REPAIR AND MAINT OF SERVO STABILIZER, TRANSFORMER AND IMPROVEMENT TO ELECTRIC SUB STN AT VARIOUS LOCATIONS UNDER GE (EAST) MATHURA

Amount

Disconnecting electrical connections of Servo voltage stabilizer by taking out transformer oil and storing for reuse after cleaning and removing moisture, taking all the assembly of voltage stabilizer and removing / repairing the unserviceable parts, reassembling it after repair testing and commissioning the voltage stabilizer of capacity 40 KVA to 50 KVA all as directed. Note: (i) Spares required for replacement of unserviceable parts shall be measured and paid separately under item No 05 to 10 of scheldule as supply only and cost of labour thereof is deemed to be included in quoted item rate. (ii) Cost of transportation, loading, unloading from site to workshop & back including its installation, testing & commissioning complete is included in the quoted item rate.

All as per srl item No. 01 here-in-above but for servo voltage stabilizer capacity 150 KVA.

All as per srl item No. 01 here-in-above but for servo voltage stabilizer capacity 200 KVA.

All as per srl item No. 01 here-in-above but for servo voltage stabilizer capacity 250 KVA.

Supply only PCB control card for automatic voltage correction suitable for voltage stabilizer of following capacities:

40 KVA to 50 KVA

Supply only carbon bushes for voltage stabilizer of following capacities:

40 KVA to 50 KVA

Supply only servo motor for voltage stabilizer of following capacities:

40 KVA to 50 KVA

Supply only Cast Iron dimmer gear set for automatic voltage correction for servo voltage stabilizer of capacities:

40 KVA to 50 KVA

Supply only Servo Dimmer Booster coil for automatic voltage correction suitable for servo stabilizer of following capacities:

40 KVA to 50 KVA

Supply only super enamelled copper conductor winding wire of same guage including necessary insulating materials for servo voltage stabilizer of capacities 40 KVA to 250 KVA.

Taking down old unserviceable control wiring and replacement of control wiring using suitable gauge copper conductor as per existing winding for stabilizer of capacity 15 KVA to 250 KVA complete all as specified and directed.

Supply and fixing in replacement voltmeter 0 to 500 volts 96x96mm flush type in stabilizers incl taking out the old unserviceable complete.

Supply and fixing in replacement ammeter 0-100 square shape 96 mm or as per sample. Make :- AE or equivalent approved make.

Electrical insulation rubber mating as per ISI and size 1mx2mx25mm thick complete all as directed. Make :- JAIPURIA Brothers or equivalent make given under list of makes.

Excavating in trenches for laying under ground cable, erection of poles and stays in any type of soil not exceeding 1.5 meter wide and not exceeding 1.5 meter deep and getting out complete all as specified and directed by Engr–in–charge.

Returning, filling in including spreading, levelling, watering and well ramming in layers not exceeding 25cm thick complete all as specified and directed by Engr in charge.

Removing surplus excavated material to a distance not exceeding 50m above the starting point complete all as specified and directed by Engr in charge.

M&L for sand cushioning to under ground cable in trenches in layers of 8 cm deep before laying the cable and 15 cm deep after laying and stretching the cable complete all as specified and directed by Engr in charge. Note:- Measurement shall be taken after gentling puning of sand.

Material and labour for Brick covering with width equal to length of brick as mechanical protection to cable with well burnt sub class ‘B’ bricks laid dry flat complete all as specified and directed by Engr in charge.

Supply, laying, jointing and testing of XLPE insulated, sheathed, armoured, heavy duty LT 1100 volts grade cable with aluminium conductor laid in trenches / pipes, fixed to poles / walls, fixing with suitable saddle/clamps complete all as directed including taking out the old burnt out cables all as directed of following sizes:-

70 sqmm 3.5 core.

95 Sqmm 3.5 core.

120 Sqmm 3.5 core.

150 Sqmm 3.5 core.

Cutting wild grass, bushes, creaper, unwanted vegetation from inside / surrounding of E/M sub station (transformers) including cutting creapers from barbed / cattle fencing of the sub stn as when directed and removing of unwanted material from installation fencing/compound and depositing where directed after taking proper electric shutdown form MRS Mathura. Note :- The item shall be operated maximum two times in entire period of contract in the same installations. (Area measured separately each time).

S&F Pre-painted galvalume aluminum zinc coating GI based corrugated steel sheet 0.50mm thick of any colour having tensile strength of 550 Mpa as per IS 15965: 2012 in roof covering/cladding to wall fixed with self tapping screws complete.

M&L for Rolled sections as in main and cross beams, hip and jack rafters; purlins where connected to common rafters and running rails and guides for sliding doors; fixed with angle cleats or other connecting plates complete.

M&L for applying two coats of synthetic enamel paint over a coat of red oxide primer including preparaption of new steel surface exceeding 10cm width or grith complete.

Material and labour for glow sign boards for E/M installtions made up of retroreflective material (blue colour) fixed on stainless sheet of size 1.5 mtr x 1.0 x 3 mm including mounting arrangement with stainless steel pipe of 20 mm for board beadings and 40 mm size for vertical erection of length 2.5 mtrs including connected civil work like digging foundations, PCC etc required for vertical erection of sign board and writing the letters on sign board in white all as directed.

Disconnecting electrical connections of step down transformers 11KV/0.433 KV after taking proper electric shutdown and labour and T&P for opening / stripping of the same, draining out oil in clean barrels, lifting the core & coil assembly, washing and cleaning dust, dirt & sludge deposit from all parts, cleaning and polishing of tapping contact point, making internal connections, providing new cork sheet gasket packing 10 mm thick and pouring in the insulating oil in the transformer, re-assembling the transformer after repair work, checking for any leakages including replacement of any unserviceable parts required to make it serviceable all as directed and placing the transformer at original or any other location and making all electric connections including testing the transformer to the entire satisfaction of Engr-in-Charge of following capacities. Note: (i) Spares required for replacement of unserviceable parts shall be measured and paid separately under relevant item of this BOQ as supply only and cost of labour thereof is deemed to be included in unit rate quoted. (ii) Cost of transportation, loading, unloading from sub station to workshop & back including its installation, testing & commissioning complete is deemed to be included in unit rate quoted.

50 KVA to 100 KVA

150 KVA to 250 KVA

300 KVA to 400 KVA

500 KVA to 630 KVA

Supply only LV brass stud full threaded with required nuts & washer suitable for 11KV/433V distribution transformer of following capacites:

50 KVA to 100 KVA.

150 KVA to 250 KVA.

300 KVA to 400 KVA.

500 KVA to 630 KVA

Supply only HV brass stud full threaded with required nuts & washer suitable for 11KV/433V distribution transformer of following capacites:

50 KVA to 100 KVA.

150 KVA to 250 KVA.

300 KVA to 400 KVA.

500 KVA to 630 KVA

Supply only LV bushing with gasket suitable for 11KV/433V distribution transformer of following capacites:-

50 KVA to 100 KVA.

150 KVA to 250 KVA.

300 KVA to 400 KVA.

500 KVA to 630 KVA

Supply only HV bushing with gasket and arcing horn suitable for 11KV/433V distribution transformer of following capacites:-

50 KVA to 100 KVA.

150 KVA to 250 KVA.

300 KVA to 400 KVA.

500 KVA to 630 KVA

Supply only 433 Volts LV coil with super enamelled copper wire winding of same guage including necessary insulating materials and baking the coil in vacuum furnace for transformer 50 KVA to 400 KVA capacity transformers complete all as directed.

Supply only 11 KV HV coil with super enamelled copper wire winding of same guage including necessary insulating materials and baking the coil in vacuum furnace for 50 KVA to 400 KVA capacity transformers complete all as directed.

Supply only new transformer oil, clear, transparent and free from all type of suspended matter or sediment, ISI marked as per IS:335/93 with amdt. No.1 (Reaffirmed: 2005) dehydrated to give BDV value not less than 60 KV when tested with 2.5 mm gap electrode for topping up complete all as directed. Make :- Savita / Powerlink / Power oil as approved.

Supply and fixing in repair transformer breather assembly oil seal type made of transparant PVC body heavy duty filled with good quality silica gel blue colour of capacity 800 grams complete all as specified and directed.

Supply and fixing in repair transformer breather assembly oil seal type made of transparant PVC body heavy duty filled with good quality silica gel blue colour of capacity 1200 grams complete all as specified and directed.

Material and labour for filtration / dehydration of insulating oil of transformer in position to achieve dielectric strength 50 KV or above (when tested with 2.5 mm gap electrode) complete all as directed.

Preparation of old painted external surface of transformer by removing the scrap, rust, washing including cleaning & spray painting with two coats of synthetic enamel grey paint over a coat of primer complete for the following capacities:-

50 KVA to 100 KVA.

150 KVA to 250 KVA.

315 KVA to 400 KVA.

Demolition of brick masonary platform and material and labour for construction of brick masonary platform 3 mtr x 2.5 mtr x 1.2 mtr with XPM fencing with weight not less than 4 Kgs/sqm and angle iron 50x50x6 mm for support gate with locking arrangement, 75mm PCC M-15 grade (Nominal mix) using 20mm graded stone aggregate as in floor after excavating. Applying three coats of white wash on plateform above GL. Applying two coats of synthetic enamel paint over a coat of red oxide on new steel surfaces including preparation of surface complete all as directed. Note : (a) Excavation shall be measured and paid seprately under relevant item of this BOQ. (b) Rate is inclusive of taking down transformer from foundation/ two pole structure, fixing on suitable trolley, making all electrical connections and restoring power supply and refixing the transformer after civil works all as directed.

Replacement of old unserviceable/ damaged temperature gauge with new temperature gauge suitable for transformer of any capacity and any type including all necessary accessories i.e. nipple, socket, complete all as specified and as directed by Engineer-In-Charge.

Supply and fixing in replacement LED security light 45 watt IP 66 including fixing on pole or any other location with the help of existing GI bracket including taking down existing unserviceable one complete all as directed at site. Make : C&S Cat Part No.LTESS18X2.5HPLED/LS45 W LED with LENS and equivalent in PHILIPS/ Bajaj/ Crompton.

Supply and fixing in replacement moulded case circuit breaker four pole 200 Amps 36 KA breaking capacity 415V, 50Hz with adjustable thermal and magnetic relay including taking out the old unserviceable complete all as directed.

Supply and fixing in replacement moulded case circuit breaker four pole 100 Amps 16 KA breaking capacity 415V, 50Hz including taking out the old unserviceable complete all as directed.

Supply and fixing cable tray suitable for supporting and carrying out LT cable upto transformer of size upto 240 sqmm complete all as directed.

shyam construction