Normally, I see a ground wire, green or 4 or 6 ga bare wire. I don’t see it in this one. This home was built 7 years ago. Any reason there wouldn’t be one? It is grounded outside at the meter which is directly behind it. The house is plumbed with PEX, I’m not sure how that would alter the grounding at the panel.
My thought is there is a grounding wire on the bushing to the to ground lug of the meter base. Of course, this would not be visible.
Thank you in advance.
Is there any NACHI videos on there site that cover this specific topic?