To prevent leakage of power, all conductors have to be insulated from the metal parts of the ship, and this insulation is provided by layers of non-conductive material between the current-carrying conductor and the protective watertight cover of the cable .
Ukunqanda ukuvuza kombane, zonke izinikezeli kumele zigqunywe ngerabha kwezintawo zentsimbi enqanaweni, kwaye le rabha iba yimigangatho enganikezeli mbane phakahti kweisinikezeli kunye nendawo engangeni manzi egqume ikheyibhuli.