Augmentation of power supply system at new Civil Airport, Jaisalmer SH Balance Work

Amount

SUB HEAD- 1 - HT Panels Installation, testing & commissioning of existing CG Power and Industrial Sloutions Limited make indoor type floor mounted metal clad, 11KV VCB panel with 3 Nos. VCBs, totally enclosed & fully interlocked, horizontal drawout, horizontal isolation type breaker as per IS 13118, as amended up to date and additional specifications, having capacities as mentioned below, single break, trip free mechanism, motorised charged and auto/ manually closing breaker suitable for use on 11 KV, 3 Phase, 50Hz AC supply with short circuit fault level of 350 MVA, complete with self contained fully interlocked, rack in and rack out mechanism, air insulated but encapsulated copper bus bars of 630 Amps capacity, breaker featured with mechanical ON/ OFF indicator with hand trip device, spring release coil, shunt trip coil , auxiliary contacts of 6 NO + 6 NC and equipped with following switchgears and accessories i/c one earth truck, connections suitable for 3C x 240 sq.mm. XLPE cable of 11KV grade (cable entry from bottom), power pack with 220 volt AC input & 24V DC continous output. 2.5 Sq. mm coper conductor single core cable for voltage & 2.5 Sq. mm for current circuit, danger notice plates, etc. necessary metering protection and indication and mounted with the following switch gears as per technical specifications etc. complete as required in accordance with OEM recommendations.

B) Outgoing - 2 Nos. 630 A VCB each having following accessories. i) Digital flush type class-0.5 accuracy multifunction meter with RS485 showing V, A, PF, KVA , KW, KWH etc. as required. ii) 1 set -Microprocessor based numerical relay with O/L , E/F and S/C protection and Non-Volatile memory for 200-event log, Twenty-fault-record with time-stamp, Local HMI and user-programmable 4DI/6DO. Relay shall have dedicated button to ON/OFF circuit breaker when required and should be communicable on MODBUS (RS485) protocol. iii) Set of 3 CTs dual core dual ratio 100/ 50/ 5/ 5 A of 15VA burden and accuracy Class-0.5 for metering and class 5P10 for protection. iv) LED indication lamps for R,Y,B, Breaker ON,OFF,TRIP, Trip circuit healthy, spring charged, DC supply healthy, etc. as required. v) Transformer protection release with 8 window annunciation, hooter etc. as required. Note: ITC is to be done by agency through OEM. CGPISL make 11 kV HT VCB of above specifications are already supplied at site.

Transformers Installation, testing & commissioning of existing Kotsons make 1600 KVA 11KV/.433KV, Dyn11, 3phase 50Hz, indoor type copper wound, Oil type step down transformer ONAN i/c oil complete with all modern fittings as required including assembly of fins, conservator, lifting lugs, Roller type bi-directional wheels, cable end box on HV side suitable for 3C X 240 Sqmm XLPE cable of 11KV grade & suitable busduct (2500Amps.) connection arrangement on LV side, disconnecting chamber on both sides, winding temprature indication & alarm, bucholz relay , earthing terminals, diagram and rating plate, explosion vent, OFF load tap changer (+5% to -10%) @ of 2.5% steps etc. confirming to IS: 1180, Level-2 with latest amendments complete in all respects as required at site in accordance with OEM recommendations including first filling of filtered dehyderated transformer oil but excluding supply of transformer oil. Testing of oil before and after commissioning & also if filteration required is included in the scope as per OEM recommendations. Note: ITC is to be done through OEM. KOTSONS make transformers of above specifications are already supplied at site.

H.T. CABLE LAYING : Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 11 KV grade of following size direct in ground including excavation, sand cushioning, protective covering and refilling the trench etc as required. Above 120 sq. mm and upto 400 sq. mm

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 11 KV grade of following size in the existing masonry open duct as required. Above 120 sq. mm and upto 400 sq. mm

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 11 KV grade of following size in the existing RCC/HUME/ METAL pipe as required. Above 120 sq. mm and upto 400 sq. mm

H.T. CABLE END TERMINATION Suppy and making indoor cable end termination with heat shrinkable jointing kit complete with all accessories including lugs suitable for 3 core X 240 sqmm XLPE aluminium conductor cable of 11 KV (E) grade as required.

Supply and making outdoor cable end termination with heat shrinkable jointing kit complete with all accessories including lugs suitable for 3 core X 240 sqmm XLPE aluminium conductor cable of 11 KV (E) grade as required.

Providing, laying and fixing 150 mm dia G.I. pipe (medium class) in ground complete with G.I. fittings including trenching (75 cm deep) and re-filling etc as required.

Supply of ISI mark Double Wall Corrugated HDPE pipe of size 160 mm OD & 135 mm ID in 6 mtr length bar as per IS 14930 part -II with upto date ammendment including snapfit coupler complete as required & as specified and laying in ground laying on surface with M S clamp, nut, bolts complete as required. NOTE : Sealing of end of pipe after laying of cable to avoid entering water, ingress etc.

APFC Panel - 500 KVAr: Supply, installation, testing and commissioning of dust, damp and vermin proof cubicle free floor, indoor type factory built sheet steel enclosed modular bolted construction extendable APFC panel comprising of 500 KVAR with heavy duty capacitors units in a bank formation to achieve Automatic operation. suitable for operation on 415 ±10% volts, 50 Hz AC 3 phase 4 wire supply system fabricated out of Form 4b compartmentaised design and covered with CRCA sheet steel of 2mm thick for frame work and 1.6mm thick for doors/ covers, i/c cleaning & finishing complete with 7 tank process for powder coating in approved shade, TPN Aluminium bus bars of high conductivity, DMC/SMC bus bar supports, with short circuit with stand capacity of 50KA for 1 sec., bottom base channel of section not less than ISMC 75mm, fabrication shall be done in transportable sections, entire panel shall have a common copper earth bar of suitable size with 2 nos earth studs,including control wiring with 2.5sqmm. PVC insulated FRLS copper conductor Single Core cable for voltage & 2.5sq.mm for current circuits, danger notice plates, etc. necessary metering protections & indications and mounted with the following switch gears as per drawing and technical specifications etc. complete as required. The Capacitor Bank shall be of type tested design as IS-16636-2017,IEC 61921 and IEC 61439-1 & 2.

BUS TRUNKING: Supplying, installing by suspension on ceiling, testing and commissioning of following capacity Sandwich Type Rising Mains for use on 3 phase 4 wire 415 volts, 50Hz A.C. supply with metal clad enclosure having IP-54 rating after fixing the tap off boxes and all accessories, made of 1.6mm thick steel sheet duly powder coated in convenient sections complete with 4 Nos aluminium bus bars having current density of 130 A/ sq cm at nominal current rating, necessary joints, elbow joints & expansion joints and bends, fire barrier at each floor, provision of tapping at every metre, adopter box and copper flexible for joints continuous earthing with 2 Nos aluminium strip of suitable size (one on each side) including, G.I. clamping brackets, suspenders, angle iron bracket, steel fasteners, connecting to earthing system etc. as required

LT Distribution Panels (Type Tested Assemblies as per IEC 61439) Essential MV Switch Board (TTA) Supply, installation, testing and commissioning of dust, damp and vermin proof cubicle free floor, indoor type factory built sheet steel enclosed modular bolted construction extendable Main LT panel, suitable for operation on 415 ±10% volts, 50 Hz AC 3 phase 4 wire supply system fabricated out of Form 4b compartmentalised design and covered with CRCA sheet steel of 2mm thick for frame work and 1.6mm thick for doors/ covers, 3mm thick for gland plates i/c cleaning & finishing complete with 7 tank process for powder coating in approved shade, having extensible type TPN Aluminium bus bars of high conductivity, DMC/SMC bus bar supports, with short circuit with stand capacity of 50KA for 1 sec., bottom base channel of section not less than ISMC 75mm, fabrication shall be done in transportable sections, entire panel shall have a common copper earth bar of suitable size with 2 nos earth studs, solid connections from main bus bar to switch gears with required size of Aluminium bus bars, including control wiring with 2.5sqmm. PVC insulated FRLS copper conductor Single Core cable for voltage & 2.5sq.mm for current circuits, cable alleys, cable gland plates in two half, danger notice plates, with interconnections, necessary metering protections & indications and mounted with the following switch gears as per drawing and technical specifications etc. complete as required.

I Incomers & Buscoupler i) 1250 Amp. 4 Pole ACB - 3 set (2 for Incomer & 1 For Buscoupler From AMF Panel) 1250 Amps, Four pole horizontal drawout type Air Circuit Breaker(ACB)of fault breaking capacity 50 KA (Ics=100%Icu=Icw(1sec.)) EDO with inbuilt ZSI feature for Total Discrimination and RS485 Port compatibility, fitted with interlocked, Electrically and mechanically ON/OFF and service/test/isolated position indicators and frame earthing contact, conforming to IS:13947-2; 1993 as amended upto date complete with following accessories and features for each ACB. Microprocessor based release for over current, earth fault & short circuit protection and Current Parameters measurement on inbuilt display. LED bargraph on release ensures easy access to % phase wise loading information. Mechanical ready to close features checks all safety parameters before closing for enhanced safety. No derating upto 50 Deg C and Fully rated neutral with inbuilt protection and suitable to receive bus duct connections. ii) Metering, indications and protections for each incomer: a) LED indication lamps for RYB, breaker 'ON/ OFF/ TRIP', spring charged, DC control supply healthy etc with 2Amp control MCBs b) Set of Digital flush type class - 0.5 accuracy multifunction meters (with RS485 port) 0- 1250A, showing V, A, PF, Hz, KW, KWH, KVAR, etc.with 3 Nos. cast resin current transformers of 1250/5 Amp ratio, 15 VA Class 0.5 metering. c) Under voltage/ Overvoltage with definite time relay & master trip relays - 1 set for Transformer incomer & Master trip relays - 1 set for DG incomer. d) Suitable size & nos of CT's for all protection relays (class 5P10, 15VA) and APFCR (class 0.5, 15VA) etc as per drawings

II Bus Bar : TPN aluminium extensible type main bus bars of minimum of 1600 Amps. capacity & auxiliary Bus Bars of suitable capacity with heat shrinkable coloured sleeves and i/c DMC/SMC bus bars supports at required intervals complete for cross section, size supports & their spacing etc. for withstanding fault level of 50ka capacity. Outgoings: i) 4 Nos. - 630 Amp., 4 Pole, 50kA Microprocessor based MCCB (Ics=100%Icu) with built-in protection functions for over current, short circuit current and Earth Fault with embedded display and double break fast tripping mechanism complete as required for existing essential panel Each outgoing breaker shall have the following accessories- a) 1 No. - 96 mm X 96mm flush pattern digital type multifunction meter (with RS485 port) showing V, A, PF, Hz, KW, KWH, KVAR, etc. and three nos. cast resin suitable rating of CT's, class 0.5 accuracy & 15 VA burden, protection MCB's etc. b) LED indication lamps with 2Amp back up control MCB for RYB, breaker 'ON/ OFF/ TRIP', spring charged, DC control supply healthy, test terminal block set, circuits as per standard practice etc. as required for all ACB's. c) Extended rotary operating mechanism, terminal extension spreaders, LED indication lamps with 2Amp control MCB for breaker 'ON/OFF' for all MCCB's. MAIN Essential LT PANEL AS ABOVE

Non-essential MV Switch Board (TTA) Supply, installation, testing and commissioning of dust, damp and vermin proof cubicle free floor, indoor type factory built sheet steel enclosed modular bolted construction extendable Main LT panel, suitable for operation on 415 ±10% volts, 50 Hz AC 3 phase 4 wire supply system fabricated out of Form 4b compartmentalised design and covered with CRCA sheet steel of 2mm thick for frame work and 1.6mm thick for doors/ covers, 3mm thick for gland plates i/c cleaning & finishing complete with 7 tank process for powder coating in approved shade, having extensible type TPN Aluminium bus bars of high conductivity, DMC/SMC bus bar supports, with short circuit with stand capacity of 50KA for 1 sec., bottom base channel of section not less than ISMC 75mm, fabrication shall be done in transportable sections, entire panel shall have a common copper earth bar of suitable size with 2 nos earth studs, solid connections from main bus bar to switch gears with required size of Aluminium bus bars, including control wiring with 2.5sqmm. PVC insulated FRLS copper conductor Single Core cable for voltage & 2.5sq.mm for current circuits, cable alleys, cable gland plates in two half, danger notice plates, with interconnections, necessary metering protections & indications and mounted with the following switch gears as per drawing and technical specifications etc. complete as required.

I Incomers: i) 2500 Amp. 4 Pole ACB - 3 set (2 for Transformer & 1 for Buscoupler) 2500 Amps, Four pole horizontal drawout type Air Circuit Breaker(ACB)of fault breaking capacity 50 KA (Ics=100%Icu=Icw(1sec.)) EDO with inbuilt ZSI feature for Total Discrimination and RS485 Port compatibility, fitted with interlocked, Electrically and mechanically ON/OFF and service/test/isolated position indicators and frame earthing contact, conforming to IS:13947-2; 1993 as amended upto date complete with following accessories and features for each ACB. Microprocessor based release for over current, earth fault & short circuit protection and Current Parameters measurement on inbuilt display. LED bargraph on release ensures easy access to % phase wise loading information. Mechanical ready to close features checks all safety parameters before closing for enhanced safety. No derating upto 50 Deg C and Fully rated neutral with inbuilt protection and suitable to receive bus duct connections. ii) Metering, indications and protections for each incomer: a) LED indication lamps for RYB, breaker 'ON/ OFF/ TRIP', spring charged, DC control supply healthy etc with 2Amp control MCBs b) Set of Digital flush type class - 0.5 accuracy multifunction meters (with RS485 port) 0- 2500A, showing V, A, PF, Hz, KW, KWH, KVAR, etc.with 3 Nos. cast resin current transformers of 2500/5 Amp ratio, 15 VA Class 0.5 metering. c) Under voltage/ Overvoltage with definite time relay & master trip relays - 1 set for Transformer incomer & Master trip relays - 1 set for DG incomer. d) Suitable size & nos of CT's for all protection relays (class 5P10, 15VA) and APFCR (class 0.5, 15VA) etc as per drawings

II Bus Bar : TPN aluminium extensible type main bus bars of minimum of 3200 Amps. capacity & auxiliary Bus Bars of suitable capacity with heat shrinkable coloured sleeves and i/c DMC/SMC bus bars supports at required intervals complete for cross section, size supports & their spacing etc. for withstanding fault level of 50ka capacity.

III Outgoings: i) 6 No. - 1250 Amps, Four pole horizontal drawout type Air Circuit Breaker(ACB)of fault breaking capacity 50 KA (Ics=100%Icu=Icw(1sec.)) EDO with inbuilt ZSI feature for Total Discrimination and RS485 Port compatibility, fitted with interlocked, Electrically and mechanically ON/OFF and service/test/isolated position indicators and frame earthing contact, conforming to IS:13947-2; 1993 as amended upto date complete with following accessories and features for each ACB. Microprocessor based release for over current, earth fault & short circuit protection and Current Parameters measurement on inbuilt display. LED bargraph on release ensures easy access to % phase wise loading information. Mechanical ready to close features checks all safety parameters before closing for enhanced safety. No derating upto 50 Deg C and Fully rated neutral with inbuilt protection & suitable to receive bus duct connections. (2 Nos for HVAC,2 No"s for AMF, 2 No Cap Panel) ii) 4 Nos. - 630 Amp., 4 Pole, 50kA Microprocessor based MCCB (Ics=100%Icu) with built-in protection functions for over current, short circuit current and Earth Fault with embedded display and double break fast tripping mechanism complete with spreader links and extendable ON/OFF rotary handle iii) 6 Nos. - 400 Amp., 4 Pole, 50kA Microprocessor based MCCB (Ics=100%Icu) with built-in protection functions for over current, short circuit current and Earth Fault with embedded display and double break fast tripping mechanism complete with spreader links and extendable ON/OFF rotary handle iv) 4 Nos. - 250 Amp., 4 Pole, 50kA Microprocessor based MCCB (Ics=100%Icu) with built-in protection functions for over current, short circuit current and Earth Fault with embedded display and double break fast tripping mechanism complete with spreader links and extendable ON/OFF rotary handle v) 6 Nos. - 160 Amp., 4 Pole, 50kA Microprocessor based MCCB (Ics=100%Icu) with built-in protection functions for over current, short circuit current and Earth Fault with embedded display and double break fast tripping mechanism complete with spreader links and extendable ON/OFF rotary handle vi) 8 Nos. - 100 Amp., 4 Pole, 50kA Microprocessor based MCCB (Ics=100%Icu) with built-in protection functions for over current, short circuit current and Earth Fault with embedded display and double break fast tripping mechanism complete with spreader links and extendable ON/OFF rotary handle Each outgoing breaker shall have the following accessories- a) 1 No. - 96 sq.mm. flush pattern digital type multifunction meter (with RS485 port) showing V, A, PF, Hz, KW, KWH, KVAR, etc. and three nos. cast resin suitable rating of CT's, class 0.5 accuracy & 15 VA burden, protection MCB's etc. b) LED indication lamps with 2Amp back up control MCB for RYB, breaker 'ON/ OFF/ TRIP', spring charged, DC control supply healthy, test terminal block set, circuits as per standard practice etc. as required for all ACB's. c) Extended rotary operating mechanism, terminal extension spreaders, LED indication lamps with 2Amp control MCB for breaker 'ON/OFF' for all MCCB's.

Floor Distribution Board FF (Non-Essential) (PTTA) Supply, installation, testing and commissioning of dust, damp and vermin proof cubicle free floor, indoor type factory built sheet steel enclosed modular bolted construction extendable Main LT panel, suitable for operation on 415 ±10% volts, 50 Hz AC 3 phase 4 wire supply system fabricated out of Form 4b compartmentalised design and covered with CRCA sheet steel of 2mm thick for frame work and 1.6mm thick for doors/ covers, 3mm thick for gland plates i/c cleaning & finishing complete with 7 tank process for powder coating in approved shade, having extensible type TPN Aluminium bus bars of high conductivity, DMC/SMC bus bar supports, with short circuit with stand capacity of 50KA for 1 sec., bottom base channel of section not less than ISMC 75mm, fabrication shall be done in transportable sections, entire panel shall have a common copper earth bar of suitable size with 2 nos earth studs, solid connections from main bus bar to switch gears with required size of Aluminium bus bars, including control wiring with 2.5 sqmm. PVC insulated FRLS copper conductor Single Core cable for voltage & 2.5sq.mm for current circuits, cable alleys, cable gland plates in two half, danger notice plates, with interconnections, necessary metering protections & indications and mounted with the following switch gears as per drawing and technical specifications etc. complete as required.

SUB STATION SAFETY EQUIPMENTS (In the sub-station building as required and as per detailed specifications.)

Supply of Rubber hand gloves suitable for 11 KV.

Supply of bilingual first aid chart (English and Hindi Language) as prescribed by St. John Ambulance brigade OR Indian Red Cross complete as required.

Supply and fixing of fire retardant/extinguishing electrically insulated ISI Mark PVC synthetic mat of following sizes and voltage grade confirming to IS 15652-2006 having no adverse effect of mineral oil (acid/alkaline), water proofing of floor, sealing all joints and fixing with suitable chemical as required and as specified.

1000 mm wide X 2 mm thick suitable for all voltages not exceeding 3.3 KV grade AC system voltage.

1000 mm wide X 2.5 mm thick suitable for all voltages not exceeding 11KV grade AC system voltage.

Providing & fixing danger plates made of mild steel at least 2 mm thick & vitreous enameled white on both sides & with inscriptions in signal red colour on front side as read

High Voltage-Size 250 mm x 200 mm

Medium Voltage-size 200 mm x 150 mm

Providing and fixing carbon dioxide (CO2) type fire extinguishers confiming to IS 2878:1976 and cylinders fully charged of following capacity. (a) 6.5 KG

Supply and fixing of foam fire extinguishers trolley mounted portable type 50 liter capacity along with trolley complete as required.

Supply and fixing safety instruction chart in word duly framed with 5 mm thick glass as required. (approx. front area 1.20 sq mt)

Providing of set of 4 Nos. 9.5 Litre capacity Gl bucket painted in post office red colour with prior coat of red oxide paint and written with white paint 'FIRE' and mounted on MS angle iron frame with bracket of appropriate size & capacity i/c filling sand etc.

Providing First Aid Box as approved by St. John Ambulance Brigade/indian Red Cross conforming to IS 2217:1963.

SH-II S.I.T.C. OF DG SET I/C AMF PANEL & ASSOCIATED WORKS S.I.T.C. of "Silent Type" DG set comprising of following :- (i) 1 No. Alternator suitable for generating 750 KVA power at 0.8 pf, 415 V, 3 phase, 50 Hz, 1500 RPM, self excited, self regulated & self ventilated with brushless excitation & conforming to IS 4722 & BS-2613 all complete as required. (ii) 1 No. multi cylinder, 4 stroke, turbo charged water cooled diesel engine developing required BHP at 1500rpm suitable for above alternator & complete with all accessories i.e. base frame, fly wheel, air cleaner, coupling, starting equipment, arm pads, batteries, radiator, speed governing mechanism to keep correct frequency at all operating conditions well within limits laid down in relevant BS/IS for class AI governing with amended upto date & anti-vibration pads, batteries etc. complete as required. (iii) 1 no. AMF panel suitable for operation on 415V, 3 phase, 50 Hz, AC supply in conjuction with 'Mains' & "Generating Set' for providing continuous power supply with a break not exceeding 15 sec. with PLC based control system. Supplying & Laying control cable (10 core x 2.5 sqmm copper conductor) connection and inter-connection etc. and having manual draw out type Four Pole motorised ACBs of 1250 Amps for mains and alternator and comprising of battery charger and relays, meters, bypass arrangement etc. all as reqd. and as specified i/c interconnection of 2 AMF panels as required. (Type Tested Assemblies as per IEC 61439) (iv) In-built fuel tank as per OEM specifications complete as required. (v) 12V/24V DC starting system comprising of starter motors: voltage regulator and arrangement for initial excitation complete with suitable nos. of batteries (25 plates, 180Amp. hour capacity lead acid type) complete as required. (vi) Accoustic and weather proof enclosure with arrangement for fresh air intake for cooling of the engine & alternator, extraction, discharging hot air into the atmosphere as per specifications including exhaust stack foundations and support system.

S.I.T.C. of calibrated HSD buffer/service tank, rectangular MS (IS:226) construction with 990 ltrs. capacity complete with flanged inlet & outlet, overflow, drain, vent, mechanical level indicator, 450mm dia access hole on top with cover, flame arrestor. Tank will be made out of 3mm MS sheet & will be provided with structural support to keep tank base at (2000mm) above FFL with access ladder arrangement, painting etc. complete as required.

Supply of 1.1 KV grade XLPE armoured aluminium conductor cable of following sizes & as per IS:7098-part-I specifications i/c loading/unloading & transportation of cables etc. complete as required:

3.5 x 70 sqmm

3.5 x 150 sqmm

3.5 x 300 sqmm

Laying of one number PVC insulated & PVC sheathed / XLPE power cable of 1.1 KV grade of following size in the existing RCC / HUME / METAL/GI pipe as required:-

Above 35 sqmm and upto 95 sq.mm

Above 95 sq. mm and upto 185 sq. mm

Above 185 sqmm & upto 400 sqmm

Laying of one number PVC insulated & PVC sheathed / XLPE power cable of 1.1 KV grade of following size in the existing masonary open duct as required:-

Above 35 sqmm and upto 95 sq.mm

Above 95 sq. mm and upto 185 sq. mm

Above 185 sqmm & upto 400 sqmm

Laying and fixing of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size on cable tray as required.

Above 35 sqmm and upto 95 sq.mm (clamped with 25 x 3mm MS flat clamp)

Above 95 sq. mm and upto 185 sq. mm (clamped with 25/40 x 3mm MS flat clamp)

Above 185 sqmm & upto 400 sqmm (clamped with 40 x 3 mm MS flat clamp)

Excavation of the cable trenches in hard rock not exceeding 1.5 meters in width, and lift upto 1.5 meters, including getting out the excavated soil and disposal of excavated soil as directed within a lead of 50 meters.

Supplying & making end termination with brass compression gland & aluminium lugs for following size of PVC insulated & PVC sheathed/XLPE aluminium conductor cable of 1.1 KV grade as required.

3.5 x 70 sqmm

3.5 x 95 sqmm

3.5 x 150 sqmm

3.5 x 185 sqmm

3.5 x 240 sqmm

3.5 x 300 sqmm

3.5 x 400 sqmm

Supplying and making straight through joint with heat shrinkable kit including ferrules and other jointing materials for following size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 KV grade as required.

3.5 x 70 sqmm

3.5 x 185 sqmm

3.5 x 240 sqmm

3.5 x 300 sqmm

Earthing with G.I. earth plate 600 mm x 600 mm x 6 mm thick i/c accessories & providing masonary enclosure with cover plate having locking arrangement & watering pipe of 2.7 metre long etc. with charcoal/coke & salt etc. as required.

Earthing with copper earth plate 600 mm x 600 mm x 3 mm thick i/c accessories & providing masonary enclosure with cover plate having locking arrangement & watering pipe of 2.7 metre long etc. with charcoal /coke and salt as required.

Supplying & laying 25 mm x 5 mm copper strip at 0.50 metre below ground as strip earth electrode i/c connection / terminating with nut, bolt, spring, washer etc. as required. (Jointing shall be done by overlapping & with 2 sets of brass nut bolt & spring washer spaced at 50 mm).

Supplying & laying 25 mm x 5 mm G.I strip at 0.50 metre below ground as strip earth electrode i/c connection/terminating with G.I. nut, bolt, spring, washer etc. as required. (Jointing shall be done by overlapping & with 2 sets of G.I. nut bolt & spring washer spaced at 50 mm).

Providing & fixing 25 mm x 5 mm copper strip in 40 mm dia G.I. pipe from earth electrode including connection with brass nut, bolt, spring, washer excavation and re-filling etc. as required.

Providing & fixing 25mm x 5mm G.I. strip in 40mm dia G.I. pipe from earth electrode including connection with G.I. nut, bolt, spring, washer excavation and re-filling etc. as required.

Providing and fixing 25 mm X 5 mm copper strip on surface or in recess for connections etc. as required.

Providing and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required.

Demolishing cement concrete road of nominal concrete 1:3:6 or richer mix (i/c equivalent design mix) manually/ by mechanical means including cutting of road by machine for suitable width and upto 350 mm depth, disposal of material within 50 metres lead, repaire and making good the same after pipe laying by providing and laying in position cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) etc complete as per direction of Engineer - in - charge.

Construction of suitable RCC/PCC foundation for DG sets mentioned above in item no. 16 as per approved design & drawing from OEM including excavation, PCC, RCC, shuttering, reinforced steel, refilling, supply of required material etc as per site requirement complete as per direction of Engineer-in charge.

Supplying and installing following size of perforated painted with powder coating M.S. cable trays with perforation not more than 17.5%, in convenient sections, joinedwith connectors, suspended from the ceiling with M.S. suspenders including bolts & nuts, painting suspenders etc as required

150 mm width X 50 mm depth X 1.6 mm thickness

300 mm width X 50 mm depth X 1.6 mm thickness

Dismantaling & shifting of 01 No 50 KVA DG Set along with AMF Panel from existing power house (new Airport) to existing power house (Old Airport-Airforce Area) i/c loading, unloading by arranging manpower and suitable machinery for carrying out & transportation etc. complete as required.

Installation, testing & commissioning of old (existing) 50 KVA DG Set along with AMF Panel i/c cable connections/wiring work etc. complete as required inside Airforce area (Old Airport).

Dismantaling of 100 KVA DG Set from power house to the site as instructed by Engineer in charge.

Dismantling & shifting of 500 KVA transformer from transformer room to the site as instructed by Engineer -Incharge

Dismantling & shifting of existing Non essential panel and HT panel from power house to the site as instructed by Engineer -Incharge

Demolition of foundation of existing one number 100 kVA DG set

Excavation for cable trenches of depth upto 1.2 m in soft soil including getting out the excavated soil and disposal of surplus excavatde soil as directed within a lead of 50 metres.

Dismantaling, shifting, installation, testing & commissioning of 1 no. 50 kVA DG set from interior of power house to outside the power house for temporary power supply

Supply of transformer oil if required for Kotsons make 1600 kVA, 11KV/.433KV, Dyn11, 3phase 50Hz, indoor type copper wound, Oil type ONAN step down transformer as per OEM recommendations as per site requirement.

DOSHI ELECTRIC ENGG. CO.

SACHIN ELECTRICALS