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David Tagney's avatar

Hi Mike. Some very good info here. I Bought an inverter generator and safety manual is indicating it should be grounded. I want to install a standalone circuit with 2/3 13A amp sockets so that I have power points in the house during an outage. Not going to connect with existing panel. Effectively a built in extension lead with a 16A IP rated socket outside. Do I need to ground my generator? Can I connect to existing grounding rod for main system? Manual also states “There is a permanent conductor between the generator (stator winding) and the frame. The statue winding is isolated from the frame and from the ac receptacle ground pin. Electrical devices that require a grounded receptacle pin connection will not function if the receptacle ground pin is not functional.

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Gary Stone's avatar

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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Mike Sokol's avatar

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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Gary Stone's avatar

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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