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Earthing and Bonding

A Tender Notice

Find a Tender
Framework (Works)
23.5 month
22 Feb 2022
To 13 Mar 2024 (est.)
24 Mar 2022 12:00



United Kingdom:

Geochart for 1 buyers and 0 suppliers

1 buyer


This requirement is needed to enable the successful electrification of the Core Valley Lines. E&B will play a key part in ensuring the safety of all personnel working on or near the rail, and of rail service users and customers once the line sections are energised. An effective E&B system will assist in minimising any identified Electromagnetic Compatibility (EMC) issues across an installation. Earthing and Bonding will need to be installed across the route, on all OLE assets, stations, bridges, fences and other metal assets to: - Ensure personal safety for those located on or about the railway, - Provide a safe return path for current in the event of an electrical fault, - Provide a return current path for normal load current; and - Ensure the correct operation of electrical protection systems.

Total Quantity or Scope

The purpose of this tender is to identify and appoint competent contractors to undertake works in relation to Earthing and Boding in a live/working rail environment. This work is required to provide key installations and allow access to the rail for incumbent TfW Infrastructure Delivery Partners (IDPs) to complete their works, and ensure the network is compliant to standards applicable to an electrified railway. Mini-competition will be utilised as the primary call-off process under this Framework, with a direct award allocation process reserved for urgent requirements only. Should the need arise for this work outside of CVL, the Buyer and their subsidiaries reserve the right to utilise this framework for works appropriate to the scope within this framework as long as value for money can be demonstrated. For the avoidance of doubt this may include similar works on alternative lines and locations not within the CVL. The potential work to be procured via this framework covers E&B works at various locations including: - Signalling power supplies (FSP) - Points heating - Telecoms equipment - Traction bonding - Junction lighting - OCS motorized switches - Signalling structures & trackside equipment - Stations - Depots - DNO cubicles - Bridges and other metal/steel structures - Metal/steel fencing - Arbitrary metal/steel trackside enclosures - Third party assets outside the WCB and CVL -Boundaries - Metal / Steel Handrails - IBJ’s / IRJ’s - Sidings

Renewal Options

There may be a requirement to undertake this work after the FW expires in 3 years

Award Criteria

Technical and Sustainability 55%
price 45%

CPV Codes

  • 45234000 - Construction work for railways and cable transport systems
  • 34632200 - Electrical signalling equipment for railways
  • 34632300 - Electrical installations for railways
  • 34946000 - Railway-track construction materials and supplies
  • 34946100 - Railway-track construction materials
  • 45234100 - Railway construction works
  • 45234115 - Railway signalling works
  • 50225000 - Railway-track maintenance services


  • This is a recurring contract.
  • Renewals are available.
  • Professional qualifications are sought.

Other Information

** PREVIEW NOTICE, please check Find a Tender for full details. ** TfW has appointed Amey Infrastructure Wales (AIW) as Managing Agent for works that may be sourced via the framework and are supporting TfW in developing and improving the CVL infrastructure and stations. AIW and TfW Subsidiaries may also utilise the FW for associated works to be carried out on their behalf. This FW seeks to appoint a maximum of four tenderers to undertake Earthing and Bonding Works on the Core Valley Lines and any other Wales and Borders route projects as appropriate. Tender documents will be available via EtenderWales Please refer to project_49783 and ITT_93254- Earthing and Bonding to obtain the tender documentation. Any tenderer queries and responses and any circulars that may be issued during the tender period are to be communicated exclusively via the eTenderWales portal only. All responses will be shared with all tenderers unless the query is deemed confidential or commercially sensitive. Please ensure that any enquiries/clarifications raised via eTenderWales are free of any identifiable information, such as their name or the name of their company. NOTE: The authority is using eTenderwales to carry out this procurement process. NOTE: The authority is using eTenderwales to carry out this procurement process. To obtain further information record your interest on Sell2Wales at The Contractor shall ensure that all contracts with Subcontractors and Suppliers which the Contractor intends to procure following the Award date, and which the Contractor has not, before the date of this Contract, already planned to award to a particular Subcontractor or Supplier, are advertised through the Sell2Wales portal ( and awarded following a fair, open, transparent and competitive process proportionate to the nature and value of the contract. Under the terms of this contract the successful supplier(s) will be required to deliver Community Benefits in support of the authority’s economic and social objectives. Accordingly, contract performance conditions may relate in particular to social and environmental considerations. The Community Benefits included in this contract are: Please refer to ITT tender documentation (WA Ref:118840) The buyer considers that this contract is suitable for consortia.