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Basic wiring inquiry

Posted: Wed Feb 06, 2019 9:43 pm
by da324
Hi all,
I'm wiring a shed and I have enough wire to come in one side of the shed and go all the way around close to where I came in and terminating at the light switch. My question is, can I branch off the home run wire coming into the shed and go one way to the outlets and a short run the opposite direction to the light switch? This would save me a bunch of wire and roughing in. Thanks for any advise.

Re: Basic wiring inquiry

Posted: Thu Feb 07, 2019 7:31 am
by Shannon
Yes for sure. Easiest is likely to come in either to the switch or first receptacle first and then split off from there. You will want to use a 3x2x3 box to accommodate all the wires at that location

Re: Basic wiring inquiry

Posted: Thu Feb 07, 2019 10:54 am
by da324
Shannon,
Thanks for the reply. The most convenient place to branch off is between the first outlet and the light switch. If I went to the outlet or switch first, I'd have to backtrack to get power in the other direction. I was going to use a junction box where the home run comes into the shed and just take off in two different directions. Is that method still safe or do I have to work off of an outlet or switch first? If so, how is that different from branching off where the power comes in? Thanks for you help and videos, Keep up the great work!

Re: Basic wiring inquiry

Posted: Thu Feb 07, 2019 12:06 pm
by emtnut
da324 wrote:
Thu Feb 07, 2019 10:54 am
Shannon,
Thanks for the reply. The most convenient place to branch off is between the first outlet and the light switch. If I went to the outlet or switch first, I'd have to backtrack to get power in the other direction. I was going to use a junction box where the home run comes into the shed and just take off in two different directions. Is that method still safe or do I have to work off of an outlet or switch first? If so, how is that different from branching off where the power comes in? Thanks for you help and videos, Keep up the great work!
You can kill 2 birds with one stone then !

You require a 'disconnect' for the branch circuit. So, wire a switchbox where the cable enters and label that POWER.
Then branch off to the light switch and receptacles from there.

Re: Basic wiring inquiry

Posted: Thu Feb 07, 2019 10:08 pm
by Shannon
Why the disconnect for a shed? I have never heard of that?

Re: Basic wiring inquiry

Posted: Thu Feb 07, 2019 11:35 pm
by Aaron
All outbuildings (shed or detached garages) need a disconnect means at the building itself. I know here in St. Paul the light switch is fine.

Think of it like wiring the light switch at a furnace.

Re: Basic wiring inquiry

Posted: Fri Feb 08, 2019 10:41 am
by emtnut
Shannon wrote:
Thu Feb 07, 2019 10:08 pm
Why the disconnect for a shed? I have never heard of that?
Because you don't need it where you are !! :mrgreen:

The disconnect is required under NEC. Ontario code (Ontario amendments to CEC) also require a disconnect.

CEC does not.

... For the OP, it's handy to have and helps with his wiring anyways, whether it's required for his area or not.

Nice to see code that is consistent eh !! :roll: :lol:

Re: Basic wiring inquiry

Posted: Fri Feb 08, 2019 9:48 pm
by Shannon
I see, ya we definitely don’t have that here in Saskatchewan

Re: Basic wiring inquiry

Posted: Sat Feb 09, 2019 12:08 am
by Aaron
Pain in the butt when a state/province/city decides to impose additional codes on top of national codes!

Just gotta check with your city/town or whatever and make sure whether they are "special" or not. lol