VK cable is a heavy-duty cable used for electrical distribution inside the boat. Compared to RNF cable, it has the advantage of a smaller diameter for the same copper cross-section. Its rigidity allows it to pass easily through sheaths.
However, it cannot be used without a sheath in an area where scraping is possible, nor in an area likely to contain hydrocarbons (engine hold) without an associated sheath. This range is available from 1 mm² to 35 mm² in red or black.