CWE/AF AMB/SAR-17/2022-23 PROVN OF STANDBY TROLLY MOUNTED TRANSFORMER, DG SET AND FLOOD LIGHT AT AF STATION SARSAWA UNDER GE (AF) SARSAWA

Amount

Supply, installation, commissioning and testing of 200 KVA transformer, step down, 11 KV (primary side)/433 volt (secondary side) as per IS-1180:2014(Part-I) amended upto date, energy efficient Level-II, copper wound, suitable for AC, three phase, 4 wire, 50 Hz system, outdoor type, oil immersed having Vector group DYN-11, no load voltage ratio- 11/0.433 KV, temperature rise in oil 35 degree centrigrade & in winding 40 degree centigrade, Oil Natural Air Natural (ONAN) cooled with and including first filling of transformer oil, delta connection on HT side, star connection on LT side, manually, operated, off-load tap changer on HT side to vary secondary voltage to + 7.5% & -7.5% in three steps of 2.5% each, cable end box at HT & LT side, LT side cable box shall also be fitted with suitable size of cable glands for making connections with all the accessories as per clause 19.14.1.2 of SSR Part-I and the under mentioned fittings complete all as specified & directed:- (a) Rating plate and terminal marking plate. (b) Two earthing terminal for body earthing and two additional for neutral brought out on a bushing.

(c) Lifting lugs. (d) Drain valve with plug or cover plate. (e) Dehydrating breather. (f) Oil level indicator with minimum and maximum marking. (g) Cooling radiator. (h) Thermometer pocket. (j) Conservator. (k) Oil filling hole with cover. (l) Thermometer 100mm dial/stem type with metal guard having maximum temperature indication with resetting. (m) Silica gel breather duly filled with silica Gel. (n) Plain breathing device which would not permit ingress of rain water & incsects. (o) High voltage / low voltage copper stud bushing with cable end box. (p) Control cable for connection of buchholtz relay including buchholtz relay as per manufacturer's recommendation. (q) Any other fittings as recommended by the manufacturer of efficient functioning of the transformer.

Notes for BOQ item No. 1.00:- (i) The transformer shall be of latest star rated and energy conservation (Energy conservation Binary Corps) for which necessary test certificate of manufacturer shall be produced by the contractor. (ii) Transformer manufacturer shall be in possession of licence from bureau of Indian standard. (iii) The fitting & accessories of the transformer shall be conforming to is 3639 : 1996. (iv) The transformer shall be tested as per IS for all type tests in the factory premises in the presence of rep of Accepting Officer on the receipt of request from the contractor in addition to routine tests . The transformer shall be tested for 10% over load at factory premises for minimum 01 hour after full load cycle of 08 hours. (v) The Transformer shall be tested by SEI/EI/AEI beore completion. (vi) All necessary arrangements i.e. co-ordination with the manufacturer & testing officer, arranging equipments and material to facilitate testing at the manufacturer’s premises etc. shall be borne by the contractor. (vii) Next immediate Higher capacity of transformer shall be provided without any price adjustment if the capacity specified in BOQ/Schedule ‘A’ is not available in market. Similarly in case if transformer for specified capacity are aviailbale with latest specification in market, the same shall be provided without any price adjustment.

Supply, installation, testing and commissioning of Diesel engine driven generating set 415volt, 3 phase, 4 wire as per BS 5514/IS-10002 complete with standard control panel, of capacity continuous rating 200 KVA/160 KW at NTP conditions with acoustic enclosure and canopy cover suitable for outdoor installation considering all derating factors and comprising of the following :- (a) ALTERNATOR : Self regulated with brushless self excitation 200KVA, 415volt, 3 phase, 4 wire, 50 Hertz, 0.8 power factor,1500 RPM, with voltage variation plus or minus 2.5% of rated voltage from no-load to full-load, foot mounted, screen protected, drip proof type with class 'F' insulation, closed coupled single bearing alternator, with necessary controls as recommended by the manufacturers, conforming to IS-2613/IS-4722, capable of supplying unbalanced load. (b) Prime mover direct coupled, water cooled diesel engine of capacity 200 KVA and matching BHP (as per manufacturer’s standard) after consideration of derating factor for driving alternator to produce 200 KVA energy including fuel tank with 1st fill of oil, fuel pipes and valves, air cleaner with filters, low noise silencer, cooling and lubricant system and necessary indicating/recording instruments for various parameters for safe operation of DG set. (c) Anti-vibration pads as recommended by the manufacturer’s.

(j) Accoustic enclosure : Trolley mounted totally enclosed acoustic enclosure of suitable size as per CPCB norms duly epoxy painted, according to size of generator. It should be made out of min 2mm thick CRCA sheet gasket of door should be of high quality one door shall have glass window for control panel. Sound level of acoustic enclosure shall not more than 75 decibal measured at 1.00mtr away from DG set, canopy panel and doors shall have inside of fire retardant foam conforming to IS-81283/BS-4735. Lockable fuel filling arrangement to be provided externally to the canopy. Note : The engine of DG set suitable be derated to suit the climate condition of so as to give desired output including 10% over load for continuous one hour operation. (k) Inbuilt diesel tank as per manufacturer's recommendation should be at bottom of DG set. (l) Other fittings: (i) Battery charger: Trickle Battery charger for one battery consisting of electric circuit, consisting of triodes, rectifiers, capacitors, transformer, Ampmeter, indicator and Off/ON switch including power cable of size 1.5sqmm 3 core 230 volts with 3 pin top plug complete. (ii) Documents : Three sets of following documents :- Maintenance and operation manuals for engine and alternator, spare parts catalogue, warranty/test certificates, schematic diagrams of control panels.

(iii) List of tools and two years normal maintenance spares as per manufacturers recommended lists, duly priced, item wise. Notes for BOQ item 2.00 : (i) DG set shall be tested by the contractor in presence of GE & representative of Accepting Officer and the cost thereof deemed to be included in quoted rates. Testing equipment will be arranged by the contractor at his own cost. (ii) Fuel/oil required for load test shall be arranged by the contractor and cost thereof is deemed to be included in quoted rate.

Supply, laying, jointing, testing and commissioning LT XLPE insulated, armoured, heavy duty electric cable with stranded aluminium conductor, 1100 volts grade, cross-sectional area 185 sqmm 3.5 core conforming to IS- 7098 (Part I) 1988 (with upto date amendments) as in trenches or along the wall/pole through pipe etc, complete all as specified and directed. Note:- Excavation & earth work, sand cushioning, protection pipes, end termination joints & protection covers shall be measured and paid separately.

Supply, laying, jointing, testing and commissioning HT XLPE cable (heavy duty), 11000 volts (earthed), cross sectional area 95 Sqmm, 3 core, insulated, screened, sound compacted aluminium conductor, screening with extruded semi conducting layers, insulation screening with copper tape covers laid up with PVC (ST-2), extruded inner sheathed GI strip armoured PVC (ST-2) out sheathed, ISI marked with IS-7098 Part II with upto date amendments, laid in trenches /pipes /ducts /along poles/ walls/ equipment etc complete all as specified & directed. Notes: (i) Cable shall be of manufacturing date not earlier than Mar 2022. All the cable shall be embossed with year of manufacturing, meterage at every metre, in addition to its own standard markings as per IS i.e. Size, voltage etc. (ii) Excavation & earth work, sand cushioning, end termination joints, protection pipes & protection covers shall be measured and paid separately. (iv) Cable shall be tested by the GE or represntative of GE after laying in the trenches & before returning filling in the trenches.

S&F cable jointing kit for 11000 volt earthed grade, outdoor, end termination heat shrinkable type joints with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50sqmm to 95sqmm complete all as specified & directed.

S&F 150 watt LED Flood Light fitting, cast aluminium alloy housing, IP 66 protection, input voltage range 140 volts to 270 volts, auto cut off at voltage exceeding 300 volts, auto power on after cut off with time delay of less than 60 seconds, power factor more than 0.95, surge protection 4 KV internal and 10 KV external, driver current not exceeding 700 mA, driver electrical efficiency not less than 85% at constant current delivery, with secondary optic lence for energy LED, having name of manufacturer and logo embossed on housing of each light fitting complete all as specified & directed.

Excavation in trenches not exceeding 1.5mtr wide and not exceeding 1.5mtr in depth for foundation etc or for walls, shafts, manholes not exceeding 10 sqm on plan or for laying pipes/cables etc and getting out, in soft/loose soil complete all as specified & directed.

M&L Sand cushioning to cable with a layer of dry fine sand 8 cm deep before laying the cable and 15 cm deep after laying the cable (punned down to 18 cm depth after laying and stretching of cable ) complete all as specified & directed.

Supply and laying old size, common burnt clay, sub class 'B' bricks, designation 75, laid flat & dry for protection of cable , adjacent to each other, perpendicular to central axis of cable complete all as specified & directed.

Removal of excavated soil to a distance not exceeding 50 mtr & depositing where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified and directed.

Returning filling in including spreading leveling watering and well ramming in layers not exceeding 25 cm thick each in soft/loose soil complete all as specified & directed.

M&L plain cement concrete (PCC) 1:3:6, type C-2, using 40 mm graded mechanically crushed stone aggregates as in foundations, filling and mass concrete etc complete all as specified & directed.

M&L plain cement concrete (PCC) 1:2:4, type B-1, using 20 mm graded mechanically crushed stone aggregates as in coping to pole/stay/panel etc including necessary formwork to exposed surface finished even & smooth complete all as specified & directed.

Supply, laying, jointing, testing and commissioning LT XLPE insulated, armoured, heavy duty electric cable with aluminium conductor, 1100 volts grade, cross-sectional area 6 sqmm 2 core conforming to IS- 7098 (Part I) 1988 (with upto date amendments) as in trenches or along the wall/pole through pipe etc, complete all as specified and directed. Note:- Excavation & earth work, sand cushioning, protection pipes, end termination joints & protection covers shall be measured and paid separately.

S&F PVC insulated, FR PVC round sheathed, stranded copper conductor of size 1.5 sqmm, 3 core, 1100 Volts grade as per IS 694 drawn through in & including 20mm bore non mettalic PVC conduit(medium grade) complete all as specfied & direcetd.

S&F Non metallic PVC Junction box, size not less than 18cm x 10cm x 8cm hinged with lockable arrangement including aluminium busbar SPN, capacity 40Amp with one No. MCB 2 Amp SP with provision of tapping incoming and outgoing cable connection with gland box of suitable size and fixing on pole/grouting in PCC muff complete all as specified & directed. Note: Excavation & PCC work (if any) included in quoted rates.

S&F timer switch in suitable sheet metal metal encloure for security light made out of 1.6mm thick MS sheet duly powder coated with locking arrangement fixed to wall/pole by means of clamp, nut, bolt and washers etc including for comprising the following items complete all as specified & directed :- (a) Adjustable thermal & fixed magnetic setting MCCB 415 volt, 63 Amp, 25 KA, 4 pole - 01 No. (b) MCB 'C' curve, Single pole & neutral 5 - 30 Amp - 01 No. (c) Power contactor ML-3 3 pole - 01 No. (d) Timer switch analog type, 16 Amp, 250 volt, 50/60Hertz, 56 programme, 1 channel - 01 No. (e) By pass arrangement for testing/repairing the lights

S&F busbar chamber having one 400 Amp, 4 pole, 415 volt, 50KA MCCB (Adjustable thermal & fixed magnetic setting) and four numbers aluminium busbar mounted on insulator of capacity 400 Amp duly enclosed in sheet metal enclosure suitable for outdoor installation with canopy mounted on trolly complete all specified & directed.

M&L for fabrication of trolley, totally enclosed suitable for carrying the transformer of capacity 200 KVA outdoor type, including mounting of Transformer inside trolley with proper fixing arrangement complete all specified & directed. The trolley having following technical specifications:- (a) Dimension of trolley:- 1900mm x1900mm (b) Height:- 1500mm (+/- 10mm) (c) Chasis (base frame) :- MS Channel 75mm x 38mm & 100mm x 50mm (d) Platform floor:- MS plate Approx 10 mm thick (e) Trolley side (cage frame) MS 50mm x 50mm Square pipe 2 mm thick (+/-2mm) & covered by welded mesh of size 75mm x 30mm (f) Front, Rear & side door :- (03 doors) fabricated with MS angle iron 35mm x 35mm x 5mm covered with welded mesh with heavy hinge and locking arrangement. (g) Support for DO fuse & insulator :- MS channel 75mm x 38mm (+/- 2mm), height 1720mm & distance phase to phase 500mm distance. (h) Axel:- 2 Axel size 50mm Square and length 1500mm front without brake drum, rear with brake drum 4 Nos taper bearing with housing for mounting wheels. (j) Rims: Rim 04 Nos. (k) Tyre and tubes :- 04 Nos, inflatable of size 7.5x16

(l) Suspension :- Leaf spring suspension provided on four wheels with hanger and U bolts suitable for 2.5 Tons gross weight. (m) Turn table :- MS channel 75mm x 38mm, MS plate suitable for turn center pin 30mm round bar Ring flat iron 40mm x 6mm. (n) Draw Bar:- MS channel 75mm x 38mm (+/-2mm) (o)Toeing Hook :- MS Round 30mm (p) Loading capacity:- Suitable to carry 200KVA Transformer . (q) Screw jack - 04 Nos. (r) Paint:- Two coat of Grey Enamel paint over & including one coat of red oxide primer. Shade of paint shall be approved by Engineer-in-charge.

M&L for fabrication of trolley, suitable for carrying the DG set of capacity 200 KVA outdoor type, including mounting of DG set inside trolley with proper fixing arrangement complete all specified & directed. The trolley having following technical specifications:- (a) Dimension of plattform:-4250mm x 1350mm (+/- 60mm) (b) Height:- 1500mm (+/- 10mm) (c) Main Chasis Channel (base frame) :- MS Channel 125mm x 65mm (d) Leaf spring 04 Nos. (e) Axel 02 Nos. (f) Tyre assembly 04 Nos- 7.50 x 16 (g) Parking Brake with hand lever (h) Screw Jack 04 Nos. (j) Turn Table system (k) Draw Bar Triangular Detachable Tyre and tubes :- 04 in Nos. inflatable of size 600x16 (l) MS Chanel (m) Towing Hook spring loaded 50mm Forged steel (n) Light Reflector 04 Nos. (02 Nos Front and 02 Nos Rear side) (o )Draw Bar Bolts. (p) Loading capacity:- Suitable to carry 200KVA DG set .

(q) Paint:- Two coat of Grey Enamel paint over & including one coat of red oxide primer. Shade of paint shall be approved by Engineer-in-charge. Notes for BOQ item No. 19.00 & 20.00: (i)Before fabrication of trolley, the drawing of trolley shall be prepared by contractor in consultation with Engineer-in -charge and got approved by GE. (ii) Drawing must contains all dimensions, size & grade of all steel members, make & size of Rim, tyre & tube, painting shade with make of paint and all other technical details. (iii) The trolley shall be fabricated from structural steel confirming to Fe-410-W grade steel and as per approved drawing. (iv) Two sets of approved drawing shall be submitted by contractor to GE office. (v) Any minor constructional or Structural details or steel member required to complete the fabrication of trolley shall be provided & executed by contractor without any extra cost to department. (vi) All above aspects deemed to be included in quoted rates.

ISHWAR ELECTRICALS AND PROCESS SERVICES

Raman Electric Trading Co

A K BANSAL AND CO