This standard provides rules and guidelines for the labelling of cables and cores/conductors used in industrial installations@ equipment and products@ in order to maintain a clear relation between the technical documentation and the actual equipment and for other purposes. The following methods are described and designated: ?use of coloured cables and designated cores; ?additional identification labelling; ?additional connection labelling; and ?additional signal labelling. The physical design of the labels@ the material to be used for the labels as well as cable manufacturers' product bound marking of cables and cores are not part of this standard.