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July/August - Installation of new transmission cable from Jutland to the island of Lęsų

As the existing transmission cable from Jutland to Læsø, which had been in operation since 1965, was heavily corroded, it was decided to replace the link with a new 72kV cable.

Date: July-August

Client: Energinet.dk

The existing transmission cable from Jutland to Læsø, which have been in operation since 1965, was found heavily corroded. As a consequence, it was decided to replace the link with a new 72kV cable.

In the summer of 2011 JD-Contractor A / S, on behalf of Energinet.dk, installed a 72 kV HVAC submarine cable link between Jutland Sæby and Læsø. The installed cables consists of a supply cable and a fibre optic communication cable. The task was install the 2 cables in the Kattegat.

JD-Contractor A / S was responsible for the overall installation, but the cable, the directional drilling at both landings and the winch and personnel ashore were delivered by the customer Energinet.dk.
JD-Contractor A/S was also contracted by Energinet.dk to embed the installed cable into the seabed.

Overall, the installation of the 72 kV HVAC sub-sea cable connections between Jutland and Læsø was carried out with satisfaction. The work progressed according to plan, and despite several changes in the project, there were no major delays in the work and the cable was installed in time.

Vessels used:

  •     C/B Henry P. Lading
  •     C/S Cable One
  •     S/B Victor
  •     M/S Vina
  •     M/S Honte
  •     T/B Naja
  •     T/B Lille Bjørn
  •     T/B Thor
  •     T/B Bauge
  •     Guardship Emil