REPAIR/ REPLACEMENT OF EXTERNAL ELECTRIFICATION AND OTHER CONNECTED WORKS AT AF STN SONEGAON NAGPUR

Amount

M & L for servicing of AB Switch by cleaning contacts, removing carbon, adjusting the fixed and moving contacts, guides, applying petroleum gelly for easy operation, replacement of jumpers and connections, bolts, nuts etc, if required complete all as specified and directed.

Taking down carefully existing unserviceable expulsion/drop out fuse with all fitting complete and removing the material to store for safe custody for issue under schedule of credit , supply and fix expulsion/drop out fuse unit with silverised brass contactors and fuse barrel suitable for 11 KV system triple pole of rating 200A fused lazed upto 60 A complete with all fittings all as specified and as directed.

S & F in repair battery charger unit 30 V DC 5 A current for VCB complete all as specified and directed. Make : AMRO or its equivalent in other makes.

M&L for On load Filteration of unbalance Voltage stabilizer Power oil by continuous circulation of transformer oil through mechanical filters to achieve the desired dielectric strength of 35 KV for one minute at 4 mm gap complete all as specified and as directed. Note: 1.Oil samples are to collected from top and bottom of oil tank and test results to be submitted for each sample before and after filteration.

Supply and topping up /replacement of new voltage stabilizer oil of dielectric strength 35 KV at 4 mm gap in transformers of various capacity installed in various locations . Make of Voltage stablizer oil: Power Oil / Indian Oil / Rinkyl / Apar Note : New oil in the Voltage Stablizer will be filled in the Voltage Stablizer only after filteration and dehydration of existing oil of theVoltage Stablizer. (b) New oil shall be supplied in sealed barrel with test result and test certificate.

Excavating in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth for foundation of poles, stays, laying of UG cable/ pipes & getting out in soft/loose soil complete all as specified and as directed.

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

Returning, filling in including spreading, levelling, watering and well ramming in layers not exceeding 25 cm in soft/loose soil complete all as specified and directed.

M & L for providing dry river sand as in sand cushioning for underground cable protection including punning down sand in layers complete all as specified & directed Note: Only punned thickness of sand shall be considered for measurement purposes

Supplying and laying common burnt clay sub class ‘B’ bricks of size 230 mm x 113 mm x 75 mm, laid perpendicular to axis of cable for protection of LT cables complete all as specified and directed.

M & L road cutting of size 30 cm width x 45 cm depth for laying of cables including making good the road with necessary returning filling and bituminious portion with concrete and bituminious mixture and cemented portion with PCC in 1:2:4 , 15 cm thick from top and matching the surfaces with existing complete all as specified and directed.

Supplying and laying GI pipe Light grade (ISI marked) 50mm bore with connecting accessories, laid under road/ drain/fixed on wall etc for protection of cables including taking down complete all as specified and directed

Supplying, laying, testing and Commissioning cable XLPE insulated aluminium conductor,stranded, armoured, PVC sheathed, LT 1100 volt grade, heavy duty as per IS-7098 and providing suitable lugs and cable glands, laid in trenches/ ducts/fixed to wall/ roof/ poles including taking down existing cables complete all as specified and directed of following sizes.

(a) 120Sqmm, 3.5 core

(b) 95 sqmm, 3.5 core

(c) 70 sqmm, 3.5 core

(d) 50 sqmm, 3.5 core

(e) 35 sqmm, 3.5 core

(f) 25 sqmm, 3.5 core

(g) 16 sqmm, 4 core

(h) 10 sqmm, 2 core

M&L for On load Filteration of transformer oil by continuous circulation of transformer oil through mechanical filters to achieve the desired dielectric strength of 65.5 KV for one minute at 2.5 mm gap complete all as specified and as directed. Note: 1.Oil samples are to collected from top and bottom of oil tank and test results to be submitted for each sample before and after filteration.

Supply and topping up /replacement of new transformer oil of dielectric strength 65.5 KV at 2.5 mm gap in transformers of various capacity installed in various locations . Make of Voltage stablizer oil: Power Oil / Indian Oil / Rinkyl / Apar Note : New Transformer oil will be filled in the Transformer only after filteration and dehydration of existing oil of the transformer. (b) New oil shall be supplied in sealed barrel with test result and test certificate.

Opening the top of the transformer of capacity upto 315 KVA draining out transformer oil, cleaning the internal portion of tank, core and connections by mechanical means and force feeding of transformer oil and flushing out deposits, sludge etc, replacement of studs, bushings, washers etc and closing the top incuding new set of tropicalized gaskets complete all as specified and directed.

Taking out old / exhausted silica gel from trasformer breather, cleaning of the breather assembly, supply and filling new silica gel in the breather, refixing of the breather in the transformer all as directed.

Replacement of old unserviceable breather of the transformer with new breather of 500 grams capacity for transformer complete all as specified and as directed.

Taking out the VCB 11 KV Make CG installed in Power house, cleaning the contacts, lubrication of moving parts all as specified and refixing the same with checking of control wiring , testing & Calibration for satisfactory functioning all as directed by Eng-in-Charge complete all as specified and directed

Taking out the 3phase Voltage stabilizer input voltage 300 to 480V, output voltage 415 +/-1% for unbalance load Make Sintrac in Power house, cleaning the contacts, lubrication of moving parts including servo meter all as specified and refixing the same with checking of control wiring , testing & Calibration of Auto/Manual system for satisfactory functioning all as directed by Eng-in-Charge complete all as specified and directed

Supply and fix Isolator TPN 63 A 415 Volts 10 KA breaking Capacity B Series characterstics mounted on DIN Rail and connecting up all including taking down complete all as specified and as directed.

Supply and fix MCCB 125 A, 4 pole, 415 Volts 36 KA breaking Capacity ,AAN frame fixed on Existing panel in power house/feeder panel and connecting up all including taking down complete all as specified and as directed & in the process of fixing of MCCB minor drilling, clamping ,screw ,nut bolt shall be deemed to be included in quoted rate.

All as per item No 22 here in before but of 100Amp complete all as specified and as directed.

All as per item No 22 here in before but of 200Amp complete all as specified and as directed.

S & F in repairs 20 Watt LED Bldg security light with a nominal system. The luminaire shall have rated system lifetime of 50,000 burning hours at L70. The luminaire should have cool white colour temperature (CCT>5000K) and a CRI>70. The luminaire shall meet IP66 rating with THD<20% & pf>0.9. The luminaire housing should be made of pressure die cast aluminimum. The total power consumption should not exceed 25W (including driver) pre wired fitted on and including two Nos PVC block of suitable size and connection up to tube light fitting with connecting up with copper 3 core flexible cord of minimum size 0.5 Sqmm and testing complete including LED lamp complete all as specified and as directed.

S & F Cable route indicator / Marker made up of PCC block in cement mortar 1:3:6 (20 mm graded aggregate) of size 900 x 300 x 100 mm thick with DANGER / 440 VOLTS, LT CABLE / MES embossing on cable route indicator / Marker including painting as per approved colour and buried in ground 45 cms including necessary earth work ( as required / ordered at site) and taking down complete all as specified and as directed

S & F cable jointing kit for 1.1 KV grade cable for straight through joint complete with jointing material , heat shrink type and accessories suitable for 3.5/4 core XLPE, armoured, AI conductor cable of size 70 to 95 Sqmm complete all as specified.

S & F electrical insulation rubber mat of size 1m X 2m X 10mm as per IS standards for protection of leakage current in HT/LT installations complete all as specified and as directed.

Paragon Electrotechnics (BID ID -3073349)

Chinmaya Enteprises (BID ID -3077258)