Providing LWSS to various villages in GP Sainj and Nandi in Tehsil Chachiot District Mandi HP

Amount

Excavation in foundation,trenches (for pipes & pits) up to all depths in all classification of earth work such as pick work,jumper work,saturated soil including bailing and pumping out water, blasting soft/hard rock or chiseling soft/hard rock where blasting is prohibited in all lifts including trimming & dressing of sides, levelling of beds to correct grade i/c shoring/ strutting,planking, timbering & dewatering wherever required, stacking the useable of unuseable material/ soil separately & after laying jointing testing of pipes in trenches in 15 Cm layers including consolidating of each deposited layer by ramming & watering & then disposing of all surplus Excavated soil/unusable material as directed with in all leads & lifts including restoration of unmetalled surfaces to its original condition & including cost of diversion for traffic,night signals, fixing caution boards, crossing over trenches for access to houses, fencing etc. complete in all respects with in all leads & lifts as per the entire satisfaction & directions of Engineer- in- charge.

Laying,jointing, testing and carriage in trenches of GI Pipe, of Medium Class, (to be leveled to grades) IS marked with circumfrential butt welding of following diameters and class, conforming to IS1239-1991(Part-II) , grade specified below (Latest with up to date ammendments) having minimum wall thickness as specified below bevelled ends and capable of with standing required test pressure in a random length of 4 to 7 mtrs, including manufacturing reducers/ tapers , all shots pieces, bends ect. as per site requirement made from parent tubes. The laying of pipe will include all operation such as cutting, welding, jointing fabrication of bends, tees ect. including lowering and laying in excavated trenches to ensure required level including flushing, cleaning and hydraulic testing complete in all respect to the entire satisfaction Engineer in charge. The fabricated bends shall have three or four cuts having its radius not less than five times the dia of pipes. The pipes shall be factory galvanized( zinc caoting both inside & out side ) as per relvent IS standards. The welding electrodes shall be as per IS 814 of Advani/ Oerlikon/L&T or ISI marked make . The rates also includes entire carriage of material, flushing, cleaning & hydraulic testing complete to the best satisfaction & direction of Engineer in charge .The rates also include the carriage of GMS tube from the Jal Shakti Divisional store Baggi to the site of work.(earth work in trenches will be made and paid for seprately)

GI Pipe 150mm dia - 4.80mm thicknes (Medium class)

SUBMERSIBLE STAGE :- Supply of Polder type (submersible) Mono Block pumping set of KSB/ Calam/ SU/ Johnsion make pump confirming to latest relevent BIS code.The pump should be fitted with bronze impellers or of suitable alloy as per BIS 5659-1972 latest suitable for raw water of IS: 5669-1970 having greased packer bearings & 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 (water proof type) of required HP, RPM 1450 of reputed make confirming to BIS 9287-1979 latest with up to 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 bearings & 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 heating of motor. The pump set should include water level guards, errection clamps,cable clips & depth gauge etc. & suitable for operation on data given below:-

A) SITE CONDITIONS:- Location of site- About 10 Kms. from Gohar Pandoh road (at village Sainj) The altitude of place in which the motor is intended to work in ordinary service if it exceeds 1000 mtrs ( i.e. =1062 Mtrs)-.Humidity-Weather generally remains humid during monsoon season. Nature of atmosphere- As normally encountered in Shivalik Ranges. Detail of quality of water- clear cold water. Water free from sand or not-Yes. Water corrosive or not- No.Turbidity- Clear cold water. NPSH available - N.A. Any other information or requirement - B).OPERATING CONDITIONS:-Type of current-A.C Three/Single phase.Operating frequency-50 HZ. Rated voltage-415(+ / -) 10% volts.System of earthing if any to be adopted-Double loop earthing as per BIS-3043-1987 latest with upto date ammendments. , Speed of revlution: To be quoted by tenderer, Driection of rotation:- to be quoted by tenderer ,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 pumpset is intended to work in ordinary service.- 35 Degree centigrate. C). MOTOR:- Ref. to BIS code-BIS 325-1978 read with BIS 900-1992 (latest) with upto date ammendments.Type of enclosure of motor with BIS 4691-1985 -SPDP (As per BIS 4691-1985, Latest).Type of duty-Continuous. Mechanical out put in KW-Suitable for driving submersible 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/F .Max. permissible temp. rise of motor reqd. if different from that given in B (viii) above.-To be specified by the tenderer. Particulars of test required & where they are to be conducted.-As per terms & conditions attached.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:- Start delta starter upto 37.5KW & ATS for 37.5 KW & above & stator rotor starter with slip ring motor beyond 50 KW.Motor whether squirrel cage or slipring -Squirrel cage:-Note:- Squirrel cage upto 65HP & slipring above .

Details of shaft extension required.-Just sufficient to provide direct drive by flexible coupling to pump.Type of slipring gear whether continously rated or for starting purposes only and whether to be fitted with brush lifting or short circuiting arrangements or both if interlocks are required-Continously rated for squirrel cage 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 required 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.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 of permanent deformations. D ) PUMPS:BIS 1520-1980,read with BIS 9137-1978 both latest with upto date ammendments.Nos of pumps reqd.-1 No. pump ( one will act as stand by).Spare parts required-For Two years normal maintenance as recommended by manufacturer. type of drive:- Electric induction motor , Optional fittings reqd.-Air cock for exhausting air from each stage.E) Pump operating conditions.Capacity-18.35 LPS/ Set. Total head in Mts.-17.62 Mtrs.(If total head in not known then following details be provided):Static Head- 10.00 Mtrs.Minimum depth of water-………….Mtrs.Variation in water level.-………….Mtrs.Ground level to max. water level-1412.00Mtrs.Ground level to delivery point-1350.Mtrs.Pressure in the suction tank-…………..Kg/cm/2.Pressure in the delivery tank-…………..Kg/cm/2.Length of R/main-250 mtrs..Dia of R/main-150 mm Dia (MC).Drive arrangement-Direct through flexible coupling on a common base plate.Drive type-Electric driven.NPSH required:-To be quoted by 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( 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 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. Note :- Star delta- starter upto 37.5 KW, ATS between 37.50 KW to 50KW and starter 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 reating 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 suitabe capacity of Kilburn/LT/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 make i.e 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.

Supply of Kirloskar/Kilburn/IVC/Fouress/Gled/Bhel/Leader/pelican/KSB make of suitable size of Cast Steel double flanged sluice valve having size one step higher to delivery of pump and capable of with standing nominal seat pressure as per BIS 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/Gled/Bhel/Leader make of suitable size cast steel double flanged swing check type reflux valve having bye pass arrangement & size one step higher than the delivery of Pump for withstanding nominal seat pressure of 52 Kg/cm^² NOTE:- The reflux 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/Gled/Bhel/Leader/Kartar make of suitable size 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 reflux 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/Jyoti/Standard/kilburn make Cast Iron flanged strainer of dia equal to dia of suction pipe confirming to BIS 4038-1986 latest with up to date ammendments.

Supply of Kirloskar/Kilburn/IVC/Fouress/Gled/Bhel/Leader/Kartar make of suitable size Cast iron double flanged sluice valve having size equal to dia of suction pipe and capable of withstanding nominal seat pressure as per BIS. 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)

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 suitable size PVC insulated armoured power three 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 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 & errection 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.

Providing, laying of suction, delivery pipe considering site requirements, NPSH required & available & common header having area equal to two times the area of delivery branch of pump oe equal to dia of rising main (which ever is higher) including tapers, flanges, rubber gaskets, 3mm thick as per BIS-2712-1978 nuts & bolts as per 1364-1983 & special up to 5 mtrs. away from the outer wall of pump house as per layout drawings approved by Engineer-in-Charge. The pipes shall be capable of with standing 1.50 times the total pressure indicated in item No. 1e(ii).Note :- Actual laying to be done as per final drawings to be approved by the Engineer-in-Charge.

Suction side

Delivery side

Errection of all equipments from S.No. 2 to 12 i/c cost of tees, bends tapers & any other fittings required as per site conditions & as per directions of Engineer-in-Charge.

General Machinery Corporation (BID ID -505188)