AUGMENTATION OF ELECTRIC POWER SUPPLY EQUIPMENT UNDER GE U ELECT SUPPLY DELHI CANTT10

Amount

Supplying, installing, testing and commissioning of Indoor arc flash protected Draw-Out with roll on floor type Vacuum Circuit Breaker Panel, rated for 11kV, 800 Amp, 26.3kA/3-sec, comprising of 01 No. Bus Coupler and 02 Nos. Outgoing VCB Panels for T-72 Sub stn under AGE (U) E/S-I and Top mounted Bus PTs /Line PTs on panel for each bus section, confirming to IEC-62271-200, Internal Arc Classified IAC AFLR – 26.3kA for 1sec, Accessibility Class LSC2B-PM Class, comprising of 800 Amp, continuous rated Copper insulated busbars and droppers in all bus / breaker/ adaptor and and cable chambers, The busbars to be covered with insulating material, The earthing busbar is made of electrolytic copper and it runs longitudinally throughout the switchgear Encapsulated feeder connections IS:3427 and IS:12729. with 02 nos. Rack-In-Rack-Out Handles, structure made from AluZinc/GI/powder coated CRCA sheets to prevent corrosion and rusting. The complete panel including HT and LT chamber with FRLS wiring and acessories shall be manufactured by approved OEM at its own manufacturing in house facility and same will be verified via stage/final inspection. System house integrator / channel partner products are not accepted, complete all as specified, directed and comprising of the followings :- (A) 01 x Bus Coupler Panel, each comprising of :- (i) 11kV, 800 Amp, 26.3KA/3-sec, Draw-Out Vacuum Circuit Breaker as per IEC-62271-100 with roll on floor type Vacuum Circuit Breaker having 03 nos. vacuum bottles of same make as of circuit breaker and panel, motorized spring charging mechanism (230VAC) with integral spring charging handle for manual charging, associated push-buttons, anti-pumping feature, and associated Shunt Trip/Close Coils (24V DC). (ii) Current Transformers 11kV, 300-150/5A Core1: Class 5P10, 5VA, Core2: Class 0.5, 5VA, Core3: Class PS-X - Set of 03 Nos per breaker

(iii) Main Protection Relay shall be numerical IED Relay confirming to IEC-60255, having 04PT Inputs with microprocessor based protection scheme for tripping the breaker on various faults like (a) Synchronism and Energizing Check before bus-coupler closing to prevent un-syncronized mixing of supplies (b) Circuit-breaker-failure alarm. (c) Circuit-breaker-failures and interpanel tripping/blocking signals via GOOSE based peer-to-peer communication, on IEC61850 protocol. The relay shall be fully integrated with the feeder, internally capturing feeder statuses including various status, Bus-Voltage and display the same locally on a built-in back-lit LCD screen with mimic as a Single-Line-Diagram with power & frequency measurements and suitably labelled status LEDs. Relay setting should be possible through inbuilt software or through addtional software supplied with life time software support by the relay manufacturer. (iv) LED Indications - (a) Breaker ON/OFF/TRIP/Spring-Charged (b) Trip Circuit Healthy (v) Control Equipment including :- (a) 01 x TNC Switch, (b) 01 x Local/Remote Switch, (c) 01 x Emergency Trip Push Button, (d) MCBs for AC (e) MCBs for DC (f) Heater Switch with Thermostat - 01 No. (g) 3-pin socket with ON/OFF switch - 01 No. (h) LED Lamp with ON/OFF switch - 01 No.

(vi) Flush mounted Auxillary Protection Relays including (a) Trip Circuit Supervision Relay, (b) Master trip Relay, (vii) 08-Window Annunciator with Hooter to indicate following alarms :- (a) Trip Circuit Failure, (b) Inter-Tripping Fault, (c) Synchro-Check. (d) PT Fuse Failure The Annunciator will be complete with required Acknowledge/Test buttons as required (B) 02 x Outgoing Panel, each comprising of :- (i) 11kV, 630Amp, 26.3KA/3-sec, Draw-Out Vacuum Circuit Breaker as per IEC-62271-100. Vacuum Circuit Breaker having 03 nos. vacuum bottles of same make as of circuit breaker and panel, motorized spring charging mechanism (230VAC) with integral spring charging handle for manual charging, associated push-buttons, anti-pumping feature, and associated Shunt Trip/Close Coils (24V DC). (ii) Current Transformers 11kV, 100-50/5A for 02 outgoing Core1: Class 5P10, 10VA, Core2: Class 0.5, 10VA - Set of 03 Nos. Per breaker (iii) Main Protection Relay shall be numerical IED Relay confirming to IEC-60255, having 04CT Inputs with microprocessor based protection scheme for tripping the breaker on various faults like (a) over-current or earth-fault in any of the three phases, (b) circuit-breaker-failure alarm, (c) interpanel tripping/blocking signals via GOOSE based peer-to-peer communication, on IEC-61850 protocol. (d) Integrted arc flash protection with current and light sensing.

(e)Transformer protection (Marshalling Box and Buchhloz relay). The relay shall be communicable on IEC-61850 GOOSE platform over RJ-45/USB/FO port, and fully integrated with the feeder, internally capturing feeder statuses incl. various status, Line-Current, Breaker On/Off/Spring.Chrgd, Trip Circuit Failure (from TCS relay), Local-Remote etc. and display locally on a built-in back-lit LCD screen with mimic as a Single-Line-Diagram with current measurements and suitably labelled status LEDs. Relay setting should be possible through inbuilt software or through addtional software supplied with life time software support by the relay manufacturer. (iv) Metering Equipment including:- (a) 01 x Digital Voltmeter (Acc.Cl.0.5), 01 x Digital Ammeter (Acc.Cl.0.5), (b) 01 No. Multi-Function-Meter (Acc.Cl.0.5) shall be provided with LCD display for measuring current, voltage, power, power-factor and energy-parameters, Total Harmonic Distortion and Max. Demand Indication, same shall be communicable on ModBus via RS485 port. (v) LED Indications - (a) Breaker ON/OFF/TRIP/Spring-Charged, (b) Trip Circuit Healthy (vi) 08-Window Annunciator with Hooter to indicate following alarms :- (a) OC Trip, (b) EF Trip (c) Trip Circuit Failure, (d) Inter-Tripping Fault, The Annunciator will be complete with required Acknowledge/Test buttons as required

(vii) Control Equipment including. (a) 01 x TNC Switch, (b) 01 x Emergency Trip Push Button, (c) 01 x Local/Remote Switch, (d) MCBs for AC/DC isolation (e) Heater Switch with Thermostat - 01no. (f) 3-pin socket with ON/OFF switch - 01no. (g) LED Lamp with ON/OFF switch - 01no. (viii) Flush mounted Auxillary Protection Relays incl. (a) Trip Circuit Supervision Relay, (b) Master trip Relay (ix) Transformer protection each comprising of :- (a) Oil Temperature high. (b) Winding Temperature high. (c ) Tank oil level low. (d) OLTC oil level low. (e) Buchhloz relay trip or sudden gas and sudden oil pressure relay trip. (f) Pressure relief. Note: Factory testing of VCBs and prior approval of GA drawings from department shall be done before despatching VCBs to site.

Supplying, installing, testing and commissioning of Indoor arc flash protected Draw-Out with roll on floor type Vacuum Circuit Breaker Panel, rated for 11kV, 800 Amp, 26.3kA/3-sec, comprising of 01 No. Bus Coupler and 01 Nos. Outgoing VCB Panels for 01 at ARD Sub stn, 01 ERG Sub stn under AGE (U) E/S-I and Top mounted Bus PTs /Line PTs on panel for each bus section, confirming to IEC-62271-200, Internal Arc Classified IAC AFLR – 26.3kA for 1sec, Accessibility Class LSC2B-PM Class, comprising of 800 Amp, continuous rated Copper insulated busbars and droppers in all bus / breaker/ adaptor and cable chambers, The busbars to be covered with insulating material, The earthing busbar is made of electrolytic copper and it runs longitudinally throughout the switchgear Encapsulated feeder connections IS:3427 and IS:12729 with 02 nos Rack-In-Rack-Out Handles, structure made from AluZinc/GI/powder coated CRCA sheets to prevent corrosion and rusting. The complete panel including HT and LT chamber with FRLS wiring and acessories shall be manufactured by approved OEM at its own mancufacturing in house facility, and same will be verified via stage/final inspection. System house integrator / channel partner products are not accepted complete all as specified, directed and comprises of the followings :-

(A) 01 x Bus Coupler Panel, each comprising of :- (i) 11kV, 800 Amp, 26.3KA/3-sec, Draw-Out Vacuum Circuit Breaker as per IEC-62271-100 with roll on floor type Vacuum Circuit Breaker having 03 nos. vacuum bottles of same make as of circuit breaker and panel, motorized spring charging mechanism (230VAC) with integral spring charging handle for manual charging, associated push-buttons, anti-pumping feature, and associated Shunt Trip/Close Coils (24V DC). (ii) Current Transformers 11kV, 300-150/5A Core1: Class 5P10, 5VA, Core2: Class 0.5, 5VA, Core3: Class PS-X - Set of 03 Nos per breaker (iii) Main Protection Relay shall be numerical IED Relay confirming to IEC-60255, having 04PT Inputs with microprocessor based protection scheme for tripping the breaker on various faults like (a) Synchronism and Energizing Check before bus-coupler closing to prevent un-syncronized mixing of supplies (b) Circuit-breaker-failure alarm. (c) Circuit-breaker-failures and interpanel tripping/blocking signals via GOOSE based peer-to-peer communication, on IEC-61850 protocol. The relay shall be fully integrated with the feeder, internally capturing feeder statuses including various status, Bus-Voltage and display the same locally on a built-in back-lit LCD screen with mimic as a Single-Line-Diagram with power & frequency measurements and suitably labelled status LEDs. Relay setting should be possible through inbuilt software or through addtional software supplied with life time software support by the relay manufacturer.

(iv) LED Indications - (a) Breaker ON/OFF/TRIP/Spring-Charged (b) Trip Circuit Healthy (v) Control Equipment incl. :- (a) 01 x TNC Switch, (b) 01 x Local/Remote Switch, (c) 01 x Emergency Trip Push Button, (d) MCBs for AC (e) MCBs for DC (f) Heater Switch with Thermostat - 01 No. (g) 3-pin socket with ON/OFF switch - 01 No. (h) LED Lamp with ON/OFF switch - 01 No. (vi) Flush mounted Auxillary Protection Relays incl. (a) Trip Circuit Supervision Relay, (b) Master trip Relay, (vii) 08-Window Annunciator with Hooter to indicate following alarms :- (a) Trip Circuit Failure, (b) Inter-Tripping Fault, (c) Synchro-Check. (d) PT Fuse Failure The Annunciator will be complete with required Acknowledge/Test buttons as required (B) 01 x Outgoing Panel, each comprising of :- (i) 11kV, 630Amp, 26.3KA/3-sec, Draw-Out Vacuum Circuit Breaker as per IEC-62271-100. Vacuum Circuit Breaker having 03nos. vacuum bottles of same make as of circuit breaker and panel, motorized spring charging mechanism (230VAC) with integral spring charging handle for manual charging, associated push-buttons, anti-pumping feature, and associated Shunt Trip/Close Coils (24V DC).

(ii) Current Transformers 11kV, 100-50/5A for 01 outgoing Core1: Class 5P10, 10VA, Core2: Class 0.5, 10VA - Set of 03 Nos. Per breaker (iii) Main Protection Relay shall be numerical IED Relay confirming to IEC-60255, having 04CT Inputs with microprocessor based protection scheme for tripping the breaker on various faults like (a) Over-current or earth-fault in any of the three phases, (b) Circuit-breaker-failure alarm, (c) Interpanel tripping/blocking signals via GOOSE based peer-to-peer communication, on IEC61850 protocol. (d) Integrted arc flash protection with current and light sensing. (e )Transformer protection (Marshalling Box and Buchhloz relay). The relay shall be communicable on IEC-61850 GOOSE platform over RJ-45/USB/FO port, and fully integrated with the feeder, internally capturing feeder statuses incl. various status, Line-Current, Breaker On/Off/Spring.Chrgd, Trip Circuit Failure (from TCS relay), Local-Remote etc. and display locally on a built-in back-lit LCD screen with mimic as a Single-Line-Diagram with current measurements and suitably labelled status LEDs. Relay setting should be possible through inbuilt software or through addtional software supplied with life time software support by the relay manufacturer. (iv) Metering Equipment including:- (a) 01 x Digital Voltmeter (Acc.Cl.0.5), 01 x Digital Ammeter (Acc.Cl.0.5), (b) 01 No. Multi-Function-Meter (Acc.Cl.0.5) shall be provided with LCD display for measuring current, voltage, power, power-factor and energy-parameters, Total Harmonic Distortion and Max. Demand Indication, same shall be communicable on ModBus via RS485 port. (v) LED Indications - (a) Breaker ON/OFF/TRIP/Spring-Charged, (b) Trip Circuit Healthy (vi) 08-Window Annunciator with Hooter to indicate following alarms :- (a) OC Trip, (b) EF Trip (c) Trip Circuit Failure, (d) Inter-Tripping Fault,

The Annunciator will be complete with required Acknowledge/Test buttons as required (vii) Control Equipment including. (a) 01 x TNC Switch, (b) 01 x Emergency Trip Push Button, (c) 01 x Local/Remote Switch, (d) MCBs for AC/DC isolation (e) Heater Switch with Thermostat - 01no. (f) 3-pin socket with ON/OFF switch - 01no. (g) LEDLamp with ON/OFF switch - 01no. (viii) Flush mounted Auxillary Protection Relays including. (a) Trip Circuit Supervision Relay, (b) Master trip Relay, (ix) Transformer protection each comprising of :- (a) Oil Temperature high. (b) Winding Temperature high. (c) Tank oil level low. (d) OLTC oil level low. (e) Buchhloz relay trip or sudden gas and sudden oil pressure relay trip. (f) Pressure relief. Notes: (i). Factory testing of VCBs and approval of GA drawings from department shall be done before dispatching of VCBs to site. (ii) Proposed VCBs and Bus Coupler should match with existing VCBs at site. Hence, necessary arrangements such as 11 KV Bus trunking should be done with existing VCBs.

Material & Labour for modification to the existing HT VCB Panel for inserting of New HT VCB and bus coupler at (01 for T 72 Sub stn, ARD, ERG), complete all as specified & directed.

Supplying, laying, jointing testing and connecting XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable (heavy duty) with multistranded aluminum conductors, 11 KV grade, IS:7098 marked, of Size 120 Sqmm 3 Core suitable for HT 11 KV(E) system, laid in trenches / ducts / encased in GI pipe / fixed to pole, including jointing & testing complete all as specified & directed. Note :- Excavation, earth work, cable protection, sand fillings, cable joint shall be measured and paid for separately under respective items of Schedule.

All as per Srl item No. 04 above but of size HT Cable of 240 Sqmm 3 core

Supply and fixing of 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 sqmm to 240 sqmm, complete all as specified & directed.

Supply installation testing and commissioning of Distribution Transformer with OLTC, AVR & RTCC Panel as per IS : 1180 part - I, level (EEL) - II (As per Amnd No.4 as per IS:1180), step down, copper wound 11KV/433 Volts (at no load) AC 3 phase, 50 Hz 1000 KVA capacity, core type, oil immersed naturally air cooled, oil natural air natural (ON/AN) with external cooling tubes, delta connected on primary side (HV) and star connected on secondary side (LV) in accordance with vector group DYn-11 with neutral brought out on secondary side (LV) and having taping at +5% to -15% in steps of 1.25% on HV side to be changed by means of hand operated off load tap changer gear. The maximum temperature rise should not exceed 40 degree Celsius in oil and 45 degree Celsius in HV/LV winding when measured by resistance method after continuous full load run on an ambient temp of 40 degree Celsius transformer shall be of BOLTLESS core design. Transformer shall be double wound, core type with low loss, non ageing, high permeability prime grade crgo with M4 grade or better, perfectly insulated and clamped to minimize noise and vibrations. The transformer shall be IS/IEC 60076 and as per IS:1180 part - I of 2014 marked and shall comprise of the following :- Location:- (T- 72 Sub Stn - 02, ARD Sub stn -01, ERG Sub stn-01)

(a) One cable box on HT side (Primary side) consisting of three nos porcelain bushing with copper rods, complete with nuts and washer with cable glands suitable for reception/taking out 3 core 240 Sqmm, HT 11000 volts grade, XLPE insulated and PVC sheathed, heavy duty (b) One cable box on LT side (secondary side) consisting of four nos porcelain bushing with copper rods, complete with nuts and washers, with cable glands suitable for reception/taking out single core 1000 sqmm, LT 1100 volts grade, PVC/XLPE insulated and PVC sheathed, heavy duty, armoured cables including jointing materials complete. (c) Conservator with filter type drain valve and oil level gauge. (d) De-hydrating breather with first fill of dehydrating agent (Silica Gel). (e) Explosive vent, Thermometer pocket on tank cover, oil level gauge, Oil drain filter valve, at bottom of the tank Lifting ligs,oil filling hole with cap/plug with connection plate complete, Air release valve plug and four nos plain solid cast steel detachable rollers. (f) One no 100 mm dia, dial type thermometer, vapor pressure type, having range 0-120 degree Celsius with metal guard having maximum perimeter temperature reading indicator with re- setting device. (g) Two earthing terminals on tank cover to facilitate fixing of 50x6mm galvanized iron earth strip for earthing of body. (h) Rating plate and terminal marking plate. (j) Extra bushing for neutral in the LT cable box for providing independent set of earthing for neutral. (k) First fill of new and unused transformer oil, IS-335 of 1986 marked, filtered and tested up to 50 KV dielectric strength at 2.5 mm air gap between testing electrodes, specific resistance at 27 Degree Celsius Ohm-om 500 x 10 the power12, water content 50 PPM, Dielectric dissipation factor (tan Deta at 90 degree Celsius) 0.005, Neutralization value mg of KOH/gm of oil 0.03, Inter facial tension N/M at 27 Degree Celsius - 0.04, flash point 140 Degree Celsius and sludge 0.1 % by weight. (l) Providing adequate size and nos of channels, embedded in floor, for movement of transformer.

(m) Transformer losses shall not exceed the loses mentioned in Table 6 of IS: 1180 of 2014 Part- I with energy Efficiency level - II (As per Amnd No.4 as per IS:1180). (n) Oil temperature indicator , winding temperature indicator, marshaling box single window, double floats buckholz replay with alarm and trip contact including connection to existing RMU/VCB relay with PVC insulated PVC sheathed cable galvanized steel strip or wire armoured electric control cables (Heavy duty) with stranded copper conductor of size 1.5 sq mm 10 core 1100 volts grade. Notes :- (i) Rate quoted includes the cost of making and testing of control wiring connection at the Transformer and RMU/VCB for the Temperature alarm/Trip, Gas alarm/Trip. (ii) The Contractor shall arrange the factory visit for the rep of Accepting Officer for testing of transformer before despatch to site. (iii) The Contractor shall submit GA drawings of transformer and get proper approval from Accepting Officer before despatch.

Supply installation testing and commissioning of copper wounded servo type voltage stabilizer, metallic body duly powder coated with lifting hooks four nos, digital display type, relay free smooth and silent operation type Indoor, 3 phase 4 wire AC supply with 50 Hz frequency for automatic operation naturally oil cooled designed (for unbalanced input and unbalanced load) for input variation between 360-480V/380V, 3 phase 4 wire 50 Hz, AC with output voltage stabilized at 380 V ± 2.5% (adjustable) 3 phase 4 wire AC and speed of correction 8 Volts per sec for single phase and 13Volts per sec for Phase to Phase Indoor floor mounted type of capacity 500 KVA, suitable for operation between 0 to 50 degree Celsius ambient temperature and conforming to BIS 9815 : Part –I : 1994 reaffirmed 2009 having following specifications (i) Waveform distortion should be Nil. (ii) Efficiency shall be Not less than 95% on full load. (iii) Response time not to exceed 20 MS. (iv) Immune to load PF & supply frequency variations. (v) Duty cycle continuous 24x7. (vi) Sensitivity (±) 1 % (vii) Following protections should be provided :- (a) Automatic low/high voltage cut off in the output with audio visual alarm cum cancellation and acknowledgment facility. (b) Short circuit protection in each phase with LED indication lamps and with a common MCCB, 4 pole of Make-L&T/Legrand of suitable capacity to trip of the output when the input supply/load goes beyond limits. (c) Single phasing protection (Phase missing/phase reversal alarm and cut off). (viii) Output voltage setting (by potentiometer in AUTO mode & by Raise/Lower push button in manual mode). (ix) Operation Auto/Manual.

All as per Srl item No. 08 above but of 400 KVA capacity. location :- (SVG - 02, ERG First Floor - 01)

All as per Srl item No. 08 above but of 200 KVA capacity. Location :- (TEG)

All as per Srl item No. 08 above but of 150 KVA capacity. Location :- (T & R)

All as per Srl item No. 08 above but of 100 KVA capacity. location:-(TT Cell & TIG)

Supplying, laying, jointing testing and connecting of XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armored, electric power cable (heavy duty) with multistranded aluminum conductors, IS:7098 marked, suitable for LT 1100 Volt system, laid in trenches fixed to pole, including jointing & testing complete all as specified & directed of following sizes:- Note :- Excavation, earth work, cable protection, sand fillings, cable joint shall be measured and paid for separately under respective items of Schedule.

All as per Srl item No.13 above but of size 25 Sqmm 4 core

All as per Srl item No.13 above but of size 35 Sqmm 3.5 core

All as per Srl item No.13 above but of size 50 Sqmm 3.5 core

All as per Srl item No.13 above but of size 70 Sqmm 3.5 core

All as per Srl item No.13 above but of size 95 Sqmm 3.5 core

All as per Srl item No.13 above but of size 120 Sqmm 3.5 core

All as per Srl item No.13 above but of size 150 Sqmm 3.5 core

All as per Srl item No.13 above but of size 185 Sqmm 3.5 core

All as per Srl item No.13 above but of size 240 Sqmm 3.5 core

All as per Srl item No.13 above but of size 240 Sqmm 1 core

All as per Srl item No.13 above but of size 300 Sqmm 1 core

All as per Srl item No.13 above but of size 400 Sqmm 3.5 core

All as per Srl item No.13 above but of size 400 Sqmm 1 core

All as per Srl item No.13 above but of size 630 Sqmm 1 core

All as per Srl item No.13 above but of size 800 Sqmm 1 core

Excavation in trenches not exc. 1.5 m wide and not exc 1.5 mtr deep in soft /loose soil for laying / taking up/ taking down of cables and getting out and leveling of bottom surface to required level, complete all as specified & directed.

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

Removing excavated material (i.e. soil) from site to a distance n. exc 50 mtrs away and depositing where directed at a level n. exc. 1.5 mtr above the starting point, complete all as specified & directed.

Material and labour for river washed and screened, dry sand for filling in trenches below and around underground cables for cushioning of cables etc, complete all as specified in clause 19.75 of SSR Part- and directed, Note :- Only punned thickness of sand cushioning shall be measured & paid., complete all as specified.

Supply and laying un-reinforced precast concrete cable cover, class HV, type 1, flat size 300mmx 180mm x 40mm, complete all as specified & directed.

Supply & fixing sub class B bricks of size 230mmx115mmx75mm having minimum compressive strength 75Kg/Sqcm laid in trenches for cable protection etc with width of brick perpendicular to the length of cable, complete all as specified & directed..

Material and labour for Earthing of Copper earth plate electrode of size 60cmx60cmx3.15 mm thick, buried directly in ground (earth pit not less than 2.1 m below normal ground level) with top edge of earth plate not less than 1.5m below normal ground level, connected to 20×3mm copper strip as earthing lead by means of bolts, nuts, check nuts and washers of galvanized iron or steel as shown in electrical plate No 3 of SSR Part I, connected to earth test point and the equipment on the other nuts and washers of galvanized iron side, complete all as specified & directed including testing after completion. Notes : (a) The unit rates quoted against this item shall be deemed to include the cost of excavation and earth work in any type of soil, common salt & charcoal dust in alternate layers, PCC 1:3:6 as in pit, precast RCC 1:2:4 type B-1 with necessary reinforcement as in cover & frame for pit, funnel, watering pipe 15 mm bore GI pipe light grade, protection pipe 40 mm bore GI pipe light grade etc. (b) The quoted rates shall also deemed to include the cost of earth test point and earth strip/GI lead wire and protection pipe up to 7.5 meter beyond the earth plates electrode.

Material and labour for Earthing complete with galvanized steel pipe electrode, 40mm bore, medium grade, 2.5 meters length, buried directly and preferably vertically in ground with top edge not less than 1.25 meters below ground level connected with GI earthing strip of 32x6 mm dia galvanized iron or steel wire all as shown in Plate No. 2 to the earthing test pointcomplete all as specified & directed including testing after completion. Notes : (a) The unit rates quoted against this item shall be deemed to include the cost of excavation and earth work in any type of soil, common salt & charcoal dust in alternate layers, PCC 1:3:6 as in pit, precast RCC 1:2:4 type B-1 with necessary reinforcement as in cover & frame for pit, funnel, watering pipe 15 mm bore GI pipe light grade, protection pipe 40 mm bore GI pipe light grade etc. (b) The quoted rates shall also deemed to include the cost of earth test point and earth strip/GI lead wire and protection pipe up to 7.5 meter beyond the earth plates electrode.

Supply, installation, testing & commissioning of Advance Maintenance Free environment friendly ring earthing system of dia 350 mm and depth 11 feet. Each set consisting of 3 Nos of 10 feet length, 17.2 mm dia earth electrode made of high tensile low carbon steel circular rods, molecularly bonded cooper on outer surface (minimum copper bonding thickness - 250 microns) with terminals to connect incoming strip in the ground with 3 bags (60 Kg per earthing pit) of environment friendly backfill compound Carbon based, Graphite blend and Portland cement mixed (Approved by Engr in charge) resistivity below 0.15 Ohm meter for high current (for electrical system) as per manufacturing instructions for each 150 x 25 x 6 mm Copper Bar with 4 hole shall be exothermically welded on top to copper bonded rod to make terminal laid in minimum 200 mm dia bore. Making 3 Nos holes of complete earthing set in which each hole should be provided with 100 Kg Bentonite in outer 150 mm part of the hole and inner 200 mm dia fill with back fill material. Manufacturer name shall be embossed on rod. 25 x 3 mm copper shall be buried 20 cm below the ground used to interconnected the earths and to make the ring. The earth pit cover polypropylene (250 mm Top x 340 mm Bottom x 250 mm Height) of 2 Kg weight shall be included in the scope of work including PCC (1:2:4) base block of fitting of pit cover, complete all as specified & directed including testing after completion.

Supply and fixing earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required 20x3 mm copper strip, complete all as specified & directed.

All as per Srl item No. 38 above but 32x6 mm galvanized iron strip.

All as per Srl item No. 38 above but 25x3 mm copper strip.

Supply and fixing Rubber mat of size 1 meter x 2 meter x 19 mm, complete all as specified & directed.

Supply and fixing Rubber mat of size 1 meter x 2 meter x 10 mm, complete all as specified & directed.

Boring of holes under road, pavement, hard standing by trenchless technology using ultra sounding technique and necessary machine including HDPE pipe of 150 mm dia suitable for 0.4 mpa working pressure, complete all as specified & directed.

Notes in respect of Srl item No.44 to 51 here-in-before : 1. All type of certificates and design verification with switch gears (ACB/MCCB) confirming to IS/IEC 61439/ 2011 Part I & II with Short Circuit Test 4000 Amp with breaking capacity 65 KA shall be submitted by the contractor before execution of work. 2. All test certificates shall be carried out from CPRI/ ERDA. 3. All tests as per IEC should from original OEM manufacturer, no any authorization will be accepted from any reputed OEM. 4. Name plate should mention Serial No., Tender ID, CA NO. and Name of the Contractor with manufacturing year. 5. Makes of ACB and MCCB should be same. 6. Breaking/ Making capacity of MCCB should have Ics=100% Icu).

Supply and fixing outdoor type wall mounted Busbar chamber having 04 pole busbar of rating 300 amps fitted with MCCB 200 Amp, 4 pole , 36 KA, 50 Hz as incomer including suitable hole in bus bar for outgoing cable connection including suitable size nut bolt and fastener, complete all as specified & directed.

Material & labour for Shifting of indoor type transformers 800 KVA capacity by disconnecting all electrically and mechanical connection from ERG Sub Stn carefully and Re-installation of same transformer in T&R sec, connecting electrically and mechanically, testing and commissioning, complete all as specified and directed. (Cost of T&P and Man Power shall be deemed included in the quoted rate of this item)

RAVINDRA BROTHERS

mayur enterprises

Leo Air and Power Solution pvt Ltd.

M P TYAGI ENGINEERS AND CONTRACTORS

Sant Construction Co.

B D Raizada Projects Pvt Ltd

GEPS PROJECTS

BHARAT MULTITECH INDUSTRIES PVT LTD

M K ENGINEERS CO.

BHARAT ELECTRICAL TRADERS

MAHINDER PAL CONSTRUCTIONS PVT LTD

AMIT ASSOCIATES

JAY BEE Industries

Vardhman Airport Solutions Private Limited