Replacement of old pumping machinery various water supply scheme and automation under Ghumarwin constituency in tehsil Ghumarwin Distt Bilaspur

Amount

Providing & Installation of horizontal spindle horizontal split casing / end suctions (back pull out arrangement ) single /double/multistage centrifugal pump or combination of pump in series of Mather and Platt / KSB/Kirloskar make as per BIS 1520-1980 with up to date amendments, read with IS:9137-1978 or latest edition suitable for lifting clear water . The pump should be fitted with bronze impellers of suitable alloys, priming funnels , casing rings, shaft sleeves of bronze, shaft of steel grade EN-8 with cast iron casing coupled directly through a flexible coupling on MS/ Cast steel base plate ( base plate to be provided from the manufacturer,s of the pumping unit only) to squirrel cage drip proof induction motor of standard make such as Kirloskar/Crompton/ BHEL confirming to BIS 9238-1979 latest with up to date amendments and suitable for operation on 400 (+/-) 10% volts, 50 cycles / second, three phase AC electric supply. The power of electric motor should be atleast 10% in excess of the maximum power required by the pump in the operation range of + 10% and - 15% of the duty point head. The motor should be as per IS 325-1978 with up to date amendments.The pump set should suitable for operation on data given below:-

Discharge:- 3.14 LPS per set, Total dynamic head :- 405.19 metre, Residual head:- 3 metres, Dia of Rising Main:- 65 mm , Length of Rising Main:- 7200 Rmt, Pumping Hours:- 8 hours, Coupling and base plate :- 2 sets, Turbidity :- less than 50 NTU, Temprature 20 degree to 45 degree centigrade.

Providing and fixing double flanged GMS piping network for suction and delivery pipes suitable to pumps offered and common header as per the rising main respectively complete with all specials such as rappers, flanges, rubber gaskets minimum 3 mm in thickness as per IS 2712-1979, nuts and bolts as per IS:1364-1983, bends ,tees reducers/ increasers with companion flanges matching with the relevant specifications of the accessories as per drawing up to 5 metre away from the outer wall of pump houses. The pipes shall be as per relevant IS Code and to withstand 1.5 times total head stipulated.The size of various components are as under:-

Suction pipe 80 mm dia M.C Minimum length= 5 metre

Delivery pipe 65 mm dia M.C Minimum length= 10 metre

Common header 65 mm dia M.C Minimum length = 10 metre

The GMS tube confirming to IS :- 1239-1979 part-I Medium class flanged with MS flanges of table 5 in suction pipe and heavy class flanged with MS flanges of table 17 in delivery side and common header.

Providing and laying suitable size copper PVC insulated armoured power 3.5 core cable ( one cable carrying all the three phases) of suitable size and capacity to and all other electrical equipments as per IS: 1554 (P-I)1988 or latest with upto date amendments of Siemens/ IEC/ICC/ make from metre of HPSEB to MCB and from MCB to bus bar switch and starter including all other accessories such as thimbles, flexible, pipes solder, nuts and bolts, cable glands etc. laid in pipes or trenches under floor.

Motor side: 6.00 mm2 or suitable capacity Min length = 20 mtrs.

Supply side: 10.00 mm2 or suitable capacity Min. length =10 mtrs.

PANEL ITEMS FOR PREMIUM STAR DELTA STARTER FOR CENTRIFUGAL PUMP-FULL FEATURE

Supply, Installation, Testing and Commissioning of premium Star Delta Starter panel for Centrifugal pump made out of 16 Gauge sheet, powder coated dust and vermin proof, wall/base mounted and front opening door type with copper insulated wiring suitable to operate 2Nos. centrifugal pumps (all working) each of the rating 40 HP through Star Delta Starter mechanism. Starter should be capable enough to handle the following faults like short circuit, over current, under current, over voltage, under voltage, dry run protection and phase loss with LED ON/OFF & TRIP indicators.

Star, Delta and Mains Power Contactors of required ratings as per type-2 co-ordination for 2x 40 HP starters

Voltage Protection device to protect panel from over voltage and under voltage for rating of above pumping machinery.

Single phasing and phase reversal protection device to safeguard system from single phasing and phase reversal of the supply voltage for the above pumping machinery.

Multi-function meter indicating different parameters like Current, Voltage, KWH, PF, THD etc. with RS 485 communication Make MAS/Elle/L&T

Main incomer MCCB/MCB of suitable 2x 40 HP=80 HP of L&T / Schnieder/ABB make on the feeder for pumping set confirming to BIS 2516-1985 ( Latest edition).

Individual Starter incomer MCCB/MCB of suitable for 2x 40 HP of L&T / Schnieder/ABB/Standard/Havellsmake on the feeder for pumping set confirming to BIS 2516-1985 ( Latest edition).

Three phase indicating lamps complete with logged switches for individual motors conforming to BIS 3452 ( Part I & II ) latest with upto date amendments.

LED On / Off & Trip indicator and push buttons, Control and power wiring,Powercapacitor,Cooling fan 230 VAC, Control terminal, Bus Bar, i.e.Bolt, insulator, etc.

Surge suppressor device with Isolating MCCB to eliminate the power surges due to lightening and system surges.

Control Transformer to provide a stable control voltage to safeguard the control circuit of all the components from the voltage surges and spikes.

Suman Kumar Chandel (BID ID -472655)

self (BID ID -472600)

SS ENGINEERING WORKS (BID ID -472598)

Rajni kumari (BID ID -472723)

Rajesh Kumar (BID ID -472664)