Formation of leading channel Desilting of infiltration wells Allied works for 8 Nos of CWSS in Tirunelveli District

Formation of leading channel for diverting water from water flowing area of the river to fare away infiltration wells.Earth work deploying earth moving machineries for desliting channel and forming bund on either side and depositing the earth on banks including jungle clearance etc, complete. Having width up of 3m.

Desilting light or sandysoil or silt from infiltration wells below water level including the charges for special T&P and air compressor etc., complete and as directed by TWAD Board officers.(Infiltration Well No-1 to 3)

Supply and delivery of Open well Submersible pump set conforming to IS 14220 /2002 and as amended thereafter and BEE 3 Star Rated capable of discharging the following duties due to all causes. The pump shall be with stainless steel shaft and dynamically balanced bronze mixed type impeller, CI FG 200 grade casing and brass screws and rotor shall be of copper rod as per IS 613/1984 with ISI mark. The pump suitable for installation in sump with 1.1KV grade 3 core suitable copper flat submersible cable to a length of 15m with necessary cable joints. The non-return valve located at the top of the pump in the discharge outlet connection is to be designed with minimum friction. The pump should be directly coupled to 2880 RPM, three phase, 50 Hz (±5), 415V+6% & 415V-15% squirrel cage induction motor suitable for DOL upto 5 HP , Fully Automatic Air break Star Delta up to 20 HP and Auto Transformer starter for above 20 HP starting and for continuous operation, complete as directed by TWAD Board Officers.(750 lpm X 15 m head)

Labour charges for the erection of submersible pumpset in borewell/openwell including fixing and jointing submersible cable with proper clamps upto the starter to required depth and also fixing of riser pipes to the required depth valves erection clamps, pressure gauges upto the exterior wall of pump room and erection of panel board consisting of TPICN switches starter, Voltmeter, Ammeter, three pilot (indicating) lamps capacitor single phasing preventor, water level guard and laying and jointing the cables and twin earthing as per IE rules etc., complete and testing the pumpset and trail run for 10 days complete and as directed by TWAD Board Officers.(750 lpm X 15 m head)

SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1990 AND AS AMENDED THEREAFTER (10 sq mm. 3 core)

Laying the above PVC INSULATED AND SHEATHED 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1990 AND AS AMENDED THEREAFTER as per IE rules between the Infiltration well pumpset to Panel Board.Inside well

Laying the above PVC INSULATED AND SHEATHED 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1990 AND AS AMENDED THEREAFTER as per IE rules between the Infiltration well pumpset to Panel Board.Inside pumproom

Jointing for all cable including the cost of jointing materials lugs, cable clamps etc, complete.