Supply and errection of submersible pumping machinery with allied accessories and laying jointing and testing of rising main 65 mm diameter

Amount

Supply of submersible pumping set of KSB/Calama/Sabar/BS/Luby/Cromption make conforming to BIS; 8034-1978 latest suitable for lifting clear water (latest with uptodate ammendments) fitted with bronze impellers/suitable alloy directly coupled to squirrell case electric induction motor of same make as (manufacurer standard) conforming to BIS; 9283-1979 (latest with uptodate ammendments) and totally water proof for submersible duty & provided with stainless steel thrust bearing plate to with stand 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 including water level guard,errection clamps,cable clips & depth gauge etc. The pump shall be suitable for operation on data given below:-

A) SITE CONDITIONS i)Location of site About 18 Km. from Kangra Railway station and 100 meters by head load. ii)The altitude of place in which the motor is intended to work in ordinary service if it exceeds 1000 mtr. Altitude of place is 900 m above MSL 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 corrosive or not No viii)Turbidity (if any) Clear cold water. ix)NPSH available:N.A. x) Any other information or requirement ----

B) OPERATING CONDITIONSi) 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 16 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 pumpset is intended 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 up to date manedments. 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 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. v) Class of insulation Class -B- vi) Max.permissible temp.rise of motor reqd. if different from that given in B (viii) above. To be specified by the tenderer vii) Particulars of test reqd. & where they are to be conducted. As per terms & conditions attached 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 for 37.5 KW to 50 KW & stator rotor starter with slip ring motor beyond 50 KW. ix)Motor whether squirrel cage or slipring Squirrel cage. Note: Squirrel cage up to 65 HP & slipring above 65 HP. x) Details of shaft extension required. Just sufficient to provide direct drive by flexible coupling to pump. xi)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/ slippering 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. 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.

D) PUMPS: BIS: 1520-1980, read with BIS 9137-1978 both latest with up to date amendments. a) Nos of pumps reqd. 2 Nos. pump b) Spare parts required For two years normal maintenance as recommended by manufacturer. c) Optional fittings reqd. Air cock for exhausting air from each stage.

E) PUMP OPERATING CONDITIONS i) Capacity 2.33 LPS/ set ii) Total head in Mts. 73.38 Mtrs. ( If total head is not known then following details be provided) :- i) Static head 62.50 Mtrs. ii) Minimum 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) Pressure in the suction tank …………. Kg/cm^2 vii) Pressure in the delivery tank …………. Kg/cm^2 iii)Length of R/Main 550 mtrs. iv)Dia of R/Main 65mm Dia v)Drive arrangement:Direct through flexible coupling on a common base plate. vi)Drive type Electric driven vii)NPSH requiredTo be quoted by contractor. 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/star rotor starter of standarad make such as MEI/Kilburn/Jyoti/ Siemens conforming to BIS-8544-1979 latest with up to date ammendments for squirrel cage/slipriing 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 50 KW.

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 accessaries 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 immediatly 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 ammendments.

MCB/Oil circuit breaker of suitable 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 up to date ammendments.

Earth leakage circuit breaker of recommended (Kilburn/L&T/MEI/GEC as per BIS-2516-1977 with upto date ammendments and of suitaible range with which should have control box, operating handle 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 tap CTS. It should also be fitted with earth fault for tripping of breaker on occurance of earth fault on/ off 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.

Single phase preventor of reputed make & suitable capacity

Supply of Kirloskar/Kilburn /IVC/Fouress/Gled/BHEL/Leader/Kartar make Cast lron double flanged accutated sluice valve of Class PN 1.6 confirming to BIS-1414 (API-600) (to be provided on delivery side) of equal size to one dia more than the dia of delivery of pump and capable of with standing nominal seat test pressure of 21 kg/cm².

Supply of Kirloskar/ Kilburn/IVC/Fouress/Gled/BHEL/Leader make Cast iron double flanged Reflux Valve having bypass arrangement of Class PN1.6 confirming to BS 1868(API-600) (latest edition) to be provided on delivery side of size one step higher than the delivery size of pump and shall be suitable for withstanding nominal seat pressure of 21kg/cm². (ASA-150).

Providing & laying PVC insulated jointless, flat water proof copper cable of Siemens/ Finolex/Grandlay/ Gloster make conforming to BIS:1554 (Part I) -1988 or latest with up to date ammendments of suitable size for the pump sets offered(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 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.

On supply side of 3½ core( From HPSEB Meter to Switch & Starter) = 5 mts of Size 6 mm2

On motor side 3 core ( From Switch & Starter to Motor) = 35 mts. of Size 4 mm2

Providing and lying double loop earthing with coper plate 600x600 x3 thick electrode and copper strip of 25x3 complete including providing of material such as charcoal, common salt, GI pipes, thimbles, nuts & bolts, digging of pits, Copper /GI wire/ Strips of required capacity conforming to BIS 8034-1978 latest with upto date ammendments for above motor & other electriacl equipments including all civil works. (for both machineries).Note. The strip size shall be 20x3 upto 18.5 KW . 25x3 for 18.5 to 37 KW to 55 KW and 32x5 beyond 55 KW.

Supply and errection of floor power 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 requirement KVAR according to HP of motor offered including cable Siemens/ Gloster/ICC make from busbar chamber chamber to capacitor & also including Standard/ L&T/Kilburn/Indoasian make ICTP switches conforming to BIS 4064- 1978 or latest with HRC fuses.

Supply of standarad make 100 mm dia square 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 up to date ammendments.

Providing and Laying of G.I. pipe (M) Class of suitable size for suction delivery and Colmmon header considering site requirements and NPSH required / availlable. The pipe size for suction and delivery shall as per the requirement of offered pump (to be given by the tenderer) and common header shall be equal to dia of Rising main including tapers flanges, bends, rubber gasket 3mm thick, nuts & bolts and specials upto 5 meters away from the outer wall of pump house as per layout drawing approved by Engineer-in-Charge. The pipes material shall confirm to relevant BIS code and capable withstanding field test pressure equal to 1.5 times the operating pressure. The complete arrangement section pipe.

Erection of all equipments including cost of tees, bends, tapers & any other fittings required as per site conditions & as per directions of Engineer-in-charge.

Excavation in foundations,trenches etc in earth work in all kind of soil, such as pick work, jumper work, blasting hard or soft rock by chiselling where the blasting work is prohibited slushy daldal and saturated soil including pumping or bailing out water with in all heights, stacking the excavated soil with all leads clear from the edge of excavation and then returning the stacked soil in 15cm (fifteen centimetres) layers, when required into plinths, of foundations etc consolidating each deposited layer by ramming and watering and then disposing of all surplus excavated earth, as per the direction of Engineer-in-Charge with in all leads and lifts.

Laying, jointing & testing of GMS (plan ended pipe) with 100% flanged joints by electrical arc welding with minimum two layers capable to withstand required test pressure (minimum welding thickness shall be equal to pipe wall thickness) including manufacturing and fabrication of reducers/ tapers, all short pieces, bends of required degree as per site requirement made from parent tubes. dully welded in three layers (two for outer & one on inner side) and all other operation such as cutting, cleaning, welding, jointing, fabrication of bends, tees etc, lowering and laying in excavated trench to ensure required level i/c flushing, cleaning, and hydraulic testing complete in all respect including all leads and lifts as per the direction and to the entire satisfection of Engineer-In-Charge.65mm Dia, Table-17

Providing and fixing of double flanged Cast Steel Reflux/Non Return Valve of following diameter Kirloskar/Leader make confirming to BS 1868 , class ASA-150 (API-600) for capable of with standing nominal seat test pressure 21kg/cm² complete in all respect as per the direction and to the entire satisfaction of Engineer-in-Charge with all leads and lifts.65 mm dia

Providing and Supplying of double flanged Cast Iron Sluice Valve of following dia Kirloskar/Leader Make (with hand wheel) PN-1.6 as per IS Code-14846-2000 latest upto date ammendments standard make with bols, nuts, rubber insertion etc. (The tail pieces if required shall be measured & paid for separately) complete in all respect as per the direction and to the entire satisfaction of Engineer-in-Charge with all leads and lifts.65 mm dia

Jeet Kumar (BID ID -506702)

Surinder Singh (BID ID -506718)