Supplying and laying of 100mm dia Dedicated water main and electrical allied works at Fishermen colony 1st street in Depot-39, Area-IV.

Amount

Cutting asphaltic / concrete road in

Cutting BT surface by using road Compressor (machinary hire charges)

Supplying and Laying D.I. pipes (K7) as per IS 8329/2000 including earthwork excavation for trenches in hard stiff clay, stiff black cotton, hard red earth, shales, murams, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil, depositing the earth on banks with initial lead of 10m and lift 2.00m carting of pipes from any of the Board’s stores to the site of work, lowering into trenches and aligning, refilling the trenches with excavated soil, watering and ramming to consolidationet., complete for the pipes of dia meter 1.5m depth .(Including backfilling). as per schedule.

100mm dia K7Pipes at 1.5 m depth-BT road

100mm dia K7 Pipes at 1.5 m depth- BT Road

Providing Iron Barricading of size 2.50 m width and 1.75 m ht using 40x40x4 mm angle for outer frame supports 25x25x3 mm angle for inner frame supports 20 gauge thickness including cutting welding and CMWSSB Metrowater Boards and work details verticals, painting the verticals, painting the vertical posts in different colours, tieing with coir rope, fixing danger flags, danger lights, reflectors including watching during night and placing the barricading units as directed at the sites

Supplying of specials,Conveying and fixing of Specials (IS 1538/1986)

100 mm DI D/F 90 deg bend

100 mm DI D/F 22.5 deg bend

100 mm dia MJ Collar

100 mm dia Sluice Valve with tail piece (IS14846/2000)

80mm double Air valve

Cutting D.I. mains

For 100 mm dia. pipes

Hire charges for diesel pumpset for 7.5 HP with fuel and operator charges including transportation.

Testing of D.I.pipes with hydrulic testing equipment by fillling with water and testing to recommended pressure in convenient sretches and attending the bursts if any occurred during the test, excluding the cost of pipes, including other incidental and operational charges,etc., complete.

100mm dia DI Pipes

Construction of Sluice Valve chambers

For 100 to 250mm dia Sluice valve including providing and fixing L.S.Cover and frame of size 60x60cm. For size 1.35m x 1.20m x 1.55m

Construction of water meter chamber of size size 1.4m x 1.4m x 1.8m for mounting 80 mm dia water meter.

Construction of 80 mm Double Air Valve chamber for 100 mm to 350 mm dia. Pipeline including providing and fixing FRC cover and frame of size 60x60 cm for size 1.2 x 0.9 x 1.8 m

Electromagnetic Flow Meter shall be a velocity sensing Electromagnetic type, microprocessor based signal converter, sealed housing, flanged tube meter for 1.0 Mpa working pressure, manufactured to highest standard available for mag-meters, equipped with minimum six digit digital totalizers, reading in different units (Kiloliters / Cubic meter) and shall be accurate within 0.5% of Measured value, shall operate within a range of 0.3 m/sec to 4 m/sec and be constructed as follows: Meter tube (Sensor) shall be fabricated from stainless steel tube and use class PN10 flat face carbon steel flanges in accordance with IS 1538. These flanges shall be welded to the flow tube. The internal and external of the meter tube shall be blasted to near white and lined with hard rubber/ Polyurethrene/ PTFE preferably by SBR or EPDM. Meter tube shall have a constant nominal inside diameter offering no obstruction to the flow. The accuracy should be inclusive of linearity, hysteresis, repeatability, temperature and pressure effects. Coil Housing shall be fabricated from stainless steel (SS304)/ Die cast Aluminium/ Carbon steel with anticorriosive paint for corrosion resistance and welded to the tube providing a completely sealed environment for all coils, electrode connections and wiring harness capable of submerged or buried

operation with IP68 Protection. Signal Converter shall be pulsed DC coil excitation type with auto zeroing. The signal converter shall be remotely mounted away from the meter. The converter shall indicate direction of flow and provide a flow rate indication and a total of flow volume for both forward and reverse directions. The converter shall provide an isolated 4-20 mA output into minimum 500-ohm load and a frequency output of a maximum of 0-10 KHZ and a scaled pulse output. The microprocessor based signal converter shall have a self-diagnostic test mode and a backlit display that continuously displays “Rate of Flow” and “Total Volume”. Converter shall be supplied with a programmable low flow drop out, higher flow and empty pipe zero return. The signal converter housing should be die-cast aluminum with glass window. The converter cum transmitter should be fully programmable from the front facia. The programming should be user friendly, self-prompting menu driven. Flow meter test calibration certificate from FCRI, flow test lab / NABL accredited lab to be furnished.

Supplying of specials,Conveying and fixing of Specials (IS 1538/1986)

80mm dia D/F pipe 0.5m length

100x80mm dia D/F Taper

100mm dia Fl/Spi Tail piece

100mm dia Fl/ Soc Tail piece

Incidental charges during execution of work along pipe laying, for the following works:

Replacement of Underground Utilities (PVC Pipe) damaged duringearthwork excavation for pipe laying works including cost of additional earthwork excavation in all soil strata, including BT/CC road cutting,removal of slushy soil and replacing the pipeline with sound pipe,including supply and delivery of PVC pipes, couplers, jointing materialand required specials, cutting, conveying , laying, jointing and cost of refilling for the additional earthwork etc complete

Supplying and laying of MDPE (PE80) Blue pipe (IS:4427) with necessary specials including earth work excavation laying jointing testing, refilling the trenches and disposal of surplus earth For wateretc.complete.

Boring and Tapping mains or Re-boring and Tapping main and fixing brass screw plugs or ferrules of sizes including fixing of saddles piece.For water

Providing 200 mm dia PVC casing pipes across SWD

Hire charges for power breaker to dismantle the side walls of SWD

Cement concrete 1:2:4 using Crushed stone sand (M-sand) and 12 to 20mm gauge hard broken stone jelly for plain concrete work including laying compacting curing,etc., complete

Providing thrust blocks with Plain Cement Concrete in 1:3:6 with 40mm HBG for the CI pumping main including the cost of shuttering, compaction, curing etc. complete.

100 mm DI D/F 90 deg bend

100 mm DI D/S 22.5 deg bend

InterConnection with Pumpset

150x100mm dia DI DF Taper

100mm dia D/F pipe (2 m length)

100mm dia D/F DI 90 deg bend

Non return valve 100mm dia

100mm dia sluice valve

100mm dia flange spigot DI pipe

100mm dia DI D/F pipe 0.5m long

100mm dia 90 deg duckfoot bend

Providing thrust blocks with Plain Cement Concrete in 1:3:6 with 40mm HBG for the CI pumping main including the cost of shuttering, compaction, curing etc. complete.

100mm dia 90 deg duckfoot bend

Disjointing and relaying DI pipes excluding excavation

Claim charges for providing 100mm thick cement concrete M20 grade

Cutting asphaltic B.T road by

Cutting BT surface by using road Compressor (machinary hire charges) for HSC

As built survey for every sewage and water pipeline and other assets must be done using DGPS based RTK method by transferring the coordinates from the nearest Static GCP of CMWSSB.

For the Point Underground / Surface Assets along the roads

Electrical Works

Supply, delivery, erection, testing and commissioning of electrically driven, water lubricated horizontal split case water supply pumpset with bronze impellers, other accessories suitable for following duty point, including required capacity 3Ph, 415 V, AC, 50 Hz, TEFC, squirrel cage induction motor, on a common base plate, with suitable starter, fasteners including incidental civilworks etc. complete.

Pump- 1 - 342 lpm against a total head of 33 m

Supply, delivery, erection, testing and commissioning of following sizes of power shunt capacitor for power factor improvement, suitable to operate on 415V, 3Ph,50Hz A/C supply, on suitable angle iron frame-works (37.5 mm x 37.5 mm x 6.24mm ) at a height of 0.25m from the ground, including earthing and incidental civil works etc., complete.

Pump- 1 - 1 kVAR

Supplying and fixing of 32 Amps Triple Pole fuse carrier in MS Sheet steel encloure with provision for accommodating the TNEB meter including earthing etc., complete.

Supplying and fixing of 32 Amps Triple Pole FSU with HRC fuses on suitable angle iron frame with earth connection only.

Capacity of M.V. Panel - 32 Amps

32 A FP Motorised Online Change over Switch 25 kA

16 A TP MCCB 25 kA for Pump- 1

16 A TP MCCB 25kA (for Pump- 1 cap.)

Capacity of D.G. Set - 15 kVA

Supplying and clamping of variuos sizes of PVC insulated PVC sheathed armoured aluminium LT UG cable by MS clamps on wall or in a trench to be excavated at a depth of 2 ½ ' putting 6” layer of sand and covering the cable with brick and sand refilling the earth to make good as directed.

From 32 Fuse Carriers to 32 Amps SFU & from there to 32 Amps MCCB Switch of MV panel (Wall)

size 4C,6 Sqmm

From existing Control Panel of DG to 32A MCCB of MV Panel (Under ground)

size 4C,6 Sqmm

From 16 A MCCB of MV Panel to Control Panel of Pump- 1 (Wall)

size 4C,6 Sqmm

From Control Panel of Pump- 1 to motor (Wall)

size 3C, 6 Sqmm

From 16 A MCCB of MV Panel to Pump- 1 Capacitors (Wall)

size 3C,6 Sqmm

From control Panel of Pump to Local P.B. Station size 3 core 2.5 sq.mm copper (Under ground)

Supplying and fixing of cable gland and termination with Al. cable lugsfor the following sizes of PVC insulated PVC sheathed armoured alumunium LT UG cable and with earth connection.

size 4C,6 Sqmm (EB)

size 4C,6 Sqmm (DG)

Size 4C,6 sq.mm (Pump- 1)

size 3C,6 Sqmm (Pump- 1 capacitor)

Supply, delivery and fixing of dust and vermin proof Local Push Button station near the pumpset with 1 No"ON" and 1 No "OFF" push buttons (the "OFF" push button shall be locable in "OFF" position).

Supply, delivery and erection of Single Phase 6 way 16 Amps, 10kA LDB with the following: 1 No. of 16A, DP RCCB 4 Nos of 6A, SP MCB in sheet steel enclosure fitted with busbars and neutral links and suitable angle iron frame works with provision for earthing etc. complete.

Run of 2 of 2.5 sq mm PVC unsheathed copper single core cable in PVC pipe for mains with continuous earth connection by 14 SWG wire From the MCB DB to the Switch boards in office, store,and 16A power socket.

Operation and maintenance of the installation: Operation and maintenanceof the plant with all auxiliary equipment for a period of 120 days after satisfactory supply, erection , commissioning and operating the entire plant for 30 days, free of cost by the contractor before handing over the plant to the Board.

Sub Total (excluding GST)

SRI MEENAKSHI AND CO (BID ID -1090075)

K.Mahendran (BID ID -1089588)

N SRIPATHY (BID ID -1090264)