1 Scope
This standard provides general rules for the use of certain colors or alphanumerics to identify conductors with the aim of avoiding ambiguity and ensuring safe operation. These conductor colors or alphanumerics are intended to be applied in cables or cores, busbars, electrical equipment and installations. This standard was prepared in accordance and with the principles laid down in IEC Guide 104 and in ISO/IEC Guide 51.
2 Normative References
The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding any corrigendum), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For any undated references, the latest edition of the document referred to applies.
IEC Guide 104 The Preparation of Safety Publications and the Use of Basic Safety Publications and Group Safety Publications
ISO/IEC Guide 51 Safety Aspects—Guidelines for Their Inclusion in Standards
3 Identification by Colors
3.1 General
For identification of conductors, the following colors are permitted:
—black, brown, red, orange, yellow, green, blue, violet, grey, white, pink, turquoise.
Note: This list of colors is derived from GB/T 13534.
