Changing hoisting operation of Pickup Anicut shutter from Manual mode to Electrical mode and Construction of Generator Room of Vaigai Dam in Periyakulam Taluk of Theni District

Amount

Earth work excavating and depositing on bank with initial lead of 10m & initial lift of 2m in hard stiff clay, stiff black cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size boulders etc., shown in borrow areas load into tippers conveying and spreading the unloaded earth at site in layers of not more than 25 cm thick including conveyance of earth with a lead of 3 KMCT, watering and consolidation etc., complete complying with Standard Specification as directed by the departmental officers

Earth work excavation for foundation in all soils and sub-soils and to full depth as may be directed except in rock requiring blasting inclusive of shoring shuttering, bailing out water wherever necessary and depositing the surplus earth within the compound in places shown by the departmental officers with an initial lead of 10 mts and initial lift of 2 mts. and clearing and levelling the site, etc., complete complying with standard specification.

Providing and placing Plain Cement Concrete M7.5 grade using well graded aggregate of nominal maximum size of 40mm and downgraded to I.S specified grading (To achieve the specified characteristic strength of 7.5N/mm2 in 28 days) and mixing the ingredients in approved mixer including dewatering of the placement site by bailing / pumping and diverting wherever necessary, placing concrete in layers, watering, curing, finishing the surface with all leads and lifts etc., complete as directed by the Engineer in charge of works and as per the technical specifications.

Supplying and Erecting water tight steel centering for sides and soffits including necessary supports and shuttering including strutting for all R.C.C. works etc up to 3.29 m height with all cross bracings using mild steel BG 10 sheets of size 90cm x 60cm gauge stiffened with welded mild steel angles of size 25x25x3mm for boarding laid over silver oak (country wood) joist of size 10cm x 6.5cm spaced at about 90cm centre to centre and suitably supported by casuarina props of 10cm to 13cm dia spaced at 75cm centre to centre, including cost of materials etc., complete complying with standard specification and as directed by the Departmental officers. The payment for centering shall be given after the concrete is laid and the retrieved materials should be taken back by the contractor.

Providing and placing in position of Reinforced Cement Concrete of grade M 20 using hard well graded aggregates with the nominal maximum size of coarse aggregate of 20mm; weigh batching the ingredients and mixing in approved mixers/batching plant (to produce concrete of the specified characteristic strength of 20N/mm2 at 28days) including dewatering of placement site by bailing/pumping and by diverting wherever necessary laying the concrete in layers and in bays, Vibrating, compacting and finishing, adequate water curing so as to attain the profile and strength specified in the approved drawing and specifications as per the direction of the Engineer complete in all respect but excluding the cost and placing of reinforced grill in position etc, complete as directed by the Engineer in charge of works and as per the technical specifications

Brick work in following Cement Mortar 1:5 (One cement and five sand) using best quality of country bricks of size 8¾" x 4¼"x 2¾" for foundation and basement including curing etc., complete complying with standard specification.

Plastering in Cement mortar 1:4 ( One cement four sand by volume ) 20 mm thick including finishing, curing using mixer machine for mixing mortar etc, complete as directed by the Engineer incharge of works and as per the technical specifications

Special ceiling plastering and finishing the RCC exposed surface such as RCC slabs sunshade facia, canopy slab, staircase, waist slab, landing slab etc., with cement mortar 1 : 3 (One cement and three sand) 10mm thick including hacking and providing necessary cement mortar nosing, beading etc., wherever necessary and as directed with the cement mortar etc., complying with standard specification.

Providing granolithic floor finish of the following thickness with plain cement concrete 1:2:4 (One Cement, Two sand and Four aggregate) using 10 to 12mm gauge hard broken stone jelly including laying, finishing and the top rubbed smooth with power trawl, thread lining, curing etc. complete complying with standard specification and as directed by the departmental officers. (The rate is inclusive of necessary planking for panelling wherever necessary and as directed by the departmental officers)

Fabricating, Supplying and fixng in position of steel sheeted windows (Two Leaves) with the following specifications. Outer frames of windows made of 'Z' section F7D of size 33 x 25 x 3mm at 1.419 kg/ m and mullion 'J' section (F4B) of size 46x25x3mm at 2.28kg/m and shutter section of made of F7D of 33x25x3mm at 1.419 kg/m as specified in IS 7452/1990. Each openable shutter should not exceed a width of 600mm to enable separate operations and easy maintenance. The panel of the shutters to be covered with 18 gauge cold rolled sheet of superior quality and welded intact with shutter frames. Horizontal stiffeners using 18x5mm MS Flat at 0.70kg/m at 3 Nos. for each shutter and additional diagonal stiffners of the same MS flats at all the four corners of each shutters to the suitable length welded to the shutters, for holding the CR Sheets in position firmly. 2 numbers of sturdy hinges and one number of handle-cum-latch of special type made with 18x5mm MS flats are revetted to the shutters at an appropriate height in window. suitable opening is left for its easy operation. a stopper square rod for handle is provided in the mullion section at suitable place to catch the window handle. each window shutter having an adustable stay made out of 18 x 5mm at 0.70 kg/ m MS flat of lenght 320mm with three adjustable position. A matching peg is provided in the outer frame of the window at suitable place. 4 Nos. of hold fasts of 120mm length spliced at the ends are welded to the outer frame of the window by using MS flat of 18x5mm at 0.70kg/m, welded to the shutter at two place equivalent from each from top and bottom of the shutter. An MS square bar of 12mm size is welded to the inner face of the window at an equal interval not exceeding 100mm edge between them. All members are painted with one coat of anti-corrosive red oxide primer as directed by the departmental officers.All sections should be in confirmed with IS 7452/1990.The cost includes cost of all materials, labour charges and other incidental charges, etc., complete

Manufacturing supplying and fixing of steel door with the following specification MS angels of size 40x40x6mm are used for the outer frames and M.S. angles of size 35x35x6mm for the shutter frames stiffeners with 32 x 6mm M.S flat is provided at required intervals in the shutter frame. 18-gauge C.R. sheet laid as panel in the shutter and welded intact. M.S. flat 18x5mm is welded over the 32 x 6mm M.S. flat sandwitching the C.R. sheet in between additional stiffeners with 18x5mm M.S. flat is provided diagonally at the rear side of the shutter, 3nos. of hinges in case of single leaf and 6nos. of hinges in double leaves shutter to be provided 6nos. of holdfasts 120 mm in length made of angle section spliced at the ends are welded to the outer frames of the door. Tower bolts 2nos. one at the top and the other at the bottom are provided 1no. Aldrop is provided incase of double leaf door at lock rail section in the door in single leaf door, one more aldrop is provided in the inner lock rail section of the door One rotaing locking arrangements for the inner side of the door and additional provision for locking arrangements for lock is provided on the rear side of the door at an appropriate place. Incase of double leaf door M.S.Flat 32 x 3mm at 1.1Kg/m is provided on the one shutter t conceal the gap between the two shutters.at an appropriate place in the door. A tie bar is provided at the bottom of the frame to prevent twisting of frame during transportation and fixing. All members are given a coat of red oxide primer as directed by the departmental officers. The rate includes cost of all materials, labour charges, transportation to site of work, loading, un loading and all other incidental charges etc., complete.

Supplying and Erecting Pull and Push Type Rolling Shutter with ISI make of approved size and section using 18 GI sheet. The shutter shall be painted with one coat of red oxide primer and the rate is inclusive of hood covers, transportation charges etc

Painting new iron works such as steel doors, windows, ventilators, window bars, balustrades etc., with two coats of best approved first quality and colour of synthetic enamel paint over the existing red oxide priming coat in all floors excluding cost of priming coat etc., complete complying with standard specification. (The make, quality and colour of paint should be got approved by the Executive Engineer before use on works.)

Supplying and painting the walls with two coats of cement paint over one coat of cement primer as instructed by the departmental officers including preparation of surface curing, and including cost of primer etc. complete in all floors complying with standard specifications (The colour and shade of the cement paint shall be got approved by the Executive Engineer before use of work).

Supplying, fabricating and placing in position of RTS or MS reinforcement for all reinforced cement concrete works including cost of steel rods of all sizes including binding wires and labour charges for decoiling, cutting, bending and tying the grills in position etc., complete complying with standard specification and as directed by the departmental officers.

Supplying and Filling in Foundation and Basement with filling earth in layers of not more than 15 cm thick well rammed waterd and compacted 1 cubic meter etc. complete complying with standard specification.

Supplying for Rainwater down fall Pipe works only PVC pipe of working pressure of 4 kg/Sq.cm shall be adopted etc.complete complying with standard specification.

Wiring with 2x1.5sqmm(22/0.3) PVC insulated unsheathed SC. Cu.Conductor of 1100V grade in suitable PVC rigid pipe on wall and ceiling with PVC accessories with TW switch box with 5A F.T. switch inflush with wall, covered with hylum sheet of 3mm thick with painting of suitable colour for open PVC light / fan point (For electronic regulator) (5 Points Per Coil) etc., complete as directed by the Departmental officers.

Supply and fixing of single box type 20W LED fitting complete with 20W LED tube light with TW round block on wall or ceiling with PVC unsheathed copper leads from terminals to the fitting with necessary connection etc., complete as directed by the Departmental officers.

Supply and fixing of 1200 mm (48") AC ceiling fan complete with stepped electronic 300W regulator with 300mm down rod on the existing clamp. (Crompton High speed) etc., complete as directed by the Departmental officers.

Renewal by supply and fixing of 3 Nos. 5A (3 pin and 2 pin) combined flush type wall socket with control switches concealed in suitable TW box covered with hylem sheet in flush with wall with earth connection (for computer plug socket) etc., complete as directed by the Departmental officers.

Supply and fixing of 150W Flood light fitting on existing Tubular Pole with PVC unsheathed copper leads from this terminals to the fitting with including labour charges etc., complete as directed by the Departmental officers.

Supply and fixing of 80W LED Focus light (RGB) (Philips/ Havells/ Eq) on the existing post or wall with including labour charges etc., complete as directed by the Departmental officers.

Supply and fixing of 63A FP MCB Isolator in existing TPNDB with connections complete. [The MCB and metal enclosure should be with Legrand / Hager make]. etc., complete as directed by the Departmental officers.

supply and fixing of 3 Nos 6A to 32A SP MCB in existing TPNDB with connections complete. [The MCB and metal enclosure should be with Legrand / Hager make] etc., complete as directed by the Departmental officers.

Supply and fixing of 32A TPNMC switch on suitable angle iron frame work with MS cable entry boxes and with earth connections only etc., complete as directed by the Departmental officers...

Supply and fixing of 48W LED street light fitting on the existing 6 mtr post with PVC unsheathed cu.leads with testing etc., complete as directed by the Departmental officers..

Supply and laying of 2 x 10 sq.mm PVC armoured LTUG cable in a trench to be excavated at a depth of 0.75 metre putting 0.15 mt. Layer of sand and covering the cable completely with bricks and sand and refilling the earth to make good etc., complete as directed by the Departmental officers...

Supply and clamping of 2 x 10 sq.mm PVC LTUG armoured LTUG cable on post or on wall with MS Clamps etc., complete as directed by the Departmental officers...

Renewal by supply and fixing of brass cable gland for 2 x 10 sq.mm PVC armoured LTUG cable, with earth connection etc., complete as directed by the Departmental officers...

Supply and clamping of 4 x 16 sq.mm PVC LTUG armoured LTUG cable on post or on wall with MS Clamps etc., complete as directed by the Departmental officers...

Supply and fixing of brass cable gland for 4 x 16 sq.mm PVC armoured LTUG cable, with earth connection etc., complete as directed by the Departmental officers...

Supply and laying of 3 1/2 x 70 sq.mm PVC armoured LTUG cable in a trench to be excavated at a depth of 0.75 metre putting 0.15 mt. Layer of sand and covering the cable completely with bricks and sand and refilling the earth to make good etc., complete as directed by the Departmental officers...

Supply and clamping of 3 1/2 x 70 sq.mm PVC LTUG armoured LTUG cable on post or on wall with MS Clamps etc., complete as directed by the Departmental officers...

Supply and fixing of brass cable gland for 3 1/2 x 70 sq.mm PVC armoured LTUG cable, with earth connection etc., complete as directed by the Departmental officers..

Supply and providing cable end termination of 3 1/2 x 70 sqmm PVC LTUG Aluminium armoured cable with necessary aluminium cable sockets by crimping etc. with electrical connection etc., complete as directed by the Departmental officers..

Supply of 1 No 40 KVA Diesel Generator set of 0.8 P.F Three Phase 415 / 420 Volts, 50c/s, 1500 RPM as detailed below. A.ENGINE: Water cooled diesel engine suitable for Generator application with a shaft output of 310 BHP 1500 RPM under NTP conditions as per BSS 5514 / IS 10000. The Engine shall comprise the following standard scope of supply: (Make Kirloskar Green / Cummins / Ashok Leyand / Greaves/ Equivalent) 1.Dry type Air cleaner 2. Expansion bellow 3. Radiator, Radiator fan and mounting 4. Air to air charge 5. Exhaust Gas turbo charger 6. Lube oil cooler and Lube oil filter 7. Fuel filter (pre and Micro) 8. In-line Mono - block fuel injection pump with governor and fuel feed pump. 9. Electronic governor 10. 12 V Battery charging alternator 11. 12V Volt electric starter motor 12. Engine test Certificate 13. Residential Muffler 14. Fly Wheel with Housing 15. Exhaust silencer

SAFETY SYSTEM OF ENGINE The Engine shall trip for the following conditions with visual alarm device 1. Low lubricating Oil Pressure 2. High water temperature 3. Vee-belt failure and over speed The following visual indicator should also be provide Low Battery Indication. The Engine should be capable of providing 10% over load for one hour for every 11 hours continuous running at full load. b. ALTERNTOR: Alternator capacity of 40KVA / 32KW, AC 3 phase, 50HZ, 415Volts, 0.8 P.F 4 wire self excited, self regulated designed to run at 1500 RPM under NTS conditions conforming to BS 5514 / ISO 3046/ISO 8528 (part-II) 1992 to be coupled directly to the Diesel Engine and test cerfiticate (Make: Kirloskar Green / Crompton Greaves / Equivalent) c. Engine Standard Control Panel / Mounted: Micro processor based LCD display the following Monitoring features: a)Phase Voltages, Phase Currents, kVA, kW, kWh, kVAr, Power Factor. b) Lube oil pressure, engine temperature, RPM, Run Hours, Number of starts, Fuel Level, Auto / Manual stop.c) Battery charge condition. d) Common Alarm/Hooter outpur, AMF feature with ATS and with following Diagonistic features:a)Battery charging failure, Over/Under speed, Over Current, Over/Under Voltage, OverkW, Phase Sequencing, Phase missing. b) Low lube oil Pressure, High Engine Temperature, Low/High battery voltage, Low fuel level, Over Crank protection, Routing Maintenance indicator, Genset Test Facility. The engine should be cabable of providing 10% tempoary over loading.

d. ACOUSTIC ENCLOSURE Acoustic enclosure shall be powder coated and fabricated of 16 SWG CRCA MS sheet. The Silent canopy shall be of nut bolt type construction. Critical processes of punching are done on CNC machines to maintain dimensional accuracy of hole within 0.1mm. Power coating done after seven - tank surface preparation process of sheet metal. Canopy panel and doors shall have inside lining of FIRE RETARDANT 64 kg/ m density Mineral wool of 100mm thickness as acoustic material. Four hinged doors shall be provided to canopy. The average sound level at 1 Mt. Distance shall be less than 75 dB average or as per CPCB norms. e. BASE FRAME Base frame should be fabricated in sheet metal. The base frame is rugged in construction and designed for mounting engine and brush less alternator closely coupled, with cross members mounted on AVM. The base frame shall be provision for mounting of acoustic enclosure on it. The supply of Gen set includes loading, unloading and transportation charges.

f. FUEL TANK 100 Ltrs. Integral Built in Fuel tank shall be fabricated out of 14SWG CRCA MS sheet and its part of base frame. It is duly painted and fitted with inlet and outlet connections and mechanical fuel gauge. g. BATTERY 1 No 12V 88 AH Battery h. Supply of maintenance manual books with engine and alternator Parts list. i. Supply of tools required for the Maintenance and operations of the Generator set. j. Mounting of starting batteries of 1/2" thick hylem sheet base with suitable angle iron frame work support on the floor by the side of generator set to conform to latest CEIG conditions. k. Supply and laying of annunciation cable of suitable capacity and length between engine and the control panel of the generator set / Rate for item (a) to (k)) etc., complete as directed by the Departmental officers.

ERECTION OF GENSET: Providing suitable concrete foundation with cement concrete 1:2:4 with sand cushion all around the foundation and erection of generator set with proper alignment over the existing foundation etc., complete as directed by the Departmental officers..

Provision for electrical service connection etc., complete as directed by the Departmental officers.

supply and fixing of 100 Amps Four pole change over switch on suitable angle iron frame work with earth connection only etc., complete as directed by the Departmental officers..

supply and laying of 3 1/2 x 35 sq.mm PVC armoured LTUG cable in a trench to be excavated at a depth of 0.75 metre putting 0.15 mt. Layer of sand and covering the cable completely with bricks and sand and refilling the earth to make good etc., complete as directed by the Departmental officers..

Supply and clamping of 3 1/2 x 35 sq.mm PVC LTUG armoured LTUG cable on post or on wall with MS Clamps etc., complete as directed by the Departmental officers..

Supply and fixing of brass cable gland for 3 1/2 x 35 sqmm PVC armoured LTUG cable with earth connection etc., complete as directed by the Departmental officers..

Supply and providing cable end termination of 3 1/2 x 35 sqmm PVC LTUG Aluminium armoured cable with necessary aluminium cable sockets by crimping etc. with electrical connection etc., complete as directed by the Departmental officers.

Supply and run of 25mm x 3mm tinned copper flat with necessary clamps / supports on wall / floor / ground for earth connection etc., complete as directed by the Departmental officers..

Earthing as per the ISI specification with an earth electrode of 2.1mt class 'B' GI pipe of dia not less than 40mm, with copper earth plate of size 125mm x 50mm x 6mm, with necessary funneling arrangements with necessary masonry work and with 38mm RCC cover slab for the brick masonry etc., complete as directed by the Departmental officers.

Supply and run of 1 of No.8 SWG Copper conductor in Suitable PVC pipe on wall with painting of suitable colour for earth connection. etc., complete as directed by the Departmental officers.

Supply and fixing of three phase 3 HP DOL starter for existing siren motor with connections etc., complete as directed by the Departmental officers.

Providing electrical operating arrangements for the vertical lift geared shutters in Vaigai dam pickup anicut head sluice & Scour sluice as per the drawings. The hoisting arrangements includes screw rod with worm gear over the deck bridge platform. A 5HP geared motor, with output RPM 190, Reversible, 3 phase, 400 - 440V, shall be introduced into the existing gear arrangements appropriately, so that the shutter could easily be operated electrically. Necessary wiring from mains and starter for motor are provided as per site requirements. Motor bed shall be suitably provided as per site condition. A dust proof cover shall be provided to safeguard the motor from rain and shine. The surface preparation shall be done manually by wire brush, mechanical tools, etc. All equipment & accessories shall be checked for their correctness and aligned properly for smooth operation as directed by the departmental officers. The cost includes cost of motor and accessories, spares, consumables such as oil, grease, paint, fasteners, etc., process charges like cutting, welding, casting, grooving, machining, etc, labour charges for dismantling loading, lifting, unloading, scaffolding, charges, hire charges for equipment like generator, welding & cutting set, etc, conveyance of men & machinery to & fro from site of work & back, risk allowance for working at a height of more than 3m, cost of trial operation, etc., complete.

Overhauling of worm gear box to the pickdam shutters as per the following specification. The worm gear box comprising of worm nut and worm screw shall be opened up and cleaned & matched properly. Then requisite oil & grease shall be applied for efficient operation. The thrust bearing & oil seal shall be checked and then reused after cleaning & oiling. The worm nut shall also be checked if its wornout & then used. The cost includes cost of materials, labour charges, cost of servicing, tools & plants, cost of consumables like grease & oil, transport, etc, complete.

Reconditioning of cast iron roller of size 355mm dia of service and Renewal of bearings of SKF Nu- 220 with Oil seal, Labour charges including Lathing, Welding, Gas cutting, and also inclusive of all bolt and nuts, all paint and conveyance to this site, Loading and unloading charges, Grease packing, Lubricating oil, and Trial run satisfactorily, handing over of all old materials removed from this work to dam officials,The existing pin shall be machined and fitted snugly. Then the wheel shall be closed and fitted to the end vertical channel. Trial operation shall be conducted to ensure free movement & rotation of wheels. The cost includes cost of all materials, process charges like gas cutting, welding, machining, scaffolding charges, labour charges for dismantling, loading, lifting, unloading, transport, erection, labour charges for equipment's like crane, chain pulley block, power charges for generator, risk allowance for working at a height of more than 3m, conveyance to site and clearing them after completion of work including cost of trial operation etc., complete as directed by the Departmental Officers. All materials and works should be as per IS specification.

Replacement of side and top rubber seal flat type and Musical node as per IS 11855:2004 for the river sluice shutter with New Seal of size 1520x1830mm as per the following specification. The old rubber seal shall be removed from the skin plate after removal of the rusted bolts & nuts by gas cutting equipment's. The seal seat cover shall be removed along with the rubber seal. The skin plate & seal seat cover surface shall be neatly cleaned on either side by grinding. Now, the existing seal seat cover made of 100 x 10mm MS flat & rubber seal shall be now matched with the existing holes in the skin plate and then holes shall be drilled in the seal seat cover to align with that in the skin plate, if necessary. Holes shall be punched accordingly in the rubber seal of size 100x12mm. Then it shall be assembled for efficient operation, as directed by the departmental officers. All members shall be given a coat of epoxy primer over which two coats of anticorrosive coal tar epoxy paint shall be applied. The cost includes cost of materials, labour charges, hire charges for machinery like derrick, chain pulley block, gas cutting equipment, welding plant, erection, etc, cost of conveyance to & for from site of work, risk allowance, trial operation, warranty for 5 years except protective coating etc, complete.

Replacement of bottom rubber seal of the shutter as per the following specification. The old rubber seal shall be removed from the skin plate after removal of the rusted bolts & nuts by gascutting equipments. The seal seat cover shall be removed along with the rubber seal. The skin plate & seal seat cover surface shall be neatly cleaned on either side by grinding. Now, the existing seal seat cover made of 100x10mm MS flat & the new rubber seal shall be now matched with the existing holes in the skin plate and then holes shall be drilled in the seal seat cover to align with that in the skin plate, if necessary. 18mm holes shall be punched accordingly in the rubber seal of size 100x12mm/75x12mm. The inside surface of the seal seat cover is given a coat of anticorrosive zinc rich primer over which two coats of coal tar epoxy shall be applied at an interval of 24 hours between each coat. Now the rubber seal shall be placed on the skin plate over which the seal seat cover shall be placed and fastened with SS bolts & nuts of size M16x75. The cost includes cost all of materials, labour charges, transport, erection, hire charges for machinery, incidental charges like conveyance to & fro from site, etc., complete and as directed by departmental officers.

Providing abrasive blast cleaning(Sand) using air blast cleaning with abrasive aluminium oxide/steel grits/sand as per the following specification. Moisture should not be present on the steel surface during blast cleaning. All, oil, paraffin, grease & dirt shall be removed from the surfaces to be painted primarily before blast cleaning. Then all weld spatter, slag, burrs, loose rust and mill scale and other foreign substances shall be removed by blast cleaning . The average surface roughness after blast cleaning shall not exceed 35 to 50 µ. Blast cleaning shall confirm to Swedish standard SA 2 1/2 (near white metal). Blast cleaned surfaces showing plate surface defects such as scabs or sharp gouges shall be repaired in an approved manner prior to painting. After blast cleaning, the surface shall be dusted off or blown off with compressed air free of detrimental oil and water. All surfaces to be painted shall be completely dry, clean and free from moisture just prior to and during painting. If rust forms or the surface becomes contaminated in the interval between cleaning and painting, recleaning to the same degree shall be required. All safety precautions like wearing helmets, respirators & grounding of blast hose to dissipate static charges should be adopted as directed by the departmental officers. The cost includes cost all materials, labour charges, hire charges for generator , compressor, hopper, accessories, conveyance of machinery to & for from site of work, inspection charges, conveyance of machinery to & for from site of work, transport charges, scaffolding charges, consumables like oil & diesel for generator, risk allowance, etc, complete.

Application of a high performance primary coating to protect the steel structure from highly abrasive, erosive and corrosive environments. This being a industrial coating, enhances the life of the structure and reduces the strain of continuous maintenance. After surface preparation of the structure, a primer coat with epoxy primer shall be applied. The dry film thickness should be 40-60µ for primer coat. The colour is grey and minimum pot time should be 4 to 8 hours. The mixing ratio of base to accelerator by volume should be according to the manufacturers standard. All paint, when applied, shall provide a satisfactory film and a smooth and even surface. Paint shall be thoroughly stirred, strained, and kept at the uniform consistency during application. Paint shall not be applied when the temperature of the metal or surrounding air is below 10 degree Celsius and that of the metal is above 50 degrees Celsius, or when the humidity is above 90 percent, or when it threatens to rain before the painted coat gets dry. Primer coat shall be protected during the initial curing period against

the possibility of moisture condensation or contamination with foreign matter. All painting works shall be performed by airless spraying. When the coating material is applied by spraying, suitable means shall be provided to prevent segregation during the coating operation. Free oil and moisture shall be removed from the air supply lines of all spraying equipment. Primer coat shall be uniform and free from runs, slag and other imperfections. The time between successive coats shall be not less than the minimum nor more than the maximum re-coating time specified by the paint manufacturer. The paint shall be applied so that the thickness at any point is not less than that stipulated in the approved painting specifications. Surface not required to be coated, but adjacent to surfaces which are to be cleaned and coated, shall be adequately protected during cleaning and coating. Repairs to damaged areas of the coating shall be carried out strictly in accordance with the approved painting specifications. Because of the flammable and toxic nature of the coating materials, precautions should be taken to eliminate any health or safety hazard that may arise during the application of the coating. Smoking and welding shall not be allowed within 10 meters of the place when painting is in progress. The painting to the gates, hoists and other parts shall be done as per IS specification No.14177-1994. Guidelines for painting system for Hydraulic Gates and hoists and its Adjuncts Viz., IS: 1477 (Part I) – 1971, IS : 1477 (part II) -1971. The cost includes cost of primer & thinner, labour charges for application of primer, hire charges for compressor, generator & airless spray gun with its accessories, cost of oil, diesel & lubricant for generator, scaffolding charges, conveyance of machinery & tools to and fro from site of work, risk allowance, etc, complete,

Application of coaltar epoxy over the primer shall be through airless spray method. The colour shall be black and the mixing ratio of base to accelerator should be by manufacturer standards. The dry film thickness should be between 125-150 µ per coat. The interval before over coating shall be 24 hours. All paint, when applied, shall provide a satisfactory film and a smooth and even surface. Paint shall be thoroughly stirred, strained, and kept at the uniform consistency during application. Paint shall not be applied when the temperature of the metal or surrounding air is below 10 degree Celsius and that of the metal is above 50 degrees Celsius, or when the humidity is above 90 percent, or when it threatens to rain before the painted coat gets dry. Each coat shall be protected during the initial curing period against the possibility of moisture condensation or contamination with foreign matter. All painting works shall be performed by airless spraying. When the coating material is applied by spraying, suitable means shall be provided to prevent segregation during the coating operation. Free

oil and moisture shall be removed from the air supply lines of all spraying equipment. Each coat shall be uniform and free from runs, sags and other imperfections. The time between successive coats shall be not less than the minimum nor more than the maximum re-coating time specified by the paint manufacturer. The paint shall be applied so that the thickness at any point is not less than that stipulated in the approved painting specifications. Surface not required to be coated, but adjacent to surfaces which are to be cleaned and coated, shall be adequately protected during cleaning and coating. Repairs to damaged areas of the coating shall be carried out strictly in accordance with the approved painting specifications. Because of the flammable and toxic nature of the coating materials, precautions should be taken to eliminate any health or safety hazard that may arise during the application of the coating. Smoking and welding shall not be allowed within 10 meters of the place when painting is in progress. The painting to the gates, hoists and other parts shall be done as per IS specification No.14177-1994. The colour of the paint coat when applied is generally black but turns into brown over a period time. However, the properties of the paint remain intact assuring the performance. Guidelines for painting system for Hydraulic Gates and hoists and its Adjuncts Viz., IS: 1477 (Part I) – 1971, IS : 1477 (part II) – 1971. The cost includes cost of coaltar epoxy paint, thinner, etc, labour charges for its application, hire charges for compressor, generator, airless spray machine with its accessories , cost of oil, diesel & lubricant for generator, scaffolding charges, conveyance of machinery & tools to and fro from site of work, risk allowance, etc, complete,

GST 18 % in Figures

POTHIGAI ENTERPRISES