We performed the repair with support from our marine, engineering and service departments. The state of the art and purpose built cable laying vessel NKT Victoria was used for the operation.
Thorough preparations, involving close cooperation between the customer and the technical, marine and operation experts, were crucial to ensure a successful operation. A detailed repair plan was set up including marine survey and QHSE (quality, health, safety and environment) documentation. NKT engineering department performed cable and joint analyses in order to maintain cable integrity during the repair operation and ensure a safe and efficient operation.
The spare cable was loaded onboard NKT Victoria in Drammen Norway and the vessel set course to the fault location. Well on site, the repair operation commenced without any delay. During the repair the weather conditions got worse, but NKT Victoria managed to keep positions with help of its powerful DP3 (dynamic positioning) system. The highprecision jointing operation was time optimized with the support of the marine advisory system and the cable system was laid in the planned position with the highest accuracy.
NKT finished the turnkey repair project within the planed time schedule. When handling all from planning to execution during a turnkey repair operation, NKT can ensure maximum efficiency, smooth interfaces and lower risk. The repaired Skagerrak 2 cable link was back in operation on November 3rd 2017 – securing the international transmission of green power.