What sort of cable will be used?
Crest will use cables similar to those running under the Cook Straight, which were installed in the early 1960’s to bring hydro power from the South Island to the North. The bipole HVDC cables are waterproof, salt corrosion resistant, solid plastic polymer, insulated copper with high mechanical strength. The cables are about 125 millimetres in diameter and buried over one metre under the harbour floor. Crest does not believe that buried DC cables will have any impact on marine navigation equipment.
