Smart City Thiruvananthapuram Limited Tender

Supply and drawing bare earthing conductors of the following sizes along with wiring/ cables and giving connection as required 4.75 mm copper conductor (6 SWG)

Supply, installation, testing at MTSL and commissioning of 1nos of three phase LT TOD CT METER, 4nos of 125/5A Ctsand giving all necessary connections.

Obtaining power allocation & power connection from KSEB etc. for commisiong of the whole installation in the premises.

Supply and clamping the following size of strips on surface of wall/ parapet/ existing cable tray using clamps fabricated from 20 X 3 mm GI flat duly painted or heavy duty GI spacer saddles spacing of clamps not exceeding 1 m, making good the damages, colour washing etc. as required ( for horizontal run) 25 x 3 mm copper strip

LIASONING

Supply & laying of one number PVC insulated and PVC sheathed armoured aluminium power cable of 1.1KV grade of the following sizes in the existing RCC/ HUME / STONE WARE/ GI/ DWC pipe as required. 3.5 core 95 sq mm

CABLES & LAYING

Fabrication, supply, erection, testing and commissioning of cubicle type, dust and vermin proof, wall mounted, front operated MV Main panel board made out of 16 SWG thick CRCA sheet fully compartmentalised complete with hinged and earthed front doors with name plate, danger notice board, Neoprene mixed beading, removable gland plates made out of 3mm thick sheet steel including all components as shown in the schematic drawing. All opening parts of the panel shall be sealable. Incomer:Consumer service each unit consisting of 3 Nos 125 A fuse unit,125 A Bus Bar, and provision for CT meter with all accessories required for complete installation including its connections and inter connections etc. as per schematic layout. Incomer :- 125A FP ISOLATOR -1no Outgoing: 100A FP MCCB, 25kA - 1no, 40A FP MCB-1no

Supply, laying and clamping of 1 no. PVC insulated and PVC sheathed armoured aluminium power cable, 1.1 KV grade of the following sizes using clamps noted along with the cables, spacing of clamps not exceeding 60cms, making good the damages , colour washing etc. as required. 3.5 core 95 sq mm

Supplying and making end termination with brass compression gland and aluminium lugs for following size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 KV grade as required. 3 1/2X 95 sq. mm (45mm)

Providing maintenance free Earthing system comprises of molecularly bonded copper of 99.9% purity on low carbon steel of 3m length, having a diameter of 16mm with copper coating thickness of 254 microns with fault current withstand capability of 13KA rms value for 1second and Ipeak of 31KA. Universal Clamp (1425RTC) made of SS304 for clamping. Earth enhancing compound is used for improving the soil conductivity. The material shall be mineral inert to subsoil and shall not pollute the environment and non corrosive to earth rod. The material should have a resistivity less than 0.2Ωm. It should be free from hazardous substances The mineral compound is required to have 25kg/pit of the total composite. Polypropylene & Polyethylene (UFE) Earth electrode inspection chamber with heavy duty cover should be used to cover the Earth Rod. The dimension shall be 300mmx300mm with a weight bearing capacity of 5000KG.

Supply and installation of 30cm copper Earth Bench including connections as required.

EARTHING