National Identification Standards For Wiring Terminals And Copper Nose

Topic Content and Scope of Application
 
This standard specifies various methods for identifying electrical equipment (hereinafter referred to as equipment) Cable Lugs, and establishes general rules for identifying equipment wiring terminals and specific wire ends using an alphanumeric system.
 
This standard applies to the identification marking of wiring terminals for equipment (such as resistors, fuses, relays, contactors, transformers, rotating motors, etc.) and their combinations, as well as to the identification of specific wire ends.
 
When necessary, detailed applications of these general rules for certain products and necessary auxiliary identification methods can be provided in relevant standards.
2. Reference standards
 
GB 4728 Graphic Symbols for Electrical Diagrams
 
GB5465 Graphic Symbols for Electrical Equipment
3 Identification Methods
 
One or more of the following methods can be used to identify device wiring terminals and specific wire ends.
 
3.1 Use the marking system of relevant products to determine and identify the actual or relative position of equipment wiring terminals or specific wire ends.
 
3.2 Use the labeling system of relevant products to determine and identify the color markings of equipment wiring terminals and specific wire ends.
 
3.3 Use the graphic symbols specified in GB5465. If auxiliary symbols are required, they should be consistent with the graphics in GB4728.
 
3.4 Use the alphanumeric symbols specified in Chapter 5 of this standard.