Conversion and enhancing the capacity of Main panels, Conversion into modular switch boards to students rooms in Brahmaputra, Godavari, Narmada, Saraswathi and Tapti Hostels in IIT Madras

Amount

Wiring for light point/ fan point/ exhaust fan point/ call bell point with 1.5 sq.mm FRLS PVC insulated copper conductor single core cable in surface / recessed medium class PVC conduit, with modular switch, modular plate, suitable GI box and earthing the point with 1.5 sq.mm FRLS PVC insulated copper conductor single core cable etc. as required.

Group B

Wiring for circuit/ submain wiring alongwith earth wire with the following sizes of FR PVC insulated copper conductor, single core cable in recessed medium class PVC conduit as required. The charges inclusive of chase cutting of wall using cutting machine including plastering with necessary cement, sand & bricks making the wall surface in good condition

2 x2.5 sq.mm + 1 x 2.5sq.mm earth wire

2 x4.0 sq.mm + 1 x 4.0sq.mm earth wire

4x10 sq.mm + 2x10 sq.mm earth wire

Supplying and drawing following sizes of FR PVC insulated copper conductor, single core cable in the existing surface/ recessed steel/ PVC conduit as required.

1 x 1.5 sq. mm

Supplying and fixing of following sizes of medium class PVC conduit along with accessories in surface/recess including cutting the wall and making good the same in case of recessed conduit as required.

Supplying of following size/ modules, GI box/surface box alongwith modular base & cover plate for modular switches in recess etc as required. The charges inclusive of removing the existing wooden boards and fix the new GI box in concealed on wall with finishing the wall with plastering to match with the existing finish/colour.

1-3 Module (100mmX75mm)

4 Module (125mmX75mm)

6 Module (200mmX75mm)

8-10 Module (125mmX125mm)

Supplying of following modular switch/ socket on the existing modular plate & switch box including connections but excluding modular plate etc. as required.

5/6 amps switch

15/16 amp switch

3 pin 5/6 amp socket outlet

6 pin 15/16 amp socket outlet

Supplying and fixing modular blanking plate on the existing modular plate & switch box excluding modular plate as required.

Supplying and fixing 100watts stepped type electronic fan regulator on the existing modular plate switch box including connection but excluding modular plate etc. as required.

Supplying and fixing 4 way surface/ recess mounting,double door vertical type, 415 volts, TPN MCCB distribution board of sheet steel, dust protected, duly powder painted, inclusive of 200 amps tinned copper bus bar, common neutral link, earth bar, din bar with provision of following MCCB/MCBs interconnection between incomer MCCB and bus bars as required .The charges shall inclusive first class platering painting works to match with existing finishing of the wall.

Incomer

125 amps, 16 KA rating, 4 Pole MCCB- 1 No.

Outgoings

32-40 amps, 10 KA rating, 3 Pole MCB- 4 Nos.

Dummy sheets for the rest of the ways

Supplying and fixing 6 way(4+18), double door type horizontal type three pole and neutral, sheet steel, MCB distribution board, 415 volts, on surface/ recess, complete with tinned copper bus bar, neutral bus bar, earth bar, din bar, interconnections, powder painted including earthing etc. as required with following provision of MCBs

Incomer

32-40 amps, 10 KA rating, 4 Pole MCB- 1 No.

Outgoings

6- 20 amps, 10 KA rating, SP MCB- 18 Nos.

Dummy sheets for the rest of the ways

SITC of Flexy DB TPN 2 rows of 13 module MCB DB metallic double door protection with C curve MCB's

Incoming:

1 No.32 amps TPN MCB

Outgoings:

6 Nos.6/10 A SP MCBs

40 amps 4 pole power contactor(Make:Legrand)-2 Nos

QT 11 24 hours time switch-2 Nos.

Dummy sheet for rest of the ways.

Supplying and fixing DP sheet steel enclosure on surface/ recess along with 25/32amps 240 volts "C" curve DP MCB complete with connections, testing and commissioning etc. as required.

Supplying and fixing TP sheet steel enclosure on surface/ recess along with 16/25/32amps 415 volts "C" curve TP MCB complete with connections, testing and commissioning etc. as required.

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

Earthing with copper earth plate 600 mm x 600 mm x 3 mm thick including accesoreis, and providing masonary enclosure with SFRC cover plate having locking arrangement and watering pipe of 2.7 metre long etc with charcoal or coke and salt as required.

Providing and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required.

Providing and fixing 6 SWG dia G.I. wire on surface or in recess for loop earthig along with existing surface/ recessed conduit/ submain wiring/ cable as required.

Laying and fixing of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size on cable tray/wall as required.

Upto 50 sq. mm (clamped with 1mm thick saddle)

Laying of one nuber PVC insulated and PVC sheathed/XLPE power cable of 1.1 KV grade of following size direc in ground including excavation sand cushning protective covering and refilling the trench etc as required.

Upto 35 sq. mm

Above 185 sq.mm and upto 400 sq.mm

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 35 sq. mm (38mm)

3 core 2.5 sq.mm copper cable

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:

250A, 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)- 10 Nos.

250A TPN MCCB (36kA) - 1 No.

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

MDB as described above.

Supply of following size of 1.1kv grade multicore aluminium conductor XLPE insulated and PVC sheathed armoured cable as per IS : 7098:1988 with upto date amendments.

3.5 core, 240 Sq.mm.

3.5 core, 150 Sq.mm.

3.5 core, 95 Sq.mm.

3.5 core, 70 Sq.mm.

3.5 core, 35 Sq.mm.

Supply of following size of 1.1kv grade multicore copper conductor XLPE insulated and PVC sheathed armoured cable as per IS : 7098:1988 with upto date amendments.

4 core, 2.5 Sq.mm.(external lighting)

5 core, 10 Sq.mm.(external lighting)

Supplying and making straight through joint with heat shrinkable kit including ferrules and other jointing materials for following size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 kV grade as required.

3.5 core, 150 Sq.mm.

3.5 core, 240 Sq.mm.

3.5 core, 95 Sq.mm.

3.5 core, 70 Sq.mm.

3.5 core, 35 Sq.mm.

Supply of 1x 70 sqmm tined copper conductor of High Voltage Shielded Cable (HVSC), high integrity low impedance cable.

Providing and making of maintenance free Tripod earthing pit made of ground enhancing material (GEM) and copper bounded ground rod (3No.) of size 5/8" and 10' long and one earth rod clamp. The approved make will be ABB/ASHLOK/LPI or equivalent make

Supply fixing, testing commissioning of Advance air terminal (Interceplor,terminal lightning ,ESE Delta 25 with aluminium mast (4 mtrs),guying kit 4MV height with grips complete as required. ABB/ASHLOK make )

Supply fixing, testing commissioning of lightning transsient event counter(LECTV) in suitable weatherproof box (IP-67) Along with testing clamp etc, complete as required.

Providing and fixing of test link in weather proof 1.6 mm thick MS box of approved make & design

Charges for preparation of as fitted drawings 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.

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

TPN/SPN MCB DBs with incoming and outgoing MCBs

Removed wooden switch boards with switches/sockets/regulators

PRIYA ENTERPRISES ELECTRICALS