Sub Panel

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mgmcinc

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West Georgia
Existing Home Main Breaker House Panel.
2 small Subs set in basement areas. Just catching random things.
3 wire feeding. Home Inspector says NO GO.
Is he stating that because the 3rd wire...Neutral inside insulation like the 2 hots... or just wanting to justify his charges..
Sorry if dumb question..... Rough week..lol
 
mgmcinc said:
Existing Home Main Breaker House Panel.
2 small Subs set in basement areas. Just catching random things.
3 wire feeding. Home Inspector says NO GO.
Is he stating that because the 3rd wire...Neutral inside insulation like the 2 hots... or just wanting to justify his charges..
Sorry if dumb question..... Rough week..lol
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You can't run 3 wire anymore. You would need to run L1-L2-N-G. Been that way since about the 1990 edition. If it was legal when installed it does not have to be ripped out in most cases.
 
I don't think it was ever legal to run 3-wire in the same building. It was allowed (with exceptions) for a separate building but not in the same building.
 
Little Bill said:
I don't think it was ever legal to run 3-wire in the same building. It was allowed (with exceptions) for a separate building but not in the same building.
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I agree.

If the feeders are run in a metal raceway or armored cable it might be compliant.
 
what type of 3wire? romex, other ??
 
Little Bill said:
Not a direct quote but basically....

no continuous metallic paths between buildings and bonded to the system ground
no ground fault protection of equipment on supply side
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There's another thread farther down that has basically the same question, whether a 3 wire circuit (L1/L2/G) could be run from a pole disco to an outbuilding (modular/manufactured home)
 
Little Bill said:
I don't think it was ever legal to run 3-wire in the same building. It was allowed (with exceptions) for a separate building but not in the same building.
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Even before EGCs? There would be no reason to run a 4 wire feeder when the branch circuits had only 2 wires.
I don't really know - just asking to satisfy my curiosity.
 
retirede said:
Even before EGCs? There would be no reason to run a 4 wire feeder when the branch circuits had only 2 wires.
I don't really know - just asking to satisfy my curiosity.
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That's like asking if there was a speed limit for automobiles before they were invented!:p
 
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