Prequalification For Electromechanical Works On Switchyard Hydro Mechanical Works On Penstocks And Gates At ...

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Prequalification For Electromechanical Works On Switchyard Hydro Mechanical Works On Penstocks And Gates At Enguri Dam Engurhesi Ltd Hereinafter Referred To As The Client Intends Using Part Of The Proceeds Of A Loan From European Bank For Reconstruction And Development Hereinafter Referred To As The Bank Towards The Cost Of Enguri Hydro Power Plant Rehabilitation Project The Client Intends Prequalifying Firms And Consortia To Tender For The Following Contract S Hereinafter Referred To As The Contract To Be Funded From Part Of The Proceeds Of The Loan The Aim Of The Contract Is To Carry Out The Refurbishment And Moderinzation Of The Electrical And Hydromechanical Equipment Of Enguri Hpp Facilities The Enguri Dam Is Located In West Georgia Tsalenjikha Region 35 Kilometers From The Regional Center City Zugdidi While The Enguri Hpp Is Located In Gali Region 16 Kilometers From The Temporary Abkhazian Border The Dam And The Power Plant Are Connected With The 15Km 9 5M Pressure Tunnel The Scope Of The Contract Includes The Rehabilitation Of The Following Equipment Hydro Mechanical Part Enguri Bottom Outlet Gates Maintenance And Service Gates Rehabilitation With Replacement Of Hydraulic Cylinders The Upstream Guiding Strips And Lateral Guiding Blocks Need To Be Fully Replaced By Uhme Pe Ultra Hoch Molecular Polyethylene Plates Provision And Installation Of All Sealings Between The Maintenance Gate Bonnet Covers And New By Pass Valves Additional Service Butterfly Valves 5000 Mm For Turbine Penstocks Rehabilitation Complete Of The Electrical Overhead Travelling Eot Crane 800 Kn 200 Kn Rehabilitation Of The By Pass System Of The Present Valves And The Aeration Valve Replacement Of All Hydraulic Cylinders Of The Present Valves Design And Installation Of One New Butterfly Valves With All Their Auxiliaries As A Pilot Optional Additional Butterfly Bypass 6000 Or Redesign Of Existing Bypass In Pressure Tunnel Valve Chamber Complete Rehabilitation Of Electrical Overhead Travelling Eot Crane 1000 Kn 200 Kn Provision And Installation Of Four 2X2 Manually Operated Spherical Valves Dn 400 Pn25 Incl All Necessary Piping Provision And Installation Of Extra Eight 4X2 Manually Operated Spherical Valves Dn 400 Pn25 Provision And Installation Of 4 New Servomotors 800 X 160 X 2122 Mm For The Butterfly Valve 6000 Including Valve Drifting Monitoring System New Gates And Hoists For Vardnili 2 Hpp Cleaning Repair Both Concrete And Mechanical Parts And Painting Of All 4 Spillway Maintenance And Service Gate Embedded Parts To Receive The New Spillway Gates After Structural Calculations Repair The Remaining Hoist Structures And Complete It To Receive The 2 Winch Hoisting Units Of Capacity Of 2X320 Kn Provide And Install 2 Winch Hosting Units Of The Capacity Of 2X320 Kn In Two 2 Spillway Structures With New Roof Construction Provide And Install Local And Remote Control Equipment Electrical Cabinets For Two 2 Hoisting Winches With A Capacity Of 2X320 Kn Provide And Install 2 Fixed Wheel Roller Gates As Spillway Service Gate In The 2 Spillway Structures Provide And Install One Fixed Wheel Roller Gate As Spillway Maintenance Gate Common For Both Spillway Structures Provide And Install Necessary Gate Dogging Devices On All Spillway Gate Slots Rehabilitation Of Existing Gates Sealings And Hoists For Enguri Diversion Weir To Gali Reservoir Provide And Install The New Steel Construction To Support The Hoists With New Foundation Bolts On All 5 Spillway Gates Etc Install New Hoisting System Of Sufficient Capacity Or Install Hydraulic Strand Jack Rehabilitation Of All 5 Spillway Gates Provide A Mobile Electric Generator Of Required Capacity To Lift One Spillway Gate At A Time Electro Mechanical Part Partially Replacement Of Complete Auxiliary Power Supply System Including Transformers Distribution And Sub Distributions 0 4 Kv 50 Hz Direct Current System Partially Replacement Of Power Supply And Control Cables In Dam Galleries Including Arrangement Of Cable Trays And Channels Replacement Of 6 3 Kv Main Distribution Board Including Control And Protection System Installation Of Step Up Transformer For Existing Low Voltage Emergency Diesel Generator Set To Feed The Emergency Consumer Via 6 3 Kv Line Replacement Of Lighting System In Selected Galleries Replacement Of Equipment In 35 6 3 Kv Switchyard Including Circuit Breaker Disconnectors Instrument Transformers Protection System Surge Arresters Isolators Connections Lightning System Etc Installation Of Redundant 35 6 3 Kv Power Line With Circuit Breaker Disconnectors Step Down Transformer Instrument Transformers Protection System Lighting System And Auxiliary Power Supply 6 3 0 4 Kv For Yard Supply Reconstruction And Refurbishment Of The Existing 6 3 Kv Overhead Line With The Dedicated Towers Isolators And Conductors The Client Will Provide Basic Design For The Rehabilitation Activities The Rehabilitation Activities Can Be Implemented Concurrently The Expected Construction Period Is 18 20 Months According To The Operational Conditions Of The Plant Prequalification And Tendering For Contracts To Be Financed With The Proceeds Of A Loan From The Bank Is Open To Firms And Joint Ventures Of Firms From Any Country Prequalification Documents May Be Obtained From The Office At The Address Below Or In Electronic Format Free Of Charge The Prequalification Documents Must Be Duly Completed And Delivered To The Address Below On Or Before 14 August 2018 By 16 00 Hrs Local Time Documents Which Are Received Late May Be Rejected And Returned Unopened Interested Firms May Obtain Further Information From And Inspect And Acquire The Prequalification Documents At The Following Office Closing Date 14 Aug 2018 At 16 00 Local Time

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