UPGRADATION OF EXISTING ELECTRIC SUPPLY SYSTEM UNDER GE (UTILITY) UDHAMPUR

Amount

Excavating in trenches, n exc 1.5 m wide and n.exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, for laying cables/pipes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth in any type of soil, complete all as specified and as directed by Engr-in-Charge.

Description all as above but exc 1.5mtr and not exc. 3 mtr in depth, complete all as specified .

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

Removing excavated material not exc 50M and depositing where directed at a level not exc 1.5M above the starting point, complete all as specified and directed.

Dry coarse sand as cushioning to under ground cable provided with layer of 8 cms deep before laying the cable and 15 cms deep after laying and stretching the cable, punned to 18 cm thick complete all as specified and as directed. NOTE Only punned thickness shall be measured for payment purpose.

Plain cement concrete 1:3:6 type C-2(using 40mm graded crushed stone aggregates) in foundation filling and mass concrete complete all as specified and as directed by Engr-in-harge.

Plain cement concrete 1:2:4, type B-1 (using 20 mm graded crushed stone aggregates) as in copings etc. and in similar works including weathering, slightly rounded or chamfered angles and throating and necessary form works, complete, all as specified and directed by Engr-in-Charge.

Precast unreinforced concrete cable cover class HV, TYPE 1, flat, size 300mmx180mmx40mm conforming to IS-5820 (1970), for protection of HT under ground cable, complete all as specified and as directed by Engr-in-Charge. (ISI marked)

Sub class 'B' bricks, old size, well burnt laid flat dry for protection of under ground cable complete all as specified and directed.

150 mm bore tubing 'light grade' galvanised iron with all fittings and fixed to poles, walls etc. with flat iron clamps/bolts/nuts/washers or laid in floors/under roads complete all as specified and directed

Supply, laying & testing cable XLPE cable earthed system insulated heavy duty screened PVC bedded, galvanised strip or wire armoured electric power cable with stranded aluminium conductor 11000 volts grade (with earth system) as per IS, cross sectional area 185 sqmm 3 core complete all as specified and directed. NOTE :- (i) Cable shall be provided with different colours for different feeders as directed by Engineer-in-charge. (ii) The cable drum should have minimum 500 RM length.

Supply, laying & testing cable XLPE cable earthed system insulated heavy duty screened PVC bedded, galvanised strip or wire armoured electric power cable with stranded aluminium conductor 11000 volts grade (with earth system) as per IS, cross sectional area 120 sqmm 3 core complete all as specified and directed.

Reinforced concrete pipes class NP-2, 250mm bore for protection of HT cables under road crossing, or in trenches etc all as specified and directed

Road cutting for laying of cable/pipe and making good the disturbed/excavated surface as per existing road including refilling the excavated material, compacting, WBM and black top carpeting with bitumen & aggregate following the stone/sand on top complete all as specified by Engr-in-Charge.

Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination Heat Shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 to 185 sqmm complete, all as specified and directed by Engineer-in-Charge.

Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination Heat Shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 to 185 sqmm complete, all as specified and directed by Engineer-in-Charge.

Cable jointing kit for 11 KV (Earthed) grade cable for straight through Heat Shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 to 185 sqmm complete, all as specified and directed by Engineer-in-Charge.

Steel tubular swaged pole erected to truly vertical or planted as strut complete with 6 mm thick MS Base plate,welded to pole,finial taper cap, bolts, nuts, screws,11 Mtr long, type 410 SP - 55,including drilling of holes of required size for fixing of cross arms,painting the exposed surfaces of pole with two coats of aluminium paint over a coat of red oxide zinc chrome primer and with two coats of black bituminous paint on the portion embedded in concrete, and marking pole no. with black paint at suitable height all as specified and directed by Engineer-in-Charge.Note:- The earthwork, PCC foundation, steel clamps, MS Cross arms & bracing of angle iron etc will be measured and paid separately under relevant items of Sch ‘A’

Dismantling of ACSR conductor of any size from LT/ HT over head line complete all as specified and directed

Dismantling of unserviceable steel tubular swaged pole/ PCC pole complete with accessories all as directed by Engieer-in-Charge.

Dismantling unserviceable LT/ HT insulators any type and size all as specified.

Dismantling of fabricated steel of MS channel bracket, cross arms, nut, bolts, washers all as specified

Dismantling stay assembly complete incl demolition of concrete and excavation all as specified.

Aluminium conductor steel reinforced (ACSR) of any size, stretched on HT/LT poles without kinks and bends binding with and incl binding wire incl fixing to insulators with aluminium binding wire in poles complete all as specified and as directed.

MS channel/angle iron/flat iron of required size and bend to shape as cross arms, bracing and support including, MS clamps back plates with bolts, nuts, and washers drilled for insulator including painting two coats of synthetic enamel paint (Aluminium shade) over a coat of red oxide primer all as specified. Note:- Insulator with bolts,washers, nuts and spindle will be measured and paid for separately under relevant item.

Disc type insulator, porcelain, vitreous 145mm high and 255mm dia ball and socket type, white, brown or green single disc assembly of 11000Volt grade complete all as specified and directed.

Pin type, porcelain, vitereous, white, brown or green insulator including one galvanised mild steel spindle two galvanised iron washers and one galvanised iron nut, 150mm height, 150 mm dia for 11000 volts grade complete all as specified and directed

Earthing complete with galvanized steel earth plate electrode 60 cm x 60 cm x 6mm thick buried directly in ground, (Earth pit not less than 2.25 mtr deep below ground level) with top edge of plate not less than 1.5 mtr below normal ground level, connected to and including 4mm dia galvanized iron wire for earthing lead fixed by means of bolts, nuts, check nuts and washers of galvanized standard iron or steel all as specified or indicated in electrical plate No 3 of MES Part-I, including testing on completion including the material and labour of the following :- (a) Excavation and earth work for drilling hole for electrode in any type of soil. (b) PCC pit in cement concrete 1:2:4 type B-1. (c) Precast RCC cover with suitable handle 40 mm thick in PCC 1:2:4 type B-1, reinforced with welded steel wire fabric weighing not less than 4 Kg/Sqm. (d) Funnel with watering pipe of GI 20 mm nominal bore medium grade and copper lugs etc all as specified.

Srl item No 28 Contd … (e) 15 mm nominal bore light grade GI protection pipe 7.5 mtr long for protection of earthing lead from mechanical injury or tempering. (f) Requisite quantity of common salt and charcoal. (g) Testing of earthing. Note : On testing after completion of earthing, if the desired earth resistance is not obtained, the earthing will be re-done by the contractor at his own risk and cost to the entire satisfaction of the Engineer-in-Charge.

Earthing complete with galvanized steel earth plate electrode 60 cm x 60 cm x 6mm thick buried directly in ground, (Earth pit not less than 2.25 mtr deep below ground level) with top edge of plate not less than 1.5 mtr below normal ground level, connected to and including 32 x 6 galvanized iron strip by means of bolts, nuts, check nuts and washers of galvanized standard iron or steel all as specified or indicated in electrical plate No 3 of MES Part-I, including testing on completion including the material and labour of the following :- (a) Excavation and earth work for drilling hole for electrode in any type of soil. (b) PCC pit in cement concrete 1:2:4 type B-1. (c) Precast RCC cover with suitable handle 40 mm thick in PCC 1:2:4 type B-1, reinforced with welded steel wire fabric weighing not less than 4 Kg/Sqm. (d) Funnel with watering pipe of GI 20 mm nominal bore medium grade and copper lugs etc all as specified.

Srl item No 29 Contd … (e) 40 mm nominal bore light grade GI protection pipe 7.5 mtr long for protection of earthing lead from mechanical injury or tempering. (f) Requisite quantity of common salt and charcoal. (g) Testing of earthing. Note : On testing after completion of earthing, if the desired earth resistance is not obtained, the earthing will be re-done by the contractor at his own risk and cost to the entire satisfaction of the Engineer-in-Charge.

Stay assembly comprising of 300 mm x 300mmx6mm thick galvanized mild steel stay plate galvanized stay rod of 20mm dia 1800mm long galvanized thimble stay, rod along with and fixed with 7/3.15mm stranded stay nuts and washers as shown on electrical plate No 1 or SSR Part-I including stay wire galvanised stranded 7/3.15mm as required at site complete all as specified and directed by the Engineer-in-Charge.

Danger notice plate of 1.6mm thick mild steel vitreous enamelled white with letter figures and conventional skull and bone in signal red colour and fixed with MS clamps bolts and nuts of approved size for HT 25X20cm size all as directed .

Anti climbing device spikes type fabricated out of MS bars (round, square and flat) including nuts bolts washers and welding in two halves made to shape to suit the cross section of the pole complete all as specified

Route indicator made out of PCC 1:2:4 and MS bar 8mm of size 90cmx35cmx50mm complete dully marked as( HT 11KV U/G CABLE),duly fixed in ground incl. Excavation,PCC for fixing along the cable all as specified and directed by Engr-in-Charge.

Continuous earth wire GI 4mm dia for continuos pole earthing including fixing on cross arms all as specified and directed by Engineer-in-Charge.

Guard cradles made to shape hexagonal rectangular or any other shape as required and fabricated out of galvanized steel wire 8 SWG (4mm dia) including binding wire of suitable size all as specified and directed by Engineer-in-Charge.

XLPE insulated, armoured, aluminium conductor cable, 1100 volts grade, heavy duty, cross sectional area 150 sq mm 3.5 core, laid in trenches/ducts/through pipe complete all as specified and directed.

Supply,Installation,Testing and Commisioning of HT 12KV, 3Phase 50Hz,having rupturing capacity minimum 350 MVA totally metal clad withdraw able type Vacuum Circuit Breaker INCOMER panel with Copper bus bar of suitable rating, horizontal isolation type VCB of capacity 800 Amps rated current, as per IEC 62271-100-200. The switchgear panel shall be of sheet steel construction with ALUZINC not less than 2.5mm thickness for load bearing section and not less than 2 mm thickness for non-load bearing and shall be totally dust and vermin proof. The offered panels shall be tested for IAC level of 25kA/1 Sec., No. of operation of Vacuum Interrupter Bottles (ABB/Siemens/ Schneider make) for better performance: (i) Mechanical life -30,000 Nos , (ii) Rated Current – 10,000 Nos (iii) Rated Short Circuit Current – 100 nos.- All the main components like VI/ VCB/ Relays/ Meters shall be of same make.Approved Makes: ABB (Unigear) / Siemens (NX-Air) / Schneider (PIX). Panel and VCB parameters are as below: (i) Rated Voltage level/ PF withstand voltage/ Impulse level:12KV/ 28kV/ 75 kVp (ii) Continuous current rating: minimum 800 A

Srl item No 37 Contd … (iii) Short circuit withstand current: minimum 25KA for 3sec. (iv) One no. minimum 800 Amps horizontal draw out type vacuum circuit breaker in 12KV metal clad floor mounting panel complete with following:- (a)Manually & Motor operated(230V,AC,50Hz) spring charged type, manually and electrically open (electrical – 110 VDC) operation type, incorporating mechanical as well as electrical ON/OFF indication "OFF" push button, test/service position limit switches, with minimum 6NO+6NC breaker auxiliary contacts in service position. (b) Cast resin Current transformer 11KV, 150-200/5-5A, Core1: class1, 15VA for 3 phase , Core2: 5P10, 15VA, (c) Cast resin potential transformer 11KV/V3/110V/V3/110V/3, 50VA, Cl 1.0, Cl 3P and HT Fuse at the primary end and 04 pole MCB at the secondary end of the PT (Confirming related IS specifications). A) Protection arrangements for the breaker shall comprise of the following: ( i) E/F, O/C, S/C, TCS with MODBUS protocol - Numerical Type Siemens (Siprotec)/ ABB (REF series)/ Schneider (MICOM P111)

Supply,Installation,Testing and Commisioning of HT 12KV, 3Phase 50Hz, having rupturing capacity minimum 350 MVA, totally metal clad withdraw able type Vacuum Circuit Breaker OUTGOING panel with Copper bus bar of suitable rating, horizontal isolation type VCB of capacity 630 Amps rated current, as per IEC 62271-100-200.The switchgear panel shall be of sheet steel construction with ALUZINC with not less than 2.5mm thickness for load bearing section and not less than 2 mm thickness for non-load bearing and shall be totally dust and vermin proof.The offered panels shall be tested for IAC level of 25kA/1 Sec. No. of operation of Vacuum Interrupter Bottles (ABB/Siemens/ Schneider only) for better performance: (i) Mechanical life -30,000 Nos , (ii) Rated Current – 10,000 Nos & (iii) Rated Short Circuit Current – 100 nos. - All the main components like VI/ VCB/ Relays/ Meters shall be of same make.Approved Makes: ABB (Unigear) / Siemens (NX-Air) / Schneider (PIX). Panel and VCB parameters are as below: (i) Rated Voltage level/ PF withstand voltage/ Impulse level:12KV/ 28kV/ 75 kVp (ii) Continuous current rating: minimum 630A (iii) Short circuit withstand current: minimum 25KA for 3sec. (iv) One no. minimum 630 Amps horizontal draw out type vacuum circuit breaker in 12KV metal clad floor mounting panel complete with following:-

Srl item No 38 Contd … (a) Manually & Motor operated (230V,AC,50Hz) spring charged type, manually and electrically open (electrical – 110 VDC) operation type, incorporating mechanical as well as electrical ON/OFF indication "OFF" push button, test/service position limit switches, with minimum 6NO+6NC breaker auxiliary contacts in service position. (b) Cast resin Current transformer 11KV, 50-100/5-5A, Core1: class1, 15VA for 3 phase , Core2: 5P10, 15VA, A) Protection arrangements for the breaker shall comprise of the following: i) E/F, O/C, S/C, TCS with MODBUS protocol - Numerical Type Siemens (Siprotec)/ ABB (REF series)/ Schneider (MICOM P111) ii) Relay should have mimic display iii) Complete with Master Trip/ Anti pumping relay. iv) Auxillary Relay Alarm/Trip, OTI/WTI, Bucholz etc. All the Relays shall belong to a common platform and shall be of single make

Supply, installation, testing and commissioning of 11KV, 800 Amps, having rupturing capacity minimum 350 MVA,25KA for 1 Sec HT vacuum circuit breaker panel for Bus coupler conforming to IEC 62271-200, IAC-AFLR-25KA for 1 Sec, LSC2B-PM class front accessed including comprising of following material: a) 800 Amp continuous rated electrolytic copper bus bars, droppers and bus bars should be insulated with full system voltage sleeves of Reychem or equivalent make. b) Cassette mounted vacuum circuit breaker as per IEC 62271-100. Vacuum circuit breaker should have three no. resin encapsulated vacuum bottles of the same manufacturer as of circuit breaker. c) Motorized spring charging mechanism with integral spring charging handle for manual spring charge. d) Interpanel epoxy barrier to restrict arc propagation from one panel to other. e) Accessories like local remote switch, breaker control switch(T-N-C), space heater with thermostat, DC & AC control circuit through f) MCB, indicating Lamps for RYB, Spring charge, DC supply healthy, breaker ON/OFF, breaker in SERVICE/TEST

Srl item No 39 Contd … g) Master trip Relay and anti pumping relay. h) Electrical Interlock to prevent double sourcing. j) 9 Window Annunciation window & hooter k) Panel should also have including additional facility like: 1. Continuous rated closing and tripping coil of 24V DC. 2. Fully internal arc type tested (25 KA for 1 Sec) as per latest IEC 62271-200. 3. Vacuum bottles should be epoxy encapsulated. 4. Racking in/out, manual closing/tripping of CB with compartment door closed. 5. Breaker shall be provided with following contacts a. Auxiliary switch with 6NO+6NC mounted on the draw out portion of the switchgear. b. Position switches with 3 NO+1NC contacts for each position in SERVICE and TEST. 6. Panel height should not exceed 2300mm. Make : ABB/Siemens/ Schneider .

NOTE FOR SL NO 37 TO 39 :- (a) Factory testing of equipment shall be carried out by an officer detailed by the Accepting officer at the factory premises. Contracto shall facilitate all the testing arrangements with the manufactures at no extra cost. (ii) 3 Sets of Literature,Maintenance Manual,Operatig tools required for the operations shall be supplied alongwith VCB's and rates are included in above items. (iii) Eight windows annunciated hooter, suitable capacity of space heaters in VCBs to be povided and rate are deemed to be included in unit rates.

M&L for Switch Air break gang operated tripple pole structure mechanically operated from ground level mounted on and including 12 No insulators and steel frame, out door type, suitable for vertical installation, single break, provided with locking arrangement consisting of MS channel, HT post type insulator copper alloy high pressure assembly with drop out fuse assembly with fuse carrier fuse element 5-20 amp mounted on insulator and operating rod of 25mm dia medium grade GI pipe complete conforming to IS-1018 of 1972 with continuous current rating upto 400 amps and voltage 11 KV including testing and commissioning all as specified.

Lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amp,11000 Volts complete all as specified.

Supply, Install, commissioning and testing of battery charger and DC Board as under: A) BATTERY CHARGER Automatic Float & Manual boost charger housed in one common panel/enclosures powder coated. The panel shall be rigid self supporting structure reassembled totally enclosed cubical constructed out of sheet metal of 2 mm thick. The panel shall have hinged door with adequate cross ventilation on both sides as well as on the top to avoid the unique rise of temperature. The panel shall be duly cleaned with chemical finish of synthetic enameled light grey paint internally as well externally. The charger equipment shall employee static semi conductor full wave silicon rectifier suitable for operation in conjuction with air cooled transformer single phase 230 volts 50 cycles supply. The charger shall consist of one automatic/manual float charger alongwith associated components for interlocking between the trickle charger and boost charger. The specification of the battery charger shall be as under :- 1. Type of Rectifier : Air cooled type 2. AC input : 230 volts 50 cycle 3. Type of charger : Servo control 4. Voltage variation : 230 V

Srl item No 42 Contd … 5. Frequency : 50 C/Sc 6.Frequancy variation Plus minus 2 % 7. Boost Charger (i) Power output KW (ii) Voltage 36-43 volts 8. Float charger ; (i) Power output 0.43 KW (ii) Voltage 36-43 volts (iii) Current 10 Amps 9. DC output voltage regulation step less regulation from No load to full load 10. Maximum temperature : 35ºC to 40ºC rise over and ambient temperature of 50ºC. 10. Load limiting feature : Dropping characteristic beyond the starting cap of the charger. 11. Short time rating in amps and time : 10% over load for one hour. 12. Rated DC output voltage : (A) Float charger output voltage adjustable continuously 0-40 volts DC when operated manually : (B) Boost charger voltage adjustable continously 0-50 volts DC. 13.Sealed Maintenance free Batteries of 2 volts and 100 AH each : 15 Nos

Srl item No 42 Contd … B. DC BOARD 30 Volt DC distribution board in sheet steel cabinet made out of CRC sheet of 2mm thick, powder coated floor mounting hinged door on the back for easy access to the components installed inside. The board will be completed with wiring of copper conductor bus bar links crimping terminal block and labels together with support frame work including consisting of the following components with :- (a) Incoming Panels:- (i) Moulded case circuit breaker suitable for 30 volt DC 32 Amps 02 Nos single pole with over load and in short circuit released as incoming circuit - 01 No (ii) Moving coil volt meter digital type 96x96 mm range 0-50 V with fuse protection. (iii) Moving coil Ammeter digital 96x96 mm 0-30 Amp with LED indicating lamp. (iv) Indicating LED lamp on the incoming side. (b) Outgoing panel :- (i) Double pole MCB to work on DC Supply 30 volts of 10 A rating and provided with indicating lamps. NOTE:- Wiring from Battery Bank to VCB's Panels for connection of auxilary supply to be carried out with appropriate size of copper cable and rates are included in above items.

SHIV CHARAN GUPTA AND SONS

Sant Construction Co.

N K BUILDERS

Shree Balaji Construction

TRIVENI CONSTRUCTIONS

KB PROJECTS

Shekhar Enterprises

BHARATSHAH CONSTRUCTION CO