PROVN OF 3 PHASE ISOLATION TRANSFORMER AND INSTALLATION OF NEW AUTOMATIC WEATHER STATION ALONG WITH ALLIED WORKS AT AF STN AWANTIPUR

Amount

E/M PORTION

Supply, laying or passing through pipe underground cable PVC sheathed, XLPE insulated armoured LT 1100 volts grade with aluminium conductor of size 16 Sqmm, 2 core including making electrical connection with thimbles complete all as specified.

Excavation in trenches not exceeding 1.5 mtr wide and not exceeding 1.5 mtr in depth for laying of cables or other items and getting out soil in soft/loose soil complete all as specifed.

Returning filling in including spreading levelling watering and well ramming in layers not exceeding 25 cm complete all as specified.

Removing excavated material not exceeding 50 mtr and depositing where directed in a level not exceeding 1.5 mtr above the starting point of any type of soil complete all as specified.

M&L for sand cushioning to under ground cable provided with a layer of sand 8 cm depth before laying of cable and 15 cm depth after laying and stretching the cable all as specified. Note: Punned thickness of sand shall be measured & paid.

M&L for well burnt sub class 'B' bricks of nominal size 230X115X75 mm abutting each other for mechanical protection of cable with width equal to lenght of brick complete all as specified.

Supply, installation, testing & commisioning in replacement of factory made (CPRI test certified manufacturer) LT feeder pillar box of minimum size 60cm (Height) x 40cm (Width) x 30 cm (Depth), indoor type, floor mounted, cubical compartmentalized type suitable for 240 volts, single phase, 50 Hz supply system all as specified and directed having busbar chamber with insulated aluminium busbar 100 Amps rating (100% neutral) installed on porcelain insulators. The panel shall be dust and vermin proof made of 3 mm (outer) & 2 mm (inner compartment door) CRCA sheet duly powder coated, panel mounted on angle iron 40x40x6 mm frame having 4 Nos legs 45 cm long of 40x40x6 mm angle iron, 15 cm grouted in PCC of ratio 1:2:4 and 30 cm clear space front ground level. Front & back opening type with aprons for cable entry with locking arrangement including internal wiring with PVC insulated multistranded copper conductor cables of suitable size, thimbling and cable entry boxes with cable glands. The scope of the work also includes supply and fixing the following:- INCOMING:- (a) MCB SPN 32 Amps, 10 kA rupturing capacity, double pole, 240 volts, 50 Hz, Adjustable thermal Fixed magnetic release type - 01 No. Make: Havells/Legrand/ABB (c ) Voltmeter digital type 0-500 Volts (d) Ammeter digital type 0-100 Amps (e) Indicating lamp (LED type) RYB - 01 Set of three OUTGOING:- (a) MCB SPN 16 Amps, 10 kA rupturing capacity, 2 pole, 240 Volts, 50 Hz AC, Adjustable thermal Fixed magnetic release type,connected through solid busbar of suitable size in both incoming & outgoing side - 03 No.Make: Havells/Legrand/ABB

Earthing complete with GI earth plate electrode 60cmX60cmX6mm thick burried directly in ground (earth pit not less than 2.25m deep below the ground level) with top edge of the plate not less than 1.5m below normal ground level connected to GI strip 32X6mm as earthing lead by means of bolts, nuts, checknuts and washers of GI or steel all as shown in electrical plate No 5 including charcoal dust common salt and 20mm GI medium grade watering pipe, 40mm GI medium grade pipe for protection of GI strip upto test point, including funnel with wire mesh, including PCC 1:2:4 type B-1 using 20mm graded stone aggregate with angle iron frame 40mm thick RCC cover with 8mm steel bar 100C/C complete all as directed by Engr in Charge and testing for required value on completion.

Supply, install, testing & commissioning Servo controlled oil cooled Voltage stabilizer for automatic operation, three phase naturally oil cooled indoor type, with by pass arrangement & suitable capacity MCCB microprocessor based release & designed for input variation between 360 V to 480 V with output voltage stabilized at 415 with accuracy ± 1% and speed of correction 8 Volts per second per phase and 13 Volt per second phase to phase and of capacity 75 KVA conforming to BIS 9815:Part1: 1994), three phase naturally oil cooled Indoor Typesuitable for 3 Ph and unbalanced load type copper wound metallic body duly powder coated with lifting hook two nos, digital display type, relay free smooth opeartion and silent opeartion with Ist filling of transformer oil upto level with under voltage protection, over voltage protection, and automatic phase correction along with digital display type multi function meters for RYB with provision for bypass arrangement, short circuit protection complete all as specified and as directed.

Supply, install, testing & commissioning Isolation Transformer oil cooled Voltage stabilizer for automatic operation, three phase naturally oil cooled indoor type, with by pass arrangement & suitable capacity MCCB & designed for input variation between 330 V to 470 V with output voltage stabilized at 415 with accuracy ± 1% and of capacity 63 KVA, with under voltage protection, over voltage protection, and automatic phase correction complete all as specified and as directed.

Supply, install, test and commissioning of out-door type LT distribution board made out of 3.0mm thick CRCA sheet, CPRI approved, double door totally enclosed, weather, dust and vermin proof as per IS with front and rear opening, suitable locking arrangement, top with sloping canopy having aluminium bus bar of 400Amp capacity for RYB and for neutral and insulated with insulators, including provision of cable glands, connecting incoming and outgoing cables necessary PCC 1:3:6 type C1 (20mm graded stone aggregate) in foundation and suitable size of angle iron grouted at terrace floor above 300mm from floor level, with and including provision of the following, Incomer-(a) MCCB FP, 100 Amp rating with microprocessor release, Icu = 35KA, Ics = 100% of Icu with microprocessor release (minimum 70% to 100%) - 01 No. (incoming), Outgoing- (b) ATS 100 Amps, 4 pole with complete card (c) MCCB 100 Amp breaking capacity 25 kA, FP- 01 Nos (outgoing), (d) MCCB 63 A FP breaking capacity-25 kA-02 No (e) Digital ammeter of size 96mm x 96mm - 01 No. (f) Digital voltmeter of size 96mm x 96mm - 01 No. (g) R-Y-B phase indicator lamps LED type - 1 set. (h) Suitable rated CTS

Earthing complete with GI earth plate electrode 60cmX60cmX6mm thick burried directly in ground (earth pit not less than 2.25m deep below the ground level) with top edge of the plate not less than 1.5m below normal ground level connected to GI strip 32X6mm as earthing lead by means of bolts, nuts, checknuts and washers of GI or steel all as shown in electrical plate No 5 including charcoal dust common salt and 20mm GI medium grade watering pipe, 50mm GI medium grade pipe for protection of GI strip upto test point, including funnel with wire mesh, including providing masonary encloser and watering pipe of dia 25 mm including wiremesh steel funnel complete as specified and directed.Earth strip 7.5 mtr included

M&L for testing, laying of XLPE PVC sheathed armored cable 70 sqmm 3.5 core complete all as specified and as directed .

B/R Portion

Surface excavation n.exc (not exceeding) 30cm deep and averaging 15 cm, deep and getting out in hard/dense soil complete all as specified and directed.

M & L Hardcore using broken stone boulders not exceeding 63mm deposited spread and levelled in layers not exceeding 15 cm thick watered and rammed to a true surfaces complete all as specified & directed.

M&L 75 mm PCC 1:4:8 type D-2 as in sub base complete all as specified and directred

Supply only Fine aggregate (sand) for sand cousioning

M & L Machine pressed precast concrete interlocking pavour block with grey cement and pigment any shape and size confirming to IS 15658-2006 of 60mm thickness M-35 grade with glossy finish colour shade complete all as specified and directed by Engr-in-Charge.(Sand will be measured & paid separately )

M&L 15mm thick plastering on concrete surface in CM 1:4 finished even and smooth without using extra cement complete all as specified and directed.

M&L Preparation of newly plastered or unplastered surfaces on wall surfaces and applying two coats of cement base paint complete all as specified.

M&L PCC 1:2:4 type B-1(Using 20mm graded crushed stone agg) in lintels upto 1.5 m clear span, cills, steps; seismic and other similar bands, plinth courses, string courses, lacing courses, parapets and railings upto 60 cm in height, copings, kneelers, apex stones, bed plates, kerbs , water troughs and the like including weathering, slightly rounded for chamfered angles and throating, as directed.

Removing excavated material n.ex 50m and depositing where directed at a level n.exc 1.5 m above the starting point complete

M/s Gh Qadir and Sons (BID ID -3304721)

M/S BASHIR AHMAD AND SONS (BID ID -3307851)

CHINAR CONSTRUCTION TRADERS (BID ID -3313848)

M/S MIR SAJAD ENTERPRISES (BID ID -3310381)

M/S LEO TRADERS (BID ID -3308190)

FG CONSTRUCTION (BID ID -3307145)