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    pat_allan's Avatar
    pat_allan Posts: 1, Reputation: 1
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    #1

    Jun 30, 2008, 06:22 AM
    Switch wiring for 20 amp curcuits.
    My electrical inspector told me all wiring on 20 amp circuits must be 12 wire. Is this true for wiring to lights from that circuits?
    Washington1's Avatar
    Washington1 Posts: 798, Reputation: 36
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    #2

    Jun 30, 2008, 06:55 AM
    Yes!

    Yet, I wouldn't say "all" wiring has to be 12 wire if served from a 20A OCPD. But, this is another topic.
    donf's Avatar
    donf Posts: 5,679, Reputation: 582
    Printers & Electronics Expert
    		  
    #3

    Jun 30, 2008, 06:57 AM
    Yes, #12 AWG is rated at 20 amps. There are occasions where because of distance problems you would have have to step up in wire size to compensate for the distance.

    However, most general lighting circuits are wired with #14 gauge and are protected by a 15 amp breaker. #14 AWG is rated for 15 amps.
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