sub panel to my garrage, do i need to run a ground wire from my main panel to my sub panel with 6-3 or can i use 6-2 and use a in groung rod for the sub panel?
thank you
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sub panel to my garrage, do i need to run a ground wire from my main panel to my sub panel with 6-3 or can i use 6-2 and use a in groung rod for the sub panel?
thank you
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