VVB CTRL contract 220 overview

Contract Value £5.7m
VVB CTRL contract 220
Contract 220 of the Channel Tunnel Rail Link (CTRL) has involved the construction of two 7.35 metre I.D rail tunnels between Stratford London and Kings Cross, in a joint venture with Nishimatsu, Cementation and Skanska (NCSJV).

After being part of the bid team VVB were appointed by NCSJV on a target cost basis to project manage the electrical requirements of the job, from fi rst plans through to the handover to the M&E contractors.

VVB’s Role included:

  • Being responsible for electrical safety on the project.
  • Providing the Senior Authorised, Authorised and Competent Persons for the project.
  • Being responsible for the implementation of the HV safety rules and documentation, including the issue of HV safety documents such as Switching Schedules, Permits To Work, Sanctions For Test and Limitations Of Access.
  • Liaison with the management team on the day-to-day running and forward planning of the project.
  • Design, installation, commissioning, maintenance, testing, fault finding and repair of the temporary 11kV and 415 volt sub-stations and electrical distribution schemes.
  • Design, installation, commissioning, maintenance, testing, fault finding and repair of the telephone, radio, CCTV (via leaky feeder), and environmental monitoring systems.
  • Building, commissioning and running the two PLC controlled, 11kV supplied 7.35 metre ID Tunnel Boring Machines (TBM’s).
  • Installation and maintenance tunnel lighting schemes, including emergency lighting.
  • Installing and maintaining all surface and underground plant, including, 15kM of remote scada controlled conveyors, gantry cranes and pumping systems.
  • Looking after the project offi ces, stores canteens etc.
  • Implementing and carrying out plant maintenance schemes in line with manufacturers and legislative (16th Edition etc) requirements.
  • Ensuring the JV complied electrically with the clients quality plan.

Client has resulted in minimum disruption to the project, and considerably assisted in the project being delivered within budget.

VVB have been part of the senior management team for the duration of the project and with our diligent proven approach have now been asked by the project director to undertake the management of the whole of the four 200 series contracts (C220, C230, C240 and C250) through to completion of the next phase of the contract.