Denmark Interconnector cable laying

The ‘Viking Link‘ project made it possible to share clean electricity between the British and Danish electricity grids. An HVDC Interconnector has been laid for this, which bridges a record distance: 765 km.

On the beach of the Danish town of Henne Strand, we were used to get the cable of the interconnector in place. This area was too deep for normal cranes and too shallow for the ships.

By means of trenching it was possible to bring the cable of the interconnector down to the bottom by your own weight. Two amphibious excavators were used to achieve this, one of which supported the other. A combination that is not common, but therefore makes this project so memorable.

Our WK220 NG-5 was equipped with a DOP 200 with Jet head. These were powered, among other things, for the Jet pump carried by our WK95 NG-A. The combination was working in areas where wave action was up to 0.5m high. Furthermore, in preparation for this project, our amphibious Waterking excavators had been prepared with a special coating to withstand the sea salt well.

Thanks to this innovative combination of machines, we managed to place the interconnector in the desired location of the Viking Link project.