I hope I'm in the right forum. This my first time posting. I wanted to get some opinions sharing neutrals. i have usually in the past only share neutrals for successive numbers for example 1,3,5 w/N 7,9,11 w/N etc. But lately I have been working retail spaces where ones have shared neutrals for whatever numbers they wish as long as they are not the same phase of course. Can someone give me some insight on this.
Sharing Neutrals
- Thread starter darrylb
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hurk27
Senior Member
- Location
- Portage, Indiana NEC: 2008
Re: Sharing Neutrals
There is nothing in the NEC that prevent's which breaker space you use, other than it is the opposite phase.
I believe that in the "2005" 210.4(D) was changed to 210.5(C) and 200.6(A) and (D)and is more clarified that the ungrounded conductors has to be identifided by phase or if there is more than one shared neutral in the same race-way it has to be identified by one of the means listed (Grey,White with three Gray stripes, Grey with three White stripes.
I might not be getting it right but it was something like that.
[ October 09, 2004, 02:13 AM: Message edited by: hurk27 ]
There is nothing in the NEC that prevent's which breaker space you use, other than it is the opposite phase.
I believe that in the "2005" 210.4(D) was changed to 210.5(C) and 200.6(A) and (D)and is more clarified that the ungrounded conductors has to be identifided by phase or if there is more than one shared neutral in the same race-way it has to be identified by one of the means listed (Grey,White with three Gray stripes, Grey with three White stripes.
I might not be getting it right but it was something like that.
[ October 09, 2004, 02:13 AM: Message edited by: hurk27 ]
- Location
- Massachusetts
Re: Sharing Neutrals
There is one section I know that usually indirectly requires the breakers to be on consecutive poles. I say usually as you could use any opposite phases and run them through 2 pole switch at the panelboard.
210.4 Multiwire Branch Circuits.
[ October 09, 2004, 06:56 AM: Message edited by: iwire ]
I agree with Wayne.
There is one section I know that usually indirectly requires the breakers to be on consecutive poles. I say usually as you could use any opposite phases and run them through 2 pole switch at the panelboard.
210.4 Multiwire Branch Circuits.
[ October 09, 2004, 06:56 AM: Message edited by: iwire ]
petersonra
Senior Member
- Location
- Northern illinois
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- engineer
Re: Sharing Neutrals
The OP asked about retail spaces and the cited section seems to refer to residences.
The OP asked about retail spaces and the cited section seems to refer to residences.
- Location
- Massachusetts
Re: Sharing Neutrals
That is correct, I chose to elaborate a little.
[ October 09, 2004, 09:32 AM: Message edited by: iwire ]
That is correct, I chose to elaborate a little.
[ October 09, 2004, 09:32 AM: Message edited by: iwire ]
Re: Sharing Neutrals
Petersonra, I think that was what Bob was pointing out, but we could jump to the next page and see that "Multiple Branch Circuits" would require the same thing.
Randomly (probably not the correct word here) picking breaker positions for multi-wire circuits is a common practice, we do this on a regular basis in hospitals when adding circuits.
Roger
Petersonra, I think that was what Bob was pointing out, but we could jump to the next page and see that "Multiple Branch Circuits" would require the same thing.
Randomly (probably not the correct word here) picking breaker positions for multi-wire circuits is a common practice, we do this on a regular basis in hospitals when adding circuits.
Roger
Re: Sharing Neutrals
If you are laying out a new job I think it's the best but not required thing to put them in a row.
If you have a bigger job laid out on paper saying to put the breakers all over for the same network then I say do it. Just to follow the plans weather thought out well or not can eliminate future confusion and mistakes.
If you are adding circuit(s) on to an existing panel it's good if you have the spaces in a row but I would not rearange the panel to make it happen. Just identify it well (tape the together) in the panel.
If you are laying out a new job I think it's the best but not required thing to put them in a row.
If you have a bigger job laid out on paper saying to put the breakers all over for the same network then I say do it. Just to follow the plans weather thought out well or not can eliminate future confusion and mistakes.
If you are adding circuit(s) on to an existing panel it's good if you have the spaces in a row but I would not rearange the panel to make it happen. Just identify it well (tape the together) in the panel.
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