Multiwire circuit on emergency power

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electricg

Member
Location
wa
Is it against code to extend or add onto an emergency circuit that is a multiwire branch circuit? I was told this is in the new 2014 code.
 

texie

Senior Member
Location
Fort Collins, Colorado
Occupation
Electrician, Contractor, Inspector
Is it against code to extend or add onto an emergency circuit that is a multiwire branch circuit? I was told this is in the new 2014 code.

I think you are referring to the new 700.19 that prohibits MWBC for these circuits. There is no mention of how to handle extensions of existing circuits (as for example, AFCI circuits). I guess this would be an AHJ call.
 

electricg

Member
Location
wa
What code does your jurisdiction use today? Are you already on the 2014 code?

Yes, we are in the 2014. Wasn't sure what article that was under. But unless I am reading it incorrectly, it appears what I heard may be true if there is no local amendment to address this.
 
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