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#15143 - 10/08/02 03:53 PM circuit breaker  
mountainman  Offline
Member
Joined: Jan 2002
Posts: 54
Richmond Va. U.S.A.
Why does the code limit only 42 overcurrent devices per panel?


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#15144 - 10/08/02 04:29 PM Re: circuit breaker  
Tom  Offline
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Joined: Jan 2001
Posts: 1,044
Shinnston, WV USA
I remember reading an article some years ago that addressed this. Seems at one time there was no limit and a very large fusebox at a hotel caught fire. This was in the days of rubber covered wire & this produced quite a bit of smoke which resulted in some deaths. In order to limit the available fuel, it was decided to limit the number of circuits.

You should also see 90.8(B)

Tom


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