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I have a detached garage with a sub panel. upon inspection I do not see a ground from the main panel and all of the grounds and neutrals in the sub are connected to the same block. I am replacing the sub panel and my question is do I separate the grounds and neutrals and add a ground rod to the sub because I have no ground from the main panel.

  • Was the feeder run using a direct burial cable, using wires in an underground conduit, or overhead using a triplex? – ThreePhaseEel Jan 31 at 4:24

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