Quote:
Originally Posted by BitTwiddler
I'm wondering if the color code is legal with respect to rule 46:
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It is legal, the rule states (emphasis mine):
Quote:
All active circuit wiring with a constant polarity (i.e., except for outputs of relay modules, speed controllers, or
sensor outputs) shall be color-coded as follows:
A. Use red, white, brown, or black with stripe wire on the +24 Vdc, +12 Vdc and +5 Vdc connections.
B. Use black or blue wire for the common or negative side of the (-) connections.
[R46]
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Basically, the rule applies to wires that are sending electrical current (not my field of expertise, so that's probably a terrible, simple way to describe it) and PWM's are SPECIFICALLY exempt from the rule/their color is not enforced.