1 GROUND OR MORE? For multiple circuits in one conduit
Situation: Setting out to upgrade the garage electrical for workshop. Meter main is on outside of wall, with space, so that is not an issue. Plan surface mounted EMT with several circuits in it and 4" J boxes on the walls:
2 - 20A, 12/3 WG, 120v balanced circuits for the outlets on both sides
1 - 30A, 10/2 WG, 240v compressor/welder/whatever circuit for later (Got no compressor, got no welder - and I am not sure what amps they pull. Might have to increase wire size.
Question is: with several circuits in one run, can they share a ground wire or should each circuit have it's very own ground wire.
Please! Don't make me read my obso 1996 copy of the code. I though I spoke and wrote fluent English - until I started reading that. It only seems to be written in English.
"Never met a man who couldn't teach me something." Anon.
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