Nexans, which is headquartered in France and engaged in the cable industry, has received a 220 million euro contract to design, manufacture and install a 335-kilometer subsea high-voltage direct current (HVDC) connecting Crete and mainland Greece ) Cable system.

The contract is part of Nixon's existing order for a 1.6 billion euro submarine cable project. In addition to providing a safe power source, the project can also increase the capacity of wind and solar energy.

Crete has a population of about 700,000 and is the largest island in Greece. It attracts more than four million tourists every year, especially in summer. The high-voltage DC transmission cable system is expected to reduce emissions, making the island a more attractive destination for tourists.

Nexans will provide a 500 megawatt (MW) high-voltage DC submarine cable system that will form half of the total 1,000 megawatt bipolar interconnection in a 35-month project. The high-voltage DC cables will be produced at the factory in Halden, Norway and / or the Fujitsu factory in Japan.

Nexans ’own dedicated cable ship – Nexans Skagerrak or the new Nexans Aurora will install cables. The rated capacity of Nexans cable is 500,000 volts, based on its quality impregnated non-drained (MIND) design for HVDC cable systems, and will integrate fiber optic components for sensor applications.

The near-shore part of the cable will be installed at a water depth of 100m, and its aluminum conductor core with a cross section of 1800mm². The deeper part of the cable is installed at a depth of 1200m and its cross-section is 1500mm² aluminum conductor.

The cable will be protected by trenching the seabed 600 meters deep using the Nexans Capjet water jet system. The interconnect line is planned to be put into operation in 2023. Editor / Huang Lijun