250.32 B (1)

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BuckeyePowerSolutions

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Opinions Needed. If someone has an existing electrical service supplying a structure or structures with SERVICE CONDUCTORS ( conductors with no overcurrent protection ) from a remote location, such as a board with a meter base or a CT cabinet mounted on it. Now the service is being upgraded and disconnects are being installed with overcurrent protection added. Now these conductors become FEEDERS. Does the 250.32 B (1) exception apply in a scenario such as this?
 
IMO, 250.32(B)(1) would not technically apply since it seems to apply to existing feeders & branch circuits.That said, I have encountered the identical situation on occasion and the AHJ allowed the existing to suffice especially when adding the additional conductor was a monumental task.
 
augie47 said:
IMO, 250.32(B)(1) would not technically apply since it seems to apply to existing feeders & branch circuits.That said, I have encountered the identical situation on occasion and the AHJ allowed the existing to suffice especially when adding the additional conductor was a monumental task.
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I agree monumental task or not. :D
 
That's sure a grey area, and a good question. I think it's an existing compliant installationand the sort of thing the exception was intended for. (That is unless you've left something out of the description; AHJs I've dealt with have demanded to see documentation of permits and inspections on existing installations to use the exception.) In any case I would ask the AHJ before proceeding, it all depends if they see eye-to-eye with you. I've dealt with AHJs that don't seem to even know about or understand the exception in the first place, which wouldn't be auspicious for a situation like this.
 
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