SPL REPAIR OF BER TRANSFORMER WITH RMU AT SUB STN NO 8A 164 MH AND HT CABLE ON SUB STN NO 7 AND REPLACEMENT OF HT ELECT EQPT INCL HT CABLE AND ALLIED WORK ON SUB STN NO 11 AT 20 MTN DOU AT BINNAGURI MIL STN UNDER GE NORTH BINNAGURI

Amount

Schedule 'A'

Supplying , installation, testing and commissioning of RMU 3 way HT 11 KV indoor type,21 KA for 3 sec, rated voltage-12KV, operation voltage-11 KV, rated lightning withstand voltage - 75 KV, rated frequency - 50Hz, 630 amp copper busbar SF6 insulated non extensible compact switch gear consisting of two nos fixed motorised load break switch (LBS) and one nos fixed motorised Vacuum circuit breaker (VCB) in SF-6 gas insulated, welded, stainless steel enclosed with minimum 2.5 mm thickness totally enclosed Ring Main Unit IP-67 protection with self powered microprocessor based complete numerical over current & earth fault relay comprising of the following specification/equipment :- (a) The circuit breaker and earthing switch shall be lockable in the open or closed position by suitable number of padlocks of suitable size. (b) Inter panel barrier to prevent arc propagation from one panel/compartment to other. (c) Earthing switch rated for full making capacity with provision for safe & reliable position indicator. (d) Isolating plug. (e) Vacuum circuit breaker unit insulated in SF6 media shall comprising the following : (i) Assembly of VCB interrupter complete with epoxy support insulator and self alligning isolating contacts with rating 11KV 630 amps ,21 KA for 3sec , 50 Hz.. (ii) Manual charged and manual operated independent closing / tripping, trip free operating mechanism and breaker closed/open, spring charge/discharge indication. (iii) Mechanical operation counter-02No. (iv) One bus bar chamber including a set of 3 phase 630 amps copper bus bar. (v) Strip heater 230 volts AC single phase 80 watt. (vi) Current transformer chamber comprising of 3 nos single phase resin cst CT's of 100-50/5 and accuracy class 0.5 for metering and class 5P10 for protection in all outgoing VCB feeder - set of 3. (e) One no potential transformer(PT) three phase, dry type ( resin cast) draw out type 11kv/110 volts, 100VA burden, accuracy class 0.5 with HT & LT HRC fuses for primary and secondary complete as per IS-3156- 01 no. (f) SCADA Self powered solid state numerical O/C & E/F relay for complete protection of HT,11KV,three phase feeder having facility to record fault current with date & time with suitable communication port as approved by GE- 01 nos (g) Arc flash supervision of circuit breaker, cable and busbar compartment. (h) Digital SCADA compatible intelligent panel meter indicating line/phase current, line/phase voltage, power factor, KVAR,KVA, frequency etc with accuracy class 0.5 for all outgoing feeder of RMU-03 Nos. (j) One set of indication lamp(LED) type for ON/OFF indication in all LBS/VCB. (k) One set of indication lamp (LED) type for spring charging and three nos indication lamp for RYB phase indication in all LBS/VCB. NOTE:- (i) All foundation works for RMU as per manufacturer recommendation for the installation shall be deemed to be included in the quoted rates incl Excavation work & PCC Work. (ii) Contractor shall submit detailed drawings with specification of the RMU and get necessary approval before placing final order to the manufacturer. (iii) All outgoing / incoming existing HT cable of any size drawing / digging out cable from loops in trenches inclusive of necessary excavation and earthwork as required and relaying the cables shall be deemed to be included in the quoted rates. (iv) Any item missed out above but is technically required for safe and proper operation of equipment shall be deemed to be included in the quoted rate. (v) The material will be purchased only through manufacturing company.

Supply, install, testing & commissioning, step down Transformer, Outdoor type, mounted on iron wheels HT 11 KV 3 Phase, LT 433 Volts, 3 Phase, 4 Wire, 50 Hz, Delta/Star connected, vector group DYN-11 double copper wound, ONAN, manual type off load tap changing facility on HT side to vary secondary voltage from minus 10% to plus 5% in steps of 2.5%, continuous rating of capacity 200 KVA. The Transformer shall be complete with all standard fittings and accessories, gauges, first fill of transformer oil etc, and conforming to IS-1180 complete all as specified and directed. (Note :- (i) Foundation for transformer is included in the above rates. (ii) Rates are based on reputed makes. (a) 01 No cable end box on HT side consisting of 04 Nos porcelain bushing with bushing brass rods, nuts, washers & cable glands suitable for reception of HT 11000 V grade XLPE insulated heavy duty cables incl glands complete. (b) 01 No cable end box on LT side consisting of 03 Nos porcelain bushing with bushing brass rods, nuts, washers & cable glands suitable for reception of LT 1100 V grade XLPE insulated heavy duty cables incl glands complete. (c) Oil conservator with filter type drain valve & oil level gauge. (d) Explosion vent with double diaphragm & sight glass. (e) Thermometer pocket. (f) Two earthing terminal on tank body to facilitate fixing of 32 x 6 mm GI strip. (g) 01 No thermometer dial type, vapour pressure type having range 0 to 120'C with max temperature indicator, re-setting device & marked max temp reading point. (h) Rating plate with terminal marking plate. (j) Oil level gauge. (k) Oil drain filter valve. (l) oil filling port on top cover with plug. (m) Air release valve / plug. (n) 04 Nos plain solid cast steel detachable rollers. (o) First fill of transformer oil confirming to relevant IS & tested upto 60 KV dielectric strength. (p) Inspection cover. (q) Lifting lugs & jack lifting pad & support. (r) Silica gel breather without / with connecting pipes, first fill of dehydrating agent. (s) Cover lifting eyes. (t) Oil temperature indicator of approved range, including shut off valve between conservator & main tank. (u) Additional / Extra bushing for neutral outside of LV side.

Supply, laying, jointing & testing in trenches or passing through pipe, 11000 volts grade, XLPE insulated PVC bedded, galvanized steel strip or wire armoured HT electric power UG cables, heavy duty with stranded aluminium conductor of cross sectional area of size 3 core 120 sq mm with and including all fixing & connecting accessories such as Alluminium cable lugs, cable gland, nut, bolts, washer etc complete all as specified and as directed. (NOTE: Earthwork & Excavation, GI pipe, bricks for protection etc shall be measured and paid separately under relevant items of this schedule 'A').

Supply, laying, jointing & testing in trenches or passing through pipe, 11000 volts grade, XLPE insulated PVC bedded, galvanized steel strip or wire armoured HT electric power UG cables, heavy duty with stranded aluminium conductor of cross sectional area of size 1 core 120 sq mm with and including all fixing & connecting accessories such as Alluminium cable lugs, cable gland, nut, bolts, washer etc complete all as specified and as directed. (NOTE: Earthwork & Excavation, GI pipe, bricks for protection etc shall be measured and paid separately under relevant items of this schedule 'A').

Excavation in trenches in soft/loose soil not exc. 1.5 metre wide and not exc. 1.5 metre in depth and getting out for taking up / laying under ground electric cable complete all as specified and as directed.

Returning, filling in, including spreading leveling watering and well ramming in layers not exceeding 25 cms in depth complete all as specified and as directed.

Removing surplus soil to a distance not exceeding 50 mtr and depositing where directed at a level not exc 1.5 mtr above the starting point complete all as specified and as directed.

Supply and lay dry river sand filling for under ground cable protection with a layer of 8cm deep before laying and 15cm covering above the top edge of cable after laying complete all as specified and as directed.

Supply and laying un-reinforced precast concrete cable cover, class HV, type-I flat of size 300x180x40mm for protection of HT UG cable. complete all as specified and as directed

M & L for horizontal boring across the existing road without disturbing the road surface for inserting GI pipe complete all as specified and as directed. Note :- (i) Removal of surplus soil shall be deemed to be include in the unit Rate. (ii) GI pipe will be measured and paid separately under relevant item of Sch 'A'.

M&L for 80 mm bore steel tubing light grade ISI marked for protection of cable including necessary joints complete all as specified and as directed.

Dismantling and taking out four pole structure/ HT OCB/Transformer/ panel consisting of any size and description from sub stations and deposit to MES store yard complete all as specified and as directed. Note: Transportation charges shall be deemed to be include in this unit rate.

Supply, fixing, jointing and testing cable End jointing kit for 11 KV (earthed) grade cable, for indoor termination cold shrinkable type joint complete with jointing material and accessories suitable for XLPE insulated armoured aluminium conductor cable of size 3 Core 120 sqmm complete all as specified and as directed

Supply & fixing in repairs for 32 x 6 mm galvanised iron strip, earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or burried in ground or fixed to poles or roof with saddle and screw current complete all as specified and directed.

Supply and fixing Copper strip of size 20x3.15 mm for earth continuity conductor fixed on PCC block complete all as specified as directed complete all as specified and as directed.

Supply and installation (above ground) including testing HT joint box 2 way outdoor type of size 1500x1000x900mm (overall) made out 3.15mm thick CRCA sheet with support of angle iron frame of size 40x40x6mm with KIOSK BOX and comprising of 03 Nos HT procelain bushing and copper round bus bar 12mm dia rigidly mounted on bakelite sheet 12mm thick to support insulators of suitable size and shape including providing necessary electric connection and applied two coats of synthetic enamel paint over a coat of red oxide primer to steel surfaces (internally & externally) including PCC foundation base of size 1700mm x 400mm x 1400mm height (700mm above GL & 500mm below GL) with PCC 1:3:6 type C1 using 20mm graded aggregate complete including necessary excavation and earth work for foundation and necessary electric connection complete and including dismantling of unserviceable joint box complete all as specified and as directed by Engr-in-Charge.

Supply and installation (above ground) including testing HT joint box 3 way outdoor type of size 1700 x 1200 x 1000 mm (overall) made out of 3.15 mm thick CRCA sheet with support of angle iron frame of size 40 x 40 x 6 mm with KIOSK BOX and comprising of 06 Nos HT porcelain bushing and copper round bus bar 12 mm dia rigidly mounted on bakelite sheet 12 mm thick to support insulators of suitable size and shape including providing necessary electric connection and applied two coats of synthetic enamel paint over a coat of red oxide primer to steel surfaces (internally & externally) including PCC foundation base of size 1900 mm x 400 mm x 1400 mm height (700 mm above GL & 500 mm below GL) with PCC 1:3:6 type C1 usisng 20 mm graded aggregate complete including necessary excavation and earth work for foundation and necessary electric connection complete and including dismantling of unserviceable joint box complete all as specified and as directed by Engineer-in-Charge.

M&L for Earthing complete with Copper earth plate electrode 600x600x3.15 mm thick burried directly in ground (earth pit not less than 2.25 mtr deep below the ground level) with top edge of the plate not less than 1.5 mtrs below normal ground level, connected to copper earth strip 20x3 mm dia by means of bolts, nuts, check nuts and washers of brass/copper all as shown in electrical plate No 3 of SSR part-I 2009 connected to lightening conductor all as specified and testing on completion including. Necessary excavation, earthwork, PCC works and CI earth pit cover with watering pipe 20mm dia GI pipe medium grade, funnel with wire mesh and lugs and GI pipe 40 mm dia of light grade, for protection of earth strip complete all as specified and directed. Note: Excavation/PCC/Earth work/Charcoal/ Salt shall be deemed to be include in this unit rate.

M&L for Earthing complete with galvanised steel earth plate electrode 600x600x6.0 mm thick burried directly in ground (earth pit not less than 2.25 mtr deep below the ground level) with top edge of the plate not less than 1.5 mtrs below normal ground level, connected to galvanised earth strip 32 x 6 mm by means of bolts, nuts, check nuts and washers of galvanised iron or of steel all as shown in electrical plate No 3 of SSR part-I 2009 connected to pole/LT Panel all as specified and testing on completion including. Necessary excavation, earthwork, PCC works and CI earth pit cover with watering pipe 20mm dia GI pipe medium grade, funnel with wire mesh and lugs and GI pipe 40 mm dia of light grade, for protection of earth strip complete all as specified and directed. Note: Excavation/PCC/Earth work/Charcoal/ Salt shall be deemed to be include in this unit rate.

M/S MECHANICAL ENGINEERING and ELECTRICAL CONTRACTORS

PURBANCHAL BUILDERS

M/S NIKITA ENGINEERING CO