PROVN OF SERVO VOLTAGE STABILIZER AND VOLTAGE STABILIZER FOR AIR CONDITIONER AND SPECIAL REPAIR BY REPLACEMENT OF 91 NOS CEILING FAN AND 03 NOS GEYSER AGAINST BER AT BM CAMP UNDER GE (I) (CGN) KOLKATA

Amount

Supply, Installation, Testing and commissioning of 160 KVA servo controlled Voltage stabilizer factory assembled floor mounted, complete (As per BIS 9815 part-I, reaffirmed 2019) with safety control and metering equipment mounted on common base frame comprising of following complete all as specified and as directed with the following accessories: (a) Servo controlled technology (b) Type -Three Phase, indoor, unbalanced supply, unbalance load (c) Oil cooling type (d) Testing - As per BIS : 9815 part-I Reaffirmed (2004) (e) Input voltage - 360 V - 480 V Ph to Ph (f) Output Voltage - 415+/- 1 % (g) Frequency - 50 Hz +/- 5 % (h) metering - Digital Microprocessor based (i) Efficiency - Not less than 98 % (j) Responsible time - less than 10 mili second (k) Insulation Resistance (IR)- More than 10 Mega ohms at 500 V DC (l) Protections Provided - Over load, short circuit Protection, High/low voltage cut off, by pass arrangement, single phase preventer. (m) 1st filling of transformer oil to be included by manufacturer. (n) Copper winding for buck - boost transformer (p) rate of correction of voltage should not be less tha 6 m/s between phase and neutral. the corrector shall be free from hunting during automatic operation. Note- Servo voltage stabilizer will be kept on 2nd floor of NCN bldg . Cost of necessay T&P shall be included in quoted rate.

Material and labour for Earthing complete with copper earth plate electrode of size 60cm x 60cm x 3.15mm burried directly in ground vertically at a depth of not less than 2.25 Mtrs below normal ground level with top edge of the earth plate at a depth not less than 1.5 Mtr below normal ground level surrounded from all sides by 15 cms thick and packed layer of charcoal dust and common salt filling in alternate layers etc and connected to and including copper earth strip 20 x 3 mm size upto 7.5 mtr by means of bolts, nuts, checknuts and washers made out of copper and protected by medium grade 40 mm dia 5 mtr long and connected to servo voltage stabilizer and GI pipe 20 mm medium grade as watering pipe including funnel, wire mesh, PCC Pit made up of PCC 1:2:4 type C2 and RCC cover 40 mm thick with 8 mm bar 15 c/c including excavation and earth work all as specified in SSR Part 1 2009.

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 185 sq mm 3.5 core complete all as directed.

Supply and fixing sheet matal enclosure, distrubution board (DB) TPN 4 ways, with bus bar with netural link 415 Volts, suitable for 4 pole MCCB, surface mounting as per IEC 61439-3 complete all as directed.

Supply and fixing of 4 Pole MCCB 250 to 320 Amp, 50 Hz, 415 Volts adjustable, 35/36 kA, 50 Hz Icu=100% complete all as specified and directed .

Supply & fixing of hot dip galvanized steel perforated cable tray rectanglar type comprising of base plate at bottom fixed to wall with suitable size of channel and outer perforated cover clamped together with GI clamp and GI nut bolts and of suitable width ranging from 4 inch to 8 inch to be fixed on wall complete all specified and as directed. Note: Disturbed surfaces to be made good, price deemed inclusive of the quoted rate.

Material and labour of earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required 20 x 3 mm copper strip complete incl saddles if required.

Boring/Drilling ( horizontally) manually under existing road ( maximum 10 M in width) without disturbing the road surface and inserting the GI pipe suitable for passing GI tubing of 40 to 100 mm dia bore complete all as directed. Note :- (i) Removal of surplus soil shall be demmed to be included in the unit rate quoted. (ii) GI Pipe shalle be measured and paid for separately under relevent item of Sch`A;.

Supplying and fixing Galvanised mild steel pipe /tubing, light grade complete with all fittings of 80 mm bore dia, laid in trenches / under roads, fixed to poles/ walls with Mild steel clamps , bolts , nuts and washers complete all as specified and directed. Note :- Excavation & Earth work shall be measured and paid separately)

Material and labour for plain cement concrete 1:3:6 Type C1 (using 20 mm graded crushed stone aggregate) as in coping, roof kerb or similar work, rounded or chamfered on edges including necessary form work including demolition old one complete all as specified and directed.

Taking down old unserviceable geyser of any capacity and type including removing materials to store for keeping in safe custody and making good disturbed surface to match the existing surface complete all as specified and as directed.

Supply and fixed electric water heater, storage type, steel body with copper inner tank and heating element upto 2KW capacity 25 litre, BEE rating not less than 4 star rated complete with all accessories such as safty valve, thermostate, NRV connection pipe complete all as specified and as directed.

Supply and fixing of BLDC base technology ceiling fan 1200 mm,(five-star rated as per BEE) min RPM 350, min air delivery 210 m3/min, 26-32 watt, 50 Hz, 220-240 V with remote control ceiling fan including fixing arrangement of any type including taking down of existing ceiling fans and deposited to MES store yard complete all as directed and as speified.

Supply and fixing of exhaust fan , steel body 300 mm sweep, single phase AC, 230 Volts, including frame and lauvers and connectiion and taking down of existing exhaust fan and deposited to MES store yard complete all as directed and as speified.

Supply and fixing of Voltage stabilizer for automatic operation, single phase naturally air cooled indoor type, with thermal overload protection and smart digital display & designed for input variation between 130 V to 280 V with output voltage stabilized at 230 V with accuracy of ± 2.5% and suitable for existing 1.5/2.0 ton capacity air conditioners complete all as specified and as directed.

Supply and fixing of surface mounted 6M power unit including starter socket 16 Amps with plug top with indicator and DP MCB complete all as specidied.

M/s Santosh Industrial Corporation (BID ID -3107236)

UNIVERSAL TRADING CENTRE (BID ID -3107573)

KALYPSO SALES & SERVICES (BID ID -3105720)

KT CONSTRUCTIONS (BID ID -3110000)

UNIVERSAL TRADING (BID ID -3110803)

RANJIT KUMAR HALDER (BID ID -3108946)

Megatrend Systems (BID ID -3106890)