Relevant but didn't address the GFCI part of the question: Split a single branch circuit into two runs?
I'm wondering if I can split/tee/branch an existing circuit that uses wall mounted metal conduit. Existing wiring is:
______ ___________|(GFCI)| | |outlet| | |___B__| _________ | | Panel | _______ | | | GFCI | | 15A |--------| Outlet| |_________| |___A___|
With 'A' being a GFCI plug that feeds 'B', protecting it as well
My hope is to do this:
______ ___________|(GFCI)| | |outlet| | |___B__| _________ | | Panel | _______ ______ | | | GFCI | |(GFCI)| | 15A |--------| Outlet|--------------|outlet| |_________| |___A___| |___C__|
With 'A' connected to pigtails on the right side/downstream that connects to the existing lead 'B', and new lead 'C' using wirenuts
- Is this possible to do within code? I'm guessing my box for 'A' will be too small so I'll need to switch to a double gang just for space with all the wire. (wire in from box, grounds, pigtails to 2 out to B and C)
- Is there any issues with tee/splitting off a GFCI like this? 'B' and 'C' are essentially sharing the GFCI in 'A'
- Is this called tee-ing a circuit? I've been looking for information on it and haven't found much other than the link above. I assume its not common since it wouldn't ever happen in a new build?
Background: I've took a residential electricity class ages ago, and I'm competent enough to swap plugs and switches. If it requires adding a new circuit to the panel I'll either not do it, or hire someone. If its all downstream of the circuit then I'm confident I can wire it. I have a standard plug tester to check proper wiring and GFCI. I'm in MN in the US in a residential home built in the 70s.