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I have a 7500 watt open frame gen that I use as a backup for my house power (all properly wired with a transfer switch, etc). The owners manual says to ground it. I’ve run a cable from the gen to the existing house ground rod. Is this OK?

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Yes, that’s okay.

Do you know if your transfer stitch was wired to isolate the ground conductor from the generator? That’s required if the generator itself has its own built-in ground/neutral bond.

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I lied. It’s not an actual transfer switch, but rather a breaker blocking plate that prevents the gen from backfeeding up line. IOW, in order to run gen power to the house I have to close the breaker from main service.

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