The cable system consists of a mechanically strong and hermetically sealed mass-impregnated, non-draining paper-insulated HVDC cable with a 2100 mm² copper conductor. It also includes two MCR (metallic current return) cables giving a sufficient conductor area for the return current.
The cable system was completed in less than 15 months at our state-of-the-art factory in Karlskrona, Sweden, which is specially designed for production of long submarine cables. The cable system was then loaded directly onboard the laying ship at the factory’s deep-sea port.
For the landing of the cable in Poland, we passed the very sensitive shore environment consisting of high sand dunes by means of 500 meters horizontal directional drilling (HDD) under the dunes and out in the sea in order not to disturb the natural sand dunes.
At NKT, we are proud of contributing to the efficient power exchange system in Europe. It is also great that our cable system in the SwePol Link can be effectively used for the green and clean electricity that is expected from several upcoming Polish offshore wind farm projects.