This International Standard specifies test methods and requirements for basic and high performance round, unscreened 60 V and 600 V multicore sheathed cables intended for use in road vehicle applications. For the unscreened single-core cables used in the multicore cable, see ISO 6722. Other cores may be used, but with the construction and tests required to ensure functionality of these cores agreed between the customer and supplier. For temperature classes, see ISO 6722.