Providing LWSS Banadhar to Tandi (Gagan) in GP Murah Tehsil Balichowki Distt. Mandi HP

Amount

Excavation in foundation trenches (For pipes & pits upto all depths) in all classification of earth work such as pick work jumper work saturated soil including balling out water blasting soft/hard rock or chiseling soft/hard rock where blasting is prohibited in all lifts including trimming dressing of sides leveling of bed to correct grade including shoring strutting planking timbering and dewatering where ever required stacking the useable/serviceable material/soil separately and after laying jointing and testing of pipes returning the useable soil in trenches in 15cm layers including consolidating each deposited layer by ramming and watering and then disposing of all surplus excavated soil useable materials as directed within all leads/lifts including restoration of unmetalled surfaces to its original condition and including cost of diversion for traffic night signal fixing caution boards crossing over trenches for access to houses fencing etc. complete in all respect within all leads/lifts as per direction of the Engineer in charge.

Providing , laying, fixing, jointing and testing in trenches of Flanged API pipe of following dia meters confirming to IS 3183-2014 of steel grade L-290 with latest upto date amendments, of following grade and having wall thickness as specified below with plain end and capable of with standing required test pressure in random length of 4 to 7 meters, including specials, short pieces, bends, reducers, tees etc. made from parent tube, providing and welding of MS flanges detailed as below. The MS flanges shall confirm to BIS 6392-1971 (with latest up to date amendments) duly welded in three layers (one inner and two outer) with pipes at both ends as per relevant BIS standards along with nuts and bolts of required sizes, 3mm thick compressed asbestos fiber/synthetic rubber gaskets confirming to relevant BIS standards. The laying of pipe will include all operation such as cutting, welding, jointing, providing & fixing of MS flanges, fabrication of bends, tees etc. including lowering and laying in excavated trenches to ensure required level including flushing, cleaning and hydraulic testing complete in all respects to the satisfaction of the Engineer in charge. The fabricated bends shall have three or four cuts having its radius not less than five times the dia of pipe. The pipes shall be factory galvanized (zinc coating both inside and outside) as per relevant IS standards and the damaged portion of the pipes and specials made form the parent tube shall be provided anticorrosive treatment by applying two coats of anticorrosive bituminous paint over a priming coat as per AWWA specifications C-203-1978. 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 & directin of Engineer in charge with in all leads and lifts. (Earth work in trenches will be measured and paid for separately).

65mm dia,. IS 3183-2014, L 290, API, wall thickness 4.00 mm , Table-34, RD 0 to110 mtrs

Providing, Laying jointing and testing in trenches to be levelled to grades,BIS marked API pipe factory galvanized with butt welding of following diameter conforming to BIS 3183-2014 (latest upto date amendments) having minimum wall thickness as specified below of steel grade L-290 pipe jointed with butt welded including all short pieces, bends, tees and other special etc made from parent tube and welded with flanges of tables as applicable for the particular reach and of approved specifications as per site conditions including flushing, cleaning, painting and hydraulic testing complete ito the best specification of the Engineer-in-Charge. The pipe and special shall have factory galvanized as per IS 4736 (latest upto date amendments) in all leads and lifts.

65mm dia, IS: 3183-2014, API, L-290, wall thickness 4.00 mm, RD 110 to 950

Laying, jointing and testing in trenches to be leveled to grades, IS marked GI pipes of following diameters confirming to IS: 1239-1990 ( Part-II) (latest with upto date amendments ) having minimum wall thickness as per class of pipe specified below jointed with butt welding to done on both ends according to relevant BIS standards and detailed specifications including al kinds of short pieces, bends, tees and other special etc. made from parent tubes and jointing with butt welding in three layers as applicable for the particular reach and of technical specification as per site conditions including flushing, cleaning and hydraulic testing as per the direction of the Engineer-in-charge.

GI pipe 65 mm dia (HG) RD 950 to 2150

Providing horizontal spindle, vertical split casing , single/double/multistage centrifugal pump of standard make i.e. KSB/ Mather & Platt / Kirloskar conforming to BIS 1520/1980 latest of Combination of pumps working in parell or series ( as the case may be to achieve NIT dities ) with up to date amendments read with IS 9137 -1978, latest to handle clear cold water of following characteristics. Pump shall be fitted with Bronze Impellers, , casing ring & shaft sleeves of steel of minimum 45C 8 grade, Cast Iron / steel casing, coupled directly through flexible coupling on common base plate to Kirloskar / CG Power/ ABB/ Siemens / Marathon make SPDP Squirral cage electric induction motor . It should include cost of wiring nut & bolts painting etc complete and should meet the following requirements:-

SITE CONDITIONS:- (I) Location of site At Existing pump house of LWSS Dhadwas (ii) The altidue of place which the motor is intended to work in ordinary service if it exceeds 1000 mt. (iii) Humidity Whether generally remains humid during monsoon season (iv) Nature atmosaphere 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) Upgto 50 PPM (ix) NPSH available --- (x) any other information or reqirement

OPERATING 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 to be adopted. Double loop earthing as per BIS 3043-1987 latest with upto date ammendments (v) No. of working hours per day:- 8 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.:- 20 Degree Centigrade

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 ~F~ (vi) Max.permissible temp.rise of motor reqd. if different from given in B(viii) above - (vii) Particulars of test reqd. & where they are to be conducted:- As per terms & conditions (viii) Particulars as to whether voltage limiting device will be employed. ATS/Star delta starter /Stator Rotor starter oil immersed, fully automatic to be installed between bus bar chamber and motor shunt capacitor is also proposed to be installed for improving the power factor at site. (ix() Motor :- Squirrel cage/slipring (x) Details of shaft extension reqd.:- Just sufficient to provide direct drive by flexible coupling to pump. (xi) Type of slip-ring gear whether continouly rated or for starting purposes only & whether to be fitted with brush lifting or short circuit arrangements or both if interlocks are rquired.:- 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 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 (xiv) Where possible fault capacity of the system to which the motor is connected.:- The motor should be able to withstand initial current of 2.5 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 (a) Nos of pumps reqd.:- 2 Nos pump ( 1 working and 1 stand bye) (b) Spare parts required:- For 2 years normal maintenance as recommended by manufacturer.(c) Optional fittings reqd.:- Air cock for exahausting air from each stage

PUMP OPERATING CONDITIONS:- (i) Capacity 3.15 LPS by each pump (ii) Total head (in Mts).:- 580.68 mtrs. If total head is not known then,following details be provided Static head 511.00 mtrs),ii) Minimum depth of water( in mtrs),iii) Variation in water level ( in mtrs),iv) Ground level to max. water level 1835 mtr ,v) Ground level to delivery point 1324 mtrs),vi) Pressure in the suction tank (in Kg/cm^2 ),vii) Pressure in the delivery tank (in Kg/cm^2 ) (iii) Length of R/Main (in metres):-2150 mtrs (iv) Dia of R/Main (in mm):- 65 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.:- (-) 15% 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) (-) 15 % head (xi) Material of construction:- To be specified by the tenderer (manufacturer~s certficate to be appended)

Supply of suitable oil immersed star delta starter/ATS/Staror 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.

Supply of DOL starter panel for booster pump ( if pumps working in series is offered ) Note:- Star delta starter upto 37.5 KW, ATS between 37.5 KW to 75 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 electric connections. The drawing of panel board shall be subject to approval of Engineer-in-charge.

(c1 ) ICTP switches with HRC fuses Kilburn/Larsen & Turbo/Standard/Siemens 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.

(c1 ) ICTP switches with HRC fuses Kilburn/Larsen & Turbo/Standard/Siemens/Mex 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.

(d) 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 ammendments.

(e)Oil circuit breaker/MCCB of suitable capacity of Kilburn/L&T /Standard / ABB make on in common feeder for motors offered by the tendrere conforming to BIS 2516-1985 latest with upto date ammendments with neutral linked under voltage release.

(f) 3 phase indicating lamps complete with toggle switches for individual motors conforming to BIS-3452 part-I & II latest with upto date ammendments.

(g) Earth leakage circuit breaker of recommended (Kilburn/L&T/MET/GEC as per BIS- 2516-1977 with upto date ammendments 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 tap CTS. It should also be fitted earth fault for tripping of breaker on occurance of earth fault on/off breaker load side.

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

(I) Suitable three phase voltage monitor relay with all protections & usual indicators with electrical sirens against single phasing no voltage, high voltage & over loading & phase voltage differenece.

(j) Change over switch of reputed make and suitable capacity

(k) Single phase preventor of reputed make & suitable capacity

Supply of Kirloskar/Kilburn/IVC/Fouress/Gled/BHEL/Leader/Pelican of reputed make of cast steel Class ASA-600 double flanged sluice valve having size one step higher to delivery of pump and capable of withstanding nominal seat pressure of 52kg/cm^2 conforming to BS 1414. Note:- The sluice valve shall conform to BIS 780-1984 latest with upto 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)as per BS 1414 (API 600) class 600 ASA (Seat pressure 104kg/cm^2) Kartar make is only for Cast Iron valves)

Supply of Kirloskar/Kilburn/IVC/Fourcess/Gled/BHEL/Leader/Pelican of cast steel class ASA-600 double flanged swing check type reflux valve having bye pass arrangement & size one step higher to delivery of pump for withstanding nominal seat pressure 101 kg./cm^2. conforming to BS: 1414-API 600 Note:- The sluice valve / NRV shall conform to BIS 5312-1984 latest with upto date ammendments. However if the seat pressure exceeds the limits prescribed in BIS 5312 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 101 kg/cm^2) as per BS 1414 (API 600)

Supply of Kirloskar/Kilburn/IVC/Fourcess/Gled/BHEEL/Leader make of cast steel class ASA-600 double flanged swing check type reflux valve having bye pass arrangement & size equal to dia of R/Main i.e.65mm dia for withstanding nominal seat pressure of 52kg/cm^2 conforming to BS: 1414-API 600 Note:- The sluice valve shall conform to BIS 780-1984 latest with upto 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/IVC/Fourcess/Gled/Leader/Kartar make of cast iron double flanged sluice valve having size equal to size of suction of pump and capable of withstanding nominal seat pressure of of suitable 10kg/cm^2

Supply of Kirloskar/Jayoti/Standard/Kilburn make of cast iron flanged screwed type foot valve/ stainer of dia equal to dia of suction pipe conforming to BIS 4038-1986 with up to date ammandment.

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/Havells/Finolex/Standard 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 and bolts, cable glands etc. 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.

Providing and laying 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 electircal 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 of cost. This should include cost of cable for booster pumpset also.

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

Supply & erection of floor/wall mounted power factor shunt capacitor conforming to BIS 2834- 1986 latest with upto date ammendments L&T/ Havells j make to raise the prevailing power factor at site to 0.95 for direct connection to inductiion 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

P/L delivery pipe and suction pipe considering site requirements, NPSH required and available & common header having area equal to two times the area of delivery branch of pump including tappers, flanges, rubber gaskets, 3mm thick as per BIS-2712-1978 nuts and bolts as per 1364-1983 & special upto 5 mtrs. away from the outer wall of pump house as per layour drawings approved by the Engineer-in-charge. The pipes shall be capable of withstanding 1.5 times the total pressure indicated in item No.5 E(ii) Note:- Actual laying to be done as per final drawings to be approved by the Engineer-in-charge.

Errection of all equipments from Sr. No. 5 to 8 and,10 to 12 including cost of tees, bends, tapers & any other fittings required as per site conditions & as per direction of Engineer-in-charge.

competent associates

SANGRAM NAIK

Naik Electrical Works