Replacement of by conversion of SFU panel into MCCB panel at Taramani guest house in IIT Madras

Amount

Supply, Installation, Testing & commissioning of Main LT panel/ Capacitor Panel/ Main distribution panels/ sub- distribution panels fabricated out of 2 mm thick CRCA sheet steel in cubicle formation, compartmentalized, from 3b consutruction, free standing floor mounted, dust and vermin proof with reinforcement of suitable size angle iron, channel, `T’ sections and/ or flats wherever necessary. 1.6 mm thick CRCA sheet steel shall be used for final distribution panels. 3 mm thick cable gland plates shall be provided on top as well as at the bottom of the panels. Panels shall be treated with all anticorrosive process before powder coating as per specifications and final approved shade. 2 No. earthing terminals shall be provided for all distrtibution panels. Panels shall be suitable for 415V, 3 phase, 4 wire, 50 HZ supply system. Lifting hooks shall also be provided in case of large panels. Approval shall be taken for each panel in the form of shop drawings before fabrication. Galvanised hardwares with zinc passivation shall be used in fabrication of panels

Incomer-1

Incomer shall have following:

400A, 4-pole, MCCB (36KA) (microprocessor based with inbuilt S/C,O/L & inbuilt E/F releases.).

Incomer-2

Each shall have following:

400A, 4-pole,MCCB (36KA)(microprocessor based with inbuilt S/C,O/L & inbuilt E/F releases.)

Bus Coupler

Each shall have following:

400A, 4-pole,MCCB (36KA)(microprocessor based with inbuilt S/C,O/L & inbuilt E/F releases.)

Metering:

Multifunction Digital meter with provision of RJ 45 port to connect the LAN and can confugure with the existing software-2 Nos.(1 No each on incomer-1 & 2)

Suitable ratio, CL-1, 15VA, Cast Resin CTs for Metering.

Set of RYB phase indicating lamps with 2A control MCBs.

Electrical/Mechanical interlocking shall be provided between incomers and bus coupler.

Busbar

400A, TPN copper, colour coded bus bars suitable for 415V, 50Hz (after derating).

Outgoing Section- 1

125A TPN MCCB (36kA)- 8 Nos.

200A TPN MCCB (36kA) - 3 No.

Provison of additilnal chamber to accommodate existing 160-250 amps 4 Pole MCCB from the old panel including required interconnection copper bars/cables.

Remove, relaying and fixing of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size on wall surface as required

Upto 35 sq. mm (clamped with 1mm thick saddle)

Above 95 sq. mm and upto 185 sq. mm (clamped with 25/40x3mm MS flat clamp)

Above 185 sq. mm and upto 400 sq. mm (clamped with 40x3mm MS flat clamp)

Supplying and making end termination with brass compression gland and aluminium lugs for alu cables and copper lugs for copper cables following size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 KV grade as required.

3½ X 25 sq. mm (28mm)

3½ X 35 sq. mm (32mm)

3½ X 70 sq. mm (38mm)

3 X 95 sq. mm (38mm) Each

3 X 120 sq. mm (45mm) Each

3 X 150 sq. mm (50mm) Each

3½ X 240 sq. mm (62mm)

Supplying and installing following size of perforated pre-painted M.S. cable trays with perforation not more than 17.5%, in convenient sections, joined with connectors, suspended from the ceiling with M.S. suspenders including bolts & nuts, painting suspenders etc as required. The charges inclusive of wall/ceiling opening with neat finishing.

150 mm width X 50 mm depth X 1.6 mm thickness

300 mm width X 50 mm depth X 1.6 mm thickness

Supplying and installing following size of Hot Dipped Galvanised Iron cable tray cover with 25mm on each side using 1.6mm thick (Galvanisation thickness not less than 50 microns) including G.I. bolts & nuts, etc.as required.

150mm width Tray

300mm width Tray

Supply & Installation of following safety accessories after completion of work.

Treatment chart framed in Tamil, Hindi and English directly fixed on to the wall with necessary screws etc.

Class B- 1000mm width X 2.5mm thick 11KV rated ISI marked rubber mats to be laid in front of the panel boards up to the edges. All mats shall be resistant to acid, oil and low temperature and shall be identified with respective class symbol.

First aid box complete medical kit.

Fire bucket with Stand-2 Nos. with sand & water

Charges for preparation of as fitted drawings for both old & new building and other required documents for obtaining the safety certificate from the CEA. The 3 sets hard copy with safety certificate should be submiitted to this office along with soft copies in the from of CD and pen drive 1 each)

BUYBACK

Less buyback of following accessories after erection of new items as is where is conditons. The removed item must be cleared from the site on daily basis form the campus. The unused items should be on safe disposal from the campus/outside the campus. The rate quoted will be negative value for buy back items.

250 amps LT panel comprising with copper bus and 2 x 250 amps Fuse switch as incomers and 4-8 nos. of 63 amps fuse switches as outgoings

400 amps LT panel comprising with copper bus and 2 x 400 amps Fuse switch as incomers and 4-8 nos. of 63 amps fuse switches as outgoings

ESSENN POWER CONTROLS PVT LTD

Delhi Electrical Construction

SS Enterprises Electricals