What is the IEC 60445 color code and identification?

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IEC 60204-1 Identi fication by colour

Where colour-coding is used for identi fication of conductors (other than the protective
conductor (see 1 3. 2.2) and the neutral conductor (see 1 3.2.3)), the fol lowing colours may be
used:
BLACK, BROWN, RED, ORANGE, YELLOW, GREEN, BLUE (including LIGHT BLUE),
VIOLET, GREY, WHITE, PINK, TURQUOISE.
NOTE Th i s l i st of colou rs i s derived from IEC 60757.
I t is recommended that, where colour is used for identi fication, the colour be used throughout
the length of the conductor ei ther by the colour of the insulation or by colour markers at
regular intervals and at the ends or accessible location.
For safety reasons, the colour GREEN or the colour YELLOW should not be used where there
is a possibi l i ty of confusion wi th the bicolour combination GREEN-AND-YELLOW (see 1 3.2.2).
Colour identi fication using combinations of those colours l isted above may be used provided
there can be no confusion and that GREEN or YELLOW is not used except in the bicolour
combination GREEN-AND-YELLOW.
Where colour-coding is used for identi fication of conductors, i t is recommended that they be
colour-coded as fol lows:
– BLACK: AC and DC power ci rcui ts;
– RED: AC control ci rcui ts;
– BLUE: DC control ci rcui ts;
– ORANGE: excepted ci rcui ts in accordance wi th 5. 3.5.
Exceptions to the above are permi tted where insulation is not avai lable in the colours
recommended (for example in mul ticonductor cables).



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