Schedule of Works
Name of Work: Electrical Instalation Work for 1000KVA, 6KV/415V,Transformer and MV Switchgear and other
related equipments for 3rd phase augmentation of IACS Sub-Station at Jadavpur, Kolkata.
Sr.
No.
Description of works
Shifting and Installation of 1000KVA (6KV/415V) indoor type
Dry transformer in the Transformer room etc. complete as
required.
2
TPN-415V. Switch Board Panel: Supply & fixing of 415V, TPN Switch Board Panel fabricated
with 14 gauge M.S. Sheet Metal reinforced with 12 gauge
sheet metal channels & angles as will be required having dead
front totally enclosed, indoor type floor mounted channel
based of size 75mm x 50mm x 5mm self supporting
contineous board. The front portion of the board shall have
individual compartments arranged in tier formation to
accomodate four(4) nos. draw-out type Air-Cicuit Breakers as
stated below. The back portion of the board shall contain
common Bus-Bars (TPN) at the mid portion. Two(2) ACBs of
upper tier and two(2) ACBs of lower tier will be connected with
the common Bus-Bars through connecting Bus-Bars where
other end of the ACBs shall be kept ready for termination with
required size & numbers of 3½ core PVC/Sl-Ar. Cables. The
Bus-Bar and all other connecting bars including outgoing /
incoming live terminals shall be protected to prevent accidental
contact while carring out maintenance work. All the ACBs shall
have its own instrument panel at some suitable location on the
front side of the board to display voltage/ current etc.
Unit
1
no.
IA
CS
1
Qty
Details of components: i) ACB's: -a) 2 nos. 1600A / 415V / 4 Pole manually operated /
Drowout type Cat no.
Make: L&T Ltd.
b) 2 nos 800A/415V/4 Pole manually operated / Drowout type
Cat no. Make: L&T Ltd.
ii) Bus-Bars: - Common ( 3X2000A + 1X1000A) connecting
(3X1600A + 1X800A)x2 and (3X800A + 1X400A)x2 of
Electralytic copper having density of current 1.5A/sq.mm.
iii) Support Insulators: - Drum type FRP/Epoxy of adequite size of
1100V rating
3
Supply & Laying of 11KV grade(E) XLPE insulated and PVC
sheathed Aluminium conductor armoured HT Power cable
conforming to relevant IS of following size in the existing
masonry open duct filled with sand bricks etc. which will
required to be taking out from the trench and refiling the same
after laying of cable etc. complete as required.
a)
3 core X 185mm²
1
set
20
Mtr.
Rate (Rs)
Total Amount
(Rs)
4
Supply & laying of 1.1KV grade PVC insulated and PVC
sheathed/XLPE armoured Power cable in the existing masonry
open duct as required.
a) 3½C X 400mm²
5
Mtr.
Supplying and making INDOOR cable end termination with
heat shrinkable jointing Kit (M-Seal/Recheme) complete with
all accessories including copper lugs (Heavy duty), Heavy duty
brass compression gland, suitable for folowing size of 3 core
XLPE (E) aluminium conductor cable of 11 KV grade as
required.
i) 185sq.mm.
2
set
Supplying and making end termination with Heavy duty brass
compression gland including heavy duty copper socket
(Dowell's) for following size of PVC insulated and PVC
sheathed armoured aluminium conductor cable 1.1V grade as
required.
i) 3½C X 400mm²
20
sets
CS
6
200
7
Earthing:
7.1 Earthing with copper earth plate 600mmX600mmX3mm thick
including accessories and providing masonary enclosure with
cover plate having locking arrangement and watering pipe etc.
(but without charcoal or coke and salt) complete as per
specifications attached herewith.
sets
7.2 Extra for using salt and charcoal for G.I. or copper plate earth
electrode
as
per
specifications
attached
herewith
(Charcoal=96 Kg & salt=5 Kg for each set).
4
sets
7.3 Providing and fixing 25mmX5mm coppr strip in 40mm dia G.I.
pipe from earth electrode as per specifications attached
herewith.
40
mtrs.
7.4 Providing and fixing 25mmX5mm copper strip on surface or in
recess for connections etc. as per specifications attached
herewith.
40
mtrs.
7.5 Providing and fixing earth bus of 50mmX5mm copper strip on
surface for conections etc. as required.
2
mtr.
8
1
Job
IA
4
Miscellenious / Supporting work for the above noted
installation work.
Total
Note: The work shall be carried out as per current CPWD
specifications unless otherwise specified/ decision of the
Engineer-in-Charge.