Replacement of old pumping Machinery of LIS Nagwain in GP Nagwain Tehsil Aut Distt Mandi HP

Amount

Raw Water Stage:- Supply of Monoblock raw cold water Pumping sets of reputed make such as KSB/Clama/SU/Johanston conforming to latest relevent BIS code. The pump should be fitted will free flow impellers of bronze/suitable alloy as per BIS 8034-1976 latest suitable for clear water having greased packed bearing and shaft with bound stator on motor side & with shaft protection sleeve on pump side ensuring better life for shaft confirming to BIS specifications. The pump shall be directly coupled to a submersible squirrel cage electric induction motor of Kirloskar/NGEF/Jyoti/ Cromptorn make conforming to relevent BIS Code latest with upto date ammendments totally dust & water proof for submersible duty isolated from the pump by intermediate casing with double mechanical seal in oil chamber & grease packed lubricated bearing & provided with stainless steel thrust bearing plate to with stand non vertical loads with minimum wear & tear. It should also be fitted with a device to take up expansion of water with the heating of motor. The pump set should include water level guard errection clamps cable clip & depth gauge etc. & suitable for operation on data given below :- A) SITE CONDITIONS : i) Location of Site About 30 Km from Sunder Nagar Near village Nagwain ii) The altitude of place in which the motor is intended to work in ordinary service if it exceeds 1000 mt. 500 Meters. iii) Humidity Weather generally remains humid during monsoon Season. IV) Nature of atmosphere As normally encountered in Shivalik Range. V) Detail of quality of water Raw cold water. Vi) Water free from sand or not yes. Vii) Water corosive or not yes. Viii) Turbidilty (if any) Upto 5000 PPM. ix) NPSH available Positive suction. x) Any other information or requirement. ( B) OPERATION CONDITIONS. i) Type of current AC three/single phase. ii) Operating frequency 50 HZ. iii) Rated voltage 400 (+/-) 10% volts. iv) System of earthing if any to be adopted. Double loop earthing as per BIS 3043-1987 latest with upto date ammendments. v) No. of working hours per day 20 hours. vi) Speed of revolution in RPM. To be quoted by tenderer. vii) Direction of rotation To be quoted by tenderer. viii) The max. Temp. of cooling air & water in the place in which the motor is intented to work in ordinary service. 35 Degree Centigrade. (C) MOTOR i) Ref to BIS code. BIS 325- 1978 read with BIS 900-1992 (latest) with upto date ammendments. ii) Type of enclosure of motor SPDP (as per BIS 4691-1985 (Latest) iii) Type of duty Continuous. iv) Mechanical out put in KW. Suitable for driving centrifugal pumps required for duties specified against pumps. To avoid overloading of motor a margin of about 15-20% may be kept in the rated out put of prime mover. v) Class of insulation Class- B. vi) Max. permissible temprise of motor reqd, if different from given in B (viii) above. -- vii) Particulars of test reqd. & wheire they are to be conducted. As per terms & conditions. viii) Particulars as to whether voltage limiting device will be employed. ATS/star delta starter oil immersed fully automatic to be installed between bus bar chamber & motor. Shunt capacitor is also proposed to be installed for improving the power factor at site.NOTE :- Star delta starter upto 37.5 KW. ATS between 37.5 KW to 50 KW & Stator rotor starter with slipring motor beyond 50 KW. ix) Motor whether squirrel cage or slipring. Squirrel cage/slipring Note :- Squirrel cage upto 65HP and slipring above 65 HP. x) Details of shaft extension reqd. Just sufficient to provide direct drive by flexible coupling to pump. xi) Type of slip ring gear whether continously rated or for starting puposes only & whether to be fitted with brush lifting or short circuiting arrangements or both if interlocks are required. Continously rated for Squirrel cage/ slipring motor.xii) Breakway torque in terms of rated load torque & the corresponding breakway starting current which may be taken from the supply with the starting apparatus in circuit. Breakway torque to be given by the tenderer but the starting current should not exceed 2.5 times of the full load current xiii) Nature of laod & any information regarding the driven machine which has a bearing upon the torque reqd. during the accelerated period, the kinetic energy of the moving parts to be accelrated & No. of starts during a specified period.To work the pump offered. xiv) Where possible fault capacity of the system to which the motor is connected.The motor should be able to withstand initial current of 2.5times the rated current for two minutes without suffering damages or permanent defomations. D) PUMP (IS 8034 -1974) read with BIS 9137-1978 both latest with upto date ammendemnts. a) Nos of pumps reqd.2 Nos. working pumps b) Spare parts required.For two years normal maintenance as recommended by manufacturer. c) Optional fittings reqd.Air cock for exahausting air from Each stage.E)PUMP OPERATING CONDITIONS i) Capacity 18.49 LPS ii) Total head in Mtrs. 23.37 Mtrs. If total head is not known then follwing details be provided :- i) Static head 20.00 Mts. ii) Mininimum depth of water ---- mtrs. iii) Variation in water level ---- mtrs. iv) Ground level to max. water level …………..mtrs. v) Ground level to delivery point ………... mtrs. vi) Presure in the suction tank -----Kg/cmΛ² vii ) Pressure in the delivery tank -----Kg/cmΛ² iii) Length of Rising main 35 mts. iv) Dia of R/main 250 mm v) Drive arrangement Direct through flexible coupling on a common base plate.vi) Drive type Electric driven. vii) NPSH reqd. To be quoted by the tenderer.viii) Limits of total head in which the pump is reqd. to operate.(-) 25% to (+) 10% of total head. ix) Suction/delivery size of pump. To be specified by the tenderer. x) Efficiency of pump at To be specified by the tenderer. a) duty head b) (+) 10% head c) (-) 25% head xi) Material of construction. To be specified by the tenderer xi) (Manufacturers certificate to be appended)

Supply of suitable oil immeresd Star Delta Starter/ATS/stator Rotor Starter of standard make such as MEI/Kilburn/Jyoti/Siemens conforming to BIS: 8544-1979 latest with upto date ammendments for squirrel cage/slipring motor (make to be specified by the tenderers) mounted on panel board with magnetic type over load release & dashpot, time lag, under voltage release with initial oiil filling. Note:- Star- delta - starter upto 37.5 KW. ATS between 37.5 KW to 50 KW and stater rotor starter with slipring motor beyond 50KW.

Providing M.S. sheet 16 SWG steel fabricated floor mounted closed almirah type switch board including angle Iron post of suitable height and size ISA 40x40x6mm duly painted comprising and capable of mounting the following accessories with all internal electric connections. The drawing of panel board shall be subject to approval of Engineer-in-Charge.

ICTP switches with HRC fuses Kilburn/Larsen & turbo/Standard/Siemen make and having capacity 30% extra of the operational rating of motor as per BIS 4064-1978 with upto date ammendments immediately after the power meter of HPSEB.

MCB/Oil circuit breaker of suitabe capacity of Kilburn/L.T./LK/MEI/Standard make on in coming feeder for motors offered by the tenderer conforming to BIS 2516-1985 latest with upto date ammendments with neutral linked under voltage release.

3 Phase indicating lamps complete with toggle switches for individual motors conforming to BIS 3452 part I & II latest with upto date ammendments.

Earth leakage circuit breaker of recomended (Kilburn/L&T/MET/GEC as per BIS-2516-1977 with upto date ammendments and of suitable range with which should have control box, oprating handed and trip/reset bush button on/off indicators, re-indicating off spring condition of the circut breaker for over current protection. The circuit should be equipped with magnet thermal release with metallic tape CTS. It should also be fitted earth fault for tripping of breaker on occurance of earth fault on/of breaker load side.

Hour run meter of reputed make of four digit capacity conforming to BIS-722 (latest edition)/recommendations.

Suitable three phase voltage monitor relay with all protections & usual indicators with electrical sirens against single phasing no voltage high voltage & overloading & phase voltage difference.

Change over switch of reputed make & suitable capacity.

Single phase preventor of reputed make & suitable cacpacity.

P/L suitable size copper PVC insulated armoured power 3 1/2 core cable conforming to BIS 1554 (Part I) - 1988 or latest with upto date ammendments Siemen/Gloster/ICC make from meter of HPSEB to OCB & from OCB to Busbar switch & starter (one cable carrying all three phases) including all other electrical equipment/accessories such as thimbles, flexible pipe, solder, nuts & bolts, cable glands etc. laid in pipe or trenches under floor. The type, size & make will be subject to approval of HPSEB authorities. In case of non acceptance by HPSEB authorities it shall have to be replaced by the tenderer free of cost.

P/L jointless flat water proof cable as per BIS 694-1990 (latest with upto date ammendments) suitable for the pump set offered from OCB to motor, motor to starter including all other electrical equipments such as Thimbles, flexible pipes, solder, nuts & bolts cable glands etc. laid in pipes or trenches. The type, size & make will be subject to approval of HPSEB authorities. In case of non acceptance by HPSEB authorities it shall have to be replaced by the tenderer free ofcost.

Supply & erretion of floor/wall mounted power factor shunt capacitor conforming to BIS 2834-1986 latest with upto date ammendments BHEL/GEC/Machneil/Mager/Bajaj make to raise the prevailing power factor at site to 0.95 for direct connection to induction motor individually, of required KVAR according to HP of motor offered including cable Siemens/Gloster/ICC make from busbar chamber to capacitor & also including LT/LK/Kilburn make ICTP switches conforming toBIS 4064-1978 or latest with HRC fuses (Range to be specified by the tenderer.)

Supply of standard make 100mm dia circular dial pressure gauge of suitable range Fiebeg/Bourden/Precision make with all accessories such as stop cock, copper tubing etc. conforming to BIS 3624-1987 latest with upto date ammendments.

Errection of all equipments from S.No. 1 to 4, 6 & 8 i/c cost of tees, bends tapers & any other fittings required as per site conditions & as per directions of Engineer-in-Charge.

Supply of Horizental spindle, horizental split casing Single/Multistage centrifugal pumps of standard make such as KSB/Mather & platt/Jyoti/Kirloskar conforming to BIS 1520-1980 (latest with upto date amamendments) read with BIS 9137-1978 or latest to handle clear water having turbidity 50 ppm. with impellers, casing ring & shaft sleeves of bronze, shaft of steel with cast iron casing of suitable capacity coupled directly through a flexible coupling on a common base plate to Kirloskar/NGEF/Crompton/Siemen/Jyoti slip ring/squirrel cage screen protected drip proof induction electric motor suitable for operation on the data given below. A) SITE CONDITIONS : i)Location of Site About 57 Km from Mandi Town.Near village Nagwainii)The altitude of place in which the motor is intended to work in ordinary service if it exceeds 1000 mt. 1060 Mtrs. iii) Humidity Weather generally remains humid during monsoon Season iv) Nature of atmosphere As normally encountered in Shivalik Range. v) detail of quality of water clear cold water vi) Water free from sand or not Yes. vii) Water corosive or not Not viii) Turbidity (if any) Upto 500 PPM. ix) NPSH available V . x) Any other information or requirement. ( B) OPERATION CONDITIONS. i) Type of current AC three/single phase. ii) Operating frequency 50 HZ. iii) Rated voltage 400 (+/-) 10% volts. iv) System of earthing if any to be adopted. Double loop earthing as per BIS 3043-1987 latest with upto date ammendments. v) No. of working hours per day 20 hours. vi) Speed of revolution in RPM. To be quoted by tenderer. vii) Direction of rotation To be quoted by tenderer. viii) The max. Temp. of cooling air & water in the place in which the motor is intented to work in ordinary service. 25 Degree Centigrade. (C) MOTOR i) Ref to BIS code. BIS 325- 1978 read with BIS 900-1992 (latest) with upto date ammendments. ii) Type of enclosure of motor SPDP (as per BIS 4691-1985 (Latest) iii) Type of duty Continuous. iv) Mechanical out put in KW. Suitable for driving centrifugal pumps required for duties specified against pumps. To avoid overloading of motor a margin of about 15-20% may be kept in the rated out put of prime mover. v) Class of insulation Class- B. vi) Max. permissible temprise rise of motor reqd, if different from given in B (viii) above. -- vii) Particulars of test reqd. & wheire they are to be conducted. As per terms & conditions. viii) Particulars as to whether voltage limiting device will be employed. ATS/star delta starter oil immersed fully automatic to be installed between bus bar chamber & motor. Shunt capacitor is also proposed to be installed for improving the power factor at site.NOTE :- Star delta starter upto 37.5 KW. ATS between 37.5 KW to 50 KW & Stator rotor starter with slipring motor beyond 50 KW. ix) Motor whether squirrel cage or slipring. Squirrel cage/slipring Note :- Squirrel cage upto 65HP and slipring above 65 HP. x) Details of shaft extension reqd. Just sufficient to provide direct drive by flexible coupling to pump. xi) Type of slip ring gear whether continously rated or for starting puposes only & whether to be fitted with brush lifting or short circuiting arrangements or both if interlocks are required. Continously rated for Squirrel cage/ slipring motor.xii) Breakway torque in terms of rated load torque & the corresponding breakway starting current which may be taken from the supply with the starting apparatus in circuit. Breakway torque to be given by the tenderer but the starting current should not exceed 2.5 times of the full load current xiii) Nature of laod & any information regarding the driven machine which has a bearing upon the torque reqd. during the accelerated period, the kinetic energy of the moving parts to be accelrated & No. of starts during a specified period.To work the pump offered. xiv) Where possible fault capacity of the system to which the motor is connected.The motor should be able to withstand initial current of 2.5times the rated current for two minutes without suffering damages or permanent defomations. D) PUMP upto date ammendemnts. a) Nos of pumps reqd.1 No. working pump b) Spare parts required.For two years normal maintenance as recommended by manufacturer. c) Optional fittings reqd.Air cock for exahausting air from Each stage.E)PUMP OPERATING CONDITIONS i) Capacity 24.65 LPS ii) Total head in Mtrs. 102.70 Mtrs. If total head is not known then follwing details be provided :- i) Static head 95.00 Mts. ii) Mininimum depth of water ---- mtrs. iii) Variation in water level ---- mtrs. iv) Ground level to max. water level …………..mtrs. v) Ground level to delivery point ………... mtrs. vi) Presure in the suction tank -----Kg/cmΛ² vii ) Pressure in the delivery tank -----Kg/cmΛ² iii) Length of Rising main 305.00 mts. iv) Dia of R/main 250 mm v) Drive arrangement Direct through flexible coupling on a common base plate.vi) Drive type Electric driven. vii) NPSH reqd. To be quoted by the tenderer.viii) Limits of total head in which the pump is reqd. to operate.(-) 25% to (+) 10% of total head. ix) Suction/delivery size of pump. To be specified by the tenderer. x) Efficiency of pump at To be specified by the tenderer. a) duty head b) (+) 10% head c) (-) 25% head xi) Material of construction. To be specified by the tenderer xi) (Manufacturers certificate to be appended)

Suply of suitable oil immeresd Star Delta Starter/ATS/stator Rotor Starter of standard make such as MEI/Kilburn/Jyoti/Siemens conforming to BIS: 8544-1979 latest with upto date ammendments for squirrel cage/slipring motor (make to be specified by the tenderers) mounted on panel board with magnetic type over load release & dashpot, time lag, under voltage release with initial oil filling. Note:- Star- delta - starter upto 37.5 KW. ATS between 37.5 KW to 50 KW and stater rotor starter with slipring motor beyond 50KW.

Providing M.S. sheet 16 SWG steel fabricated floor mounted closed almirah type switch board including angle Iron post of suitable height and size ISA 40x40x6mm duly painted comprising and capable of mounting the following accessories with all internal electric connections. The drawing of panel board shall be subject to approval of Engineer-in-Charge.

ICTP switches with HRC fuses Kilburn/Larsen & turbo/Standard/Siemen make and having capacity 30% extra of the operational rating of motor as per BIS 4064-1978 with upto date ammendments immediately after the power meter of HPSEB.

Busbar chamber having 3 copper bars of suitable rating for full length equal to width of board of 3 live phases and one copper bar of half rating of full length for neutral conforming to BIS 8084-1976 and 11353-1985 read with 5578-1985 all latest with upto date amamendments.

MCB/Oil circuit breaker of suitable capacity of Kilburn/L.T./LK/MEI/Standard make on in coming feeder for motors offered by the tenderer conforming to BIS 2516-1985 latest with upto date ammendments with neutral linked under voltage release.

3 Phase indicating lamps complete with toggle switches for individual motors conforming to BIS 3452 part I & II latest with upto date ammendments.

Earth leakage circuit breaker of recommended (Kilburn/L&T/MEI/GEC as per BIS-2516-1977 with upto date ammendments and of suitable range with which should have control box, oprating handed and trip/reset bush button on/off indicators, re-indicating off spring condition of the circut breaker for over current protection. The circuit should be equipped with magnet thermal release with metallic tape CTS. It should also be fitted earth fault for tripping of breaker on occurance of earth fault on/of breaker load side.

Hour run meter of reputed make of four digit capacity conforming to BIS-722 (latest edition)/recommendations.

Suitable three phase voltage monitor relay with all protections & usual indicators with electrical sirens against single phasing no voltage high voltage & overloading & phase voltge difference.

Change over switch of reputed make & suitable capacity.

Single phase preventor of reputed make & suitable cacpacity.

Supply of Kirloskar/Kilburn/IVC/Fouress/Gled/BHEL/Leader/ of reputed make of suitable size cast iron/cast steel double flanged sluice valve having size equal to delivery of pump and capable of with standing nominal seat pressure of 52 Kg/cm^² NOTE:- The sluice valve shall conform to BIS 780-1984 latest with up to date ammendments. However if the seat pressure exceeds the limits prescribed in BIS 780 then the sluice valves shall be of cast steel conforming to class 150 ASA (Seat pressure 21Kg/cm^²) or class 300 ASA (Seat pressure 52 Kg/cm^² or class 600 ASA (Seat pressure 104 Kg/Cm²) as per BS 1414 (API 600)

Supply of Kirlosker/Kilburn/IVC/Fouress/Gled/BHEL/Leader of suitable size cast iron/Cast Steel double flanged swing check type reflux valve having bye pas arrangement & size equal to delivery of Pump for withstanding nominal seat pressure of 52Kg/cm^²NOTE:- The sluice valve shall conform to BIS 780-1984 latest with up to date ammendments. However if the seat pressure exceeds the limits prescribed in BIS 780 then the sluice valves shall be of cast steel conforming to class 150 ASA (Seat pressure 21Kg/cm^²) or class 300 ASA (Seat pressure 52 Kg/cm^² or class 600 ASA (Seat pressure 104 Kg/Cm²) as per BS 1414 (API 600)

Supply of Kirloskar/Kilburn/IVC/Fouress/Glad/Bhel/Leader of suitable size Cast Iron/Cast Steel double flanged swing check type reflux valve having bye pass arrangement & size equal to dia of R/Main for withstanding nominal seat pressure of 52 Kg/cm^² NOTE:- The sluice valve shall conform to BIS 780-1984 latest with up to date ammendments. However if the seat pressure exceeds the limits prescribed in BIS 780 then the sluice valves shall be of cast steel conforming to class 150 ASA (Seat pressure 21Kg/cm^²) or class 300 ASA (Seat pressure 52 Kg/cm^² or class 600 ASA (Seat pressure 104 Kg/Cm²) as per BS 1414 (API 600)

Supply of Kirloskar/Kilburn/IVC/Fouress/Glad/BHEL/Leader/of reputed make of suitable size cast iron flanged sluice valve confirming to IS 780, size equal to dia of suction pipe PN 1 Provided with hand wheel/Cast iron Cap.

Supply of Kirloskar/Jyoti/Standard/Kilburn make cast iron flanged screwed type foot valve with strainer of dia equal to dia of suction pipe conforming to BIS 4038-1986 or latest with upto date ammendments.

P/L suitable size copper pVC insulated armoured power 3 1/2 core cable conforming to BIS 1554 (Part I) - 1988 or latest with upto date ammendments Siemen/Gloster/ICC make from meter of HPSEB to OCB & from OCB to Busbar switch & starter (one cable carrying all three phase) including all other electrical equipment/accessories such as thimbles, flexible pipe, solder, nuts & bolts, cable glands etc. laid in pipe or trenches under floor. The type size & make will be subject to approval of HPSEB authorities. In case of non acceptance by HPSEB authorities it shall have to be replaced by the tenderer free of cost.

Providing laying suitable size copper PVC insulated armoured power three core cable conforming to BIS 1554 (part-I)-1988 or latest with up to date ammendments Siemen/Gloster/ICC make from switch to starter & starter to motor (one cable for carrying all three phases) including all other electrical equipment/accessories such as thimbles, flexible pipes, solder, nuts & bolts, cable gland sets. laid in pipes or trenches under floor. The type, size & make will be subject to approval of HPSEB authorities. In case of non acceptance by HPSEB authorities it shall have to be replaced by the tenderer free of cost.

P/L double loop earthing with copper plate 600x600x3mm thick electrode complete with material such as charcoal, common salt, G.I. Pipes, thimbles, nuts & bolts, digging of pits, G.I.wiring & 25x5mm copper strips of required capacity conforming to BIS 3043-1987 latest with up to date ammendments for above motors & other electrical equipment.

Supply & erretion of floor/wall mounted power factor shunt capacitor conforming to BIS 2834-1986 latest with upto date ammendments BHEL/GEC/Machneil/Mager/Bajaj make to raise the prevailing power factor at site to 0.95 for direct connection to induction motor individually, of required KVAR according to HP of motor offered including cable Siemens/Gloster/ICC make from busbar chamber to capacitor & also including LT/LK/Kilburn make ICTP switches conforming to BIS 4064-1978 or latest with HRC fuses (Range to be specified by the tenderer.)

Supply of standard make 100mm dia circular dial pressure gauge of suitable range Fiebeg/Bourden/Precision make with all accessories such as stop cock, copper tubing etc. conforming to BIS 3624-1987 latest with upto date ammendments.

Errection of all equipments from S.No. 1 to 4, 6 & 8 i/c cost of tees, bends tapers & any other fittings required as per site conditions & as per directions of Engineer-in-Charge.

Raj Kumar

SANGRAM NAIK