REPAIR AND MAINTENANCE OF LT PANELS, CONTROLS, CONTACTORS ETC IN CENTRAL AC PLANT AT TECHNICAL AREA AT CVRDE AVADI

Amount

M&L for disconnectiong electrical connections, Deep cleaning with clening materials and removing the defective lugs and glands from the Central AC Plant LT panels complete and Supply and fixing new lugs and glands suitable sizes and re-connection complete LT panel and including the following works :- (a) Writing of incoming and outgoing MCCBs/MCBs.(where to supply/feeding) (b) Cleaning of LT panels complete with help of Blower with cleaning materials. (c) Replacement of LT panel board foundation nuts, bolts and washers etc., (d) Replacement of interconnection of LT panels complete with suitable size copper cable complete. (e) Tighning of all incoming and outgoing cables from the MCCBs. (f) Replacement of un-serviceable MCCBs/MCBs/Contactors/Relays/HP/LP cutouts/Single Phase Preventors/ OLPs etc., (g) LT Panels locations are under :- (i) NC-I, (ii) NC-II, (iii) NC-III, (iv) P-11, (v) KRC (vi) EMI/EMC (vii) COVETEC (viii) SIMULATOR. (ix) DG Panels - 02 Nos. Note :- The Spares mentioned in Item No 1(f) measured and paid separately under respective items below.

Taking down old unserviceable MCCB any capacity and any pole complete without damaing anyother eqpts.

Taking down old unserviceable MCB any capacity and any pole complete without damaing anyother eqpts.

M & L for MCCB 4 Pole, 415 V, Adjustable type, 400 Amps with breaking capacity 36 KA fixed in existing cubicle panel board including drilling holes in cubicle panel, making connections, etc. as required.

M & L for MCCB 4 Pole, 415 V, Adjustable type, 350 Amps with breaking capacity 36 KA fixed in existing cubicle panel board including drilling holes in cubicle panel, making connections, etc. as required.

Providing and fixing following rating and breaking capacity and pole MCCB with Fixed type in existing cubicle panel board including drilling holes in cubicle panel, making connections, etc. as required.

M & L for MCCB 3 Pole, 415 V, fixed type, 125 Amps with breaking capacity 16 KA fixed in existing cubicle panel board including drilling holes in cubicle panel, making connections, etc. as required.

M & L for MCCB 3 Pole, 415 V, fixed type, 63 Amps to 100 Amps with breaking capacity 16 KA fixed in existing cubicle panel board including drilling holes in cubicle panel, making connections, etc. as required.

Supply and fixing 415V, 3 pole, 10KA 'C' curve miniature circuit breaker (MCB) of following poles and current carrying capacity in the LT Panels complete with connection with lugs, testing and commissioning.

(a) MCB 16 to 32 Amps,

(b) MCB 63 Amps,

(c) MCB 100 Amps,

Supply and fixing 415V, double pole, 10KA 'C' curve miniature circuit breaker (MCB) of following poles and current carrying capacity in the LT Panels complete with connection with lugs, testing and commissioning.

(a) MCB 16 to 32 Amps,

(b) MCB 40 to 63 Amps,

Supply and fixing 415V, single pole, 10KA 'C' curve miniature circuit breaker (MCB) of following poles and current carrying capacity in the LT Panels complete with connection with lugs, testing and commissioning.

(a) MCB 6 to 32 Amps,

Supply and fixing 415V, four pole, 10KA 'B' curve miniature circuit breaker (MCB) of following poles and current carrying capacity in the DB complete with connection testing and commissioning.

(a) MCB 16 to 32 Amps,

(b) MCB 40 to 100 Amps,

Supply and fixing of Power Contactor 32 Amps, 415 volts, with integrated auxillary contacts, Power terminals screw terminals complete with both ends suitable size copper lugs complete.

All as per item No 12 here-in-before Capacity 38 Amps

All as per item No 12 here-in-before Capacity 45 Amps

All as per item No 12 here-in-before Capacity 63 Amps

Supply and fixing of Single Phase Preventor, 415volts, including both end connections complete.

Supply and fixing of Push Button with NO/NC

Supply and fixing of Indicator Lamps (Red/ Yellow/ Blue)

S & F Ammeter, digital type, three phase, 200 amp with suitable CT's complete

S & F Over Load Protection (OLP) Relay, 10 Amps, 415volts

S & F Over Load Protection (OLP) Relay, 25 Amps, 415volts

S & F Over Load Protection (OLP) Relay, 32 Amps, 415volts

S & F Elmax Connector Single pole 40 Amps,230 volts

S & F Elmax Connector Single pole 63 Amps,230 volts

Supply and fixing of DOL Starter suitable for upto 7.50HP motor.and incl both end connection with suitable size copper lugs complete.

Supply and fixing of Star Delta Starter suitable for upto 10HP motor.and incl both end connection with suitable size copper lugs complete.

Dismantling of unserviceable cable tray and Supplying and fixing / hanging etc., of following size of perforated Hot Dipped Galvanised Iron cable tray (Galvanisation thickness not less than 50 microns) with perforation not more than 17.5%, in convenient sections, joined with connectors, suspended from the ceiling with G.I. suspenders including G.I. bolts & nuts, etc. as required

(a) 900 mm width X 62.5 mm depth X 2.0 mm thickness

(b) 300 mm width X 62.5 mm depth X 2.0 mm thickness

M & L for Earthing complete with galvanised steel earth plate electrode 60×60cm.× 6mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less'than 1.5 metres below normal ground level, connected to galvanised earth lead / strip 32 mm X 6 mm thick by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 connected to earthing test point all as specified or indicated including testing on completion

M & L for 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 32 mm X 6 mm thick galvanised iron strip.

Supply and fix in repair and replacement of PCB (Invertor tye) suitable for 1.50TR capacity Split Type Air-Conditioner and incl testing complete.Make : GODREJ/BLUE STAR/LG/CARRIER/VOLTAS

All as per Item No 33 here-in-before 2.00 TR Capacity Split type ACs.

SRI LAKSHMI ASSOCIATES

EASHWAR ELECTRICALS