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The original was posted on /r/electricians by /u/Background-Metal-601 on 2024-01-23 03:39:53+00:00.
Let me say from the outset that I am 3rd year apprentice but I've mostly done commercial up till now. The shop im wiring is my dad's, he's pulling the permits as a homeowner and everything is getting inspected. Just have a few questions for the resi guys about best practice and such. Call out any errors or advise as needed if you got a minute!
First as I understand it lighting in a detached garage can be on a regular 20 amp non afci breaker. I should mention that it is getting sheetrocked so it is a detached but finished garage does this change anything?
Current plan is 2 circuits for the plugs, 4-5 plugs on each. Thinking I'll do gfi breaker's with the pigtails so they work on the sub panel. For the sub panel Ill pull 2-2-2-4 urd aluminum for 100amps about 60 feet. Driving 2 separate ground rods since it's a separate structure.
There is also an attic fan. How do you guys typically wire these? Dedicated seems overkill and as far as I can tell shouldn't be necessary? I'm thinking I'll run a hot from the lighting circuit to it so it won't be with the gfis.
Also want to have a welder plug About 70 ft of wire from the panel. Haven't bought the welder yet but I'm assuming 6/3 on a 50 amp should cover most any mig welder we'd be in the market for. Voltage drop from sub panel is <2%.