SPL REPAIR/REPLACEMENT OF TRANSFORMER LT PANELS AND CONNECTED ITEMS AT SANJOG CHHETRI VIHAR, RAJEEV SANDHU VIHAR AND NIRBHAY VIHAR JCOS/OR MD ACCN UNDER GE E/M LUCKNOW

Amount

Supply, installing, testing and commissioning in replacement factory made CPRI approved powder coated LT Panel board (Dimention of Cubical / enclosure not less than 1200 mm x 900 mm x 500mm), cubical compartmentalized, out door type double door, plate form mounted, suitable for 415 volts, 3 phase, 4 wire, 50 Hz AC supply system having bus bar chamber with insulated aluminium bus bars four pole installed on porcelain / SMC insulator. The panel shall be dust and vermin proof IP-54 class protection and outer shell made of of 3.15 mm CRCA MS sheet, inner shell made of 2.0 mm thick CRCA MS sheet, 50 x 50 x 6mm thick MS angle iron frame work, the cubical have bottom channel of size 75 x 40 mm duly coated with zink metal coating, front and rear opening type, with apron for cable entry closing locking arrangement including internal wiring with PVC insulated solid, copper conductor FRLS cable, IS-694 marked, 1100 volts grade of appropriate size ( but not less than 2.5 Sqmm) and comprising of the following :-

(a) Incoming :- (i) ACB 4 pole, 800 Amp, 50 KA, 415 Volt AC Horizontal draw out type motorized, front operated with Micro processor based LCD protection release for adjustable over current, short circuit and earth fault protection-01 No (ii) Digital VAF+PF meter with RS 485 CL1 -01No (iii) CTs ratio 800/5 A ,class 1, ISI marked -01 sets of three

(iv) Indicating lamp- 01 set of three (v) Four Pole , Aluminium bus bar 1600 Amps insulated with colour coded heat shrinkable sleeve and shall be mounted on suitable size “F” class insulators.

(b) Outgoing (i) MCCB 4 pole , 250 Amps,50 Hz,415 Volts, 36 KA thermal magnetic release - 05 Nos (ii) MCCB 4 pole , 125 Amps,50 Hz,415 Volts, 25 KA thermal magnetic release - 01 Nos

(c) Platform of Panel. Platform for the panel with PCC 1:4:8 type D-2 with 40 mm graded crushed stone, 15 cm thick in foundation, brick work in CM 1:6 with sub class 'B', old size bricks, rendering 15 mm thick in CM 1:6 on exposed surfaces and 100 mm thick PCC padding 1:3:6, type C-1 using 20 mm graded crushed stone aggregate on top and grouting bolts etc for panel. The platform shall be such that it is of a height 45 cm above the nearest road level.

Note :- (i) All out going feeder shall be connected by cable through suitable size gland plate / glands. (ii) The various feeders shall be indicated by 50 mm size letters in synthetic enamel white paint. (iii) All MCCB with adjustable protection for over load and short circuit and conforming to IEC60947-II/IS 13947-II (Latest Version). The MCCB should have Ics=100%Icu. The MCCBs shall have spreader links and barriers as standard feature of manufacturer

M&L Earthing in replacement complete with galvanised steel earth plate electrode 60cmx60cmx6.0mm thick, burried directly in ground to a depth not less than 2.25 metres deep below ground level with top edge of earth plate not less than 1.5 metre below normal ground level surrounded with adequate quantity of charcoal dust mixed with salt to a packed thickness of 15 cm all around the plate, using GI strip 32 x 6 mm as earth strip electrode bolted or rivetted to earth plate at one end and connected to equipments at another end, GI earth strip encased in and including 40 mm dia GI 'light grade' pipe from upper end of earth plate upto equipments,20 dia bore GI pipe 'light grade' as water pipe from earth chamber to upper edge of earth plate, Test point , GI funnel with wire mesh fixed on water pipe and PCC 1:2:4 type B-1 (using 20mm graded stone aggregate) as in pit chamber and RCC pit cover 50mm thick precast RCC 1:2:4 type B-1, duly reinforced with MS TMT bars 8mm dia @ 100 c/c both ways with 10mm dia MS round bar as in lifting handles, excavation, earth work including laying the GI pipe concealed in floor/wall all as described in electric plate of SSR Part I complete all as specified and directed and testing on completion. Note :- If the desired earth resistance is not found, earthing shall be redone by the contractor at no extra cost to the department.

Diamond Electric Co.

Sai Solar Power

NAVJYOTI ENTERPRISES

M/s Vatsh Raj and co

Mohinder Pal and Sons

ANKIT SHIP REPAIRERS AND SUPPLIERS

Ajanta Associates