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Wire color

U-Lhan

Mar 11, 2017
9
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Mar 11, 2017
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What is the standard color of wire must be used (based on their applications) in designing an electronic project?
Red for positive, Black for negative, what else? Thankyou .
Btw. Electronicspoint helps me a lot. :) more power!
 

Alec_t

Jul 7, 2015
3,187
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Jul 7, 2015
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3,187
AC mains wires are colour-coded too, but the code varies from one country to another.
 

Minder

Apr 24, 2015
3,239
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Apr 24, 2015
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3,239
For general electronic circuitry there is no set colour.
For control wiring in N.A. the colours are spelt out in NFPA79.
M.
 

OBW0549

Jul 5, 2016
157
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Jul 5, 2016
Messages
157
For mains wiring there are mandatory colors; for your own low-voltage wiring on a project, there are no requirements. I usually (but not always) use the following scheme:

Positive supply voltage (e.g., +5V, +3.3V, +12V, etc.): Red
Ground: Black
Negative supply voltage: Blue
Digital logic signals: White
Analog signals: Yellow
Special signals I want to quickly locate: some other color like purple, orange, grey, etc.
 

Arouse1973

Adam
Dec 18, 2013
5,177
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Dec 18, 2013
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5,177
You would be better off measuring the voltages rather than assuming a colour preference. In the security industry for vehicle wiring we use black so no one can tell which is which :)
Adam
 
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