Sharing Neutral At Receptacle

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Re: Sharing Neutral At Receptacle

Phil, although this is not what this thread is about, you sound as though you are scared of a Multi-Wire branch circuit.
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Roger, I'm not sure what this thread is about anymore. We've gone from a code violation to EMF issues and using gauss meters to flying frogs and plumbers installing insta-hot water heaters. I thought my answer to Bryan's original question was concise and to the point (at least the way I interpreted the question). However, many of the other respondents also had valid points to the way they interpreted the question. And I certainly don't have a fear of sharing a neutral in a multi-wire branch circuit, but I do have some concerns about DIYers with limited knowledge of electricity landing both of the ungrounded conductors on the same phase.

You've asked whether both cables are running in parallel and suggested the possibility of EMF issues, but if Bryan's assessment of the wiring configuration is,in fact, correct and there are (2) 12/2 home runs from the JB to the breaker panel, what would be YOUR interpretation of what should be done to make this safe and code compliant ?
 
Re: Sharing Neutral At Receptacle

forget that the disposal runs for a little time here and there.....and forget violation of 310.4 for just a min....

was the 12/3 installed to fix what was suppose to be 2 12/2 runs below sink(one switched for disposal)?

or,,,was the dishwasher added at a later date or the disposal added later?

the 2 12/2 in one box, are they 100% dedicated??? if this was done by a DIY, i would question it...

if they are dedicated or not dedicated, do as earlier posted and fish the extra romex and get right with code and you will loose all the What Ifs!!
 
Re: Sharing Neutral At Receptacle

Originally posted by bphgravity:
Other than the apparent code violation, what hazard is there or could there be due to this arrangement?
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This arrangement allows an open in neutral #1 to go completely un-noticed -- until someone gets ahold of the wrong end of neutral #2 while the it's being used as a return for a load fed by hot #1.

The code is supposed to save us from having to turn off every other breaker in the panel and check for return current on every neutral on the buss in order to safely work on a single circuit. But I guess that as long as there are people who ignore the code rather than using the correct cable, then we're never going to be safe from each other's work...
 
Re: Sharing Neutral At Receptacle

Originally posted by samneric:
The code is supposed to save us from having to turn off every other breaker in the panel and check for return current on every neutral on the buss in order to safely work on a single circuit.
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What gives you that idea? ;)
 
Re: Sharing Neutral At Receptacle

Originally posted by iwire:
Originally posted by samneric:
The code is supposed to save us from having to turn off every other breaker in the panel and check for return current on every neutral on the buss in order to safely work on a single circuit.
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What gives you that idea? :)
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Re: Sharing Neutral At Receptacle

After reading all these posts I guess frogs can have wings :eek:
 
Re: Sharing Neutral At Receptacle

Originally posted by samneric:
After re-reading that paragraph, I'd have to chock it up to insufficient morning coffee causing a thought needing much more work before attempted expression...
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Happens to all of us, :)

bhpgravity wasn't describing a multi-wire circuit.
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Yeah I know. :)

This comes up a lot at the jobs I work.

The engineer calls for separate neutrals for all 120 volt branch circuits, so I run 3 - 12/2 MCs to a locations to feed office cubes.

The office cubes arrive and are set up for multi wire feeds.

How can you hook it up without a violation? :D

Bob

[ June 03, 2004, 05:19 AM: Message edited by: iwire ]
 
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