SPECIAL REPAIR /REPLACEMENT OF BER DG SET AND CHLORINATION PLANT OF WATER SUPPLY SYSTEM UNDER GE SATWARI

Amount

Diesel engine generating set 415 volts 63 KVA 3 phase 0.8 power factor 50 Hz, 1500 RPM self exicited self regulated brushless AC generator water cooled, installed including acoustic enclosure suitable for ambient condition at Jammu and confirming to condition under IS 4722, BS 5514/2613/5000 with following :- (i) The capacity of generator set shall be net after all due derating factor as per relevant ISI design (ii) The quoted rate shall be deemed to be inclusive of first fill of oil and final successful acceptance test. (iii) The quoted rate shall de deemed to be inclusive of 12 hours test run at site including of one hour on 10% over load in presence of representative detailed by accepting officer, all arrangements are to be made by the contractor for tests. (iv) The contractor shall arrange for artificial load for testing for final testing of DG set at site and the cost is deemed to be including in above offer.

(A) Alternator : Standard design alternator rated at 63 KVA net output at site after considering derating as per site conditions at 0.8 (lag) power factor AC, 3-Phase 4-wire 415 volts 50 Hz , 1500 RPM self exicited self regulated screen protected drip proof IP 23 enclosure brushless design with winding in pole faces, insulating class ‘H’ and voltage regulation of + 1% at rated voltage from no load to full load. The alternator shall be confirming to BS2613/5000 and shall be in position to generate supply with frequency regulation with in + 1% tolerance. The alternator will be suitable for tropical tolerance. The alternator will be suitable for tropical condition:- (i) Insulation class – H (ii) Temperature rise class – ‘H’ (iii) Excitation : Self excited (iv) Regulation performance : The voltage is kept constant with + 1%, manual voltage adjustment within + 5% . (v) Frequency regulation + 1% .

(B) DIESEL ENGINE : Adequate capacity of diesel engine recommendations Air cooled to drive independently above alternator and after considering derating as per site conditions after generating and reducing power consumed by accessories, directly coupled through flexible coupling, multi cylinder multi stroke direct injection, cold starting 1500 RPM, as per relevant ISI/BS – 5514 with an over load capacity of 10% for one hour in 12 hours continuous running complete with standard (i) Fly wheel with housing (ii) Cooling system : Mounted radiator with fan & belts. (iii) Cooling water pump : Centrifugal type belt driven.

(iv) Exhaust System : Exhaust system complete with exhaust piping of 200 mm dia with MS pipe light grade upto and away (as per CPCB norm) from the enclosure to be erected, covered with asbestos rope and aluminium foil of 28 SWG complete with in the enclosure for safe exhaust without transforming vibration to the wall of the enclosure. Exhaust gas turbo charger type Exhaust manifold Silencer : Residential type bellows (C) FUEL SYSTEM : Fuel injection system with fuel injectors, fuel injection solenoid switch/nozzles/governer electronic type capable for 1% speed / frequency regulation. Fuel fileters Fuel hoses (i) Lub oil system :- Lubricating oil filter, Lubricating oil pump (ii) Air Intake system :- Air intake Manifold, Air cleaner dry type (iii) Governer :- Electronic Governer (iv) Starting System : Electric self starter with maintenance free batteries including battery charging alternator

(D) BATTERIES :- 1 No Maintenance free Batteries of 12 Volt 180 AH capacity complete with copper conductor multistranded leads of suitable length from self starter to the battery terminals complete with initials charge and initial fill of electrolyte complete. Starter gear ring Start and stop push button Ignition key / Switch Handling and operation : Salient features of accessories shall be as under :- Radiator with blower fan Corrosion inhibitor coolant Paper elements filters for fuel, lub oil and by pass Electronic governer controlled direct fuel injection system Fly wheel housing and fly wheel

(E) GENERATOR MONITORING PANEL : Comprising of following :- (a) Microprocessor based genset controller (Power Command) for metering, monitoring, governing and (b) Engine protection for low lub oil pressure, high coolant temperature (alarm & shutdown) (c) Alternator protection parameters like under voltage, over current, under frequency, over (d) Relay driven for remote annunciations (e) Cyclic cranking. (f) Auto/manual start/stop (g) Alternator trim adjustment from the front key pad (h) Operates within a temperature range 0-60 degrees and humidity upto 95% (i) Remote monitoring capability through separate interface modules (j) Genset metering parameters like lube oil pressure, coolant temperature, engine speed (RPM), run hours, DC voltage, intake manifold temperature, 3 phase volts and 3 phase amperes, frequency, KW, KVA power factor etc.

(i) Safety Controls : Engine low lube oil pressure, high water temperature and over speeding of engine (ii) Coupling arrangement : Flexible coupling, fly wheel to suit flexible coupling fly wheel housing. (iii) Accessories : AVM pads built or separately mounted to manufacturer base frame (iv) Base Frame : Made out of ISMC 250 of study design made of MS channel with necessary reinforcement and predetermined holes. (F) FUEL TANK : Daily service fuel tank of suitable capacity as per manufacturers instruction to store 12 hrs running fuel DG Set, made out of 3 mm thick HR sheet top and bottom with calibrated level indicating arrangement, stop cock, drain plug, fuel pump of suitable capacity complete on a common base within the Acoustic Enclosure.

(H) Acoustic enclosure : Enclosure is free standing floor mounted factory built and modular in construction to facilitate easy assembly at work site and will be drop over housing type. It will consist of acoustically treated panel housed in sheet steel. (i) Custom built product for various equipments, with ensure the optimum performance without duration. (ii) Rugged in construction maintenance free and modular designs which facilitate easy at site. (iii) 16 SWG (1.6 mm) Thick CRCA sheets to be used for enclosure panel to ensure longer life against weathering action. High quality acoustic insulation materials to be used as per IS:8183 for maximum sound absorption. (iv) Sheet metal components of the enclosure should undergo various stages of surface treatment prior to painting which leads to be better life of the enclosure against wreathing action. (v) Special paint treatment with pure polyester powder epoxy to be provided for better weather resistance.

(vi) Well designed ventilation system to be provided to pump up the heat in the chamber efficiently. (vii) For efficient acoustic / weather sealing a special type weather sealing gaskets, new frame rubber gasket to used. (viii) Working space is to be provided around the equipment for easy maintenance / repair (ix) Necessary cut out provision for entry and exist of fuel lines cable to be incorporated in the enclosure as per the requirement (x) A see through transparent window (glass or acrylic) in front of engine panel to provided for monitoring the operation. (xi) Ducting if required, bellows, mechanical hardware like locks, hinges fasteners etc to be provided.

(xii) Deliverables, 75 DBA @ 1 mtr at 75% load under free field conditions. The temp inside the enclosure will be within 7 Degree above ambient temp. (xiii) The enclosure should be provided with bulk head light fittings for inside illumination. (xiv) The batteries should be placed inside the enclosure beside the DG set on a suitable insulated plateform. (xv) The DG set should be provided with external emergency stop push button (xvi) The acoustic enclosure parts shall be of powder coated after pre treatment process. The powder coating shade should be Genset Green. The base frame should be painted with epoxy based black shade. (J)The following items are deemed to be included in the rate quoted for all DG sets :- Civil Works :- All civil work including PCC plate form and related to foundations including of panel and equipments including making good and existing structure of disturbed during installation and commissioning of genset. The depth of the foundation shall be minimum 30 cm and as directed by EIC.

Supply, installation, testing & commissioning of Reciprocating dosing pump, high pressure, single head, gear motored adjustable dosing pump having output of 2 U.S. GPD to 40 U.S. GPD and adjustable high pressure of up to 100 PSI with accessories including lead , tubing, connection nuts, injection check valve, clay weight and ferrules and 100 liters FRP tank with lid & Level gauge along with Agitator and shaft & blade in plastic mounted on tank. The agitator motor must possess following specifications:-

Voltage input 230V, Single phage, 50HZ, 900 RPM of suitable capacity. The accessories in the dosing system must consist of the following:- a) Preparation tank: i) Water inlet line ii) Outlet with strainer iii) Drain iv) Overflow v) Conical bottom for sludge disposal vi) Port whole with cover vii) Level gauge viii) Agitator:120watts, 900 RPM, single phase flange mounted motor with plastic shaft & impeller. b) Service Tank: i) Water inlet ii) Dosing Pump mounting provision on lid / wall iii) Drain iv) Overflow v) Level Gauge vi) Inspection Port. Model: 96NGQ51 & ADS-DUO Make: Declibac Technologies (P) Ltd or equivalent as approved by GE.

XLPE PVC insulated,armoured,heavy duty LT electric cable with an inner sheathing of PVC tape armoured with galvanised steel wire or tape and overall PVC cheathed,rating1100 volts grade of size 70 sqmm. 3.5 core, complete all as specified.

XLPE PVC insulated,armoured,heavy duty LT electric cable with an inner sheathing of PVC tape armoured with galvanised steel wire or tape and overall PVC cheathed,rating1100 volts grade of size 95 sqmm. 3.5 core, complete all as specified.

Rubber mat of size 1MtrX2MtrX10mm (ISI Marked) as approved by GE, complete all as specified.

On load change over switch 415 V 4 Pole of cap 200Amp in sheet metal enclosures , complete all as specified.

Earthing complete with galvanized steel earth plate electrode 60 cm x 60cmx6 mm thick buried directly in ground to a depth not less than 2.25 mtr below normal ground level with top edge of earth plate at a depth not less than 1.5 mtr below ground level, earth plate surrounded by 15 cm thick packed layer of charcoal and common salt and connected with and including GI strip of size 32 x 6 mm by means of bolts, nuts, check nuts and washers of GI 40 mm bore GI pipe light grade from earth plate up to testing point for protection of GI strip and 20 mm bore GI pipe (light grade) with wire mesh and funnel for watering including necessary excavation and earth work, (in any type of soil) PCC chamber (1:3:6) type C-2 with RCC cover with complete all as shown in electrical plate No 3 of MES schedule Part I of SSR Part-I complete all as specified Note : (i) RCC pit cover shall be precast of RCC (1:2:4) type B-1, 80 mm thick, reinforcement with 8 mm tor steel in lieu of CI cover and cost of same is deemed to be included in the rate quoted by the contractor.

(ii) Earth electrode shall be projected upto test pit using necessary arrangement with suitable size GI pipe and cost of same is deemed to be included in the rate quoted by the contractor. (iii) RCC cover shall be painted with red paint over a primer coatand cost of same is deemed to be included in the rate quoted by the contractor.

Excavatioin in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth and taking out any type of soil for laying of cable /exavation of pole/stay pit excavation, complete all as specified.

Returning and filling including spreading levelling watering and well ramming in layers not exceeding 25 cm, complete all as specified.

Removing excavated material to a distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5 m above the starting point, complete all as specified.

Sand cushioning to underground cables provided with a layer of sand 8cm thick before laying the cable in trenches and 15cm thick after laying the cable in trenches complete all as specified. Note:- 1.Dry fine sand of best available quality shall be used. 2.Punned thickness shall be made and paid.

Sub class `B` bricks laid dry flat transversely along the length of cable with width equal to the length of bricks over sand cushioning as protection cover of cable laid, complete all as specified and directed.

BMMJ TRADERS AND ENGINEERS

ANIKET TRADERS

Sarbat Construction Co

Kay Bee Traders

SATISH AND CO