CNT/SEW/MWB/3438A/2021-22

Amount

Bill No 1 Civil works Cutting Asphaltic road - Hiring of power drilling machine for cutting the road for a thickness of 30cm

Supply and laying of 250 mm dia DWC Structured Wall Polyethylene Piping Systems (Pipe with online/offline coupler and elastomeric sealing ring) with required specials non-smooth external annular corrugated and smooth internal surface (Double wall) (SN 8 Class) for non-pressure underground sewerage, drainage application generally as per IS-16098 (Part-2) type B.including earthwork excavation for trenches in hard stiff clay, blackcotton, 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 10 m and initial lift of 2m carting the pipes from any of the Board’s Stores to the site of work lowering into the trenches, aligning, watering and ramming to consolidation, etc., complete for the pipes of following diametres. (Excluding backfilling of trenches and disposal of surplus earth)

at 1.50m average depth.

at 2.00m average depth.

at 2.50m average depth.

Supply and laying of 250 mm dia CI Pipes - Class B / IS 1536/2001 including earthwork excavation for trenches in hard stiff clay, blackcotton, 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 10 m and initial lift of 2m carting the pipes to the site of work lowering into the trenches, aligning, watering and ramming to consolidation, etc., complete for the pipes . Including backfilling of trenches and disposal of surplus earth and inclusive of Transportation charges anywhere in Chennai.Rubber gasket cost included

at 3.00m average depth.

at 3.50m average depth.

at 4.0m average depth

at 4.5 m average depth

Barrication work around the trenches with casurina posts at 1.5m center to center verticals, painting in different colours tying with coir rope, fixing danger flag, light and reflectors including watch and ward.

Hire charges for diesel pumpset for 7.5 HP

Providing dummies and removing dummies using all safety gadget as per Govt. norms, For shallow depth machine hole

Construction of new Machine holes using sulphate resistant cement at various depths to invert including earthwork excavation as per SS 20B, laying cement concrete in C.M. 1:3:6 using Crushed stone sand (M sand) and 40mm B.G.jelly for foundation, sinking well kerb below G.L. for 4.5m depth and above, pumping, timbering charges for 2.5m depth and above, stock brick work in C.M. 1:3, for 23cm thick wall and over 23cm thick wall, plastering interior with C.M. 1:3, 20mm thick and exterior with C.M. 1:3, 12mm thick, laying plain cement concrete 1:3:6 using 12.0mm to 20mm B.G.jelly fixing the frame, providing C.I. steps, machine hole cover and frame, benching and channeling including refilling the trench with excavated earth and disposal of surplus earth etc. complete for the following sizes for each machine hole (As per the type design drawing for machine hole). Including backfilling of trenches and disposal of surplus earth

1.0 m average depth at Chellappa Street

4.5 m average depth RCC MH at Edward park

Construction of 5 m Depth, 2.5 m dia Collection cum suction well

Providing Iron Barricading of size 2.50 m width and 1.75 m height using 40x40x4 mm angle for outer frame supports, 25 x 25 x 3 mm angle for inner frame supports and 20 gauge thickness MS sheet for name board (as per drawing) including cutting, welding, fabrication charges and one coat of primer and 2 coats of enamel paint of approved quality, writing "METRO WATER" & work detail/ caution sign, providing necessary interlocking arrangements with adjoining units, fixing danger flags, danger lights, reflectors, fixing stickers etc, including watching during night and placing the barricading units as directed at the sites.

Earth work excavation in hard stiff clay, stiff black cotton, hard red earth, shales, murum, gravel, stoney earth or earth mixed with small size boulders and hard gravely soil as per SS20B with initial lead of 10m and lift of 2m etc. complete. For 0 to 2 m depth

Providing form work with centering for soffits of reinforced cement concrete slabs or plain surfaces including shuttering for RCC well curb and well steining.

From 1 m above ground level to 3.0 m below ground level (Curved surface)

From 5 m to 6 m above invert of well

From 5 m to 6 m below GL

Providing and laying in position machine batched machine mixed and machine vibrated design mix. Sulphate resistance cement concrete M30 grade (River sand) for reinforced cement concrete structural elements under controlled water cement ratio with plasticiser using 20mm and down graded machine broken granite stone jelly excluding the cost of centering and shuttering and reinforcement but including curing, Mixer, vibrator, etc. as per standard specification and as directed at site

From 1.5 m above ground level to 1.5 m below ground level

From 1.5m to 4.5m below ground level

From 4.5m to 9.0m below ground level

Cement concrete work 1:2:4 using 20mm gauge hard broken stone jelly for reinforced concrete works excluding centering, shuttering and cost of steel reinforcement but including laying in position, compacting, curing, finishing, etc., complete 4.5m to 9m depth

Providing point edge to well curb using ISA 200x150x16 mm of weight 42.20 kg/m

Sinking of well below water level including all incidental charges using special tools and plants such as air compressor, helmet etc., complete and including baling out water. 2.5 m dia well

First depth of 2m

Second depth of 2m

Third depth of 2m

Plugging the bottom of the well using C.C 1:3:6 using Crushed stone sand (M-sand) and 40mm gauge hard broken stone jelly with 10% excess cement for plain cement concrete works including laying in layers of not more than 15cm thick including ramming curing etc complete

4.5m to 9m depth

Supplying, fabricating CRS bars manufactured by Primary steel including cost of steel, binding wire, cutting, cranking and tying, in position with binding wire assembly etc complete.

Plastering with cement mortar 1:3 (SRC) using Crushed stone sand (M-sand) for 20mm thick including curing, etc., complete

Plastering with cement mortar 1:3 (SRC) using Crushed stone sand (M-sand) for 12mm thick including curing, etc., complete.

Refilling with excavated earth complying with standard specifications for filling in foundations & basement other than sand including watering & consolidating etc.,

Disposal of surplus earth

Supply and erection of Cast Iron single faced manually operated non rising type 250mm dia penstock with extension rod of 4.5m length conforming to relevant IS with IS markings on it, having cast iron door and frame with Gunmetal seating, spindle made of Stainless steel, CI head stock with gear arrangement and hand wheel fitted in well.

Supplying and fixing SS screen of grade 316. The screen shall be fabricated out of stainless steel flats of 50 x 10mm. The outer frame also shall be of 50 x 10mm fixed inside the well for seating the screen. The screen shall be so fabricated that the inclined portion of the screen is fixed and the horizontal portion of the screen is a removable one for lifting the pump for maintenance purpose. Outer frame and 50x10mm SS flats spaced at 35mm centre to centre to serve bar screens inside the screen well

Supplying and fixing C.I.steps.

Supplying and fixing FRC cover and frame of size 60x60cm including necessary masonry work and plastering etc complete.

Precast slab 100mm thk in Cement Concrete 1:2:4 using Crushed stone sand (M-sand) and 12 to 20mm gauge hard broken stone jelly for reinforced cement concrete works including cost of steel, centering, shuttering and cost of steel reinforcement and including laying in position, compacting, curing, finishing,as per drawings,or as directed etc., complete.

Colour washing two coats over one coat of white washing

Supplying and fixing PVC water bar, 150 mm wide for construction joint

Pumping main :Supplying 200 mm CI pipe - Class B / IS IS 1536/2001(From Edward park to Mooku Street via Chellappa Street )

Laying 200 mm CI pipe line at a depth of 1 m including earthwork excavation for trenches in hard stiff clay, blackcotton, 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 10 m and initial lift of 2m carting the pipes from any of the Board’s Stores to the site of work lowering into the trenches, aligning, refilling the trenches with excavated soil, watering and ramming to consolidation, etc.,(Laying of pipes – including back filling)

Road cut restoration :Cement concrete 1:2:4 using Crushed stone sand (Msand) and 20mm gauge hard broken stone jelly for plain concrete works including laying ramming curing, etc., complete.

Bill No 2 Electrical works 10 HP submersible pump set inclusive of electrical control panel

Supply, delivery, erection, testing and commissioning of non-clog submersible sewage pumpset with following duty point, driven by 3 Ph, 415 V, AC, 50 Hz, Electrical Motor with suitable weather proof cable (Copper ) of total length of 20 m, control panel, Pedestal Coupling, required length of guide wire / guide pipe, M.S.(GLVD) lifting chain, necessary level controlling probes with sufficient length of armoured copper LTUG cable to connect the probe from the junction box to the control panel, fasteners including laying of pump cable under ground with suitable conduit and clamping on walls in trays and incidental civil works etc.complete Discharge 100 cum Head 20 mtr and 1450 rpm with 20 mtr cabe Sew. Pump - 6000 lpm

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. Sew. Pump - 3 kVAR

Supplying and fixing of 63 Amps Triple Pole fuse carrier in MS Sheet steel enclosure with provision for accommodating the TNEB meter including earthing etc., complete.

Supplying and fixing of 63 Amps Triple Pole SFU with HRC fuses on suitable angle iron frame with earth connection only.

Supplying and clamping of various sizes of PVC insulated PVC sheathed armored 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 63 Fuse Carriers to 63 Amps SFU & from there to 63 Amps MCCB Switch of MV panel (Wall) size 3.5C, 50 Sqmm

From 63 A MCCB of MV Panel to Control Panel of Sew. Pump (Wall) size 3.5C, 50 Sqmm

From 63 A MCCB of MV Panel to Sew. Pump Capacitors (Wall) size 3C, 6 Sqmm

From 32A MCB of MV Panel to LDB and PLC Panel (Wall) size 2 core 4 sq.mm

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

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

size 3.5C, 50 Sqmm (EB)

size 4C, 6 Sqmm (DG)

Size 3.5C, 50 sq.mm (Sew. Pump)

size 3C, 6 Sqmm (Sew. Pump capacitor)

Size 2 core 4 sq.mm (LDB &PLC)

size 3 core 2.5 sq.mm copper

Supply delivery and fixing of out door weather proof junction box fabricated in MS sheet steel (12 SWG for front 14 SWG for other sides) near the suction well for terminating the Pump power cable and control cable on an angle iron frame at convenient height for working and above the local MFL with provision for terminal block & earthing as per IS including incidental civil works etc.,complete. For Sew. Pump

Supply, delivery and fixing of out door wheather proof Local Push Button station in the compartment provided in the Junction Box 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 aluminium 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.

Wiring with 2.5 sq mm PVC insulated single core aluminium cables of 650 V Grade on suitable rigid PVC pipe on wall and ceiling with PVC accessories, with MS switch box covered with 3 mm thick hylam sheet with continous earth wire connection of 14 SWG TC wire. Light points

Wiring with 2.5 sq.mm PVC unsheathed A1. single core cable on suitable rigid PVC pipe for 5A 3 pin CS plug non interlocking including supply and fixing of plug pin top in MS box with continuous earth connection by 14 SWG TC wire.

Lighting Fixtures Supplying and fixing of box type 4’ 20W single LED fitting complete with TW round block and tube on ceiling or wall with connection.

Supply and delivery of the following safety equipment a) 5 kg capacity ISI marked dry chemical powder type fire extinguisher

First Aid box ( medium)

Fire bucket - 3 Nos with MS stand

Rubber mat 6mm thick of 1.1 kv grade of size 2m x 1m

Fire safety rules chart

Shock treatment chart

"Caution / Danger" Board

Supply and delivery of the following tools:

Electrical tester

Supply and delivery of Rechargeable emergency lamp with 600mm Fluorocuent lamp, dry type rechargable battery etc.,complete.

Earthing as per ISI specifications with necessary masonary work

Supply and connection of earthing conductor including two coats of approved painting and laying between earth pit and equipments 25 x 6 mm GI Flat

25 x 6 mm GI Flat

40 x 6 mm GI Flat

Supply, Delivery, erection, testing and commissioning of Ultrasonic Level Transmitter with level indicator in LED light display with weather proof insulation of range 0 - 15 meters in the collection well with necessary mounting arrangements including incidental civil works etc complete.

100 mm D/F pipe for 2 mtr length

100 MM Sluice valve CI D/F SLUICE VALVE WITH CAP/ WHEEL AS PER IS 14846/2000 PN 1 WITH ISI MARKING

100 mm NRV C.I. D/F REFLUX VALVE AS PER I.S. 5312/ PART I/ 84 WITH BYEPASS ARRANGEMENTS (PN-1) WITH ISI MARKING

100 mm 90 deg bend CI/DI Double flange bend

Charges for Erection of pipe line and pump set into the collection well

Supply, Delivery, Erection, Testing and commisioning of SS scale level indicator for the measurement in metres for a length of 7 metres 7m x 0.5m with rope and ball float

5 HP submersible pump set inclusive of electrical control panel

Supply, delivery, erection, testing and commissioning of non-clog submersible sewage pumpset with following duty point, driven by 3 Ph, 415 V, AC, 50 Hz, Electrical Motor with suitable weather proof cable (Copper ) of total length of 20 m, control panel, Pedestal Coupling, required length of guide wire / guide pipe, M.S.(GLVD) lifting chain, necessary level controlling probes with sufficient length of armoured copper LTUG cable to connect the probe from the junction box to the control panel, fasteners including laying of pump cable under ground with suitable conduit and clamping on walls in trays and incidental civil works etc.complete. spare motor Sew. Pump - 3600 lpm, Discharge 60 cum, Head 20 mtr, 1450 rpm with 20 mtr cable

Tripod with chain pulley block of 3 Ton including 5 m length

Kiosk for providing control panel, breakers, MV panel for the menasurement of 6' x 6' x 8' with door fitting (6 ' x 8 ' height x 4 sides and Top cover 6' x 6' )