 3 inch and 3 mtr depth in the soil, placing the Earth rods in to the augured hole, hammering the rods to 1 feet depth, removing excavated material, filling with Ground Enhancement Material (GEM) of not less than 22 Kgs , Conforming to IEC 62561-7 Standard, Premixing the GEM into slurry form using water (not more than 10 Ltrs), Pouring the GEM mixture in the augured hole and filling, incl of PVC Heavy duty earth chamber of size 250 mm Dia , 260 mm Height with round cover and minimum 5 ton load bearing capacity, marking of earth resistance value on it by painting, complete all as specified and as directed .

Description all as per item No. 49.00 but for 400 KVA complete all as specified and as directed.

Description all as per item No. 54.00 but for 3/4 pole structure complete all as specified and as directed.

M&L in repair for MS angle iron post & struts in fencing incl cutting tops to shape as directed, drilling holes, notching for wire etc., flat iron fillets for securing wire mesh conforming to Fe-290 E-165 including painting with one coat of red oxide primer & two coats of aluminium paint complete all as specified & as directed .

Notes for item No. 75.00:- (A ) Properties of copper bounded Steel Earth Rod:- (a) The outer surface must be molecularly bonded with uniform layer of 250 micron Copper, 99.9% pure electrolytic coating. (b) Nickel interface must be provided between the copper and steel to avoid the galvanic corrosion. (c) Must be capable of withstanding fusing current of 20 KA @ 1 Sec. (d) Earth rod must be in compliance with IEC 62305- 2, NBC 2010 and IEEE 80. Rod should be tested as per IEC-62561-2 standard. (e) Tensile strength greater than 80000 PSI on 12 mm. (f) High resistance to corrosion. (g) Rod shall be tested as per IEC 62561- 2 standard in complaince with IEC 62305 standard (B) Properties of GEM :- (Ground Enhancement Matrills) (a) Must be carbon based superior conductive material. (b) Resistivity must be less than 2 Ω-cm. (c) Must not cause corrosion to copper when in contact. (d) Must not expand or experience any shrinkage once set. (e) Must not depend on the continuous presence of water / moisture / salt to maintain its conductivity (f) Must not decompose or leach out with time. (g) Must not contain hazardous chemicals as per IEC 62561-7 standard. (h) Flexural and possess compressive strength as per relevant standard.

Disconnecting HT/LT connection of transformer, 11000/433V, 3 Phase, 4 wire system and opening up the top cover of transformer of capacity 100 KVA for checking the conditions to carryout repairs at site, including draining out oil from the transformer in suitable container and repair to the transformer with replacement of parts (as required), checking the lead connection from winding to bush rods including necessary soldering/jointing etc and after complete repair, refilling the dehydrated oil, replacing perished gasket with new gasket of same size and testing on full load after connecting the HT/LT connections complete all as specified and as directed.

Supply only for HT Fuse Wire 10 Amps to 100 Amps complete all as specified and directed .

Square Metre