Supply and erection of 60HP sewage submersible pumpset non clog pumps with motor bed pipeline arrangements and electrical works at sakkimangalam sewage pumping station in zone 1

Amount

Supply and delivery of submersible centrifugal sewage non-clog pumps, vertical spindle type pump , wear resistance with submersible motor for the various duty conditions. Pump shall be capable of handling min 100 mm solid size with sewage specific gravity of up to 1.05. Pump shall be of robust construction, Liquid passages shall be finished smooth and designed as to allow free passage to solids. Pump Impeller should be of Non-clog semi open type , single vane / multi vane preferably contra bloc or vortex impeller design. Double mechanical seal with silicon carbide faces should be provided to protect the motor from ingress of sewage along the shaft. The critical speed of the rotor shall be at least 30% above the operating speed. Pumps should have double bearings between the pump & motor. The bearings life shall be minimum 100,000 hrs of operation with greased for life. Pump should be provided with automatic coupling device including pedestal, duck foot bend, stainless steel guide pipe or related accessories of suitable size to facilitate lifting and lowering into guide rails for easy maintenance. Pump shall be provided with a stainless steel lifting chain conforming to BS 970 Gr 304. Pump speed shall be of 9600 rpm for high duty pumps and 960/1450 rpm for low duty pumpsets. Casing and impeller should be of CI Gr. FG 260:IS210 more preferably with hardened impeller.Shaft should be of stainless steel AISI 410. All the fasteners and bolts shall be of AISI 410.The submersible motor shall be operated with 3ph, 415 V(+or– 10%), 50Hz(+or-5 %) dry induction type. Motor shall be capable of giving rated output without reduction in the expected life span when operated continuously. The rotating assembly shall be dynamically balanced as per standards. The starting current of the motor shall not exceed 200% of rated full load current for Star / Delta or ATS starting under any circumstances . The motor shall be suitable for full voltage star delta / ATS starting. The locked rotor current of the motor shall not exceed 600% of full load current unless otherwise specified. Motor shall be designed to withstand 120% of rated speed for two minutes without any mechanical damage, in either direction of rotation. The motor vibration shall be within the limit specified in applicable standards . Motor should be of IE2, explosion proof compatible for VFD operation together with star-Delta /ATS starter, protection against increase in stator winding temperature (15 deg Celsius), bearing temperature, leakage in the stator housing and terminal box shall be provided and to be suitably interlocked with the control panel for tripping the pump in case of increase in temperature beyond set limit. Insulation class shall be of “Class H” and degree of protection shall be of IP 68 as per IS 4691. Motor shall be suitable for continuous operation in fully submerged or partially submerged condition.The pumpset shall be supplied with power cable of PVC insulated and PVC sheathed, copper, flexible, round type with required conductor size and number of cores as per starting method and of specified length for continuous use under water and air. The control cable of PVC insulated, PVC sheathed, flexible for stator winding temperature sensor 3core x 1.5 sq.mm copper conductor and for bimetallic switches 2core x 1.5 sqmm copper conductor shall be provided. Motor shall be supplied with 10m of round submersible copper cable of suitable size.The non clog submersible pumpset shall be provided with suitable starter control panel having all protections as mentioned above. (upto 5 HP - DOL Starter, above 5 HP to 25 HP -Star Delta Panel and beyond 25 HP shall be ATS) above 15m upto 20 m head Discharge 400 to 500 M3/hour above 20m upto 25 m head Discharge 400 to 500 M3/hour

Supply and laying of 4x 6 sq.mm PVC armoured Copper LTUG cable in a trench to be excavated at a depth of 0.75 metre putting 0.15 metre layer of sand and covering the cable completely with bricks and sand and refilling the earth to make good

Supply and Delivery of C I D/F PIPES AS PER IS 7181/1986 & IS 1537/1996

Supply and Delivery of CI D/F SPECIALS & S/S SPECIALS AS PER IS 1538/1993

Jointing C.I/ D.I double flanged pipes and specials with rubber insertion or any equivalent to the required specifications with M.S. bolts and nuts etc., complete including charges for special tools and plants such as air compressor and helmets and sheet piles. etc (including cost of jointing materials)

Supply and laying of 3-1/2 x 150 sq.mm PVC armoured LTUG cable in a trench to be excavated at a depth of 0.75 metre putting 0.15 metre layer of sand and covering the cable completely with brick sand sand and refilling the earth to make good

Supply and fixing of brass cable gland for 3-1/2 x 150 sq.mm. PVC armoured LTUG cable with earth connection

Supply and providing cable end termination of 31/2 x 150sq.mm. PVC LTUG aluminium armoured cable with necessary aluminium cable sockets by crimping etc with electrical connection complete

Supply and Delivery of 250A 3 Pole MCCB

Supply and Delivery of Spreader Terminal for 250A/125A

Providing Sewage Motor Bed Arrangements Suitable for Fitting of 215 HP Submersible Pumpset Pedastal to the Size of 1.50m x 1.20m x 0.60m with Chamber Weight Bed Using 12mm Reinforcement with Shetteing and 1:1.5:3 Rcc Complete with all Labour Charges etc., Complete

Labour Charges for erection of Horizontal shaft, centrifugal pumpset (Coupled/ Monoblock) in bore well/Open well including fixing of suction pipe and foot valve upto a maximum depth of 7 metres and delivery pipes to the required length with valves, pressure gauges upto the exterior wall of pump room and erection of panel board consisting of TPIC switches starter, Voltmeter, Ammeter, Capacitor single phasing preventor and laying and jointing the cables and twin earthing as per IE rules including providing bed blocks etc., complete and operating the pumps and trial run for 10 days

Supply and Delivery of Switch Disconnector Fuse in Sheet Steel Enclosure

Dewatering using 3HP to 70HP diesel engine pumpset including Hire charges, cost of Diesel, Engine oil, pump operator, labour charges, conveyance of pumpset and fuel to site and back, loading, unloading etc., complete. For 7.5HP Motor.

Hire charges for Centrifugal slugde removal pumpset with fuel and crew charges including transportations, fixing and dismantling

Earth work excavation for desilting the existing rivers / canals / channels/odai/ nullas / drains/flood bowls/ tanks/ reservoirs etc., consisting of very loose soil, silt, oily silt, slushy, marshy, loany, organic soil, sea shell and flat mica particles with zero present air void in unhygienic & insanitary conditions in under water and not under water deploying earth moving machinery with suitable floats buoys barge/ hydraulic excavator & other mechanical devices including the cost of hire charges for machinery, with cost of skilled operators with helper & cleaners for the entire operations to reach the banks in which the removed silt & sludge has to be dumped over either one of the rivers / canals / channels/odai/ nullas / drains/floods bowls / tanks / reservoirs etc, bank whichever is convenient as per the prevailing site conditions for easy conveyance and including jungle clearance etc.. complete (Rate excluding conveyance to dumping yard or low lying area)

Rate for every additional shift to reach bank lying more than 8m

Rate for shifting the De silted Earth: Conveying the excavated silt in unhygienic & insanitary conditions to the dumping yard or low lying areas as directed by the field Engineer’s by deploying the earth moving machinery, hydraulic excavator, tippers & other mechanical devices including the cost of hire charges for machinery, with cost of skilled operators with helper & cleaners, including leveling etc..

Add GST 18%

KAVIN ELECTRICAL ENGINEERING (BID ID -1490189)