Retrofitting and improvement of LWSS Chanobri Lehri in Tehsil Nalagarh District Solan HP Sub Head Laying jointing testing and commissioning of Rising main and providing and erection of submersible pumping machinery Under JJM

Amount

Excavation in drain and channels etc. earth work for pipes upto all depths in all classification of earthwork such as pick work, jumper work, saturated soil including bailing or pumping out water, blasting soft/hard rock or chiseling soft/hard rock where blasting is probihited in all lifts including jungle clearence wherever required, trimming & dressing of sides, levelling of beds to correct grade including shoring/struting, planking , timbering & dewatering wherever required stacking the useable/unuseable material/soil seperately & after laying, jointing & testing of pipes, returning the useable soil in trenches in 15cm layers including consolidating of such deposited layer by ramming & watering & then disposing of all surplus excavated soil/ unuseable material as directed with in all leads & lifts including restoration of un-metalled surfaces to its original condition & including cost of diversion for traffic, right signals, fixing caution boards, crossing over trenches for acess to houses, fencing etc. complete in all respect with in all leads and lifts and as per direction of the Engineer-in-charge at site of work.

Laying,jointing testing & commissioning at site in trenches following plain ended GMS pipes of following dia of Medium grade for Rising main as under confirming to BIS 1239-(Part-I)-1990 or latest with upto date ammendments, capable of withstanding required test pressure as prescribed in BIS code in randum lengths of 5.5 to 6.5 mtrs.The pipes ends shall be bevelled suitable for butt welded joint including the cost of jointing with butt welding confirming to IS- 816-1969 or latest as applicable ( leak proof) in three layers at site of work with welding rods of standard make and all allied acessories whatever required for welding at site, tail pieces, tees & bends manufactured from parent pipes etc and cuttings of pipes wherever required etc. as per site requirement i/c carriage in all leads & lifts and as directed by Engineer-in-charge .( Earth work shall be measured and paid for seperatly)

Sr. No. RD Nominal dia Thickness Weight P/RMT in Kg.

From To

Laying,jointing testing & commissioning at site in trenches following plain ended GMS pipes of following dia of Medium grade for Rising main as under confirming to BIS 1239-(Part-I)-1990 or latest with upto date ammendments, capable of withstanding required test pressure as prescribed in BIS code in randum lengths of 5.5 to 6.5 mtrs.The pipes ends shall be bevelled suitable for butt welded joint including the cost of jointing with butt welding confirming to IS- 816-1969 or latest as applicable ( leak proof) in three layers at site of work with welding rods of standard make and all allied acessories whatever required for welding at site, tail pieces, tees & bends manufactured from parent pipes etc and cuttings of pipes wherever required etc. as per site requirement i/c carriage in all leads & lifts and as directed by Engineer-in-charge .( Earth work shall be measured and paid for seperatly)

Sr. No. RD Nominal dia Thickness Weight P/RMT in Kg.

From To

Providing, welding and fixing M.S plate flanges of 125mm dia (Nominal bore) of following flange Table conforming to ISI specification No. 6392-1971 or latest with upto date ammendments to GI pipe after every 100 meter or as per site requirement including cutting of pipes wherever required, welding in three layers (leak proof) confirming to specification as per prescribed in relevant IS Code i.e IS 816-1969 or latest as applicable with upto date ammendments with nuts, bolts & washers & specials etc. confirming to IS-1963 or latest with upto date ammendments including packing sheet i.e asbestos fibre sheet minimum 3mm thick and painting with anticrossive paints complete in all leads,lifts and carriage of material at site and as directed by the Engineer-in-charge.

50 mm dia Table -28

50 mm dia Table -17

Providing and fixing double flanged cast steel Reflux valve of Kirloskar/ Leader/Bir make of following dia conforming to IS- 6392-1971 including rubber sheet ,flanges Table -5,welding and nut bolts complete in all respect with all leads and lifts of class ASA-150.

50 mm dia class ASA-150

(SH:-SUPPLY & ERRECTION OF SUBMERSIBLE PUMPING MACHINARY WITH ALLIED ACCESSORIES FOR TUBEWELL).Supply, erection, testing & commissioning of submersible pumping set of reputed make such as KSB/Kirloskar/Calama/BS/ Johnston, Amrut/Sabar/Oswal / Worthington conforming to latest relevent BIS code. The pump should be fitted with free flow impellers of bronze /suitable alloy as per BIS 5659 or latest with up to date ammendments suitable for clear water having Charcterstics as mentioned in iten No32.07(A) greased packed bearings & shell with wound stator on motor side & with shaft protection sleeve on pump side ensuring better life for shaft conforming to BIS specifications. The pump shall be directly coupled to a submersible squirrel cage electric induction motor of Kirloskar/NGEF/Jyoti / Crompton make conforming to relevent BIS code 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 chamber & grease packed lubricated bearings & provided with stainless steel thrust bearing plate to withstand non 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. The pump set should include water level guard, errection clamps, cable clips & depth gauge etc. & suitable for operation on data given below:-

a). Total Head in mtrs (i/c depth of Column Pipe in case of t/well) : 266.98 mtr.

b). Capacity (in LPS) of each pump set : 1.92 LPS.

c). Dia of R/Main (in mm) : 50 mm.

d).Length of R/Main ( in Mtrs) : 1500 mtr.

e).Dia of Column pipe (in mm) : 50 mm.

f).Length of Colmn pipe ( in Mtrs) :

A). SITE CONDITIONS:-

i). Location of Site :-

ii) The altitude of place in which the motor is intended to work :- 450.00 mtrs.

iii) Humidity :- Wheather generally remains humid during monsoon season.

iv). Nature of atmosphere :- As normally encountered in Shivalik Ranges.

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 :- 50 PPM.

ix). Type of well :- Tubewell.

x). Inside Dia of Well :- -200mm/300 mm

xi). Depth of water during HFL in the pond :- -------------

xii). Max. draw down :- -

xiii). Depth of T/ well :- 120.00 mtrs.

xiv). Any other information or requirement :- ----

B). OPERATING CONDITIONS :-

i). Type of current :- AC three/single phase

ii). Operating frequency :- 50HZ.

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). Speed of revolution :-To be quoted by tenderer.

vi). Direction of rotation :- To be quoted by tenderer.

vii). No. of working hours per day :- 8 hours.

viii).The max. Temp. of cooling air & water in the place in which the pumpset is intented to work in ordinary service :- 35 degree.(Generally warm).

C). MOTOR:-

i). Ref to BIS code :- BIS 9283-1979 or latest with upto date ammendments.

ii). Type of enclosure of motor :- As per BIS 4691-1985 or latest with up to date ammendments

iii). Type of duty :- "S1" i.e. Continuous duty type as per IS-12824-1989 or latest with up to date ammendments.

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:- Star Delta starter, oil immersed,fully automatic to be installed between bus bar & 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 & above)

ix). Type of motor :- As per BIS 9283-1979 or latest with upto date ammendments.

x). Details of shaft extension reqd :- To work with the pump offered satisfacterly.

xi). 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.

xii). 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 with the pump offered satisfacterly.

xiii) 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:-

i) Nos of pumps required :- 2 No. Pump.( One to act as stand bye)

ii). Spare parts required :- For two years normal maintenance as recommended by manufacturer.

iii). Type of drive :- Electric submersible motor.

iv). Optional fittings required :- --------

PUMP OPERATING CONDITIONS:-

i). Capacity of pump (in lps) :- 1.92 LPS.

ii). Total head (in Mts.) :- 263.39 Mtrs.

If total head is not known then following details be provided:-

a) Static head (in mtrs):- 196.25 mtr

b) Minimum depth of water (in mtrs) :- 36.58

c) Seasonal Variation in water level (in mtrs):- 9.00

d) Ground level to max. water level (in mtrs) :-

e) Ground level to delivery point (in mtrs):-

f) Pressure in the suction tank (in kg/cm^2)-

g) Pressure in the delivery tank (in kg/cm^2) :-

iii). Length of R/Main (in mtrs):- 1500 mtrs.

iv). Dia of R/Main (in mm):- 50 mm.

v). Length of Column pipe (in mtrs) :- 38 mtrs.

vi). Dia of Column pipe (in mm) :- 40 mm

vii). Turbidity of water (in ppm) :- 50PPM

viii). Drive type :- Electric driven.

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

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

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

a) duty head as mentioned in item no. 6.01 :-

b) (+) 10 % of head as mentioned in item no. 6.01

c) (-) 15 % of head as mentioned in item no.6.01 :-

xii). Material of construction :- To be specified by the tenderer (manufacturers certficate to be appended)

Supplying and installation at site STAR DELTA starter of standard make such as MEI/Kilburn/Jyoti/ Siemens/Larson & Tubro conforming to BIS-8544-1979 latest with up to date ammendments for squirrel cage/slip-ring 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 .

Providing and fixing at site 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 including cost of P/F of these accessories with all internal electric connections. The drawing of panel board shall be subject to approval of Engineer in charge.

c). ICTP switches with HRC fuses of Havells or any other approved 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.

d).Busbar chamber having three copper bars of suitable rating for full length equal to width of board of three 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 of suitable capacity of L &T Standard or any other approved make on incomming feeder for motors offered by the tenderer conforming to BIS 2516-1985 latest with upto date ammendments with initial oil filling whenever required & neutral linked under voltage release.

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

g) Earth leakage circuit breaker/relay of recommended L&T make conforming to BIS-2516-1977 with upto date ammendments and of suitaible range which should have control box, oprating handel and trip/reset push 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 earth fault for tripping of breaker on occurance of earth fault on/ of 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 electric sirens against single phasing, low voltage, high voltage & overloading & phase voltage difference as per IS-3842 with up to date ammendments.

j).Single phase preventor of reputed make & suitable capacity conforming to IS:1248 (P-V)-1983 with up to date ammendments

a). P/F at site of Kirloskar/Leader/Fouress/Kilburn/Kartar/GLED/BHEL/IVC /Bir/Pelicon /KSB make of suitable dia cast iron double flanged sluice valve having size one size larger than the nominal dia of delivery of the pump or equal to dia of column pipe ( in case of Tube well) and capable of withstanding nominal seat pressure as mentioned in item No. 32.01(a) + surge pressure conforming to BIS standards with up to date ammendments for delivery line of pump. 50 mm dia.

b).P/F at site of Kirloskar/Leader/Fouress/Kilburn/Kartar/GLED/BHEL/IVC /Bir/Pelicon /KSB make of suitable dia cast iron double flanged swing check type reflux valve having bye pass arrangement & size one size larger than the nominal dia of delivery size of pump or equal to dia of column pipe (in case of tube well) and capable of withstanding nominal seat pressure as mentioned in item No.32.01(a)+surge pressure & conforming to API standards with up to date ammendments for delivery line of pump.40 mm dia.

a).Providing,laying,jointing & testing at site suitable size copper PVC insulated armoured power three & half core cable ( for supply side) conforming to BIS 1554 (Part I) -1988 or latest with up to date ammendments of Siemen/Gloster/ICC/ EICO/National /IEC make from meter of HPSEB to circuite breaker & from circuite breaker to bus bar 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 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. 30.00 Rmt.)

b).Providing,laying,jointing & testing at site PVC jointless flat water proof cable ( for Motor Side ) as per BIS 694-1990 (latest with up to date ammendments) suitable for the pump sets offered from circuite breaker to motor & motor to starter including all other electrical 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. (75 Rmt.)

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

d).Supply & 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/Siemen/Havells make ICTP switches conforming to BIS 4064-1978 or latest with HRC fuses (Range to be specified by the tenderer).

Supplying and fixing in position at site of 100mm dia circular dial pressure gauge of suitable range & standard make such as Fiebeg/Bourden/ Precision/PREGA with all accessories such as stop cock,copper tubing etc.conforming to BIS 3624-1987 or latest with up to date ammendments.

Providing and lowering at site of GMS(M) column pipe assembly of size as indicated in 21.05 (e) including MS Flanges of table - 17 capable to withstanding nominal pressure as mentioned in item no.33.07(e) & confirming to IS 6392-1971 with up to date ammendments including the cost of rubber /asbestos gasket of maximum 3 mm thickness as per IS: 2712 -1979 and required numbers of nuts and bolts as per IS 1364 -1983.The column pipe shall confirmimg BIS 1239-1991 Part-1 specification should be provided & lowered as per the direction of engineer incharge. The same shall be of suitable thickness, grade & specification capable of withstanding minimum1.5 times the total presure as indicated in item no. 40.01(a) unless otherwise specified properly jointed at every three mtrs including all neccessary accessories like increaser/ reducer , flanges ,tees, bends etc.including supporting clamps ( 2 Nos ) at the top of assembly and i/c cost of jounting of column pipe with R/Main as per the direction of engineer-in charge ( 36 Rmt.)

SACHN KUMAR

GREWALSUBMERSIBLE AND ELECTRICAL SERVICE