O and M Scheme 2022-2023

Amount

Desilting light or sandysoil or silt from infiltration wells below water level including the charges for special T&P and air compressor etc. complete. (Twad sor P.no 310)

Supplying and fixing of M.S grill of approved design for doors, windows and ventilators using necessary mild steel flats for inner and outer memebers which should be fixed to window frames inclusive of priming coat of best approved quality red oxide primer etc., complete complying with standard specifications. for open well cover

Reinforced cement concrete 1:11/2:3 (one cement one and half Crushed Stone Sand and three aggregate) using 20mm size I.S.S. metal including cost conveyance of materials to site and all labour charges etc., mixing laying consolidating curring etc., but excluding cost of steel etc., complete as per standard specification as per TNDSS NO: 30 V,VI (S3) VII-3

Supplying, fabricating and placing in position of mild steel or TMT rods, including cost of steel and binding wire and all labour charges for cutting, bending, tying and placing in position etc, complete as per SS. TNDSS NO: 97 V,VI (S6) VII (S6) VII-3

Plastering in Cement Mortar 1:3 Mix (one Cement, Three sand ) 20mm thick including cost and conveyance of all materials to site, loading and unloading charges and labour charges for mixing, laying and curing etc. complete . complying with std. specifications

Supply and fixing of following pipelines and specials etcc.complete

50mm GI pipe

32mm GI pipe

25mm GI pipe

20mm GI pipe

32mm GI coupling

32mm GI tee

32mm Hex nipple

32mm GI elbow

25mm GI coupling

25mm GI tee

25mm Hex nipple

25mm GI elbow

20mm GI coupling

20mm GI tee

20mm Hex nipple

20mm GI elbow

Waste not tap 20 mm

40mm ms bore clamp

40mm GI pipe

32mm gm gate valve

40mm upvc column pipe

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 3 core 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.

Supply and delivery of direct online starter confirming to IS13947, IEC60947-1 and as amended thereafter with suitable KW rating for operation in AC/Three 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).

Supply and delivery of Open well Submersible pump set conforming to IS 14220 /2002 and as amended thereafter and BEE 3 Star Rated capable o 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 3 core 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.

Plain Cement Concrete 1:4:8 Mix (one part cement, four part sand and Eight part of aggrigate) using 40 mm size ISS HBG metal from approved quarry including cost and conveyance of all materials to site. Loading and unloading charges and labour charges for mixing. Laying and curing etc., complete as per TNDSS NO : 28 & VI (S2) VI (S5A) VII standard specifications as directed by Engineer incharge.

Painting two coats with ready mixed Plastic Emulsion Paint S.I.358 Plastic emulison paint of'approved quality and colour over a priming coat, including thorough scraping, clean removal of dirt, etc complete and including necessary plaster of paris, putty, wherever required including cost and conveyance of all materials etc.and all lobour charges etc.complete as per Standard specification and as directed by the departmental officers. TNBP No:66-A

Labour charges for painting twad board emblem in accordance with the size and specifications as approved by the board on the service reservoirs including cost of all consumables,one coat of base paint scaffolding charges including paintng NRDWP logo on the service reservoirs etc..complete

Providing and laying, spreading and compacting graded stone aggregates to Wet Mix Macadam 250mm thick specification including premixing the materials with water at OMC in mechnanical mix plant carriage of mixed material by tipper to site laying in uniform layers with pavers in Sub Base/ Base course on well prepared surface and compacting with vibratory roller to acheive the desired density including cost of material, labour charges, rentals for machinery, fuel and all other incidental charges etc., complete as per clause 406 of MORTH

Supplying and laying Precast Designer Paver Block confirming to IS 1568-2006 specification manufacturing and laying standard of M40 grade 83mm thick (table clauses 5 and 9.14) suitable for bus terminals industrial complexes road on expensive soils etc., including the cost of paver block of size 225mm x 12.50 mm x 80mm and conveyance of materials to work site mentioned in the tender schedule cost of loading and unloading handling during over Stone dust of 100mm thick (excluding the cost of sand) conveyance paver block cutter to site and hire charges of vibrators and block cutter operator and labour for leveling the sand to paver block etc., complete ISI 15658-2006.

Brick Work in Cement Mortor 1:5 Mix (one cement, five sand ) using new best country Bricks of size 8 ¾” x 4 ¼” x 2 ¾” from approved quarry including cost and conveyance of all materials to site. loading and unloading charges and labour charges for mixing, laying and curing etc. complete. complying with std. specifications.

Plain Cement Concrete 1:2:4 Mix (one part cement, two part sand and four part of aggrigate) using 20mm size ISS HBG metal machine crushed from approved quarry including cost and conveyance of all materials to site, loading and unloading charges and labour charges for mixing, laying and curing etc., complete as per TNDSS NO: 28 & VI (S2) VI (S5A) VII standard specifications as directed by Engineer incharge.

Collection Supply & Fixing of Cut Stone Pillar of size 0.15x0.15x2.10 at 3.00 c/c including cost of earth work to a Pit of size 0.45x0.45x0.60 fixing the Cut stone pillar in the position and filling the Pit of size 0.45x0.45x0.30 with C C 1:3:6 etc., Complet. As per Std Specifications.

Providing fencing with chain link diamond mesh 50mm x 50mm size made of 10 swg GI wire,including the cost of G.I binding wire and top of the mesh linked with 10 swg GI wire etc., completed-. 10m2.( consider 30m x 1.80m )

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.For 3HP

For 7.5 HP

For 2 HP

Supply and laying of Pvc insulated and sheathed 3 core flat type 4 sqmm copper cable conforming to I% 694/1990 and as amended thereafter etc..complete

Charges for conducting geophysical survey to locate the favourate point for drilling etc complete including cost of all ttools and plants and all labour charges etc complete

Drilling Of 41/2" dia deep vertical bore well in hard rock area in any Required depth as decided by the departmental officer including inserting the easing pipe etc complete as per standard specifications

Supply and delivery of 140mm OD PVC casing pipe (CM) including cost of all painting work and all labours etc complete

Supply and fixing of TNEB Meter board suitable for 3phase 63A service connection made up of suitable angle iron frame work and supply and fixing of 3nos 63A fuse unit 1no nutral link copper earth flat with inter connection of EB meter to fuse units by 7/16 pvc insulater copper wire with earth connection complete (SD-129)

Supply and run of 4 of 6sq.mm pvc insulated SC unsheethed Cu.Conductor of 1100V in suitable pvc rigid pipe on wall and ceililing with continuous earth wire of 14 swg TC wire painting of suitable wire etc complete (SD-52)

Supply and delivery of clear water vertical wet type submersible pump conforming to IS 8034/2002 and 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 suitable for operation in AC single phase 230 V+/- 10 %,50 HZ +/-5 %