- Location
- Tennessee NEC:2017
- Occupation
- Semi-Retired Electrician
What code year did the NEC require the grounding and grounded (neutral) to be isolated at a sub panel?
Reason I'm asking is I have to add another sub panel off of an existing sub panel and the neutrals and grounds are not separated. I didn't notice this on my walk through and didn't include straightening the old sub panel out in my price.
They did run a 4-wire feed to the sub but didn't isolate the neutral/grounds. I will of course isolate them in the new sub.
Would I be required to fix the old sub panel if it happens to have been required when it was installed?
Reason I'm asking is I have to add another sub panel off of an existing sub panel and the neutrals and grounds are not separated. I didn't notice this on my walk through and didn't include straightening the old sub panel out in my price.
They did run a 4-wire feed to the sub but didn't isolate the neutral/grounds. I will of course isolate them in the new sub.
Would I be required to fix the old sub panel if it happens to have been required when it was installed?