CABLING & CABLE MANAGEMENT FEATURE
MAKING A DIFFERENCE around the world
From Brazilian wind farms to power supply networks in the fjords of Norway, Nexans’ cabling solutions are making a difference across the globe in a wide variety of applications
N
orway’s power supply network will get a crucial boost in reliability
and capacity with the installation of Nexans’ submarine cables as part of a major new connection for the utility BKK Nett AS. The new 420kV connection between Mongstad and Kollsnes will cross two fjords - Hjeltefjorden and Lurefjorden - requiring Nexans to install the world’s longest and deepest deployment of XLPE (cross- linked polyethylene) insulated submarine cables in a contract worth around €78m. BKK Nett AS, one of
Norway’s largest utility companies, is building the new connection to reinforce the power grid in the west of the country. The new power line is essential to ensure security of supply for the forecast growth in consumption by residents, businesses and industrial consumers in the Bergen region, which is an important growth area. It will also provide additional capacity for the grid connection of new generation resources. The total length of the new 420kV
Mongstad to Kollsnes connection will be around 30km. On land, overhead lines will carry the power. However, the majority of the route crosses two fjords, requiring the installation of submarine cables. For BKK, Nexans is providing a turnkey
service for the design, manufacture, supply and installation of a total of 90km of single-core XLPE cable. The design is based on the same technology used in Statnett’s successful Ormen Lange project, commissioned in 2006,
then the world’s first 420kV XLPE submarine cable installation. The submarine cables will be installed
in the fjords in three parallel lengths to create a 3-phase AC connection, rated at 420kV. The cables will be protected by outer shells or water jetting from shore to 30m water depth. The Lurefjorden installation will have a length of ten kilometres per phase and a maximum water depth of 200m, while the Hjeltefjorden section will set a new world record for 420kV XLPE cable covering both length - 20km per phase - and depth - a maximum 390m. “This major project for BKK reinforces Nexans’ position in Norway as a key supplier of cable infrastructure projects with over 100 years of experience on the country’s coast, islands and fjords”, said
Kjetil Hovland, vice president Submarine High Voltage at Nexans.
“It also confirms Nexans as a world
leader in 420kV XLPE submarine cables with proven capability to
deliver complete turnkey systems.”
The submarine cable will be
manufactured at Nexans’ specialised facility in Halden, Norway, for delivery and installation between 2016/17.
MEANWHILE ACROSS THE POND... Nexans is also helping Suzlon achieve effective and reliable connections for around 150 wind turbine generators installed in major wind farm projects across Brazil. Suzlon, one of the world’s leading wind turbine manufacturers, has turned to
/ ELECTRICALENGINEERING
Nexans is helping Suzlon achieve connections for around 150 wind farm projects in Brazil
Nexans to support its major projects in Brazil with complete end to end cable solutions that will ensure effective, efficient and reliable connections for some 150 wind turbine generators (WTGs). The total contract value is worth around €11m. In two framework agreements with
Suzlon, Nexans is supplying its WINDLINK LV and MV tower cables, site kits and accessories together with MV inter-array cables and HV export cables that form the connection to local substations. This enables Suzlon to benefit from advanced, fully integrated, end to end cable solutions that cover not only the products, but also comprehensive technical and logistical support. While the wind farm projects are
located across Brazil, Nexans is delivering the cables to Suzlon production sites around the world including Vietnam, Indonesia and South Korea. Hemant Prabhakar, Nexans’ group key account manager for Suzlon, commented, “Our high level of involvement with Suzlon is a perfect illustration of how Nexans continues to extend its service well beyond simply supplying cables to supporting wind industry customers with complete solutions, technical documentation, logistics and site supervision.”
Nexans
www.nexans.co.uk T: 01908 250 848
Enter 227 ELECTRICAL ENGINEERING | APRIL 2014 39
Nexans is playing a key role in the world's longest and deepest deployment of XLPE (cross-linked polyethylene) insulated submarine cables
As well as providing cable solutions for wind farm projects in Brazil, Nexans is also delivering to Suzlon production sites around the world including Vietnam, Indonesia and South Korea
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