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This page contains several questions. Be sure to scroll down to find the one you're looking for.
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What is the smallest size wire that I can re-identify with
colored electrical tape?
For grounded conductors, wire must be larger than AWG 6 [2005: 200.6]
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On a single phase 120/230 volt circuit what color should
the wire be on the ‘B’ phase?
There is no rule for color coding wires in the NEC. Even if there was, there’s
no guarantee that the previous installer followed the guidelines!
However, in a 120/240 volt application electricians
traditionally use red and black to identify the ungrounded conductors.
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Is there a Code section that prevents wiring a 120 volt load and
a 240 volt motor load (less than 1/8 hp) to the same 240 volt 2-pole circuit breaker?
The most important thing is that the 120 volt load has a neutral and ground conductor.
If you are wiring from a true 240 volt balanced load circuit (no neutral conductor, only a ground) then this would not be
permitted. I'm not aware of a specific section of the
Code that prohibits this (although it may exist), but I can tell you that any electrical inspector that saw the job would
fail it, and most reputable electricians would never install it.
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I clean and repaint machinery for a living. I’ve always painted
motors and electrical boxes gray. I was told that they are supposed to be painted Safety Blue. Is this correct?
I am not aware of any specific code that dictates colors of motors or electrical
boxes.
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Licensed electricians serving Orange
county, Sullivan county, and Ulster county in New York (845) 888-8000
_________________________________________________________________________________________________ All information contained within this site ©2004-2016, Wurtsboro Electric Service, Inc. All rights
reserved.
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