REPAIR/MAINTENANCE OF 33KV YARD/ LINE AT AF STN PHALODI

Amount

M&L for repairs and servicing of 33 KV SF-6 Breacker including disassembly of operating mechanism parts, spring charging motor and mechanism well cleaning with petrol and CRC-226, replacing unserviceable parts/accessories oiling and greasing of moving parts, dismantling checking and well cleaning of pole insulator, checking of vacuum interrupters, well cleaning mechanism linkages drive insulators and fiber reinforced plastic frame around the vacuum interrupters including routine and periodical test as specified and directed by Engineer-in-Charge.

M&L for repair and servicing of 33 KV isolator including cleaning of complete moving & fixed contacts and apply petroleum jelly on contacts, oiling greasing of operating mechanism, tightening connections replacement of unserviceable parts, re-assembly the isolator after repair and routine and periodical testing all as specified and directed by Engineer-in-Charge.

M&L for repair, Routine and preventive maintenance of 33 KV Relay & Control panel including testing of relays contactor & other device checking inter connection in RTCC panel replacement of unserviceable spares all as specified and directed by Engineer-in-Charge.

M&L for spray painting of transformer of capacity 3.15 MVA, 33/11 KV Power Transformer complete with all accessories , after proper preparation of open surface taking due care with super enameled synthetic paint all as approved by the Engineer-in-Charge.

Painting /colour coding of caps of CTs, PTs, LAs etc of 33 KV Yard with special paint in Red, Yellow & Blue colour in phase, green in earth and black in transformer rail/ duct cover all as directed

Painting to MS supporting structure of 33 KV CTs & PTs with super enamelled synthetic paint two coats after preparation of existing rough surface all as directed.

Painting to MS supporting structure of 33 KV LAs & Distribution feeder with super enamelled synthetic paint two coats after preparation of existing rough surface all as directed.

Painting to MS supporting structure for 33 KV Isolator with super enamelled synthetic paint two coats after preparation of existing rough surface all as directed.

Painting to MS supporting structure for 33 KV SF-6 breaker of gantry type height 4.00 mtr with super enamelled synthetic paint two coats after preparation of existing rough surface all as directed.

Painting to MS Gantry for 33 KV structures, trusses complete including cone shape areas with super enamelled synthetic paint two coats after preparation of existing rough surface all as directed

Painting to channeling fencing upto existing height of fencing of 33 KV yard including pillars supporting channeling fencing with super enamelled synthetic paint two coats after preparation of existing rough surface all as directed.

Dehydration & filtration of transformer oil with portable filtration cum dehydration machine to improve the dielectric strength above 60 KV with in 1 minute with 2.5 mm Gap at site of any installation in cantt area and any capacity/make of transformer installed on out door plinth mounted. Testing of dielectric strength of dehydrated transformer oil of each transformer will be carried out in the presence of Eng-in-Charge

Supply and filling new mineral grade transformer oil EHV type confirming to IS-335 of 1983 for filling and for topping up in transformers having dielectric strength not less than 60 KV (Gap 2.5mm) complete all as directed by Engineer-in-charge.

Material and Labour in replacement of heat shrinkable straight through joint suitable for HT XLPE cable of size 300 Sqmm 3 core armoured 33000 volt grade heavy duty complete all as speicified and directed by Engineer-in-Charge

Material and Labour in replacement of heat shrinkable end termination joint outdoor type suitable for HT XLPE cable of size 300 Sqmm 3 core armoured 33000 volt grade heavy duty complete all as speicified and directed by Engineer-in-Charge

Supply and stringing ACSR conductor in replacement for re-stretching 33kv line securing on pole complete including binding wire, jointing sleeves aluminium tap and PG clamp etc of any size all as specified and as directed.

M&L for chemical earthing with copper earth plate electrode 90 cm X 60 cm X 5 mm buried directly in ground (earth pit not less than 3.0 mtr deep beliow ground level) with top edge of the plate not less than 2.25 mtrs below normal ground level,connecting to copper strip 32 X6 mm as earthing strip by means of bolts,nut check nut and washers protected with and including 65 mm dia light grade GI pipe,necessary excavation and earth work,magnesium sulphate (80 Kg) ),charcoal (4 Qtl) and common salt (4 Qtl) filling,watering arrangement with 40 mm GI pipe medium grade including PCC pit with pre cast RCC (1:2:4) cover ,GI funnel with test point,testing (all as shown in electrical plate No 5 and commissioning all as specified and directed. Note:- On testing ,after completion ,if the earth resistance below 1 Ohms is not obtained ,earthing will rejuvenated at no extra cost till the desired earth resistance is obtained.

Supply ,laying, jointing and testing only of GI tubing medium grade 20 mm bore with all fittings laid in trenches complete all as specified and directed by engineer-in-charge. Note:- Excavation and earth work and joints shall be measured and paid separately.

Supply ,laying, jointing and testing only of GI tubing medium grade 15 mm bore with all fittings laid in trenches complete all as specified and directed by engineer-in-charge. Note:- Excavation and earth work and joints shall be measured and paid separately.

S & F PVC Plastic short body Bib cock serewed one end for iron pipe size 15 mm dia .

M & L for earthing complete with galvanized steel earth plate 60 cm X 60 cm X 6 mm thick buried directly (vertically) in ground to depth not less than 2.25 metres deep below ground level, with top edge of earth plate not less than 1.5 m below ground level, connected to galvanized strip 32 x 6mm earth lead by means of bolts, nuts, check nuts and washers of galvanized iron or steel besides welding at all joints as shown in drawing and including excavation and earth work, GI pipe light grade 40mm bore for protection of strip and connected to continous earth lead on pole/test point, supplying and laying charcoal dust common salt PCC 1:2:4 type B1, chamber and MS angle iron frame 40x40x3mm and RCC cover 40mm thick (1:2:4) type B1 using 20mm graded stone aggregate reinforced with 6mm dia round bars @ 75mm C/C both ways with MS handle 12mm dia, PGI funnel and wire mesh, 20mm dia GI pipe medium grade for watering all as shown in electrical plate No 5 complete all as specified and directed.

M & L for earthing complete with copper earth plate 60 cm X 60 cm X 3.15 mm thick buried directly (vertically) in ground to depth not less than 2.25 metres deep below ground level, with top edge of earth plate not less than 1.5 m below ground level, connected to copper strip 20 x 3 mm earth lead by means of bolts, nuts, check nuts and washers of galvanized iron or steel besides welding at all joints as shown in drawing and including excavation and earth work, GI pipe light grade 40mm bore for protection of strip and connected to continous earth lead on pole/test point, supplying and laying charcoal dust common salt PCC 1:2:4 type B1, chamber and MS angle iron frame 40x40x3mm and RCC cover 40mm thick (1:2:4) type B1 using 20mm graded stone aggregate reinforced with 6mm dia round bars @ 75mm C/C both ways with MS handle 12mm dia, PGI funnel and wire mesh, 20mm dia GI pipe medium grade for watering all as shown in electrical plate No 5 complete all as specified and directed.

M&L for shifting of transformer from MES yard to 33 kv sub stn including construction of PCC plinth for mounting of transformer and provision for HT and LT cable input and output respectively complete all as directed.

Supply and laying/spreading 10 mm graded stone coarse aggregate 80 mm thick of any description and in any position at electrical 2/4 pole structure all as directed.

M & L for Sand filling under floors, suface levelling or in foundations including watering and consolidation complete all as specified and directed.

M&L for relaying and re-routing control cable in existing 40 mm GI pipe from CT/PT to APFC panel all as directed.

M&L in replacement pin type porcelain insulator for 33 kv transmission line all as specified and directed.

M&L in replacement shackle type porcelain insulator for 33 kv transmission line all as specified and directed.

Supply install, testing and commissioning of 33 KV, single phase, oil cooled, outdoor type, current transformer(CT) of ratio 400/5-5 Amp class 1.0-5P10 burden 15 VA insulation level 70/170 KV conforming IS-2705 including all control wiring with copper conductor multicore of suitable size complete all as specified and directed.

Supply, install, testing and commissioning of 33 KV single phase, outdoor type, potential transformer(PT) , oil cooled of ratio 33KV/rt3/110V/rt3/10V/rt3 class 0.5-3 Burden 50 VA-50 VA, insulation level 70/170KV, voltage factor 1.2 cont and 1.9 for 30 sec, confirming to IS-3156 including all control wiring with copper conductor multi core of suitable size complete all as specified and directed.

Supply & fixing of Lightning arrestor expulsion type complete with all fittings, transmission class, discharge capacity 65 KA capacity for 33 KV all as specified and directed.

HT 11 KV sock proof Rubber mat of size 1 mtr x 2 mtr x 3mm with specification : sock proof and anti slipery Chemically inert,Ensure superior accuracy in blast patterns,Superior protection from acids, oils and Lightweight

Opening / disconnecting the electrical connection of defective / burnt out overhead ACSR conductor of 33 kv transmission line, providing required thimbles/connectors , replacing burnout insulators and reconnecting the ACSR conductors in previous location with existing HT OH Line all as directed. NOTE:- (i) Contractor should depute Electrician and helper and other required equipments such as transportation,hydra,minor excavation etc to attend the Faults / Complaints on daily basis as per complaint trace out and no extra payment will be made out on this account and as directed by Engineer-in-charge. (ii) Contractor / Supervisor will collect complaint of Electric faults,cable faults,No light faults from concern JE on daily basis and will complete them the same day. (iii) Contractor should provide equipments like Excavation Tools, Discharge rod, Tester, Test lamp, Multi meter, Side plier & related essential tools, Industrial Safety helmet, Hand gloves,safety materials etc on his own arrangement as per site requirement for rectifying the complaint and no other payment will be made for the same.

Akarsha Enterprises