Currently working on running power from my house out to my shed. Planning on running four THWN conductors (B,W,G,R) for two 20A circuits with no subpanel, which is my understanding of the maximum of what is allowed without doing a panel (and will be plenty for me).
The electrician I was using to help me kept telling me things that didn't match the code so I've been trying to do the necessary research to complete the project by myself. I have very little electrical experience prior to this.
Here's an expertly drawn diagram of what I think I need to do:
Just in case my stellar art skills aren't enough, I'll try to explain my plan/questions:
I do know I need a disconnect in the shed. I plan to use a double pole switch right after the junction box but didn't draw it to make things a little less confusing.
Power coming into the shed via THWN conductors will transition to 12/3 cable running to a three-way switch, as well as 12/2 cable running to a single pole switch, both in the same location. Again I didn't draw the separate ground/neutrals from the JB to reduce clutter.
I understand that anything in this circuit needs to be GFCI protected so I plan on making (at least) the first receptacle in each leg GFCI. The shed is split into two parts, so essentially each side will have a total of 4 outlets, each with a 20A feed. I plan to run everything I need, including lights out of these outlets. Each separate circuit has the first GFCI feeding a regular receptacle off of its "LOAD" terminals.
My questions are: Since there is only one neutral wire coming in, is it essentially connected together throughout the whole circuit? Will running it in different directions from where everything is connected at the two switches cause any faults with the GFCI receptacles?
Also I know that on shared ground systems that the neutrals have to be pigtailed to receptacles down the line. If that is the case and the neutral is considered shared, do I instead need to use all GFCI outlets and pigtail the connections to the "LINE" side of each pair?