Improvement of drinking water facilities to Harjan Basties in village Manoh Upper Village Bhebal under LWSS Karohata in Tehsil Bhoranj Distt Hamirpur HP

Amount

Excavation in foundation and trenches etc. (for pipe and pits) in all depth and in all kind of soil such as pick work, jumper work, saturated soil, blasting soft and hard rock, chiseling soft and hard rock where blasting is prohibited in all lead and lift including trimming and dressing of side, leveling of beds to correct grade stacking the excavated soil after laying, jointing and testing of pipes, returning the useful soil trenches in 15 cm layers including consolidating each deposited layer by ramming and watering and then disposing of all surplus excavated as per directed with in all leads and lifts shoring, strutting timbering and dewatering where ever required including restoration of paved surface to its original condition etc. complete in all respects within all leads and lift as per direction of Engineer-in-charge.

Laying, jointing and testing in trenches (to level or grade)G.I. flenged/butt welded pipes of following dia (Medium class) conforming to IS 1239-1990 (Part - I )( latest upto date amendments ) of grade and wall thickness as specified below, suitable to withstand required hydraulic test pressure in randum length 4m-6m with plain ends and jointed with MS Flanges conforming to IS 6392-1971(Latest upto date amendments) and welding of flanges as per IS 816-1969 with electrodes as per IS 814-1991 including required number and size of MS nuts and bolts as per IS 1369-1967 and compressed asbestos fibre jointing gaskets sheet not less than 3.00 mm in thickness as per IS 2712-1998 & weldede joints. The welding of flanges to be done on both faces in two layers on outer face & one layer one inner face to make the joinhts leak proof and to the entire satisfaction of the Engineer-in-Charge.The laying of pipes conforming to IS 5822-1994 and as per CPHEEO manual and will include all operations such as cutting, welding and jointing including flushing, cleaning and hydraulic testing complete in all respect to the entire satisfaction of Engineer-in-charge including entire carriage of materials upto all leads and lifts. (Earth work in trenches, welding of flanges/butt welding will be measured and paid for seperately)

GMS pipe 50mm dia meter (M-Class) 3.60mm thick

Providing, welding & fixing of M.S. flanges of every 5% joint of total joints confirfming to IS 6392-1971 (Latest with upto datge amendments) of following tables with GMS Tubes in three layers (one inner two outer) on both faces to make the joint leak proof ( the cost of providing and laying of G.I. pipe to be measured and paid for separeately). The welding of flanges should confirm to IS 816-1965 with electrodes as per IS : 814-1967 and required number of nuts & bolts conforming to IS: 1364. The thickness of gasket not less than 3.00mm conforming to IS : 2712-1965. The work shall be done as per entire satisfaction of Engineer-in-Charge within all leads and lifts.

M.S.Flange 50mm dia (Heavy class) table-28

M.S.Flange 50mm dia (Medium class) table-17.

M.S.Flange 50mm dia (Medium class) table-5.

Providing circumferencial Butt welded joints to following diameter and class of G.I. pipe as specified above, welded with requisit of welding (According to wall thickness of pipe) by using 3mm to 4mm special electrodes of Advani oreion (Adore)/ESAB make with Generator and winch and crab/loader at site. (The cost of providing and laying of G.I. pipe to be measured and paid for separately). The wleing of flanges should confirm to IS 816-1965 with electrodes as per IS: 814-1967. The work shall be done as per entire satisfaction of Engineer-in-Charge with in all leads and lifts.

GMS pipe 50mm diameter Medium class.

Providing and fixing double flanged Cast steel Non return valve of 50mm diameter of Leader/Kirloskar make to rising main confirming to BS.1868 API 600 as per class given below and capable of with standing 21.0Kg/cm2 seat pressure ASA-150 with upto date ammendments.

Providing and fixing of screwed C.I. Air release valve 25mm dia single ball type Leader/Kirloskar make confirming to BS 1452-90 with upto datge ammendments as per Class PN 10.0 to with stand a seat pressujre of 11.22 Kg/cm2.

Supply of submersible pumping set of KSB /Calama/SU/OSWAL/Kirloskar make comprising to latest relevant BIS Code. The pump should be fitted with C.I. impeller of suitable alloys as per IS 8034-1976 latest suitable for clear Water having greased packed bearings and shaft with wound stator on motor side and with soft protection sleeve on pump side ensuring better life for shaft coupled to a submersible squirrel cage electric induction motor (water proof type) of required HP, RPM 2900 of reputed make conforming to BIS: 9238-1979 latest with upto date amendments, totally dust and water proof for submersible duty isolated from the pump by intermediate casing with double mechanical seal in oil chamber and grease packed lubricated bearings and provided with stainless steel thrust bearing plate to with stand non vertical loads with minimum wear and 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 guards, erection clamps , cable clips and depth gauge etc. and suitable for operation on data given below:-

SITE CONDITIONS:-

Location of site:- Intake tank

The altitude of place in which the motor is intended to work in ordinary service.- 560.00 mtrs.

Humidity:- Humid during rainy season

Nature of atmosphere:- Normal

Detail of quality of water:- Clear water

Water free from sand or not:- Free from sand

Water corrosive or not:- Not corrosive

Turbidity:- < 50 ppm

Type of well:- Percolation well

Inside dia of well:- 6.00 m. dia.

Depth of water during HFL in the well:- 10.00 m

Maximum draw down:- Expected 1.00 mtrs.

Depth of well :- Percolation well 10.00 mtrs

Any other information if required.

OPERATING CONDITIONS

Type of current:-AC. Three phase

Operating frequency 50 Hz.

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

System of earthing if any to be adopted Double loop earthing as per BIS: 3243-1987 latest with upto date amendments .

Speed of revolution To be quoted by tenderer

Direction of rotation : To be quoted by tenderer .

No. of working hours per day. = 8 Hours

The maximum temperature of cooling air and water in the place in which the pump set is intended to work in ordinary service = Temperature of place to be specified 200C to 420C.

MOTOR

Ref. to BIS code ; BIS: 9283-1979 with upto date amendments

Type of enclosure of motor. ; As per BIS:4691-1985 (Latest)

Type of duty : Continuous

Mechanical output 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 output to prime Mover.

Class of insulation : Class –B

Max. Permissible temp. Rise of motor reqd. if different from that given in 8 (viii) above. = To be specified by the tenderer.

Particulars of test reqd. & where they are to be conducted = AS per terms and conditions attached.

Particulars as to whether voltage limiting device will be employed = Oil immersed star delta starter 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 37.50 Kw.

Type of motor = As per BIS 9283-1979 or latest.

Details of shaft extension required

Break way torque in terms of rated load torque and the corresponding break-way starting current which may be taken from the supply with the starting apparatus in circuit :Break way 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 and 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 accelerated and 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 2.5 times the rated current for two minutes without suffering damages or permanent deformations.

PUMPS

Nos. of pumps required = 2 Nos. pumps, out of which one set will work at a time and one set will act as stand bye.

Spare parts required = For two years normal maintenance as recommended by manufacturer.

Type of drive =Electric induction motor.

Optional fittings required

Pump Operating conditions

Capacity = 1.77 LPS for each Pump

Total head in meters = 188.66 Meters.

Static head = 132.52 Meters.

Minimum depth of water

Variation in water level = Meters

Ground level to Max. water level = Meters

Ground level to delivery point = Meters

Pressure in the suction tank. = Meters

Pressure in the delivery tank = Meters

Length of rising main = 1345.00 Meters

Dia of rising main = 50mm

Turbidity of water < 50 PPM

Drive type = Electric driven

Limits of total head in which the pump is required to operate. (-) 25% 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 Soft starter of Seimen/L&T make conforming to BIS: 8544 - 1979 latest with upto date amendments for squirrel cage motor (make to be specified by the tenderers) mounted on panel board with magnetic type over load release and dashpots, time legs under voltage release & initial oil filing of suitable capacity.= 2 Nos

Supply of MS. Angle iron steel sheet 16 SWG fabricated floor mounting closed (Almirah type) switch board comprising and capable of mounting the following accessories and with all internal electric connections, duly painted. The drawing of panel board shall be subject to approval of Engineer-in-Charge. = 1 No

ICTP switches with HRC fuses of Havells/L&T/standard /cromption make for required motor of suitable capacity and conforming to BIS: 4064 -1978 latest with upto date amendments. = 2 Nos

Bus bar chamber having 3 copper bars of suitable rating for full length of 3 phases and one bar of half the rating of full length for neutral conforming to BIS: 8084 –1976 and 11353-1985 read with 5578-1985 all latest with upto date amendmentsof suitable rating. = 1 Set

MCB of suitable capacity of Havells/standard/MDS/Jyoti make to feed motors offered by the tenderer conforming to BIS: 2516 -1985 latest with upto date amendments with neutral linked under voltage release.(40 Amp.) = 1 No

Three phase indicator lamps complete with toggle switches for individual motors conforming ti BIS 3452 Part I & II latest with up to date amendments of 15 watts. = 1 Set

50 mm dial Hour run meter of CEE/NEE make of suitable range as per relevant BIS specifications. = 2 Nos

Supply of Kirloskar/leader make dia. Cast Steel (class ASA 300) double flanged sluice valve having size one dia. Higher than pump size to delivery of pump and capable of with standing nominal seat pressure of 52.00 kg/cm2 as per BS :1414 (Head i/c water hammer effect). = 2 Nos

Supply of Kirloskar/leader make dia. Cast Steel (class ASA-300) double flanged ( swing check type) reflux valve having bye pass arrangement and having one dia. Higher than pump size to delivery of pump and capable of withstanding nominal seat pressure of 52.00 kg/cm2 as per BIS: 1868 (Head i/c water hammer effect). = 2 Nos

Providing and laying suitable size copper PVC insulated armoured power 3.5 core cable conforming to BIS 1554 (part-I) –1988 of latest with upto date amendments siemen/Havells/National make form meter of HPSEB- to MCB and form MCB to Bus bar switch and starter & motor (one cable carrying all three phases) including all other electrical equipment / accessories such as thimbles, flexible pipe solder, nuts and bolts, cable glands, etc. laid in pipes of 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.

Supply side Suitable sizes. = 4.00 mm2. =10 Rmt = Job

Motor Side Suitable sizes. = 4.00mm2. = 20 Rmt = Job

Supply of Leader /Kirloskar make 50 mm dia. Cast Steel ASA-300 double flanged (swing check type) reflux valve having bye pass arrangement and size equal to dia of rising i.e. 50mm for withstanding nominal seat pressure of 52.00 Kg/Cm 2 as per BIS:1868 (Head i/c water hammer effect). = 1 No.

Supply of PVC joint less flat water proof cable as perBIS: 694-1990 latest with upto date amendments suitable for the pump sets offered from MBC to motor including all other electrical equipment/accessories such as thimbles, flexible pipes solder, nuts and bolts, cable glands etc laid in pipes of 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. = Job

Providing and laying double loop earthing with G.I. wire & G.I plate complete with material such as charcoal, common salt, GI. Pipes, thimbles, nuts and bolts, digging of pits, GI. Wiring and aluminum strips of required capacity conforming to BIS: 3043-1987 latest with upto date amendments for above motors and other electrical equipment’s. = Job

Supply of standard make circular dial pressure gauge 0-52 kg/cm2 range of feibig make with all accessories such s stop cock, copper tubing etc, conforming to BIS: 3624-1987 latest with upto date amendments. = 2 Nos

Providing and laying delivery pipe 50 mm dia. and common header 50 mm dia GMS Tubes (Medium class) (IS:1239-1979) jointed with MS flanges of Table -5 as per BIS: 6392-1971 (upto a length of 20 mtrs ) including rappers, flanges, rubber gaskets, nuts and bolts and specials upto 5 mtrs away from the outer wall of pump houses as per layout drawings approved by Engineer-in-Charge.= Job

Supply of floor/wall mounted power factor shunt capacitor conforming to BIS: 2834-1986 latest with upto date amendments Bajaj / L&T / cromption make to raise the prevailing power factor at site to 0.95 for direct connection to induction motor individually of suitable rating each including cable of siemens/National/Havells make form bus bar chamber to capacitor and also including L&T/LK/Kilburn make ICTP switches conforming to BIS :4064 (Part-II) -1978 or latest with HRC fuses (range to be specified by the tendrerer). = 2 Nos

Supply of suitable cable for water level guard. = Job

Supply of supporting clamps. = Job

Supply of cable clips of required size. = Job

Erection of all equipment from Sr. 7 to 10,12,13,15,17 to 20 including cost of tees, bends, tapers and any other fittings required as per site conditions and as per direction of Engineer-in-charge. = Job

RAJE ENGINNERING WORKS

VINAY KUMAR SHARDA