Hard to know for sure how that is set up, but we do our grounds to the outside of electrical service boxes. We know that is how the Satellite dish installers recommend grounding in this fashion so we follow that. There are a number of corner clamps and edge clamps made for clamping onto the outside of the box and attaching a ground wire to it. So what you are doing would match their requirements for proper ground. This only works on the main electrical service box. You can't do this on air conditioner disconnects and the like.
Regards, David Coudron From: AF <[email protected]> On Behalf Of Sterling Jacobson Sent: Tuesday, May 21, 2019 6:54 PM To: AnimalFarm Microwave Users Group <[email protected]> Subject: [AFMUG] House Grounding I have a house POP where the electrical service had a grounding bar attached/screwed into the side of it, but nothing on it. Is it possible that the grounding bar is grounded internally somehow? Or maybe the whole electrical box is grounded already and therefor that bar is also properly grounded? Just never seen that, and am thinking it's more likely that they disconnected the grounding wire to a grounding rod during landscaping. I haven't had a chance to really dig around their service conduit to look for a grounding rod, but none was immediately visible. I went ahead and tied in my box grounding bar to that grounding bar anyways.
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