This part (part 13) of the HD details the particular specifications for oil resistant polyvinyl chloride insulated and sheathed flexible cables, of rated voltage (Uo/ U) up to and including 300/ 500 V, for a maximum conductor temperature in normal operation of 70ø C. All cables shall comply with the appropriate requirements given in Part 1 and the individual types of cable shall comply with the particular requirements of this Part. NOTE: The limits for the overall diameter of the cables have been calculated in accordance with EN 60719.