Submarine power cable qualified to record depth

July 22, 2019 //By Nick Flaherty
Nexans has qualified its 420 kV XLPE submarine power cable design for use in record water depths of 550m.
Nexans has qualified its 420 kV XLPE submarine power cable design for use in record water depths of 550m.

The submarine power cable opens up new possibilities to create higher voltage subsea links in deeper locations than ever before.

The cable type-testing, carried out by Nexans Norway, is a key pat of a project to create a subsea power interconnector crossing Fensfjorden, a fjord close to Bergen in Norway, which is approximately 8 km wide and 526 meters at its deepest point.

The Fensfjorden project by BKK Nett, one of Norway’s largest power companies, includes a new 420 kV connection between Modalen-Mongstad that will ensure a stable and reliable power supply to over 420,000 residents, businesses and industry facilities throughout the region.

“We have every reason to be proud of what we have accomplished. We have pushed the technological boundaries and our own previous world records,” said Ivar Rolfstad, Nexans Project Manager.

This new world record for a submarine power cable follows a previous record, also set by Nexans, with a 20 km 420 kV XLPE cable installed in 390 meters of water in the fjord of Hjeltefjorden, Norway.

Nexans has developed and produced the Fensfjorden cable at its plant in Halden. It will be installed on teh seabed by Nexans’ own cable-laying vessel, C/S Nexans Skagerrak, later this year.

www.nexans.com

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