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Thread: Two Main Breakers
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03-21-2020, 02:32 PM #1
Two Main Breakers
This house has a 225 amp main in a cabinet next to the meter box and another in the distribution panel. I can't seem to find a code reference for this issue. Help?
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03-21-2020, 03:18 PM #2
Re: Two Main Breakers
That would be the "service equipment panel and where the main service disconnect is located.
... and another in the distribution panel.
I can't seem to find a code reference for this issue.
I couldn't tell from the photos, but if the "service equipment panel" is properly wired as required and allowed for "service equipment", then that would be okay.
And if the "not service equipment" panel is properly wired as required and allowed for panels downstream from the "service equipment", then that would be okay too.
Look at the service equipment panel for service equipment wiring, and being fed by service entrance conductors.
Look at the downstream panel as being fed by feeder conductors, and those wiring practices.
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03-21-2020, 03:21 PM #3
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03-21-2020, 03:33 PM #4
Re: Two Main Breakers
The thing to look for (a common mistake) is that the downstream panel is not fed with service entrance conductors.
When you find that, it is likely an indication that the downstream panel actually was the service equipment panel, with a new service equipment panel added upstream of it (such as by the meter) and that the person who did the work didn't know what they were doing.
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03-22-2020, 10:13 PM #5
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