Improvement of LWSS Jungle Sandhu in GP Sandhu Tehsil Theog Distt Shimla

Amount

Supply, erection, testing & commissioning of horizontal spindle,horizontal split casing,radial split Single, /Multistages Recprocating pumps D-35/12 with 20 HP or combination of pumps, in series parallel of recommended make such as Mather and Platt/ KSB/ Becon weir/ Kirloskar/ BE /Jyoti or any other make approved from JSV Deptt.as per BIS 1520-1980 with upto date ammendments read with BIS 9137-1978 or latest edition to suitable for lifting clear water for under mentioned characteristics with bronze impellers/priming funnels casing ring and shaft sleaves or bronze. shaft of steel grade-with cast iron casing coupled directly through a flexible coupling on a common C.I./Cast steel base plate (base plate to be from the manufacturers of the pumping unit only) to slip ring/squirrel cage screen protected drip proof induction motor IE2 of standard make such as Kirloskar/ Crompton/ Bhel/ NGEF/GEC/ Siemen/Jyoti/ ABB or any other make approved from IPH Deptt.suitable for operation on 415(+) /-10% volts, 50 cycles/second, 3 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 (-)25% of the duty point head. The motor should be as per IS:325-1978 with upto date ammendments read with IS:900-1972. It should include cost of bearing nuts, bolts and pointing etc. and should meet the following requirements:- (2x20=40HP)

Total Head :- 480 mtrs.

Cpacity of eah pump set :- 5.40 lps for each pump set

Dia of rising main:- 65 mm.

Length of Rising Main (in meters) :- 1490 mtrs.

SITE CONDITIONS & WATER CHARACTERSTICS :-

Location of Site :-

The altitude of plae in which the motor is intended to work in ordinary service (in meters):- to be filled by Engineer-in-Charge.

Humidity :- Weather generally remeins humid during monsoon season.

Nature of Atmosphere :- As normally encountered in Shivalik ange.

Dteail quality of water :-

Water free from sand or not :-

Water crosive or not :-

Turbidity (if any) :-

NPSH available :-

Any other information or requirement :-

OPERATING CONDITIONS :-

Type of current :- AC three/single phase

Operating frequency :- 50 HZ

Rated voltage :- 400 (+/-) 10% volts

System of earthing if any to to be adopted.:- Double loop earthing as per BIS 3043-1987 latest with upto date ammendment

No. of working hours per day: 8 hours

Speed of revolution in RPM:- To be quoted by tenderer

Direction of rotation:- To be quoted by tenderer

The max. Temp. of cooling air & water in the place in which the motor is intented to work in ordinery service:- 35 Degree Centigrade

MOTOR:-IE2

Ref. to BIS code:- BIS 325-1978 read with BIS 900-1992 (latest)with upto date ammendments

Type of enclosure of motor:- SPDP(as per BIS 4691-1985 (latest)

Type of duty:- Continuous as per IS-12824-1989 or latest with up to date ammendments

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.

Class of insulation:- Class~B~

Max.permissible temp.rise of motor reqd. if different from given in B(viii) above:- To be filled by the Engineer-in-Charge.

Particulars of test reqd. & where they are to be conducted:-`As per terms & conditions

Particulars as to whether voltage limiting device will be employed:-ATS/Star delta starter, oil immersed, fully automatic to be installed between bus bar and 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 and stator rotor starter with slip ring motor beyond 50 KW).

Motor whether squirrel cage or slipring:- Squirrel cage/slip-ring (Note:- Squirrel cage upto 65 HP and slipring above 65 HP.

Details of shaft extension reqd.:- Just sufficient to provide direct drive by flexible coupling to pump.

Type of slip-ring gear whether continuously rated or for starting purposes only & whether to be fitted Continuously rated with brush lifting or short circuit arrangements or both if interlocks are rquired.:- for Squirrel cage/ Slipring motor

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.

Nature of load & 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:- Sufficient to work the pump offered

Where possible fault capacity of the system to which the motor is connected.:- The motor should be able to withstand initial current of 2.5 times the rated current for two minutes without suffering damages or permanent deformations.

PUMP:- BIS 1520-1980 read with BIS 9137-1978 both with up to date ammendments.

Nos of pumps reqd:- 2No. Pump one with act ata time and 2nd will act as stand bye.

Spare parts required:- For 2 years normal maintenance as recommended by manufacturer.

Optional fittings reqd: Air cock for exahausting air from each stage.

PUMP OPERATING CONDITIONS:-

Capacity (in LPS):- 5.40 LPS

Total head (in Mts).:- 480 mtrs.

if total head is not known then:-

following details be provided-

i) Static head (in mtrs):- 450 Mtrs.

ii) Minimum depth of water( in mtrs)

iii) Variation in water level (in mtrs)

iv) Ground level to max. water level (in mtrs)

v) Ground level to delivery point (in mtrs)

vi) Pressure in the suction tank (in Kg/cm^2)

vii) Pressure in the delivery tank (in Kg/cm^2)

Length of R/Main (in metres):- 1490 mtrs.

Dia of R/Main (in mm):- 65mm.

Drive arrangement:- Direct through flexible coupling on a common base plate

Drive type:- Electric driven

NPSH reqd.:- To be quoted by the tenderer

Limits of total head in which

the pump is reqd. to operate.:- (-) 15% to (+) 10% of total head.

Suction/delivery size of pump:- To be specified by the tenderer

Efficiency of pump at:- To be specified by the tenderer

a) duty head

b) (+)10 % head

c) (-) 15% head

Material of construction:- To be specified by the tenderer (manufacturer's certficate to be appended)

Supply of suitable direct on line/oil immersed star delta /ATS/Stator rotor starter of standard make such as MEI/ Kilburn/ Jyoti/ Siemens/Larson and Turbo conforming to BIS-8544-1979 latest with upto date ammendments for squirrel cage/slip-ring motor (make to be specified by the tenderers) mounted on panel board with magnetic type overload release & dash pot, time lag, under voltage release with initial oil filling. (1 Each)

Note:-Star delta starter upto 37.5 KW,ATS between 37.5 KW to 50 KW and starter rotor starter with slipring motor beyond 50 KW.

Providing MS 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 connections: The drawing of panel board shall be suybject to approval of Engineer-in-Charge. (1 Each)

ICTP switches with HRC fuses of Kilburn/ L&T/ Siemens/S tandard/ Havells make and having Capacity 30% extra of the operational rating as per IS 4064-1978 with upto date ammendments immediately after the power meter of HPSEB. ICTP SWITCHES: i) Type : Amp. ) ii)Make:- iii)Capacity (2 Set)

Bus bar chamber having three copper bars of suitable rating for full length equal to the width of the board for three live phases and one copper bar of half the rating of full length for neutral phase as per BIS:8084-1976 and 11353-1985 read with 5578-1985 with upto date ammendments. BUS BAR CHAMBER- i)Type:- ii)Make- iii)Rating (1 Set)

ACB/M.C.B/Oil Circuit Breaker of suitable capacity of Kilburn/ L&T/MEI/GEC/Standard make on incoming feeder for motor offered by the tenderer conforming to BIS-2516-1985 latest with upto date ammendments with initial oil filling whenever required and neutral linked under voltage release. (1 Each)

Three phase Indicating lamps complete with toggle switches for individual motors as per IS 3452(P-1&11) with upto date ammendments. HREE PHASE INDICATOR:- i) Type:- ii) Make:- iii)Capacity:- (1 Each)

Earth leakage circuit breaker relay of recommended make such as (Kilburn/L&T/ME/ GEC) conforming to BIS-2516-1977 with upto date ammendment and of suitable range which should have control box operating handle and trip/reset bush button on/off indicators, re-indicating off spring condition of the circuit breaker for over current protection. The circuit should be equipped with magnet thermal release with metallic tape etc. It should also be fitted with earth fault for tripping of breaker on occurrence of earth fault on off breaker load side end ELCB/ELR:- i)Make - (CEI approved). ii)Type: iii)Range:- (1 Each)

Providing Hour run meter of reputed make for four digit capacity conforming to BIS:722(Latest edition)/ recommendations. HOUR RUN METER:- I) Type:- ii)Make iii)Capacity:- Hrs (2 Each)

Suitable three phase voltage monitor relay with all protection and usual indicator and electric siren against single phasing No/ low voltage, high voltage & overloading and phase voltage difference as per IS:3842 with upto date ammendments. (1 Each)

Change over switch of reputed make and suitable capacity (1 Each)

Single phase preventor of reputed make and suitable capacity conforming to IS:1248 (P-V)-1983 with upto date ammendments. (1 Each)

Supply of Kirloskar/Leader/KSB/fouress/pellicon make of Cast steel double flanged sluice valve having size nominal delivery size of pump and capable of withstanding nominal seat pressure as mentioned in item No.10 (a) & conforming to BIS/API-standards with upto date ammendments for delivery line of pump. (2 Each)

(Note:- The sluice valve shall conform to BIS-780-1984 latest with upto date ammedments. 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 21 kg/cm^2) or Class 300- ASA )Seat pressure 52 kg/cm^2) as per BS: 1414(API -600).

Supply of Bhel/Kirloskar/Kilburn/IVC/Fouress/Gled/BHEL/Leader/Bir/Kartar/ Pelocon make of Cast Iron/Cast Steel double flanged swing check type reflux valve for delivery line of pump having bye passarrangement & size one size higher than the normal delivery size of pump and capable of withstanding nominal seat pressure as mentioned in item No. 10 (a) & comforming to BIS/API standard with upto date ammendments for delivery line of pump. (2 Each)

NOTE:- The reflux valve shall conform to BIS 5312-1984 (part I) latest with up to date ammendments. However if the seat pressure exceeds the limits prescribed in BIS 5312 then the reflux valves shall be of cast steel conforming to class 150 ASA (Seat pressure 21 kg/cm^2) or Class 300 ASA (Seat pressure 52 kg/cm^2) as per BIS: 1414(API-600).

Supply of Kirloskar/Kilburn/IVC/Fouress/Gled/BHEL/Leader/Bir/Kartar/ Pelocon make of suitable size Cast Steel double flanged swing check type reflux valve having bye pass arrangement & size equal to dia of Rising main as mentioned in item No. 10 (c) for with standing normal seat pressure as per item No.10(a) (2 Each)

NOTE:- The reflux valve shall conform to BIS 5312-1984 (part I) latest with up to date ammendments. However if the seat pressure exceeds the limits prescribed in BIS 5312 then the reflux valves shall be of cast steel conforming to class 150 ASA (Seat pressure 21 kg/cm^2) or Class 300 ASA (Seat pressure 52 kg/cm^2) as per BIS: 1414(API-600).

Supply of Kirloskar/Jyoti/ Standard /Kilburn /Bir /Kartar make cast iron flanged screwed type foot valve (in case suction lift is involved) for suction pipe having size one or two size larger than suction size of pump such that velocity of flow is not more than 2.50 mtr/s ec. with strainer having net area of its openings equal to three to four times of X-sectional area of flow in suction pipe conforming to BIS- 4038-1986 or latest with up to date ammendments including all leads and lifts. (2 Each)

Supply of Kirloskar/Kilburn/IVC/Fouress/Gled/BHEL/Leader/Bir/Kartar/Pelicon make of Cast Iron double flanged sluice valve (in case suction is +tive) for suction pipe having size one or two size larger than suction size of pump such that velocity of flow in suction pipe is not more than 2.50 mtrs/sec. with stainer het area of its opening equal to three to four timjes of X-sectional area of flow in suction pipe and conforming to BIS/API standards with upto date ammendments i/c all leads and lift and as directed by the Engineer-in-charge. (2 Each)

NOTE:- The reflux valve shall conform to BIS 5312-1984 (part I) latest with up to date ammendments. However if the seat pressure exceeds the limits prescribed in BIS 5312 then the reflux valves shall be of cast steel conforming to class 150 ASA (Seat pressure 21 kg/cm^2) or Class 300 ASA (Seat pressure 52 kg/cm^2) as per BIS: 1414(API-600).

Prov. laying jointing and testing at site suitable size copper PVC insulated armoured power three and half core cable conforming to BIS 1554 (Part.1) 1988 or latest upto date ammendments or siemens/Gloster/ICC/EICO/National/IEC make from meter of HPSEB to circuit breaker and from circuit breaker to bus bar switch and starter (one cable carrying all three phases) including all other electrical equipment/accessories, such as thimbles, flexble pipe, solder, nuts and bolts, cable glands etc. laid in pipes or trenches under floor. The type, size and 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 i/c cost of carriage of material in all leads and lifts and as directed by the Engineer-in-charge. (1 Job)

Prov. laying jointing and testing at site suitable size copper PVC insulated armoured power three core cable conforming to BIS 1554 (Part.1) 1988 or latest upto date ammendments or siemens/Gloster/ ICC/EICO/National/ IEC make from meter of HPSEB to circuit breaker and from circuit breaker to bus barswitch and starter (one cable carrying all three phases) including all other electrical equipment/ accessories, such as thimbles, flexble pipe, solder, nuts and bolts, cable glands etc. laid in pipes or trenches under floor. The type, size and make will be subject to approval of HPSEB authorities. In case non acceptance by HPSEB authorities it shall have to be replaced by the tenderer free of cost i/c cost of carriage of material in all leads and lifts and as directed by the Engineer-in-charge. (1 Job)

Providing and laying double loop earthing with copper plate 600mmx600mmx3mm thick electrode complete with material such as charcoal and common salt G.I.Pipes thimbles nuts and bolts,digging of pits, G.I.Wiring and 25x5mm copper strips of required capacity conforming to BIS 3043-1987 latest with upto date ammendments suitable for above motors and other electrical equipments i/c cost of carriage material in all leads and lifts and as directed by the Engineer-in-charge. (1 Job)

Supply and errection of floor/wall mounted power factor shunt capacitor conforming to BIS:2834-1986 or latest with upto date ammendments of BHEL/GEC/Machneil/Mager/Bajaj/L&T 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 L&T/Kilburn/Standard/Siemens/Havells make ICTP switches conforming to BIS:4064-1978 or latest with HRC fuses (Range to be specified by the tenderer) i/c cost of carriage of material in all leads and lifts & as directed by Engineer-in-charge. (2 Each.)

Supply of 100mm circular dia pressure gauge of suitable range & standard make such as Fiebig/Bourden/ Precision/PREGA with all accessories such as stop cock, copper tubing etc.conformfing to BIS: 3624-1987 or latest with upto date ammendments. (2 Each)

Prov. and fixing double flanged suction, delivery pipe and common header considering site requirement, NPSH required and available & common header having area equal to two times the area of delivery branch of pump including tapers, flanges, rubber gaskets 3mm thick as per BIS:2712-1978 nuts and bolts as per 1264-1983 & special upto 5mtrs. away from the outer wall of pump house as per layout drawings approved by Engneer-in-charge. The pipes shall be capable of with standing minimum 1.5 times the total pressure as indicated in item No.14.01 or total dynamic pressure+ surge pressure whichever is more. The size of suction pipe shall be one or two sizes larger than the suction size of pump such that velocity of flow in suction pipe is not more than 2.50 mtrs./sec. & delivery pipe shall be of size one size larger than nominal delivery size of pump i/c cost of carriage of material in all leads and lifts and as per directed by the Engineer-in-charge. (1 Job)

Supply of antivibration pads conforming to BIS 6337-1971 or latest with upto date ammendments o suitable size for above machinery. (2 Each)

Errection of all equipments from Sr. No. 1 to 15 i/c cost of tees, bends, tapers and any other fittings required as per site conditions & as per direction of Engineer-in-Charge. (1 Job)

Excavation in Drains and channels etc. in earth in all kind of soil such as pick work, jumper work, blasting work and hard blasting and chiselling etc. stacking the exvacted soil not more then 3 mtrs. clear from the edge of excavation and then returning the stacked soil in 15 cm. Layer when required into plinths sides of foundations etc. consolidating each deposited layer by ramming and watering and then diposing of all surplus excavated earth as directed within all leads and lifts.

Providing, Laying and jointing in trenches, butt welding galvanised mild steel tubes (Heavy grade) including bends of all the degree as per site requirement. (earth work in trenches and flanges to be measured and paid for separately). 65 mm dia nominal bore i/c all leads and lifts.

Ajay Sharma (BID ID -538108)