Submarine link powers up Long Island
A
Nexans product story
Edited by the Engineeringtalk editorial team
Sep 5, 2006
Nexans has been awarded a contract worth over Eur 73 million to design, manufacture, deliver and install a 138kV high voltage submarine transmission link in the USA.
Nexans has been awarded a contract worth over Eur 73 million to design, manufacture, deliver and install a 138kV high voltage submarine transmission link between Norwalk (Connecticut) and Northport on Long Island (New York) in the USA.
This transmission link, called the Long Island Replacement Cable (LIRC) project, was commissioned by the Northeast Utilities Service Company (NUSCO) on behalf of Long Island Power Authority and Connecticut Light and Power.
"This project bears out the excellent performance of the North American energy market which Nexans already largely takes advantage from".
"Moreover, this contract confirms the leading position of the Group in the high voltage submarine power cables market in North America", says Frederic Vincent, Chief Operating Officer and Executive Vice-President North America Area.
For this project, Nexans will supply almost 60km of 138kV three-core high voltage AC, crosslinked polyethylene insulated (XLPE) power cables for three circuits in total.
Each 19km length per circuit will also include a 24 fibre optic element.
These cables are expected to be the largest and heaviest ever manufactured at this voltage level by Nexans.
The cables will weigh more than 100kg per metre with an outer diameter of 235mm.
Designed to improve the region's power infrastructure, the three new cables will replace seven existing 30 year-old transmission cables and are capable of 150MW per circuit.
Power cables will be manufactured at Nexans' Halden plant in Norway.
After the initial removal of the seven existing cables at the end of 2007, the new XLPE cable will be transported to the site by the Nexans cable laying vessel C/S Skagerrak.
The cables will be laid in the existing cable transmission corridor in water depths of up to 70 metres and, using water-jet technology, buried beneath the sea bed in order to avoid potential damage to the cables.
The installation work should be completed by the end of 2008.
"The design, manufacture and installation of these XLPE submarine cables represents a challenging project well suited to Nexans".
"It will involve the latest cable design technology, environmentally-friendly XLPE insulation and installation techniques which Nexans' Norwegian operations, located in Halden, are renowned for in the industry"., says Patrick Barth, Managing Director of Nexans' High Voltage activity.
He continued: "Nexans is very proud to be selected by Northeast Utilities and its partners, Long Island Power Authority and Connecticut Light and Power, for this project".
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