Labelling mixed­gauge circuit


Old 04-13-05, 02:28 PM
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Labelling mixed­gauge circuit

Is there a standard/common way to label a wire in the panel to indicate that its circuit has smaller cable somewhere in the circuit.

I'm asking since I occasionally do partial rewiring, and I'm considering using 12-gauge for all 15a circuits on parts that I add or replace in the future. I'd like to avoid the potential consequence of accidently overloading underrated wiring.

And for those who are going to say change the whole circuit everytime, that's rarely going to happen here. I'd just like to mitigate future accidents as practically as possible.

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Old 04-13-05, 02:41 PM
Speedy Petey's Avatar
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If you are continuing or adding to a 15 amp circuit why in the world would you use #12? There would be no way to overload it if it is on the proper 15 amp breaker.
Except for voltage drop over long distances there is absolutely no reason to use #12 on a 15 amp breaker. It is NO safer than #14.

For labeling I would just use a flag of white electrical tape labeled with a Sharpie.
Old 04-13-05, 06:17 PM
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A label would only be necessary, even though it's not required, when the larger gauge wire is at the panelboard.

In that case, I like Speedy's white flag approach, affixed to the conductor near the connection to the breaker.

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