State Plan-CARWSS to Elappara at Idukki District-Supply and Erection of CF pump set

OD91221/2026-2027: Supply and erection of lower speed (1500 rpm) CF pump set with the following specification 1. Pump -Supply, erection, testing and commissioning of KWA pre-qualified reputed make Horizontal Split Case Centrifugal Pump with Bronze/SS impeller, SS shaft and CI pump casing with suitable type base plate with coupling, coupling guard, foundation bolts & nuts etc. complete suitable for coupling the pump and motor above the base plate etc. complete including providing suitable concrete foundation including cost of cement sand and metal etc. complete, The duty condition is as follows: Discharge 108 LPS, Total head: 171m. 2. Motor: Supply, erection, testing and commissioning of KWA prequalified reputed make horizontal solid shaft foot mounted TEFC squirrel cage induction motor suitable for the above pump working3 phase 50 Hz AC supply, working voltage 3.3 kV. The motor shall confirm to IE2/IE3 as per IS12615-2018 including providing suitable concrete foundation including cost of cement sand and metal etc. complete For 3.3 kV motors digital motor protection relay shall be included in starter as per present CEA regulations. Flexible coupling shall be used for coupling of pumps and motors. 3. Starter: Supply, erection, testing and commissioning of suitable rating FCMA / SCR soft starter. If the available space is not sufficient starter may be made in two or more units to suit (eg. one main panel with main vacuum contactor, load break switch and one bypass unit). Starter suitable for the above motor with over voltage and under voltage protection, single phase preventer, over load relay with motor protection relay with main contactor and bypass contactor as per CEA regulation and code of practice etc. complete including connecting the outgoing VCB to the starter at the substation. 4. Panel board suitable for operating the pump set : Supply, erection, testing and commissioning of cubical type floor mounted MS fabricated dust and vermin proof common control panel board consisting of 1 No. suitable capacity VCB as incomer with required protection as per rules and 2 Nos of suitable capacity VCB as out going one for motor and another for capacitor providing suitable size Aluminium bus bar inter connect the above VCBs and fitted with 3 Nos of indicator lamps, 1 No. volt meter with selector switch, 1 No. Ammeter with selector switch etc. Complete and provided with a common earth bus for the entire panel and inter connect with the VCBs as per CEA regulation and code of practice. The panel shall be fitted on a common base frame on suitable foundation and necessary alteration in the current unit may be made for connecting the new VCB panel to existing VCB panel. A separate panel for HT capacitor operation, including vacuum contactor, HRC fuse, and associated controls, ensuring that capacitor supply is given only after motor starting to be supplied and installed. 5. Cabling work: Supply, laying, testing and commissioning of suitable size XLPE power and control cables for the above pump set from main panel to bypass unit, panel board to starter and from starter to motor considering energy conservation . 6. Earthing: Supply of all materials and providing suitable earthing by using suitable , size pipe/plate earthing GI /copper strip buried in ground and giving double earthing to motor, starter ,panel board etc. as per IE standards. 7.Capacitor : Supply , erection , testing and commissioning of heavy duty APP capacitor for the motor to get a power factor above 0.95. The capacitor shall confirm to IS 2834. 8.Valves: Supply of suitable size best quality heavy duty ISI marked CI double flanged sluice valve and Non return valve with suitable pressure rating. Fitting of valves shall include proper RCC support I especially for Non return valve. In case of positive section pump set sluice valve should be in suction as well as delivery sides for easy repair works. For ease of operation, considering the high capacity of the pump a suitable electrical actuator for the delivery valve provided 9. Suction and delivery pipe connection: supply and fitting of suitable size best quality GI/MS pipe of thickness not less than 8mm for a total length of 10 m. suitable for the above pump set and suitable size foot valve and connecting the suction pipe and valve with suitable flanges, nut and bolts IR sheet etc. complete and connecting the delivery side of the pump with the valves and suitable specials to connect with the pumping main. If the dia. of section pipe is above 80 mm CI pipe & specials shall be provided. Warrranty period shall be 5 Years . (The acual head to be arrived by the contractor). Size of delivery pipe: 400mm DI K9. Length of pumping: 2090m.The work also includes provision for dismantling the existing pump, motor, starter, cables, associated panels and foundation blocks