WORK OF CHEMICAL EARTHING OF DIFFERENT EQUIPMENTS AT MAIN CONTROL ROOM, SLDC, LUCKNOW AND BACKUP CONTROL ROOM, ALDC MODIPURAM, MEERUT AND SUPPLY, INSTALLATION, COMMISSIONING OF DB, CABLE, SWITCHING PROTECTION AT ALDC MODIPURAM, MEERUT

Amount

Earth pit for Main Control Center at Lucknow, U.P.

GI Electrode Earthing with 3m long & 80mm dia with Cyllindrical shape piercing vertically inside the ground as specified standard

Chemical/backfill compound of earthing and doing all other associated work to improve the conductivity

Cutting, Straightening & laying of GI earth strip (50mm*6mm) for earthing of UPS, Panel, Isolation transformers, DG System, IT infrastructure system, GPS lighting Arrestor

Inspection/Earth pit chamber with removable cover for maintenance

Digging, fabrication, cutting, straghtening, laying materials, exothermic welding for permanent bonding in between electrode & earthing system, conductor, electrical equipment or the object to be earthed, backfiling of chemical, testing, painting and all other associated work to complete the earthing work for achieving resistance to less than 2 ohm.

Earth pit for Backup Control Center at Meerut, U.P.

GI Electrode Earthing with 3m long & 80mm dia with Cyllindrical shape piercing vertically inside the ground as specified standard

Chemical/backfill compound of earthing and doing all other associated work to improve the conductivity

Cutting, Straightening & laying of GI earth strip (50mm*6mm) for earthing of UPS, Panel, Isolation transformers, DG System, IT infrastructure system, GPS lighting Arrestor

Inspection/Earth pit chamber with removable cover for maintenance

Digging, fabrication, cutting, straghtening, laying materials, exothermic welding for permanent bonding in between electrode & earthing system, conductor, electrical equipment or the object to be earthed, backfiling of chemical, testing, painting and all other associated work to complete the earthing work for achieving resistance to less than 2 ohm.

Electrical Panel, Cable Etc. Requirement Control Center at Meerut, U.P.

Lighting Distribution Boards (LDB) Type-1 as per specification and as per following details.

Supply, installation, testing & commissioning of front operated front access cubical type indoor duty dead front wall / recess/ surface mounting, totally enclosed dust and vermin proof ( minimum protection IP 54 ) panels with foamed-in neoprene gasketted hinged doors, fabricated from 2 mm thick CRCA with powder coated finish suitable for 415 V, 3-phase, 4 wire, 50 Hz system, suitably for rated insulated copper busbars, interconnections, neutral bar assembly, phase segregating barriers, LED indicating lamps for incoming and outgoing feeders,upto 15% spare space for future expansion, knockouts and gland plates for entry of cables and conduits, which can support all internal wiring having high temperature FR wires, independent terminals for each phase, earthing terminals, space for proctection system as per specification below and including the cost of providing Master key lock on the door and pad locking facility on door as well as at incomer, bonding to earth etc. complete as per specification.

Specification of MCBs shall conform to IEC898/IS 8828 (latest) and, with breaking capacity 10 kA at 415 V AC, current limiting type lower powerloss appx 40 - 70% of the stipulated value and suitable for magnetic releases operating between 3 to 5 times rated current for normal power distribution application and 5 to 10 times rated current for motor application duty, with minimum Electrical endurance of the order of 20000 operation cycles.

Specification of Residual current circuit breaker (RCCB) conforming to IS 12640 shall be provided with 30mA sensitivity and electrically connected rated current capacity MCB for short circuit and over load protection as required

All incomer MCBs of boards /panels shall be connected with NO/NC contacts as specified

All the contactors shall be potential free contacts for remote monitoring and control.

Timers of LDB’s should have compatible with different intervals settings for on/off in one day.

Various distribution boards as given below:

Speccification of DB's shall be as per technical specification.

Lighting Distribution Boards (LDB-2) Type-1 as per specification as per following details.

Lighting distribution board (LDB) unit consisting of 3 compartments with respective incoming 4P MCCBs, 4P MCBs, DP MCB RCCBs/ELCBs, set of contactors if required and outgoing SP MCBs each having indications for incoming & outgoing feeder status e.g. LDB-1 is combination of LDB 1/N, LDB 1/G, LDB 1/U connected to incoming Supplies from Normal, DG set & UPS respectively including a set of time switches as per specifications and as shown on Drawing and as under:(Public area- Concourse & Platform level)

INCOMER

400 A, 415V, Ics= 35 kA, 4P, MCCBs complete with variable overcurrent and short circuit releases : 1 no.

Set of Red/Green ON/OFF indicating lamps : 1 no.

Set of three phase indicating lamps (red, yellow, blue) : 1 no.

Amber healthy trip indicating lamps for above feeders: 1 no.

Multifunction meter along with required CT's etc. for each feeder. : 1 no.

BUSBAR-1

Electrolytic high conductivity tinned copper three phase and neutral busbars rated at 400 A having a maximum current density of 1.4 A per sq mm suitable to with stand symmetrical fault level of 35 kA at 415 V.

All incomers shall be interlocked electrically & mechanically with contactor based automatic changeover system so that only one supply is switched on at a time and fail safe restoration.

OUTGOING

200A, 415V, Ics=35 kA, 4P MCCB’s with variable overcurrent and short circuit releases with multifunction meter along with required CT's etc: 1 no.

Set of Red/Green ON/OFF indicating lamps: 1 no.

Set of three phase indicating lamps (red, yellow, blue) : 1 no.

Amber healthy trip indicating lamps for above feeders: 1 no.

125 A, 415V, Ics= 25 kA, 4P MCCB’s with variable overcurrent and short circuit releases with multifunction meter along with required CT's etc : 2 nos.

Set of Red/Green ON/OFF indicating lamps : 2 nos.

Set of of three phase indicating lamps (red, yellow, blue) : 2 nos.

Amber healthy trip indicating lamps for above feeders : 2 nos.

100 A, 415V, Ics= 25 kA, 4P MCCB’s with variable overcurrent and short circuit releases with multifunction meter along with required CT's etc : 2 nos.

Set of Red/Green ON/OFF indicating lamps : 2 nos.

Set of three phase indicating lamps (red, yellow, blue) : 2 nos.

200A, 415V, Ics=35 kA, 4P MCCB’s with variable overcurrent and short circuit releases with multifunction meter along with required CT's etc: 1 no.

Set of Red/Green ON/OFF indicating lamps: 1 no.

Set of three phase indicating lamps (red, yellow, blue) : 1 no.

Amber healthy trip indicating lamps for above feeders: 1 no.

125 A, 415V, Ics= 25 kA, 4P MCCB’s with variable overcurrent and short circuit releases with multifunction meter along with required CT's etc : 2 nos.

Set of Red/Green ON/OFF indicating lamps : 2 nos.

Set of of three phase indicating lamps (red, yellow, blue) : 2 nos.

Amber healthy trip indicating lamps for above feeders : 2 nos.

100 A, 415V, Ics= 25 kA, 4P MCCB’s with variable overcurrent and short circuit releases with multifunction meter along with required CT's etc : 2 nos.

Set of Red/Green ON/OFF indicating lamps : 2 nos.

Set of three phase indicating lamps (red, yellow, blue) : 2 nos.

Amber healthy trip indicating lamps for above feeders : 2 nos.

63A, 415V, Ics=10 kA, 4P MCB’s(Motor Duty) with indicating lamps on/off to give indications. : 2 nos.

BUSBAR-2

Electrolytic high conductivity tinned copper three phase and neutral busbars rated at 200 A having a maximum current density of 1.4 A per sq mm suitable to with stand symmetrical fault level of 35kA at 415 V.

Supply & retro fitting I/C & O/G , MCCB- 400Amp with box in existing panel, including Bas bar extension etc.

Supply, laying, testing and commissioning of 1100 V grade, armoured, FRLSH, XLPE, Aluminium (Al) / Copper (Cu) Conductor cables on existing trays/ walls/ columns /indoor /trenches including the cost of supports with suitable clamps, saddles, hooks, bolts etc. and including the cost of proper dressing of cables, markers providing identification tags, earthing of glands armouring etc. complete as per technical specifications, as required and as below.

3.5 core, Al, Armoured 185 sqr mm XLPE Cable 02x160Mtr

Cable jointing and termination of cable as per item 1.1 - including cost of supplying and fixing, Crimping lugs(Cu/Al as required), double compression brass glands, insulation tape etc. complete as per specifications and as required.

3.5 core 185 sq mm Al Conductor

Supply , Installation , Testing and Commissioning of 12 way TPN box with MCB-63A incommer and outgoing etc. for building supply distribution.

Eco Power Electricals (BID ID -5620130)