"This International Standard specifies the dimensions@ test methods@ and requirements for single core 60 V cables intended for use in road vehicle applications where the nominal system voltage is ??(60 V DC or 25 V AC). It also specifies additional test methods and/or requirements for 600 V cables intended for use in road vehicle applications where the nominal system voltage is > (60 V DC or 25 V AC) to ??(600 V DC or 600 V AC). It also applies to individual cores in multi-core cables. See ISO 6722 for ""Temperature Class Ratings""."