Pull-in of the export Cable to the World's largest Wind Farm:

Page updated 2009/07/13

Date: February 2009

Project: Horns Rev 2.

Clients: Nexans Norway

The Horns Rev 2 transmission cable was installed between Henne Strand and the Trafo-platform at Horns Rev 2 by Nexans Norway using the support vessel Team Oman in October 2008. However, the intended procedure of floating the cable from Team Oman approx. 2000 meters from shore to the beach was aborted due to the weather conditions in the North Sea in October. Instead Team Oman was used to install the cable from the trafo-platform and up to approx. 3000 metres from the shoreline. Here the cable was laid in a u-turn and paralleled back towards the trafo-platform.

JD-Contractor A/S has the necessary equipment and expertise, so Nexans Norway asked JD-Contractor A/S to make the post-installation pull-in at Henne Strand with the Cable Barge Henry P. Lading, M/S Cable One and other support vessels. Since C/B Henry P. Lading has a draft of less than 3 metres, it was able to reach closer to shore, thus performing a much shorter pull-in.

As the possibility of a long period with calm weather was more likely in January and February than in the autumn, the installation was scheduled for the first week of February. In the evening of the 3rd February all preparations had been carried out, and C/B Henry P. Lading was positioned over the cable by the assisting tugs, so that the recovery could be commenced. Work continued through the night and in the early hours of the morning the laying of the cable in the planned corridor was carried out with divers ensuring the cable was layed at the correct tension and in a straight line. The work was carried out without problems so already in the evening of the 4th February, C/B Henry P. Lading and the tugs were able to demobilise from site after a successful installation.

The following units participated in the work:

· Installation barge: C/B Henry P. Lading
· Assisting Tug: T/B Naja
· Dive support & survey: M/S Cable One
· Dive support & Workboat: M/V Buizerd

See video from the pull-in

Ingeniørens webpage

CLICK HERE

Related link: Embedding 42 km Export Cable between Henne Strand and Horns Rev 2