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Tender For Provision Of Servo Voltage Stabilizer For Adm Area At Afs Jaipur; 1 Supply, installation, testing and commissioning of Servocontrolledvoltagestabilizer(confirmingtoBIS 9815 (Part-I):1994,reaffirmation2019latestversion). Threephase,fourwire(RYBN),50Hz,NaturallyOil cooled, outdoor, unbalanced type, cooper wound, metallic body duly power coated with lifting Hooks two nos, digital display type, relay free smooth and silent operation with 1st fillingof Transformer oil up to level havingfollowing specification:-(a) Capacity:400 KVA (b) Type - Suitablefor unbalancedload and unbalanced input.(c) Input Voltage- 360V-480V, Input Frequency-50Hz. (d) Output Voltage- Stabilized at any designed/desired voltage 415/+- 1%.(e) Rated Frequency- 50Hz.(f) Waveform destortion- Nil.(g) Response Time- Not to exceed 20 mili Second.(h) Sensitivity- (+/- 1%).(j) Rate of correctio- Not less than 6 V per Second between phase and neutral. (k) Efficiency- moer than 95%.(I) Type of load- Three Phase unbalanced type.(m) Metering- DIgital display Voltmeter/Ameter with multifunctional meter.(n) Operating Temprature- for inddor use upto max ambient temprature + 55 degree Celcius.(o) Class of insulation- Class F.(p) Mode of operation- Automatic/Manual.(q) Winding Temprature rise- Max 55 degree Celcius (10 degree above operating temprature).(r) Transformer oil- IS 335 marked. (s) Core-CRGO M4 grade/CRNO (Cold roll grain oriented)/Cold rolled non oriented.(v) auto transformer (variac)-100% copper wound Electrolytic grade. (u) losses- as per IS norms.(w) Power factor- not less than 0.95.(x) Protection-(i) Overload protections (ii) Short Circuit protections.(iii) High/Low voltage cutoff.(iv) Bypass arrangement in case of emergency.(v) Single phase sequence change/phase fail protection.(vi) Earth fault protection.(aa) Standered fitting and Accessories i.e Marking plate, lifting lugs, CI rollers, Earthing Terminals, cable box etc.Note : Specification given in this item shall be supersede the specification mentioned in Particular Specification. 2 Excavation in trenches not exc 1.5 mtrs wide & not exc 3 mtrs in depth for taking out/laying of pipes/cables etc & getting out in Hard/Dense soilcomplete all as specified and directed . 3 Removing excavated materials not exceeding 50 mtrs away and depositing where directed at a level not exceeding 1.5 mtrs above the starting pointcomplete all as specified and directed . 4 Returning, filling in trenches, including spreading, leveling, watering and well ramming in layers not exceeding 25 cm complete all as specified and directed. 5 Supply and lay double wall corrugated (DWC) high density polythene pipes having corrugation on the outer wall and plain surface on the inner wall confirming to ISI 14930 ( Part I and II) for protection of underground cables of size.Outer/Inner dia of pipe 63/50 mmwith all fittings. laid in trenches / road/ nallah or fixed along wall. poles or laid under floor (including cutting floor/Road and making good to match with existing adjoining surface etc for cable protection all as specified(excavation and earth work shall be measured and paid separately). Rate for Inserting cable in pipe deemed to be included in quoted rate. 6 Supply and lay double wall corrugated (DWC) high density polythene pipes having corrugation on the outer wall and plain surface on the inner wall confirming to ISI 14930 ( Part I and II) for protection of underground cables of size.Outer/Inner dia of pipe 50/38 mmwith all fittings. laid in trenches / road/ nallah or fixed along wall. poles or laid under floor (including cutting floor/Road and making good to match with existing adjoining surface etc for cable protection all as specified(excavation and earth work shall be measured and paid separately). Rate for Inserting cable in pipe deemed to be included in quoted rate. 7 Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 300 sq mm 3.5 core 8 Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 240 sq mm 3.5 core all as specified and as directed. 9 Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 120 sq mm 3.5 core all as specified and as directed. 10 Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 25 sq mm 3.5 core all as specified and as directed. 11 Supply and fix ON LOAD change over switch 415V in sheet metal enclosures 4 pole of capacity 630 Amps all as specified and as directed. 12 Supply and fix ON LOAD change over switch 415V in sheet metal enclosures 4 pole of capacity 125 Amps.all as specified and as directed. 13 Supply installation and testing3 phase and neutral, 415 voltsfactory made, Outdoor type,free standing, floor mounting, dust and vermin proof cubical type, LT panel fabricated from 3.15 mm thick( minimum) CRCA sheet steel powder coated with Grey shade (RAL-7035) after seven tank process having thickness of 50-6- microns fully compartmentalized design with 4 Nos of busbars made of high conductivity 99.9% pure copper of ETP grade suitable for 400 amps pre-wired with suitable size of copper strip,including complete wiring and comprising ofINCOMMING (a)MCCB 400 A FP 36KA with Microprocessor based release for O/C + S/C, spreader link and Ext Rotary Handle. (b ) Digital Ampere Meter(c) Indicating light RYB LED 230 V AC (d) Digital Volt meter (e) Control MCB 6A, 10 KA (f) CT 400/5A tape wound. OUTGOING (a) MCCB 320A,FP, 36 KA with TM release for O/C + S/C, spreader link and Ext Rotary Handle-01 Nos (b) MCCB 200A , FP, 25 KA with TM release for O/C + S/C, spreader link and Ext Rotary Handle-02 Nos. (c) MCB TPN 63 A,FP, 10 KA -03 Nos 14 M&L for Earthing complete with galvanised steel earth plate electrode 60cm×60cm× 6mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not lessthan 1.5 metres below normal ground level, using galvanised iron strip 25×4mm as earthing lead connected by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 connected to earthing test point all as specified or indicated including testing on completion. NOTE : (i) Earth resistance value should be less than 5 Ohms (ii) Item includes the cost of 7.5 m GI pipe for protection of earth strip.(iii) PCC pits shall be provided atleast 500 mm away from the pit and not on the earth pit itself and the extra cost of additional length of watering pipe, bends , elbows etc. shall be deemed to be included in the quoted rate. (iv) excavation and earth work shall be measured and paid separately. 15 M&L for Earthing complete with Copper Plate electrode 60cm×60cm× 3.15 mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not lessthan 1.5 metres below normal ground level, using Copper strip 20x3 mm as earthing lead connected by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 connected to earthing test point all as specified or indicated including testing on completion. NOTE : (i) Earth resistance value should be less than 5 Ohms (ii) Item includes the cost of 7.5 m GI pipe for protection of earth strip.(iii) PCC pits shall be provided atleast 500 mm away from the pit and not on the earth pit itself and the extra cost of additional length of watering pipe, bends , elbows etc. shall be deemed to be included in the quoted rate. (iv) excavation and earth work shall be measured and paid separately. 16 Dismantling floor, hearth or wall tiling including cement mortar bedding (but not backing), removing serviceable tiles to store and rubbish off the premises 17 M&L for Cement concrete type C-2,1:3:6 (40 mm graded aggregate) 100 mm Thick complete all as spd and directed 18 M&L for Sand filling under floors/Blocks or in foundations including watering and consolidation 19 M&L forMachine pressed precast concrete interlocking paver block any shape and size confirming to IS 15658-2006 of 60 mm thickness, M-35 Grade except tiles all as specified and as directed.
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