German cable manufacturer Nexans will supply and install the inter-array cables and associated accessories for Borssele 1 + 2. Nexans was awarded the contract by Ørsted. It is the first under a new five-year multimillion-euro framework agreement recently signed by the two companies.
It concerns three-phase 66 kV copper cables with two cross-sections, rated at a maximum operating voltage of 72.5 kV. The inter-array cables, with a total length of between 170 km and 190 km, will connect the turbines and the substation, located around 23 km off the Dutch coast. In addition to the inter-array cables, Nexans is also providing the relevant fittings and accessories for the project, including T-connectors for the 66 kV cables designed for wind farm application with a standardised, robust and easy plug and screw solution.
Vincent Dessale, Nexans’senior executive vice president subsea and land systems business group: “The Borssele wind farms will be the first time that Ørsted has used Nexans new 66 kV cables for its offshore wind farms. Operating at this increased voltage will result in lower losses than using array cabling at the normal 33 kV and 36 kV voltage level. Nexans is proud to be the world’s only supplier that is currently able to equip this new generation of wind parks with a complete in-house portfolio of state-of-the-art cables and standardised connection solutions suitable for a maximum operating voltage of 72.5 kV.”
The inter-array cables will be produced at the Nexans Germany plant in Hanover and are planned for delivery in 2019. After installation, Nexans Subsea and Land Systems will complete the connection to the turbine bases using in-house jointing expertise. The cable accessories will be supplied by Nexans Euromold facility based in Erembodegem, Belgium.