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    wwwaskm's Avatar
    wwwaskm Posts: 36, Reputation: 1
    Junior Member
     
    #1

    Sep 4, 2008, 10:28 AM
    Simple Electrical Wiring for Bathroom (2 switches,2 gfi's)
    Hi All,

    I have a 20 amp breaker in my Bathroom Sub-Panel. On this run I would like to hook up 2 gfi's a switch for the fart fan and a switch for the vanity lights (4 total). My question is how do I wire it.

    I was thinking from the 20 amp to the first switch (fart fan) connected to the line side and then out of the load side to my GFI (in on the line side out on the load side) then onto my 2nd GFI (in on line out on load side) then to my switch for the vanity light (in on the line side) Is that the correct circuit layout? How would you wire it?

    If this isn't right could you please explain why. Hope it makes sense. Please ask if you have questions.

    Thank you
    Tev's Avatar
    Tev Posts: 232, Reputation: 20
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    #2

    Sep 4, 2008, 01:29 PM
    I would not protect my lights with the gfci receptacle, if something happens to trip it then the lights would go out increasing any danger.

    My suggestion is put both switches in the same box. Run romex from there, 1 out to the fan, 1 to the lights and 1 to first GFCI. From that first GFCI run romex to the second receptacle which will not have to be a GFCI if it's fed from the load side of the first one. Run romex from the panel to the switch box to bring power to the bathroom. Keep in mind that nothing outside of that room will be allowed on that circuit.

    Use 12/2 romex for all of this.

    Are you aware of the codes governing placement of things in the bathroom?
    wwwaskm's Avatar
    wwwaskm Posts: 36, Reputation: 1
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    #3

    Sep 4, 2008, 02:42 PM
    Thanks for your answer, I included a crude drawing to help explain. I'm not concerned with the lights tripping because this is the 3rd pair of lights in the bathroom. I've already wired one 12/2 run to the fan switch, from there to the gfi and vanity switch box, from that box it will power the vanity light and the normal plug down from the GFI. I could rewire if you deem it necessary, but it's a real pain to get back there. Also, I think the only code here would be how high up to place the GFI and the switch box, and the normal plug down from the GFI.

    Thanks
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    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
     
    #4

    Sep 4, 2008, 02:53 PM
    Where do you live and why is there a sub panel in a bathroom?
    wwwaskm's Avatar
    wwwaskm Posts: 36, Reputation: 1
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    #5

    Sep 4, 2008, 04:34 PM
    The sub is outside the bathroom door, not in the bathroom, I live in northern California.
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
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    #6

    Sep 4, 2008, 04:49 PM
    ..
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    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
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    #7

    Sep 4, 2008, 05:22 PM
    Thanks for clarifying, inside a bathroom would not be allowed.
    wwwaskm's Avatar
    wwwaskm Posts: 36, Reputation: 1
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    #8

    Sep 4, 2008, 05:50 PM
    Harold,

    THANKS! That is awesome. Now that I can understand. The only question I have: The top of the last GFCI in the diagram is that the load side or the line. I'm assuming that on all switches and GFCI's in the diagram, the lower part is the line side and the upper terminals are the load side. THANKS SO MUCH AGAIN.
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
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    #9

    Sep 4, 2008, 06:20 PM
    Switches have no line or load. The switch doesn't care which way the current goes through.
    I believe the top screws of the GFI are the line, but check. They are marked. The bottom would be the protected load screws. I believe the center terminals are the unprotected load. The unprotected terminals are covered by a strip of tape with a warning that they are not GFI protected. Wiring from the protected load terminal to another regular outlet protects that outlet, it is not a GFI outlet, just regular outlet but GFI protected by the first GFI.

    Side note. With most GFI's the wire is not wrapped under the screw head. There is a pressure tab or bar, you simply put the bare wire under the tab and tighten screw. Make sure that you strip enough insulation so that the tab clamps down on the bare wire and not the insulation.

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