DG Power Supply to Guest House

01 no x 3 ½ core x 185 Sqmm Al. PVCA/XLPE cable and 01 nos. of 8 SWG tinned copper earth wire. (From Auditorium main panel to Proposed Change over panel to be installed in feeder pillar panel room)

Main Change over panel (Located in NISER panel room) The panel will be wall mounting type and will contain the following items: 1. 630A, 04 pole Changeover Switch – 01 no. 2. 400A TPN SFU with Fuse – 01 nos. (For incomer) 3. 250A TPN SFU with Fuse – 01 no. (Outgoing) 4. 125A TPN SFU with Fuse – 02 nos. (Outgoing) Note: 1. The connection and placement of the above items is to be done as per the circuit diagram will be given by IOP. 2. All connections inside the panel is to be made by suitable copper bus bars of proper ratings. 3. There should be sufficient length of Copper Bus Bar and end termination space for connection of the following cables: Incomer- 1- 2x185Sqmm XLPE, Armored, 3 ½ Core cables (From Auditorium main Panel) Incomer -2 – existing 1x 185Sqmm XLPE, Armored, 3 ½ Core cables. (From Feeder Pillar Panel), to be disconnected from the Feeder Pillar panel and to be connected to the changeover panel within the scope of this job. Outgoing – 1 - 1x 185 Sqmm XLPE, Armored, 3 ½ Core cables (To Guest House) to be disconnected from the Feeder Pillar panel and to be connected to the changeover panel within the scope of this job. Outgoing – 2 – existing 2x35Sqmm XLPE, Armored, 3 ½ Core cables, (Street Light), to be disconnected from the Feeder Pillar panel and to be connected to the changeover panel within the scope of this job. Gland plates with required gland holes are to be provided on both sides of the box. The make of Change over switch, TPN SFU should be of L&T/ Siemens or approved equivalent of the same

The panel will be wall mounting type and will contain the following items: 1. 400A TPN SFU with Fuse – 01 nos. There should be sufficient length of Copper Bus Bar and end termination space for connection of the following cables: Feeder-1- 04x185Sqmm cable Feeder-2-03x185Sqmm cable Feeder-3-02x185Sqmm cable Gland plates with required gland holes are to be provided on both sides of the box. The make of TPN SFU should be of L&T/ Siemens or approved equivalent of the same

3 ½ core x 185 Sqmm Al. PVCA /XLPE cable

Rearrangement of the existing 09x185Sqmm cables in the trench of Auditorium main Panel to facilitate the end termination of those cables and laying of the above mentioned new cables. For the same job the following points has to be carried out within the scope of this job: 1. It will be required to excavate the soil (Appx. 50 Cumtr.) outside panel room to facilitate the drawing of the existing 09 cables to outside and again reinserting the same into the trench along with the new cable. 2. The total labour required for the same, the tools, and any other items required for this job is within the scope of this job. 3. The excavation of soil has to be carried out with utmost care and slowly to avoid any type damage to the pile of cables lying under the soil at the same place. 4. The existing 09 nos. of cables are to be re-laid inside the trench to be drawn on the wall (2mtr. Height) near auditorium panel providing suitable “C” type GI flat with GI clamps and to be connected to the three 400A TPNs mentioned in item no.2.5. 5. Necessary cuttings in Chequered plates of the trench for cable entry/exit is included in the scope of this job. Bidders are advised to visit the site and access the quantum of job before quoting for the same.