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Hi there,

I was doing a question on an assignment and it asked " Must neutrals of 3-wire circuits running through outlet boxes be 'pigtailed'? I have read some other forums and I couldn't found the actual rule in the CEC (2012 version) that states if it needs to be pigtailed or not. If anyone could help me that would be great!

Thanks
 

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Super Moderator
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In the states the neutrals of a MWBC must be pigtailed.
 

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4-036(4)

(4) where conductors of a multi-wire branch circuit are installed, employing an identified conductor, the
continuity of the identified conductor shall be independent of device connections, such as lampholders,
receptacles, ballasts, etc., so that devices may be disconnected without interrupting the continuity of the
identified conductor.
 

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Remodel and New Build GC
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That neutral should be protedted from being broken (disconnected) as best as possible (pigtailing provides some protection and is coded).

My Electric BI... suggests/likes it when you break a MWBC in a separate blank J-box.

When available/aesthetically convenient I do. (Cost's all of $5 L&M).

There does seem to be alot of HO lack of knowledge /confusion with MWBC... and let's be honest, alot of HO's screw with wiring.

I happen to think that is good and a cheap safety buy.

Best
 
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