This standard specifies various methods for identifying the terminals of electrical equipment (hereinafter referred to as equipment), and establishes general rules for identifying equipment terminals and specific wire ends in an alphanumeric system.
This standard applies to equipment (such as resistors, fuses, relays, contactors, transformers, rotating electrical machines, etc.) and the identification marking of the terminals of the combination of these equipment, also applies to the identification of specific wire ends.
When necessary, the detailed application of these general rules to certain products and the necessary auxiliary identification methods can be given in the relevant standards.






