SPECIAL REPAIRS REPLACEMENT OF PLANT AND MACHINERIES AGAINST BER IN TECHNICAL AREA ATCVRDE, AVADI CHENNAI

Supply, installation, erection, commissioning, and performance load testing of 20 MT Capacity Double Girder Electric Overhead Traveling (EOT) Crane, complete with all structural, mechanical, electrical, and control systems including runway rail complete as per the following technical specifications on existing Gantry girder/runway beams on both sides over the RCC column brackets including taking down old crane of any discription , capacity & depost the same in the storeyard of AGEE/M avadifor safe custody :- (A) Structural & Performance Parameters Capacity: 20 Metric Tons (MT) Span: 20 Meters (Approx) Class of Duty: Class-4 as per IS 3177 / IS 807 (Latest Version) Height of Lift: 6 Meters Operation Location: Indoor environment (B) Speed & Motion Profiles Hoist Speed: 3 Meters / Minute Cross Travel (CT) Speed: 2 Meters / MinuteLong Travel (LT) Speed: 5 Meters / Minute (C) Drive & Motor Configurations: Hoist Motor Rating: 14.71 KW (Qty: 1 No) Cross Travel Motor Rating: 3.75 KW (Qty: 1 No) Long Travel Motor Rating: 2.2 KW (Qty: 2 Nos) VVFD Drive:Variable Voltage Frequency Drive for all motions

(D)Mechanical Components Gear Boxes: Helical / Custom Gear Box (Approved Makes: Elicon Gear Box / Shanthi Gears / SCW / Kirlosker / Arrow Gear Company / Radicon Gear) Cross Travel Power Supply System: Dog Chain typeHoist Wire Rope: 18 mm Diameter, 6 x 36 construction (Approved Makes: Usha Martin / Orion / JK) Hoist Number of Falls: 8 Falls LT Wheel Diameter: Ø 600 mm CT Wheel Diameter: Ø 250 mm Hook: Single Shank, forged steel as per IS 3815 (E) Electrical, Safety & Control Systems Operation Control: Floor-independent pendant push-button station along with a wireless Remote Control system Power / Control Voltage: 415V, 3 Phase, 50 Hz main power supply; 110V AC, 1 Phase, 50 Hz control voltage Safety Limit Switches: Provided for Hoisting, Cross Travel (C.T.), and Long Travel (L.T.) limits Mechanical Protection: Rubber Buffers provided on Long Travel end carriages Crane End Clearance: Minimum 250 mm clearance maintained (F) Surface Treatment & Painting Cleaned, prepared, and finished with 1 Coat of Primer Yellow followed by 2 Coats of Golden Yellow color paint.

Providing, fabricating, supplying, installing, testing and commissioning Water Treatment Plant of capacity 50 Cum/Hr (50,000 LPH) consisting of MS Oxidation Chamber of size 1000 mm dia × 1000 mm straight height fabricated from 8 mm thick MS shell, dished ends and bed plate, charged with MnO₂, hard coke and graded gravel media, complete with 150 mm dia pipe connections and suitable for 3–4 kg/cm² working pressure; Pressure Type Iron Removal Filter of size 2000 mm dia × 2100 mm straight height fabricated from 8 mm thick MS shell, 10 mm thick dished ends and 8 mm thick bed plate, complete with bed plate under-drain system with strainers, 150 mm dia piping connections, CI butterfly valves, pressure gauges, sampling cocks, air vent arrangement, pebbles, graded gravel and zeolite media, suitable for 3–4 kg/cm² operating pressure; and Chemical Dosing System comprising 10 LPH dosing pump against 7 kg/cm² back pressure complete with injection check valve, foot valve, suction/discharge tubing, 200 litre FRP solution preparation tank with inlet, outlet, overflow, drain, manhole cover and level gauge, geared agitator with SS-304 shaft and impeller mounted on heavy-duty MS fabricated frame.

The complete system shall be internally coated with anti-corrosive black bituminous paint and externally finished with red oxide primer and synthetic enamel paint, including all supports, fasteners, foundation bolts, erection, testing, commissioning and satisfactory operation of the plant complete in all respects as per manufacturer's specifications and as directed including taking down old Water Treatment Plant of any discription , capacity & depost the same in the storeyard of AGEE/M avadi for safe custody

Supply, installation, testing and commissioning of horizontal monoblock centrifugal pump set in replacement suitable for 450 Volt, 3 Phase, 50 Hz Designed for suitable capacity for pumping water with total head minimum 48 metres to maximum head 65 metres, discharge capacity minimum 13 LPS to maximum 28 LPS. Pump body shall be made of cast iron, impeller of bronze, and other hydraulic components of cast iron. Pump shall be complete with mechanically balanced rotating parts, shaft, bearings, coupling arrangement, base frame, nuts, bolts and accessories. Pump suction size shall be 100 mm and delivery size 80 mm complete all as specified and directed.

Supplying, Installation, Testing & Commissioning of ‘Silent Type Diesel Generating set of capacity 62.5 KVA as per CPCB IV + or better norms along with having Prime Power Rating of KVA as here in before, 415 volts at 1500 RPM, 0.8 lagging power factor at 415 V suitable for 50 Hz, 3 phase system & for 0.85 Load Factor, including testing at factory and site with fuel, load for test and other necessary arrangements Complete as per CPWD specifications, should have QR code which should contain drawing, test report OEM manual,Geo- Tag of manufacturing location, rating plate as per relevant IS Code etc. and consisting of the followings: (A) Diesel Engine: Tourbocharged Diesel engine 4 stroke water cooled, multi cylinder, dynamically balanced fly wheel, electric start of suitable BHP at 1500 RPM suitable for above output of alternator at 40 0C, 50% RH & at 1000 Meter MSL , capable of taking 10% over loading for one hour after 12 hours of continuous operation .

The engine will be with Electronic governor, Dry type Air filter with service indicator, first filling of engine fuel (after commissioning) lubricating Oil, Coolant and other consumables complete with all the required accessories, the Electronic governor shall be as per ISO 8528.The engine shall comply to the latest CPCB norms (CPCB IV + or better) and Conforming to BS 5514, BS 649, IS 10000, IS 10002, IS 13018 and as per CPWD specifications. (B) Engine mounted Instrument Panel fitted with and having digital dis Plate for following: (i) Start-stop switch with key (ii) Water temperature indication (iii) Lubrication oil pressure indication (iv) Lubrication oil temperature indication (v) Battery charging indication and Voltage indication

(vi) RPM indication (vii) Over speed indication (viii) Low lubricantion Oil trip indication (ix) Engine Running Hours indication (x) Fuel Level (C) Alternator: Synchronous alternator rated of appropriate KVA, 415 volts at 1500 RPM, 3 phase 50 Hz, AC supply with 0.8 lagging power factor at 40 0C, 50% RH & at 1000 Meter MSL. The alternator shall be having Screen Protected Drip Proof (SPDP) enclosure IP23, brushless, continuous duty, dynamically balanced rotor, capable of taking 10% over loading for one hour after 12 hours of continuous operation, self cooled,self-excited and self-regulated through AVR conforming to IS13364(Part 2)/IS: 4722/BS 2613 suitable for tropical conditions and with class- H insulation. (D) Base Frame & Foundation: Both the engine and alternator shall be mounted on suitable base frame made of MS channel with necessary reinforcement which shall be installed on suitable cement concrete foundation and vibration isolation arrangement as per recommendations of manufacturer.

(E) FUEL TANK: Daily service fuel tank of suitable liters capacity as per CPWD Specifications, fabricated out of 3 mm thick M.S. sheet complete with all standard accessories and fuel piping between fuel tank and diesel engine with MS class ‘C’ pipes of suitable dia. Complete with valves, level indications & accessories as required as per specifications. (F) Exhaust System: Dry exhaust manifold with hospital type exhaust silencer and catalytic convertor. (G) Starting System: 12V/24V DC starting system comprising of starter motors: voltage regulator and arrangement for initial excitation complete with suitable numbers of batteries (180 AH capacity lead acid SMF type) as required as per specifications. The battery shall be housed inside the acoustic enclosure of DG Set. (H) Acoustic and weather proof enclosure with arrangement for fresh air intake for cooling of the engine & alternator, extraction, discharging hot air in to the atmosphere and the temperature rise inside the enclosure, noise level outside enclosure. The acoustic enclosure should be suitable for cable connection/connection through bus-trunking. Such arrangements on acoustic enclosure should be water proof & dust-proof conforming to IP-65 protection. The enclosure shall be as per CPCB IV + or better norms etc. and as per CPWD specifications.

(I) AMF Panel: Free standing floor mounted IP 42 automatic mains failure control panel including auto by-pass, suitable for KVA as below for silent type DG set complete with relays, timers, set of CTs for metering & protection and energy analyser to indicate currents, phase and line voltages, frequency, power factor, KWH, Kilo Volt Ampere Reative Hour (KVARH), KVA (Phase & Total), KW & provision for overload, short circuit, restricted earth fault, under frequency, power (aluminium) and control (copper ) cabling of suitable size upto 15 meter between AMF panel, LT Panel and DG Set including connection interconnection etc. as required, all complete and inter locking and communication/ Ethernet /RS485/SNMP port open protocol for BMS integration including suitable software, the panel shall be of DG Set OEM make etc. as per approved by Engineering in charge and including the following: 1. Suitable numbers and appropriate capacity 4 pole motorised electrically operated draw out with cradle type 3 position ACB/ MCCB with electronic release for O/C & E/F and shunt trip. 2. Auto/Manual/Test/Off selector switch