Fire Water Pump Replacement

{
  "buyer": {
    "id": "GB-COH-02732548",
    "name": "LONDONENERGY LTD"
  },
  "date": "2026-01-22T10:11:54Z",
  "id": "005623-2026",
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  "ocid": "ocds-h6vhtk-060962",
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        {
          "id": "PXMX-9411-QDZJ",
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        "country": "GB",
        "countryName": "United Kingdom",
        "locality": "London",
        "postalCode": "N18 3AG",
        "region": "UKI54",
        "streetAddress": "Ecopark, Advent Way"
      },
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        "email": "Procurement@londonenergyltd.com"
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      "id": "GB-COH-02732548",
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      "name": "LONDONENERGY LTD",
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    "description": "Please email lewis.atkinson@londonenergyltd.com to declare interest\nA)  Introduction\nLondonEnergy Ltd (The Company) own and operate the EcoPark Energy Centre located in Edmonton, London. The Energy Centre has five boilers burning approximately 500,000 tonnes of domestic refuse per year in a continuous 24-hour operation, 7 days per week. The waste is delivered by road via the weighbridges/gate house by various types of transport. The waste is tipped and held in storage bunkers. Waste is fed by three 5m3 grabbing cranes from the storage bunkers to the feed chutes of each boiler. Each of the water tube boilers is operated to achieve an evaporation rate of 40 tonnes per hour, at a steam pressure of 41.5 Bar and temperature of 415 OC. Material which remains after the incineration process is transferred to the residual conveyors for onward transfer for further treatment and recycling.\nWithin the EcoPark, there is a firewater ring main system consisting of:\n1)\t2 x Firewater Pumps\n2)\t1 x Sprinkler Header with level control (float switch start)\n3)\t1 x Fire Water Ring Main (with pressure-controlled start capability)\n4)\t40 x Isolation Valves\n5)\t18 x Fire Hose Points\n6)\t18 x Fire Hose Connections\n7)\t20 x Fire Hydrants\n8)\t1 x Crossover Pipeline (for pressure compensation - to be decommissioned and replaced with the jockey pump)\nThe Eco Park Firewater Pump Project aims to install two new diesel firewater pumps and integrate them with the London Energy DCS system. This will enhance the control, monitoring, and visibility of the fire protection system compared to the currently installed setup. Additionally, a new jockey pump will replace the existing crossover system to maintain pressure in the Firewater Ring Main.\nIn addition to the installation of two new firewater pumps and a jockey pump, this project requires enhanced visual, audible, and control capabilities. All components and alarms must be integrated with the SCADA system, ensuring seamless monitoring and control.\nB)  Project Scope\n1)\tReplace the existing firewater pumps with two new diesel driven firewater pumps. Disconnection of the existing cables from the current firewater pumps and re-termination into the new firewater pump panel. Extending the existing cables via a JB or cable joint. Installation of any additional cables (to be specified and installed by the contractor).\n2)\tSelect, procure and install a new jockey pump to maintain Ring Main pressure. Installation of any additional cables (power and control) for the jockey pump. \n3)\tUpgrade repeater panels to communicate all alarms and faults to the SCADA system.\n4)\tImplement DCS-based control and monitoring of the firewater pumps and jockey pump through SCADA.\n5)\tAll technical documentation and drawings are to be provided to LEL by the selected contractor for upload to the London Energy SharePoint, by LEL.\n\u2003\nC)  Control Specifications\nThis section outlines the existing control and installation configurations, as well as the required upgrades.\nExisting Control and DCS Specifications (Electrical):\n\u2022\tAuto Start: Currently initiated via the \"Firewater Pump Test Panel\" located on the turbine mezzanine level and from the Sprinkler Header Level Switch.\n\u2022\tManual Start: Operated through local control panels at each pump and at various push buttons throughout site. Manual stop is only available via the engine choke on the diesel engine.\n\u2022\tIndications Available:\no\tPump running\no\tBattery circuit healthy\no\tBattery charger healthy\no\tPump on demand\no\tFail to start\no\tLow oil pressure\no\tHigh water temperature\no\tLamp test\no\tAlarm acknowledgement\nAll above indications are repeated on remote repeater panels located in the Turbine Hall (East end).\n\u2022\tAudio and visual alarms: Present on both local and remote panels.\n\u2022\tNo current control or status indication is available in the CCR via SCADA\nFault Indication and Alarms (Current Local Control Panel):\no\tHigh water temperature\no\tLow oil pressure\no\tBattery charger failure\no\tBattery circuit failure\no\tFail to start\no\tPump on demand\no\tAlarm acknowledgment\no\tRepeater panels provide remote visual and audible alarms.\no\tThe local test panel enables auto start/stop of firewater pumps\no\tNo current DCS connectivity or SCADA monitoring of pump operation\nFault Indication and Alarms (New Local Control Panel to be installed):\nThe new firewater pump control panel (provided by SPP Pumps) will use a volt-free contact for a common fault alarm. Individual alarm indications will be shown locally via the HMI.  Features include an integrated PCB board with volt-free contacts and designated inputs, dual 10A battery chargers and 12V DC batteries for ignition coil and motor starter.\nAlarm and Status Indications:\no\tNot in Auto Mode\no\tPump Running\no\tPump on Demand (via Float, Pressure or Manual Start request)\no\tFailed to Start\no\tMains Supply Failure\no\tHigh Water Temperature\no\tLow Oil Pressure\no\tLow Engine Cooling Water Flow\no\tLow Fuel Level\no\tLow Engine Temperature\nD)  New Control Specifications\nThis section outlines the specifications for the new firewater pump control system to be installed by the selected contractor, including all hardwired electrical requirements, the selected contractor is expected to incorporate the existing manual and automatic start functions.\nNew Control System Specifications:\n1.\tAuto/Remote Start\nAuto or remote start will be initiated from the Firewater Pump Test Panel. Interconnections required to enable this function are shown in the associated project drawings.\no\tAll interconnection work will be carried out by the selected contractor.\n2.\tManual Start\nManual start shall be initiated locally via push buttons installed on the new control panel at each firewater pump. These panels include an integrated HMI display.\n3.\tLocal Indication and Fault Display\nThe new control system shall provide local indication of the following conditions via LEDs installed on the new repeater panels.\no\tPump Running\no\tHigh Water Temperature\no\tLow Engine Temperature\no\tLow Cooling Water Flow\no\tRemote Start Active\n4.\tRepeater Panel Signal Integration\nPre-existing repeater panel cables will be reused. These will be terminated in the new repeater panels, which will display:\no\tPump Running\no\tFault Alarm\no\tNot in Auto Mode\no\tPump on Demand\no\tMains Failure\no\tFailed to Start\nInterconnection between the new firewater pump control panel and repeater panels will be made using an IP67-rated polycarbonate junction box, installed locally at the new firewater pump.\no\tAll terminations will be completed by the selected contractor\n5.\tRepeater Panel Construction\nRepeater panels will be built on-site by a LEL-specified technician.\no\tAll components must comply with the appropriate SIL (Safety Integrity Level) as defined by selected contractor.\n6.\tSWA Cable - Mezzanine Floor\nA single 3-core cable, conforming to LPC Technical Bulletins 210 and 236 (TB210 and TB236), shall be routed between the junction box and the relay/start push-button station on the Mezzanine Floor for each firewater pump shall be installed by the contractor.\n7.\tSWA Cable - Firewater Pump Control Panel\nA single 19-core SWA cable conforming to LPC Technical Bulletins 210 and 236 (TB210 and TB236), shall be routed between the junction box and the control panel on each firewater pump.\n8.\tSirens\nExisting orange mineral-insulated cables for the sirens on Panel 1 and Panel 2 must be reinstalled on top of the new control panels.\n9.\tA LPCB flow meter is to be provided and installed in accordance with LPC rules (technical bulletins) incorporating BSEN12845, with an integral \"self-test\" return loop for both pumps.\nExisting Repeater Panel - Indications and Installation (Turbine Hall):\nCurrent repeater panels provide the following indications:\n1.\tHigh Water Temperature\n2.\tLow Oil Pressure\n3.\tBattery Charger Failure\n4.\tBattery Circuit Failure\n5.\tFail to Start\n6.\tPump on Demand\n7.\tAlarm Acknowledgement\n8.\tVisual and audio alarms for remote fault indication\n9.\tLocal Test Panel for auto start/stop control\nNo DCS or SCADA connectivity for pump status or alarms\nNew Repeater Panel - Indications and Installation (Turbine Hall):\n1.\tCommon Fault Alarm - Visual and audible indication\n2.\tNot in Auto Mode\n3.\tFailed to Start\n4.\tPump on Demand\n5.\tPump Running\n6.\tMains Failure\nFull DCS/SCADA Integration - All alarms and remote start/stop functions to be extended to SCADA, existing cabling will be reused for connectivity between new firewater pump control panels and repeater panels, Sirens to be reinstalled on top of new control panels\nE) Jockey Pump Specifications\nThis section outlines the installation requirements for the jockey pump, including electrical, control, and mechanical specifications\n1.\tDecommissioning:\no\tTwo \"Dust Extraction Pump Discharge\" pumps are to be disconnected, removed, and associated cables made safe.\n2.\tInstallation:\no\tA Jockey Pump will be installed in place of the \"TY192 Dust Extraction Pump Discharge\" pump.\no\tJockey pump to replace cross over pipeline for pressure compensation. Installation to be carried out by the selected contractor.\n3.\tElectrical Supply:\no\tA new 415V 3-phase supply is required.\no\tOne of:\n\uf0a7\t 4-core  Conforming to LPC Technical Bulletins 210 and 236 (TB210 and TB236), , or\n\uf0a7\t3-core  with bare copper earth, Conforming to LPC Technical Bulletins 210 and 236 (TB210 and TB236),\nfrom an appropriate designated distribution board. Location to be determined by contractor.\no\tA lockable isolator must be installed near the jockey pump on a suitable stand. The appropriate loading and size of the jockey pump motor to be designed, selected, procured, installed and commissioned by the contractor. \n4.\tPump Specification:\no\tThe motor nameplate details must be provided to the E\u0026I technician.\no\tFinal pump sizing is to be determined by the selected contractor.",
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