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Isolated Neutral


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I'm just double checking since my electrical expertise is second best.

The main disconnect is outside at the meter about 30 feet away from this panel. So this panel in the garage is really a subpanel.

It looks like the grounding electrode is not isolated from the neutrals. This is wrong? Correct?

The wiring looks so sweet that it doesn't seem likely that the electrician would screw this up.

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That might be a neutral that was added to make what once was a 2 wire with ground 240 dedicated into a 3 wire with ground 120/240. Could you see where it went?

I don't understand why it is sheathed in black insulation though. If it were a ground or a neutral, I think it should either be bare or have a white sheathing.

I'd be confused looking at that too.

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I'm just double checking since my electrical expertise is second best.

The main disconnect is outside at the meter about 30 feet away from this panel. So this panel in the garage is really a subpanel.

It looks like the grounding electrode is not isolated from the neutrals. This is wrong? Correct?

The wiring looks so sweet that it doesn't seem likely that the electrician would screw this up.

I presume that this panel's feeder includes an equipment grounding conductor? And that there's an equipment grounding terminal bar?

If so then, yes, the grounding electrode conductor should land on the grounding terminal bar and not the neutral terminal bar. (250.32)

I'm not aware of any requirement to identify the grounding electrode conductor with a particular color. It doesn't need to be green.

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I'm just double checking since my electrical expertise is second best.

The main disconnect is outside at the meter about 30 feet away from this panel. So this panel in the garage is really a subpanel.

It looks like the grounding electrode is not isolated from the neutrals. This is wrong? Correct?

The wiring looks so sweet that it doesn't seem likely that the electrician would screw this up.

I presume that this panel's feeder includes an equipment grounding conductor? And that there's an equipment grounding terminal bar?

I assume so. I did not remove the service cover. It was raining.

Thanks for all comments.

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