Replacement of LT panel with bus bar arrangements and associated

Amount

Dismantlling of Existing 415V , 50 Hz AC ,Signal FSU type panel having incomer capacity upto 250 Amps and with maximum 20 Nos outgoing of various capacity including disconnecting all the terminals of incming and outgoing cables/wires making temporary power supply arrangement wherever power supply to equipment/unit cannot be disrupted ,shifting /termination of all the outgoing and incoming cables to the newly installed panels, shifting of the dismantal panels to AAI store etc as required (For Switchroom panel)

Essential LT Panel (PTTA) Shifting of panel by mechanical means or any other way from power house premises to existing switch room (inside terminal building) & Installation, Testing and Commissioning in existing switch room of cubicle type LT panel( IP-42 for indoor panel) suitable for 415V+/-10%, 3 Phase, 4 wire 50 Hz AC supply system. The panel consisting of as below:- Dimension :- Panel is in two part. Each part having 2200mm(Height) x 1940mm(Front Length) x 800mm (Depth) Incoming: a) 02 Nos. MCCB, 250 Amps, 36 kA, 4 Pole, thermal magnetic release type MCCB (Ics=100% Icu) complete with following accessories: Each Incomer have one set of the following items: Intelligent multi-function digital meter to read V,A,kVA, KW, kVAR, PF, Hz etc with communication facility (RS-485 port). LED display with required Nos CTs, 800/5,15 VA, class 1.0 and control circuit wiring with 2 Amp MCB for controlling. 1 Set of Indication Lamps, LED type, R,Y,B Phase indicating lamp with 2 Amp MCB for controlling. Bus coupler: (i) 4 pole, 250 Amps, 36 KA thermal magnetic release type MCCB (Ics=100% Icu) -1 Nos. (ii) ON-OFF indication lamp - 02 nos. (iii) Panel is interlocked electrically & mechanically (castle key) so that only 3 MCCB's i.e. 2 Incomers + 1 bus coupler to eliminate any possible of accidentally approaching two supplies at one bus section. Outgoing (i) 4 pole, 100 Amps,25 KA thermal magnetic release type MCCB (Ics=100% Icu) - 10 No. (ii) 4 pole, 63 Amps MCB (Ics=100% Icu) - 16 No (iii) 4 pole, 32 Amps, MCB (Ics=100% Icu) - 16 No LED type ON/OFF indication lamp - 16 set. (Each breaker is extended with 1 Set Rotary operating mechanism and 'ON' (Red) indication lamp (LED type) including terminal extension spreaders and 3ph LED Ammeter along with suitable range of CT's including connections etc., as required for all the MCCB's)

Non-Essential LT Panel (PTTA) Shifting of panel by mechanical means or any other way from power house premises to existing switch room (inside terminal building) & Installation, Testing and Commissioning of cubicle type LT panel, IP-42 for indoor panel, suitable for 415V+/-10%, 3 Phase, 4 wire 50 Hz AC supply system. The panel consisting of as below:- Dimension :- 1825mm(Height) x 1850mm(Front Length) x 400mm (Depth) Incoming: a) 01 Nos. MCCB, 250 Amps, 36 kA, 4 Pole, thermal magnetic release type MCCB (Ics=100% Icu) complete with following accessories: Each Incomer shall have one set of the following items: Intelligent multi-function digital meter to read V,A, kVA, KW, KVAR, PF, Hz etc with communication facility (RS-485 port). LED display with required Nos CTs, 800/5,15 VA, class 1.0 and control circuit wiring with 2 Amp MCB for controlling 1 Set of Indication Lamps, LED type, R,Y,B Phase indicating lamp with 2 Amp MCB for controlling. Busbar: TPN aluminium extensible type main bus bars of minimum of 400 Amps. capacity with heat shrinkable coloured sleeves and i/c DMC / SMC bus bars supports at required intervals complete for cross section, size supports & their spacing etc. for withstanding fault level of 36kA capacity for 1 sec. Outgoing (i) 4 pole, 100 Amps,25 KA thermal magnetic release type MCCB (Ics=100% Icu) - 07 Nos. (ii) 2 pole, 25 Amps (Ics=100% Icu) - 12 No LED type ON/OFF indication lamp - 9 set. (Each breaker shall have extended 1 Set Rotary operating mechanism and 'ON' (Red) indication lamp (LED type) including terminal extension spreaders and 3ph LED Ammeter along with suitable range of CT's including connections etc., as required for all the MCCB's)

Supplying and laying 25mm x 5mm G.I.strip at 0.50 metre below ground as strip earth electrod ,including connection/terminating with G.I. nut ,bol,spring ,washer ,etc as required .(Joining shall be done by overlapping and with 2 sets of G.I. nut bolt &spring washer spaced at 50mm)

Earthing with G.I. earth pipe 4.5meter long 40mm dia including accessories and providing masonry enclosure with cover plate having locking arrangement and watering pipe etc. with charcoal/coke and salt as required.

Providing and fixing 6 SWG dia G.I. wire on surface or in recess for loop earthing as required (Double run)

Supplying and laying 6 SWG G.I wire at 0.50 metre below ground level for conductor earth electrod ,including connection /termination with G.I thimble etc as requred

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

Providing and Fixing Earth bus of size 32 x 5mm G.I .Strip all around the switch room wall with G.I C-clamp.

a) Departure

b) Arrival

Installing following size of Hot Dipped Galvanised Iron ladder type cable tray (Galvanisation thickness not less than 50 microns) with perforation not more than 17.5% in convenient section ,joined with connection ,suspended from the ceiling with G.I. suspenders including G.I. bolts & nuts etc. as required (Switch room)

a) 150mm width x 50 mm depth x 3mm thickness

Installing 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 section ,joined with connectors ,suspended from the ceiling with G.I. suspenders including G.I. bolts &nuts etc. as required (roof of terminal building)

a) 150mm width x 50 mm depth x 2 mm thickness

b) 300 mm width x 50 mm depth x 2 mm thickness

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

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

b) Above 35 sq. mm and upto 95 sq. mm (clamped with 25 x 3 mm MS flat clamp)

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

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

Chase cutting of wall including providing 32 mm dia PVC pipe ,MS box ,Phenolic Laminated sheet etc for lowering the following Wires from wall nearly below the trench cover after disconnection if required from the DB/Switch as required 4x10 sq mm =7 nos 2x10 sqmm =2 nos 2x6 sqmm =2 nos

Supply of 3.5 x 240 sq mm XLPE insulated & PVC sheathed armoured aluminium conductor under ground cable of 1.1KV grade conforming to IS:7098(Part-I) with upto date ammendment as per approved make list of AAI

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.

a) 3½ X 240 sq. mm

b) 3½ X 150 sq. mm

c) 3½ X 185 sq. mm

d) 4 X 25 sq. mm

e) 4 X 35 sq. mm

f) 4 X 16 sq. mm