Basic and safety principles for man-machine interface@ marking and identification – Identification of equipment terminals and conductor terminations (Edition 4.0)
This International Standard applies to the identification and marking of terminals of electrical equipment such as resistors@ fuses@ relays@ contactors@ transformers@ rotating machines and@ wherever applicable@ to combinations of such equipment (e.g. assemblies). It also applies to the identification of terminations of certain designated conductors. This standard further includes general rules for an alphanumeric system.