Maintaince Works to Existing Borewell at Thirupparnkundram (Hydrant Point ) and Pamban Nagar (Hydrant Point) in Ward 98,99

Amount

Flushing of borewell of 6" dia requiring less than 4 hours operation using drill rods/ hose with required size of pipes for various capacity compressor including transportation, labour, and fuel charges for compressors as directed by the TWAD Officer and conducting yield test by 'V' notch method if required.

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel, stoney earth and earth mixed with small size boulders SS.20B and Sand, silt or other loose soil, wet sand or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed wherever necessary refilling the sides of foundation with excavated soil other than sand in layers of 15cm thick well rammed and cleaning and levelling the site etc.,complete - Open Earth work Excavation.

Plain Cement Concrete 1:4:8 (one cement four fine aggregates and eight coarse aggregates) using 40mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges and all incidential charges such as water providing etc., complete as per standard specification

Brick work in cm 1:5 (one cement five sand ) using IInd class ground moulded bricks of size 9"x4 3/8"x2 3/4" including finishing, curring, etc., complete complying with standard specification.

Plastering with cement mortar 1:5 (One Cement, Five Sand) 12mm thick in all floors including cost and conveyance of all materilas to site and labour charges etc,complete as per standard specifications.

THREE PHASE SUBMERSIBLE PUMPSET SUITABLE FOR 150MM DIA- BOREWELL AS PER IS 8034/2002 WITHOUT PANEL BOARD Supply and delivery of clear water vertical wet type submersible pumpset suitable for 150mm dia borewell conforming to IS 8034/2002 as amended thereafter and BEE 3 Star Rated capable of discharging noted LPM against head of water column due to all causes. The pump shall be with stainless steel shaft and dynamically balanced bronze or Cast SS impeller, brass screws and CI FG 200 grade pump bowl/diffuser with ISI mark. The pump shall be directly coupled to a continuos rated two pole suitable wet type vertical squirrel cage induction motor asper IS 9283 /1995 as amended there after, suitable for operation in AC three phase 415 V+/-10%, 50HZ +/- 5 % , 50 lpm x 125mtr

Supply and delivery of Open well Submersible pump set conforming to IS 14220 /2002 and as amended thereafter and BEE 3 Star Rated capable of discharging the following duties due to all causes. The pump shall be with stainless steel shaft and dynamically balanced bronze mixed type impeller, CI FG 200 grade casing and brass screws and rotor shall be of copper rod as per IS 613/1984 with ISI mark. The pump suitable for installation in sump with 1.1KV grade 3core suitable copper flat submersible cable to a length of 15m with necessary cable joints. The non-return valve located at the top of the pump in the discharge outlet connection is to be designed with minimum friction. The pump should be directly coupled to 2880 RPM, three phase, 50 Hz (±5), 415V+6% & 415V-15% squirrel cage induction motor suitable for DOL upto 5 HP, Fully Automatic Air break Star Delta up to 20 HP and Auto Transformer starter for above 20 HP starting and for continuous operation. 50lpm x 100mtr

THREE PHASE PANEL BOARD- D.O.L. WITH TWO LEVEL GUARD AND AUTO START Supply and delivery of direct online starter confirming to S13947 and IEC 947 suitable KW rating for operation in AC/single Phase/50HZ(± 5%) and 415 V(±10%) including Ammeter, Voltmeter, Thermal Overload relay, 16 Amps 2 pole Magnetic Contactor with under Voltage protection, Indication lamp, starting capacitor, running capacitor and On/Off Push button switches, 5 way connector, wiring with 1 sq. mm/1.5 sq. mm copper PVC insulated cable, powder coated vermin proof box including the capacitor (the cost of capacitor is to be taken separately). -5HP

Supply and delivery of PVC insulated and sheathed 4.0sqmm copper cable conforming to IS 694/1990 suitable for submersible pump set.

32mm UPVC Column Pipe Supply and delivery and fixing Gi pipes and speacials as per is speacification.

32mm GI Pipe

Rope (PWD Data 23-24)

32mm CI Adopter

32mm GI Coupling

32mm GI Elbow

32mm NRV Valve GM

32mm GI Hex Nipple

32mm GI Union

32mm PVC Pipe (PWD Data 22 - 23)

Bore Cover

Bore Clamp

50mm GI Pipe

50mm GI Coupling

50mm GI Elbow

50mm GI Hex Nipple

50mm Hose

Labour Charges for erection of Horizontal shaft, centrifugal pumpset (Coupled/Monoblock) in bore well/Open well including fixing of suction pipe and foot valve upto a maximum depth of 7 metres and delivery pipes to the required length with valves, pressure gauges upto the exterior wall of pump room and erection of panel board consisting of TPIC switches starter, Voltmeter, Ammeter, Capacitor single phasing preventor and laying and jointing the cables and twin earthing as per IE rules including providing bed blocks etc., complete and operating the pumps and trial run for 10 days including signing of completion of reports as required by EB authorities.

Add 18% GST

SIVA SASVANTH ELECRICAL ENGINEERING (BID ID -1078689)