Provision of 200 KVA 3 Phase Voltage Stabilizer for Bldg No P 192 at NCN Goa and Provision of 10 Nos of Deficient Exhaust Fans for Kitchen of Married Accn Bldg No P 76 P 77 and P78 at 2W Det Goa under GE Gomantak Vasco

Amount

Surface excavation n.exc (not exceeding) 30 cm deep and averaging 15cm in deep and getting out in soft/disintegrated rock

Excavation in post holes (or similar holes) each n exc 0.5 cum getting out returning filling in and ramming earth or broken rubble mixed with earth around in layers not exc 25 cm, watering and removing surplus soil to a distance n exc 50 m and making good srface in soft/disintegrated rock.

M & L of hard core of gauge exc 63 mm but n exc 100mm, deposited, spread and levelled in layers n exc 15 cm thick, watered and rammed to a true surface.

M & L 40 mm cement concrete B-1, 1:2: 4 as in floor (using 20 mm graded aggr) incl finished the concrete surface with broom finished when the concrete is green.

M & L PCC type C-2, 1:3:6 (using 40mm grded agregate) in foundation filling or mass concrete, for fixing of posts/ poles etc complete.

S & F roof trussed framed, trussed, purlins, crane gantries, rails and fastenings and heavy brackets framing (Beam, tee, angles, channel or flat sections) including distance pieces, cleats etc. (Fe- 410-W (Gde E-250 quality A)

M&L for preparation of new steel surfaces and apply two coat of Anti corrossive paint over a coat of anti corresive primer.

S & F pre painted galvalume aluminium zinc coating GI based corrugated steel sheet 0.50 mm thick of an colour having tensile strength of 550 Mpa as in roof covring cladding to wall fixed with self tapping screws as specified .

Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out from soft/disintegrated rock

M & L cement concrete in foundation filling and mass concrete type D2, 1:4:8 (using 40 mm graded aggregate)

M&L for returning, filling in, including spreading, levelling, watering and well ramming (in soft/ disintegrated rocks)in layers not exc 25cm

M & L pre cast cement concrete block masonry with solid block masonry type C-1, 1:3:6 set and jointed in cement mortar 1:6

M & L 15 mm thick rendering on PCC block masonry surfaces in cement mortar 1:6 incl even and smooth without using extra cement.

M & L two coats of cement based paint over a coat of alkali resistant primer including preparation of new plastered surfaces.

Removing excavated rock/soil exc 50m but not exc 250m and depositing where directed at a level n exc 1.5 m above the starting point.

M & L 100mm cement concrete C-2, 1:3: 6 (using 40 mm graded aggr) as in sub base of floor

Supply, installation,testing and commissioning of static voltage stabilizer for automatic IGBT controlled (unbalanced load), Microprocessor based Digital three phase, 4 wire, Air cooled, outdoor type & designed for input variation between 340 V to 480 V with output voltage stabilized at 415 volt with accuracy ± 1%(P-P) complete all as specified and directed by Engr-in-charge with following :-

Specifications:- (1) Type - IGBT Sgtatic Voltage Stablizer (Out door type) (2) Input Voltage Range 340V - 480 V ,AC Three phase. (3) Output Voltage : 415± 1% (Phase to Phase}+) adjustable. (4) Rated Freq 50HZ (5) Wave form distortion : Nil (6) Response time not to exceed 10 miliseconds. (7) Duty cycle : Continous 100% loading at lowest input voltage for indefinite time. (8) Rate of correction : Greater than 5000 volts/sec,the said voltage regulator should sense as well as correct any voltage sag/ fluctuation within 20 milisecons , i.e one wave form. (9) Overload capacity : 125% ,it should be able to take startup load with high in rush currents. (10) Efficiency : Greater than 96% at 100% and highest voltage input. (11) Type of load - Three phase unbalanced type. (12) Digital display voltmeter /Ampmeter. (13) Cooling type: Air Cooled. (14) Protections:_ (i) MCCB/MCB for overload & short circuit protection. (ii) Intelligent bypass & Manual bypass arrangement.

(15) Voltage regulations shall be performed by IGBT driven PWM inverter operating at around 20 KHZ switching frequency with typical voltage correcrion time of 20 ms (one cycle for 50 Hz supply) so that output voltage complies with the rquirements of ITIC curve for regulated voltage supply to electronic machinery. (16) Voltage regulation should be achieved by superimposition of PWM wave on incoming wave,without ant brake in the power path. (17) Static voltage regulator should use only static parts for real time voltage correction.It should not use any such moving parts like relay or brush which limits the rate of correction of voltage regulation. (18) There should be no mswitching in the power path,current interruption,transition or step changes duiring voltage reulation. ((19) Capacity 200 KVA. (20) Warranty 5 years . Make :Volina or equivalent

M/L for earthing complete with copper earth plate eletrode 60cm x 60cm x3.15mm thick buried dirctly in ground vertically (earth pit not less than 2.25 mtr below ground level) with top edge of plat not less than 1.5 mtr below ground level connected to copper strip 20x3mm by means of bolts. nuts,check nuts and washers etc including strip protection pipe 40mm dia up to 7.5m length , all as per electrical plate No 3 of SSR part 1 Including neccessary excavation in disintergratedand hard soil and 20mm dia GI pipe with funel for watering PCC earth chamber 100mm thick precast RCC cover with suitable precast RCC frame and earth test point and testing in presence of Engr -in -Charge.

Supply, Laying, joining & testing LT XLPE Insulated & sheathed armoured electric cables with multistranded aluminium conductor cable 1100 volts grade, laid in trenches/ ducts or fixed to poles/walls or laid under roads/paths/drains/culverts duly encased in galvanised steel pipe of suitable sizes including cable gland of suitable sizes & aluminium lugs for connection for cross- sectional area 240 Sq mm 3.5 Core complete all as specified and directed.

Excavation in trenches not exceeding 1.5 m width and not exc 1.5m in depth for Laying of UG cable getting out in hard/dense soil complete all as specified.

Supply and fix for DWC high density polyethylene pipes having outer side wall corrugated and inner surface plain confirming to IS 14930 (Part-I & II) for protection of underground cable laid in trenches/floor/fixed on pole/wall including all fittings and clamps as required complete all as specified and directed of 77 mm dia size.

Returning filling in including spreading levelling watering and well ramming in layers not exceeding 25 cm in thick using excavated hard/dense soil.

Removal of surplus soil to a distance not exceeding 50 m and depositing where directed by Engr-in-charge.

Supply and laying GI tubing with all fittings such as nipple,bend,elbow,union etc laid in trenches for GI tubing 80 mm dia medium grade

Taking down cement plaster on brick work or stone walls including racking out joints ,hacking for key,scrubing down with water etc

Material & Labour for rendering in CM 1 : 4 ,15mm thickness on brick/cement/stone surfaces and finishes the surface even and smooth without using extra cement

Material & Labour for rendering in CM 1 : 6 ,10mm thickness on brick/cement/stone surfaces and finishes the surface even and smooth without using extra cement

Material & Labour for providing two coats of oil-bound distemper over a coat of alkali-resistand primer on new plastered surfaces wall care putty 3 mm thick including necessary preparation to surfaces complete all as specified and as directed

Material & Labour two coats of acrylic emulsion extenior paint (anti fungal painting-APEX or Equivalent) over a coat of acrylic amulsion primer on new surface including preparation of surface of any description all as specified and directed by Engr-in-Charge.

M&L for preparation of new plastered surface & applying three coats of white wash in walls complete all as specified and directed by Engineer-in-charge.

Cutting openings, through brick walls for door, window and other openings or enlarging existing openings. converting window into door openings, etc. or cutting out defective brick work for under-pinning, including providing, fixing and removing shoring, cleaning and stacking bricks, removing surplus serviceable bricks, hard-core, etc.. to store and rubbish not exc. 50m

Material and labour for point wiring complete as specified with 1100 V grade 1.5 Sqmm two runs of single core PVC insulated unsheathed multistranded copper conductor cable FRLS grade, conforming to relevant IS, drawn through and including PVC casing and caping (ISI Marked) with all accessories fixed on surfaces of wall, ceiling, including sunk pressed steel terminal boxes made out of 2 mm thick MS sheet concealed in walls with 3 mm thick laminated Hylem sheet top cover fixed with brass screws for housing switches, socket, regulator etc including one run of 1.5 sqmm single core PVC insulated and unsheathed copper conductor cable FRLS grade as earth continuity wire connected to common earth and earth dolly including testing complete all as specified and directed by Engr-in-Charge for One light/fan/exhaust fan point controlled by one switch.

Supply and fix switch piano flush type single pole, one way 5 Amp.

Supply and fix ceiling rose, surface bakelite, 65x50 mm, two to three terminals complete.

Supply & fixing exhaust fan 225mm/230mm sweep (metal body), heavy duty, 230 volts including necesaary fixing arrangements such as fastner studs,nuts,washers and suitable connecting wire of suitable size all as specified and directed by Engr-in-Charge.

K M SUBHANAIAH

VED PRAKASH ARORA

DURGAI ELECTRICALS

Bharat Sales Corporation

Mehta and Co.

AATREYA CONSTRUCTION

S and G Constructions

Shine Enterprises

M/S jvsr constructions

D.K. ENTERPRISES