ECN Forum
Posted By: Cinner 3 Phase Sharing Neutral - 09/21/07 04:17 AM
When sharing a neutral with three phases: red, black, and blue do you require a 3 pole breaker tripping the other two phases if one phase trips?

Posted By: Tesla Re: 3 Phase Sharing Neutral - 09/21/07 04:36 AM
Not in commercial practice.
Posted By: frenchelectrican Re: 3 Phase Sharing Neutral - 09/21/07 06:33 AM
right now not need to tied in commercal loacation but there is a change in 08 code cycle it will requried all MWBC have to be use the common tied breaker that go with resdnetneal area as well

merci , marc
Posted By: bigrockk Re: 3 Phase Sharing Neutral - 09/21/07 10:17 PM
Cinner,

I see you are from Kelowna, B.C so if you are looking for a rule in the CEC checkout 14-010(b). (19th edition CEC)

© ECN Electrical Forums