Prysmian – Saint Nazire OWF; Stage 1 September 2021 to January 2022 – 220kV Export Cable Pull-in, Termination and Testing (2 x Export Cables) Stage 2 May 2022 to October 2022 – Termination and Testing – 33kV inter array cables

Correll Group were delighted when Prysmian awarded our organisation the Cable Pull-in and testing and terminations of the Inter Array Cables, to the WTG/OSS termination point on the Saint Nazaire wind farm project.

The Saint Nazaire Windfarm project will comprise of 80 Wind Turbine Generators (WTG) 6 MW each and 1 Offshore Substation providing a total capacity of up to 480MW. Scope of work includes:

Correll Cable Installation & Power Services Division (CIPS)

• Pre-project meetings
• Creation of RAMS
• Post Lay Testing (continuity, insulation resistance, Time Domain Reflectometry and Optical Time Domain Reflectometry).

On the offshore assets:

• Cable pull of 2 x export cables.
• • Stripping the export cables to expose the HV cores and FO cable
  • Complete the permanent hang-off
  • Route the HV and FO cable into GIS and Fibre Enclosure
  • Cleat the HV cores from the hang-off to the GIS
  • Terminate and splice the FO cable into the cabinet
  • Terminate three power cores into the GIS
  • Complete post installation testing from the onshore substation to the offshore assets (IR, TDR & OTDR)
  • Deliver an Inspection and Test Plan for the installed and tested system, forming part of key payment milestone.

Correll Electrical Engineering (CEE)

• Planning assistance & coordination of the works
• Arranging accommodation for the termination & test teams
• De-armouring of the inter array cable which includes removing outer yarns / outer sheath, armouring, fillers and untwist power cores and FO cable
• Installation of the permanent hang-off (from temporary to permanent) of the inter array cables
• Install and connect the earthing cable from hang-off towards the earthing point
• Routing and fixation of the HV power cores, FO cables and earth cables on the
• cable ladders of the OSS / TP / WTG
• Installation/termination of all required accessories for the completion of the FO Cable. Splice box. Splicing, installation of pigtails and earthing of the tube included
• Supply of tools, test equipment, consumables, and PPE to perform the termination & test works inside the OSS / TP / WTG
• Removal of the cable support frame and debris
• Installation of the surge arrestors at the cable bays of the 33kV switchgear on the OSS
• IAC & OSS HV & FO Cables – perform ‘Site Acceptance Testing Pre-Termination’
• IAC & OSS HV & FO Cables – perform ‘Site Acceptance Testing Post-Termination’.

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