PROVN OF VOLTAGE STABILISER FOR PUMP HOUSE AND AC PLANT BLOCK I AND II AT AF STN DEOLALI

Amount

Supply, install, comissioining and testing of servo controlled voltage stabilizer confirming to BIS-9815 part -I: 1994 reaffirmed 2009, 3 phase, 50 HZ of capcity 250 KVA, naturally oil cooled, outdoor, unbalanced type, copper wound, digital display type, relay free operation including first filling of insulation oil as per capacity complete with following specifications (i) Input voltage 340 v - 480 v (ii) Output voltage stablized at 415 volt with ±1 % irrespective to load and input voltage as per clause 9.1 of BIS(iii) rate frequency 50 Hz(iv)Response time not exceeding 10 Milli sec(v)Sensitivity ± 1 %(vi) Rate of correction 8 volt/sec for single phase and 13 v / sec for 3 phase operation(vii)No load losses less than 0.5 %(viii) full load losses less than 2.5% (ix) Digital ammeter and voltmeter.(x) Protectionc a.Over load/short circuit protactions b.High/low voltage cutout c. By pass arrangement for emergency e. Single pahse sequence change protaction. Voltage stablizer should be mounted on MS rolling tyres with locking arrangement, lifting hooks, earthing lugs, including first fillinf of insulating oil as per capcity, including MCCB 4 pole at incomer of rating as per 250 KVA complete all as s[ecified and directed by Engr-in-Charge.Make:-Volina/Vintech/V-Guard/AE/Aplab.

Supply, install, comissioining and testing of servo controlled voltage stabilizer confirming to BIS-9815 part -I: 1994 reaffirmed 2009, 3 phase, 50 HZ of capcity 200 KVA, naturally oil cooled, outdoor, unbalanced type, copper wound, digital display type, relay free operation including first filling of insulation oil as per capacity complete with following specifications(i) Input voltage 340 v - 480 v .(ii) Output voltage stablized at 415 volt with ±1 %(iii) rate frequency 50 Hz(iv)Response time not exceeding 10 Milli sec(v)Sensitivity ± 1 % (vi) Rate of correction 20 volt/ sec for 3 phase operation (vii)No load losses less than 0.5 % (viii) full load losses less than 2.5% (ix) Digital ammeter and voltmeter. (x) Protectionc a.Over load/short circuit protactions b.High/low voltage cutout c. By pass arrangement for emergency e. Single pahse sequence change protaction. Voltage stablizer should be mounted on MS rolling tyres with locking arrangement, lifting hooks, earthing lugs, including first fillinf of insulating oil as per capcity, including MCCB 4 pole at incomer of rating as per 200 KVA complete all as s[ecified and directed by Engr-in-Charge.Make:-Volina/Vintech/V-Guard/AE/Aplab.

Supply and laying LT XLPE insulated PVC heavy duty armoured cable 1100 volts grade multi stranded aluminium conductor electric cable cross sectional area 185 Sqmm 3.5 Core including necessary connection with provision of lugs & cable gland fixing arrangements including providing cable route indicator on cable route made out by PCC and embossed in as " LT cable route" complete all as specified and directed.

Supply and laying LT XLPE insulated PVC heavy duty armoured cable 1100 volts grade multi stranded aluminium conductor electric cable cross sectional area 150 Sqmm 3.5 Core including necessary connection with provision of lugs & cable gland fixing arrangements including providing cable route indicator on cable route made out by PCC and embossed in as " LT cable route" complete all as specified and directed.

Material and labour for earthing complete with GI earth plate electrode of size 60cm x 60 cm x6mm thick buried directly in ground ( earth pit not less than 2.25 mtr deep below ground level) with top edge of earth plate not less than 1.5 mtr below ground level connected to GI strip 32 x 6 mm by means of of galvanized iron nuts & bolts or as directed at site by Engineer -in-Charge protected by GI Pipe 40 mm dia light grade and connected to test point and further connected to equipment, mcachinery, electrical panel or any other as directed by Engineer-in-Charge, which to be earthed, all as shown in electrical plate No 3 of SSR Part I including providion of concrete earth pit constructed in PCC 1:3:6 type C-1 as earth pit and PCC 1:2:4 type B-1 for cover slab with necessary reinforcement with handle for lifting also including provision of funnel with wiremesh with 20 mm GI pipe medium grade for watering, charcoal and salt in alternative layers of 15 cm thick all around the electrode , including necessary excavation and earth work , testing and commissioning complete all as directed at site

Excavation in trenches n. exc 1.5 Mtr wide and n. exc 1.5 mtr in depth and getting out soft/loose type soil complete all as specified and directed.

Returning Filling in including spreading, leveling, watering & well ramming in layers n. exc 25 Cm complete all as directed..

Removing excavated/Surplus soil n exc 50 Mtr & depositing where directed at a level n. exc 1.5 Mtr above the starting point complete all as directed..

Material & labour for fixing of DWC pipes it should be flexible & should allow deformation in diameter as well as in joints under external load & soil natural movement , socket & spigot joint with elastometric sealing ring, it should be highly corrosive resistant & it should be impact resistant, chemical resistant, flexible, light weight & it should have high flow capacity of 90/75 mm outer and inner dia complete with coupler, elbows, joints and necessary joints required for completion of work all as specified & as directed by the Enguneer-in-charge.

Excavation in trenches, in exc 1.5m wide and 1.5m in depth for foundation etc in soft/loose soil

Surface dressing in exc 15cm deep in soft & loose soil all as specified and directed by Engineer-in-Charge.

Removing excavated meterial exc 50m and depoting where directed at a level in exc 1.5m above the starting point

M&L for plain cement concrete type C-1, 1:3:6 (using 40mm graded granite stone aggregate) in foundations, filling and mass concrete.

M&L for providing broken boulder/stones hardcore of guage in exc 63mm, deposited pread and levelled in layers in exc 15cm thick, watered and rammed to a true surface all as specified and directed.

M&L PCC 75mm thick 1:4:8 type D-2 using 40mm graded stone aggregate as in sub base of floor all as specified and directed.

M&L PCC 25mm thick 1:2:4 (20mm graded stone aggregate) as in floor finish all as specified and directed.

S&F steel work in tubular trusses including special shaped washer etc. Complete using ERW or induction butt welded tubes conforming to IS 1161-1979 grade St-240 fixed independently.

S&F roof trusses (framed), trussed, purlins, crane gantries, rails and fastenings and heavy bracket framing (Beam, tee, angle, channel or flat sections) including distance pieces, cleats etc. Fe-290(Gde E-165).

S&F plates (plain or chequered) channels, square cut or notched (ordinary and counter sunk) forming holes, without any attachment Fe 410-W (Gde-E-250) quality-A.

S&F Pre-painted galvalume aluminium zinc coating GI based corrugated steel sheet 0.50mm of an colour having tensile strength of 550MPA as in roof covering/cladding to wall, fixed with self tapping screws all as specified directed.

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

M&L two coats of synthetic enamel painting to new steel and steel based material surfaces exc 10cm width or girth over a coat of red oxide incl preparation.

MAHIMA CONSTRUCTION

SIDDHIVINAYAK ENTERPRISES

NARMARAJ ELECTRICALS

SHRI SULAI ELECTRICALS

Datar Electrical and Engg Services

sapana enterprises

United Enterprises

Shree Sai Samarth Enterprises

DIAMOND ENTERPRISES