CWE/AF AMB/AMB-49/2021-22 SPECIAL REPAIR / REPLACEMENT OF HT EQUIPMENTS AGAINST BER AT AF STN AMBALA UNDER GE (AF) AMBALA

Amount

Taking out / dismantling of old unserviceable HT TEE / VL isolating oil immersed switch HT / Switch fuse oil emersed HT / Ring main HT of any ampere rating from the existing sub station buildings and deposited to MES store yard of GE complete all as specified and directed.

Supply, fixing, testing, commissioning and desiging of non extensible SF 6 gas insulated 6 way 11 KV ring main unit outdoor type with gas tank IP 67 protection & outdoor enclosure – IP 54 Protection with 1 No 11 KV vacuum circuit breaker for incoming and 05 Nos VCB for outgoing shall be nominal voltage 12 KV 630 Amp, 21 KA/3s. The complete switch gear shall be tested for internal arc of 21 KA FLR for 1 Second. HT Compartment - (Circuit Breaker) -I/C feeder & O/G feeder (i) This function - unit consists of a vacuum circuit breaker in combination with a three position switch. The three position switch fulfills the operation of the disconnector function and the earthing function. The circuit breaker unit is equipped with an over current time released for the protection.

Supply, fixing, testing, commissioning and desiging of non extensible SF 6 gas insulated 5 way 11 KV ring main unit outdoor type with gas tank IP 67 protection & outdoor enclosure – IP 54 Protection with 1 No 11 KV vacuum circuit breaker for incoming and 04 Nos VCB for outgoing shall be nominal voltage 12 KV 630 Amp, 21 KA/3s. The complete switch gear shall be tested for internal arc of 21 KA FLR for 1 Second. HT Compartment - (Circuit Breaker) -I/C feeder & O/G feeder (i) This function - unit consists of a vacuum circuit breaker in combination with a three position switch. The three position switch fulfills the operation of the disconnector function and the earthing function. The circuit breaker unit is equipped with an over current time released for the protection.

Supply, fixing, testing, commissioning and desiging of non extensible SF 6 gas insulated 4 way 11 KV ring main unit outdoor type with gas tank IP 67 protection & outdoor enclosure – IP 54 Protection with 1 No 11 KV vacuum circuit breaker for incoming and 03 Nos VCB for outgoing shall be nominal voltage 12 KV 630 Amp, 21 KA/3s. The complete switch gear shall be tested for internal arc of 21 KA FLR for 1 Second. HT Compartment - (Circuit Breaker) -I/C feeder & O/G feeder (i) This function - unit consists of a vacuum circuit breaker in combination with a three position switch. The three position switch fulfills the operation of the disconnector function and the earthing function. The circuit breaker unit is equipped with an over current time released for the protection.

Notes for item No 2.00 to 4.00 : - (i) The rate for making foundation for RMU of size as per recommendation by manufacturer and the cost of excavation, brick work, concrete etc shall be included in the quoted rate. The drawing for foundation as per manufacturer design & shall be approved by GE. (ii) The drawings in respect of RMU shall be approved by Accepting Officer through GE and as & when requested by contractor before placing order to manufacturer. (iii) RMU shall be tested by representative of Accepting Officer at factory premises before dispatch as & when requested by contractor. (iv) The testing and commissing of the RMU shall be carried out in presence of Senior Electrical Inspector as & when requested by contractor.

Supply, installation, commissioning and testing of 160 KVA capacity transformer, step down, 11 KV (primary side)/433 volt (secondary side) as per IS-1180-2014 (Level-III), copper wound, suitable for AC, three phase, 4 wire, 50 Hz system, outdoor type, floor mounted, oil immersed having Vector group DYN-11, no load voltage ratio- 11/0.433 KV, temperature rise in oil 45 degree centrigrade & in winding 55 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 and 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) Any other fittings as recommended by the manufacturer of efficient functioning of the transformer. Notes: - (i) The cost of platform/foundation as per manufacturer’s recommendation shall be included in the quoted rates and the drawing of the foundation shall be got approved by GE before construction. (ii) 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. (iii) Transformer manufacturer shall be in possession of licence from bureau of Indian standard.

(iv) The fitting & accessories of the transformer shall be conforming to is 3639 : 1996. (v) The transformer shall be tested as per IS for all routine 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. (vi) The Transformer shall be tested by SEI/EI/AEI beore commissing as & when requested by contractor. (vii) All necessary arrangements i.e. Co-ordination with the manufacturer & testing officer, arranging equipments and material to facilitate testing at the manufacture’s premises etc. shall be borne by the contractor. (viii) 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.

S&F in replacement cable jointing kit for 11 KV earthed grade cable, indoor type, end termination heat shrinkable type joints with jointing material and accessories for 3 core XLPE armoured aluminium conductor cable of size 120 Sqmm including cutting complete all as specified and as directed.

S&F in replacement cable jointing kit for 11 KV earthed grade cable, indoor type, end termination heat shrinkable type joints with jointing material and accessories for 3 core XLPE armoured aluminium conductor cable of size 95 Sqmm including cutting complete all as specified and as directed.

S&F in replacement cable jointing kit for 11 KV earthed grade cable, indoor type, end termination heat shrinkable type joints with jointing material and accessories for 3 core XLPE armoured aluminium conductor cable of size 240 Sqmm including cutting complete all as specified and as directed.

S&F in replacement cable jointing kit for 11 KV earthed grade cable, outdoor type, end termination heat shrinkable type joints with jointing material and accessories for 3 core XLPE armoured aluminium conductor cable of size 120 Sqmm including cutting complete all as specified and as directed.

Supplying, laying, jointing, testing and commissioning in replacement HT XLPE cable heavy duty), 11000 volts (earthed), 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 amendment, size cross sectional area 95 Sqmm, 3 core, laid in trenches /pipes /ducts /along poles/ walls/ equipment etc complete all as specified and directed.

Supply, laying, jointing, testing and commissioning in replacement HT XLPE cable(heavy duty), 11000 volts (earthed), 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 amendment, size cross sectional area 120 Sqmm, 3 core, laid in trenches /pipes /ducts /along poles/ walls/ equipment etc complete all as specified and directed.

Supply, laying, jointing, testing and commissioning in replacement HT XLPE cable(heavy duty), 11000 volts (earthed), 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 amendment, size cross sectional area 240 Sqmm, 3 core, laid in trenches /pipes /ducts /along poles/ walls/ equipment etc complete all as specified and directed. NOTES for item No. 10.00 to 12.00 : (i) Cable shall be of manufacturing date not earlier than Sep 2021. 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, protection pipes, end termination joints & protection covers shall be measured and paid separately. (iii) No straight through joint shall be permitted in less than single drum length. (iv) The contractor shall produce original purchase vouchers duly machine numbered alongwith excise duty gate pass of factory for verification and record. (v) Cable shall be tested in the presence of rep of Accepting Officer at the factory premises and in the presence of GE or rep of GE after laying in the trenches & before returning filling in the trenches as & when requested by contractor.

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 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 as directed.

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

Supply and laying in replacement un-reinforced precast concrete cable cover , Class HVP type-1 ,peak size 300mmx180mmx40mm, laid flat for protection of cable , adjacent to each other, perpendicular to central axis of cable complete all as specified and as directed.

M&L in replacement GI pipe 80 mm bore , light grade as in trenches, under road,under floor, fixed to wall with fixing arrangement with suitable size of MS clamps made from 40x3 mm size flat iron including nuts,bolts & washers or along the pole with fixing arrangement etc for cable protection complete all as specified and directed .

M&L in replacement earthing complete with galvanized steel earth plate 60 cm X 60 cm X 6 mm thick buried vertically in ground to depth not less than 2.25 metres below ground level, with top edge of earth plate not less than 1.5 m below ground level, connected to GI earth lead strip 32x6 mm upto 7.5 mtrs long by means of bolts, nuts, check nuts and washers of galvanized iron and connection to earthing test point & earth dolly including watering pipe GI 20 mm bore, light grade including protection pipe GI light grade 40mm bore , wire mesh, funnel,lugs, salt, charcoal dust, excavation & earthwork in soft/losse soil and refilling pit chamber with PCC 1:2:4 type B1 using 20 mm graded mechnically crushed stone aggregates , RCC 1:2:4 type B-1 using 20 mm graded mechnically crushed stone aggregates pit cover slab 50 mm thick reinforced with 8 mm dia TMT bars @ 15 cm c/c both ways including necessary form work all as shown in electrical plate No 3 of SSR part-I (2009), including testing on completion on site complete all as specified and as directed. Notes :- (i) Any variation in length of earth lead and protection pipe of earth lead shall be adjusted through DO. (ii) On testing if the earth resistance is not obtained, earthing will be generated at No extra cost ,till the desired earth resistance is obtained. (iii) The chamber shall be constructed atleast 1.5 mtr away from the earth electrode.

Supply, installation & fixing in replacement factory made, HT feeder pillar box, cubical, water proof, vermin proof, powder coated painted of size 1200x1200x1200mm, out door type with front and rear opening with locking arrangement, fabricated out of 3.15mm thick MS sheet supported on 50x50x6mm thick angle iron frame and grouted in PCC 1:3:6, type C, of block and 50 cm above ground level, fitted with and including HT 11 KV base type insulations on and including fitting with suitable size of MC and HT 11 KV aluminium bus bars three phase system hyaving provn for cable gland for incoming 01 No and 01 out going cables complete all as specified and as directed. Note:- (i) Necessary earthwork and PCC included in quoted rates. (ii) Feeder pillar shall be approved by GE

For Credit Schedule refer tender documents. The amount of credit schedule shall be deducted in total quoted amount of BOQ to arrive contract sum.

Raman Electric Trading Co

R D Bansal

GEPS PROJECTS

Ridhi engineers and builders

Ess Ess Engineers

M/S BALWINDER SINGH