Cable repairs during swells
Although it is buried one metre deep in the sea floor, the cable can be damaged by ship anchors. When this happens, tests are conducted from the shore in order to accurately locate the failure. A repair ship heads out, lifts the cable from the sea floor and disconnects it at the point of damage.
Both cable ends are reconnected by means of an inserted cable section and junction boxes and lowered onto the sea floor. Finally, a series of tests is carried out to ensure that the repaired cable is functioning properly.
Supply, maintenance and emergency shelter: the substation platform
Repair and maintenance works on the platform are easier - provided than the platform can be reached. Huge seas and storm can make landing by ship or helicopter impossible. Platforms located far from the coast are usually reached by helicopter if they are equipped with a landing pad.
In the event that the team is stuck on the platform after the maintenance works, there are sufficient sleeping quarters and food available. Bigger wind farms can even support a permanent service team on the platform.