85915 REPAIR/ SERVICING AND MAINTENANCE OF HT TRANSFORMER, HT CABLE, GOD, 2 POLE, 4 POLE STRUCTURES, LIGHTNING ARRESTERS AT CHSC, UOD CHSC, 4 RMC QTRS, ALC QTRS, EME QTRS UNDER AGE E/M-II AT GE (SOUTH) PUNE

Amount

M&L for dehydration of transformer oil with mobile stream line transformer oil filtration plant at site with all accessories connected to transformer and carrying out filtration of oil to desired dielectric strength i.e. not less than 50 KV at 2.5 mm gap in existing position of transformer of any capacity complete at various sub stations located in Lower OT CHSC, UOT CHSC, 4RMC and ALC qtrs and other connected area under AOR of AGE E/M-II (South) Pune NOTE- (i) Proper record of Di-electric strength before commencement of work and after completion of work shall be maintainted by the contractor and submitted to GE/EIC for verification. (ii) Test certificates shall be submitted for before and after filtration for dielectric strength on the proper format. (iii) Transformer oil used for TOP UP will be measured and paid separately under relavent Item.

Supply & filling up of transformer oil conforming to IS -335 of 1993 as in topping up / replacement up to desired level of transformer oil capacity and Oil circuit brekar complete all as specified and as directed. [Note: Dielectric strength of oil should not be less than 50 KV/2.5mm complete all as specified and directed.]

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, reinstall it, reconnect all the incoming and out going cables by proper crimping using lugs of suitable size, taping the bushes / bus bars, using insulation tape and testing complete for 11 KV/22KV of following capacity complete all as specified and as directed. (Note:- (i) Gasket set, LT/HT side ceramic bushing, spindle for HT/LT side, rewinding, dehydration of oil shall be measured and paid separately under respective items (ii) Insurance of transformer shall be got done by contractor at his own cost to avoid any mishappening during transportation of transformer to workshop & back to site and a copy of same shall be submitted to GE/EIC)

100 to 200 KVA for 11 KV

250 to 750 KVA for 11 KV

100 to 250 KVA for 22 KV

Draining out all the transformer oil, dismantling and inspection of transformer core and winding (to be done by OEM or OEM's authorised service provider) 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 11 KV of capacity for the following:- (Note : (i) All materials required such as winding, LV/HV bushes, Silica gel breather etc will be measured and paid for separately (ii) Cost of transformer oil for cleaning by hosing down shall deemed to be included in the rate Quoted)

100 to 200 KVA for 11KV

250 to 750 KVA for 11KV

100 to 250 KVA for 22 KV

Supply and fixing of 11/22 KV HV coils, using new copper wire/strip of proper size including insulating materials (double insulation) as per existing size of core of transformer complete incl heating, varnishing complete all as specified and as directed.

Supply and fixing of 11/22 KV LV coils,using new copper wire/strip of proper size including insulating materials (double insulation)as per existing size of core of transformer complete incl heating, varnishing complete all as specified and as directed. (Note for Item No 5&6 (Windings) :- (i) HV and LV windings shall be wound from Super Enamel covered /Double Paper covered ,copper conductor/ coil. (ii) Current density for HV and LV winding should not be more than 2.8 Ampere per sq mm for copper and 1.6 Ampere per sq mm for Aluminium Conductor. (iii) The core/coil assembly shall be securely held in position to avoid any movement under short circuit conditions. (iv) Joints in the winding shall be not allowed.)

Material and labour to arrest the leakage of Transformer Oil from the body or bushing HT sides of Transformer capacity 11KV, 100 to 750 KVA including the followings:- (a) Taking down the top cover and refixing after replacing duly pasted with gasket. (b) Taking out the transformer Oil from the transformer upto the level suitable to carry out the repair work. (c) Taking out the bushings and replacemnt by new bushing (set of three) duly complete with suitable gasket nuts, bolts and washers and all connected accessories complete. (d) Refilling of Transformer Oil after completion of repair work and ensure that the Leak has been arrested. (e) Reassembling compleate and testing and commissioing.

All as per item No 7.00 above but 22 KV of capacity from 100 KVA to 250 KVA complete all as specified and as directed.

Material and labour to arrest the leakage of 11 KV Transformer Oil from the body or LT side bushings of Transformer capacity 100 to 750 KVA including the followings:- (a) Taking down the top cover and refixing after repair duly pasted with gasket. (b) Taking out the transformer Oil from the transformer upto the level suitable to carry out the repair work. (c) Taking out the bushings and replacemnt by new bushing (set of three) duly complete with suitable gasket nuts, bolts and washers and all connected accessories complete. d) Refilling of Transformer Oil after completion of repair work and ensure that the Leak has been arrested. e) Reassembling complete and testing and commissioing.

All as per item No 9 above but 22 KV of capacity from 100 KVA to 250 KVA complete all as specified and as directed.

Supply only Ceramic Bush insulators on LT side as per existing size, shape and specification for capacity 100 to 750 KVA, 11/0.433 KVolts transformers complete all as specified and as directed.

Supply only Ceramic Bush insulators on LT side as per existing size, shape and specification for capacity 100 to 250 KVA, 22/0.433 KVolts transformers complete all as specified and as directed.

Supply only Ceramic Bush insulators on HT side as per existing size, shape and specification for capacity 100 to 750 KVA, 11/0.433 KVolts transformers complete all as specified and as directed.

Supply only Ceramic Bush insulators on HT side as per existing size, shape and specification for capacity 100 to 250 KVA, 22/0.433 KVolts transformers complete all as specified and as directed.

Supply only brass spindle on LT side as per existing size, shape and specification for capacity 250 to 750 KVA, 11/0.433 KVolts transformers complete all as specified and as directed.

Supply only brass spindle on LT side as per existing size, shape and specification for capacity 100 to 250 KVA, 22/0.433 KVolts transformers complete all as specified and as directed.

Supply only brass spindle on HT side as per existing size, shape and specification for capacity 100 to 750 KVA, 11/0.433 KVolts transformers complete all as specified and as directed.

Supply only brass spindle on HT side as per existing size, shape and specification for capacity 100 to 250 KVA, 22/0.433 KVolts transformers complete all as specified and as directed.

Supply only top cover gasket set as per existing size, shape and specification complete for capacity 100 to 750 KVA , 11/0.433 KVolts transformers complete all as specified and as directed.

Supply only breather assembly as per existing size, shape and specification complete for capacity 100 to 750 KVA, 22 or 11 KV/0.433 KVolts transformers complete all as specified and as directed.

Supply only Tap Changer as per existing size, shape and specification complete for capacity 100 to 750 KVA , 11/0.433 KVolts transformers complete all as specified and as directed.

Supply only Tap Changer as per existing size, shape and specification complete for capacity 100 to 250 KVA, 22/0.433 KVolts transformers complete all as specified and as directed.

M&L for 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 synthetic enamel paint by spray paint incl writing SM No/MES No, capacity of transformer of 100 KVA to 750 KVA capacity all as directed by Engr-in-Charge.

Replacement of existing unserviceable silica jel with new crystal clear silica jel for the breather of transformer all as shown and directed by Engineer In charge.

M&L for Preventive maintenance and servicing of 11 KV HT OCB, MDO Type, Rated Current 400A, 50 Hz by taking out the breaker trolley of 11 KV HT OCB, cleaning from inside and outside by using CRC-26 spray and applying petrolium jelly to the all moveable parts, Male /female bushing/ terminals/ Spouts of OCB. Complete servicing of switchgear including checking the fixed / moving contacts of all the 3 phases adjusting electrical/ electronic/ mechanical components all as per mfg instruction manual and standard practice including testing and calibration of relay of any make (e.g. Earth Fault relay / Over current relay/ Master Trip relay etc) of 11 KV OCB Panel. The fault level setting of these relays shall be as per the MSEB Norms so that individual breaker will activate / trip to arrest the fault in local circuit and fault will not travel to main breakers at MRS and subsequently to MSEB Power Feeder. This job must be carried out through OEM or authorised personnel including maintaining and submit the testing report to the entire satisfaction of Engr-in-Charge. (Note :- (i) Spares used during servicing will be measured and paid separately under respective item of BOQ (ii) Old unserviceable material obtained shall be contractor's property as per Schedule of Credit)

Supply and fix in replacement of TNC switch, 220 VDC, suitable/compatible for operation of existing 11 KV OCB Breaker including dismantling of existing one complete all as directed.

Supply and Toping up of Insulation oil, suitable/compatible to Existing OCB 11 KV HT, di-electric strength not less than 50 KV complete all as specified and as directed.

S & F in replacement of 11 KV Current Transformer Ratio 100/5 Amp, Nominal system voltage (KV rms) : 11 KV, frequency 50 Hz, Rated output (VA burden) : 10 VA, Class of accuracy : 0.5S, Resin Cast, Ring Type CT, Termination S1 & S2 shall be clearly marked including all required control wiring and dismantling of 11 KV cable by taking proper shutdown with all safety aspects of any size and refixing it after installation of CT's complete all as directed by Engr-in-Charge.

Excavation in trenches not exc 1.5 metre wide and not exc 1.5 metre depth for laying of UG cable/pole foundation etc getting out including forming bottom surface to required level and gradient in soft/loose soil complete all as specified and as directed by Engineer Incharge.

Returning and filling in excavated soil including spreading leveling, watering, well ramming in layers not exc 25 Cm thick complete all as specified and directed by Engineer In charge.

Removing of excavated materials not exceeding 50 metre and depositing where directed by Engr in Charge at a level not exceeding 1.5 metre above the starting point complete all as specified and directed by Engineer In charge.

Cutting of road/hard standing for laying of cables through pipe including the removal of debris to distance not exc 50 m complete all as specified and directed.

M&L for PCC (1:2:4) type B1, (using 20mm graded stone aggregate) as in mass concrete filling complete all as specifed and directed

M & L for Reinforced concrete pipes of dia 150 mm 2 nos half round (each of 1 RM long for bottom and top ) including taking down/ Removing old unsv pipe as specified and directed by Engineer Incharge. (Note : Excavated area shall be levelled properly before laying of RCC Pipe.)

Supply and lay, test and commissioning HT XLPE cable , insulated, screended, PVC bedded, galvanised steel strip or wire armoured, electic power cable (heavy duty) with stranded aluminium conductor, conforming to IS, 11 KV "E" grade, cross sectional area laid in pipe/ducts/ trenches/ under floor/ under road all as specified of following sizes:- (Note :- Excavation, earth work, cable ptotection pipe shall be measured and paid sepretaly.)

3 core x 95 Sqmm

3 core x 120 Sqmm

All as per Ser. item 36.00 above but for 22 KV, 3 core X 120 sqmm complete all as specified and as directed.

Supply and laying 2.5mm thick synthetic rubber mat Confirming to IS:15652 : 2006 along with suitable adhesive/chemibound, PU Resin, water proofing compound and sealing material suitable for working Voltage up to 22KV with trolley movement complete all as specified and as directed by Engineer-in-Charge.

Taking down unserviceable GOD and supply and fixing Triple pole, mechanically operated mounted on insulator and steel frame, with operating mechanisum worked from ground level GOD 11 KV heavy duty, for current rating 400 amps complete all as specified and as directed.

Taking down and Supply and fix gang operated air break switch 22KV Triple pole, mechanically operated,mounted on insulator and steel frame, with operating mechanism worked from ground level, for current rating upto 200 amps, including locking arrangement including lever lock navtal with 3 keys and fixing on existing 4 pole structure complete all as specified and directed.

Taking down and S&F drop out (DO) fuse unit expulsion type, outdoor type 200 amps rating single pole mounted on two insulator fixed to and including MS channel with nuts bolts washers etc. synthetic bounded fuse carrying tube complete with HT fuse element 25A capacity for HT 22 KV working pressure and fixing on existing four pole structure complete all as specified and as directed.

Taking down and S&F drop out (DO) fuse unit expulsion type, outdoor type 200 amps rating single pole mounted on two insulator fixed to and including MS channel with nuts bolts washers etc. synthetic bounded fuse carrying tube complete with HT fuse element 25A capacity for HT 11 KV working pressure and fixing on existing four pole structure complete all as specified and as directed.

M & L for Earthing complete (for Generator, Transformer, lightning arrestor and feeder pillar box) with galvanised steel earth plate electrode '60cm × 60cm × 6mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below normal ground level) with top edge of the plate not less than 1.5 metres below normal ground level, connected to galvanised iron strip 32x6mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel earth strip protected by provision of GI 'medium grade' pipe 40mm bore including provision of concrete pit in PCC (1:2:4) type B1 (using 20mm graded stone aggregate) with 40mm thick cover in RCC (1:2:4) type B-1 reinforced with XPM (weight not less than 4 kg/sqm) and frame made out in MS angle iron of size 25x25x3mm with lugs 02 Nos and with MS handle made in 6mm dia round bar made to shape including GI 'medium grade' 20mm bore pipe for watering, perforated at bottom 1.75m long placed on top edge of earth plate including

SER ITEM NO. 43 Contd.... provision of mixture of charcoal dust & common salt packed upto minimum 150mm all around the earth plate, test point made out of ohosphorus bronze with fixing arrangement, funnel, wire mesh and earth work in hard/dense soil returning filling in and removal of surplus soil to a distance not exceeding 50mtr all as shown in electrical plate No. 3 of SSR Part I 2009 connected to earthing test point all as specified or indicated 'including testing on completion. (NOTE :- GI strip and GI pipe 40mm bore medium grade for encasing GI strip upto 7.50m length per earthing shall be deemed to be included in the unit rate.)

Dismantling and removing ACSR conductor of any type from pole after disconnecting all connection on insulator etc complete all as specified and as directed.

Dismantling cross arms of MS channel or angle iron section etc complete and setting aside for reuse/replacement within 50 mtr complete all as specified and as directed.

Supply and fix cross arms, bracing, support, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts in any shapes or size including one primer coat, one under coat and one finishing coat complete all as specified and as directed.

Supply and fix pin type insulator, Polymetric/poreceline, vitreous, white/brown including one galvanized mild steel spindle, two galvanized iron washers and one galvanized iron nut 150 mm height 150 mm dia 11000 volt grade complete all as specified and as directed.

M&L for cable end termination kit for 22 KV (E) 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 95 sqmm to 120 sqmm complete all as specified and directed.

Taking out the unserviceable Cable joint,supply and fixing Cable jointing kit for 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 95 sqmm complete all as specified and as directed.

Taking out the unserviceable Cable joint,supply and fixing Cable jointing kit for 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 120 sqmm sqmm complete all as specified and as directed.

Supply and fixing 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 to 95 sqmm complete all as specified and as directed.

Supply and fixing 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 120 to 185 sqmm complete all as specified and as directed.

S&F in replacement steel tube of size 80 bore, light grade galvanised with all fittings fixed to walls /floors /poles or under road etc. including taking down old unserviceable GI pipe of any bore complete all as specified and directed by Engineer Incharge. (Note :-The GI pipe should be fixed with pole by MS clamps and the MS work should be measured and paid separately).

M&L for scrapping out and cleaning of existing deteriorated old aluminium paint and applying painting to HT two pole structure including cross arms, supports, angle, clamps and all other items in the structure with one coat of aluminium paint and rewriting pole number complete all as specified and directed by Engineer In charge.

M&L for scrapping out and cleaning of existing deteriorated old aluminium paint and applying painting to HT four pole structure including cross arms, supports, angle, clamps and all other items in the structure with one coat of aluminium paint and rewriting pole number complete all as specified and directed by Engineer In charge.

M&L for painting of HT meter box after cleaning the body surface by rubbing with emery Paper to remove oil stains, dust etc and applying one coat of synthetic enamel paint complete all as specified and as directed.

Prunning / trimming the branches of trees at 4 pole / 2 pole structure complete and removing, disposal of the same upto 150 mtr away complete all as specified and directed by Engineer-in-Charge.

Supply and laying stone gravells of size 20mm to 40 mm for spreading, levelling in surrounding to transformer complete all as specified and as directed.

Testing and fault locating of HT underground cable with the help of cable fault locating machine at site including removal of moisture content from cable complete all as specified and directed by Engineer In charge. (Note:- The machine for locating of fault will be arranged by the contractor .The quoted rate shall deemed to be included for the fault locating machine. Necessary excavation & earthwork etc. shall be measured and paid seperately)

Supply only DO fuse element 11/22 KV of the ratings, upto 10-50 Amps Capacity complete all as specified and directed by Engineer In charge.

M&L for replacement of Lightning arrestors expulsion type complete with all fittings, 30KA discharge capacity,distribution class made out of silicon polymeric housing including taking down old unserviceable lightening arrester complete all as specified and directed by Engineer In charge.

M&L for maintenance free grounding Solution set earthing comprising of 17.2 mm pure copper earthing rod, 3m long, Copper terminal size of 40x6mm with 2 Nos M8 holes for termination. Electrode must be tested for a short circuit test of minimum 40 KA at CPRI/NABL. The earthing electrode will be placed in the ground after a bore is drilled to the depth of 3.5 Mtr. The bore drilling will be done with the help of a Pneumatic boring machine, 50 Kgs BFC will be placed in the bore to cover the earthing rod from all sides. BFC will be poured in Slurry form in a properly mixed condition. The Earth pit cover Square 300x300x240 mm to be provided to cover the Earth Pit and shall be made of reinforced FRP and should be capable of carrying the weight of 5 Tons. (Make : "U-PROTEC" earthing Pvt Ltd or equivalent in Ashlok safe earthings electrode Ltd /JEF technology) (NOTE :- (a) Rates of boring 3.5 Mtr for earth electrode, Copper strip 25x3 mm upto 7.5 Mtr from earth electrode is deemed to be included in the quoted rate. (b) On testing, after completion, if the earth resistance <5 ohms is not obtained, earthing will be rejuvenated at no extra cost till the desired earth resistance is obtained.)

Dismantling steel poles/ struts, any size and transporting to store and stacking properly complete all as specified and as directed.

Supply and fixing Steel tubular swaged poles complete with cast iron base plate, finial taper plug, bolts, nuts and screws as specified type 410 SP-31 (9 metres long) including necessary foundation and coping complete all as specified and as directed.

Supply and fixing Steel tubular swaged poles complete with cast iron base plate, finial taper plug, bolts, nuts and screws as specified type 410 SP-55 (11 metres long) including necessary foundation and coping complete all as specified and as directed.

Rama Electricals (BID ID -3135578)

Shriyansh sales and services (BID ID -3135410)

PROLINK COMPUTERS (BID ID -3130317)

UNIQUE ENGINEERS (BID ID -3135304)

Star Electrical (BID ID -3132603)

SBS Enterprises (BID ID -3134717)

CHAITANYA WINDWELL (BID ID -3130818)