Furniture feeds sharing neutral

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JJWalecka

JJWalecka

Senior Member
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New England
Furniture feed has a shared neutral number 10 AWG. Should there be a number 10 neutral feed the neutral... The phase conductors are number 12

Hypothetical installation.... all number 12 conductors...Black with a white...red with a white/red stripe... Both of white and the white/red stripe are spliced together... Along with the number 10 from the furniture feed.... Does that create some kind of issue?
 
You cannot splice the White/Blk and White/Red #12 neutrals together as you will be creating a parallel neutral. The neutral in the MWBC feed can be a #12 but they are typically oversized to compensate for the potential of harmonics.
 
All of the furniture feeds I’ve done have 4 circuits. A three phase sharing one neutral and one circuit with its own neutral and isolated ground.
If I have two hots and two neutrals, I connect the 3 circuits (I, II and III) and neutral to one circuit and the other hot/neutral for the single circuit if it’s even included in the furniture - Usually those are identified on the outlet as IV. Pink hot I think...???
Like Infinity said, you can’t tie the neutrals together.
As a side note, I hate furniture feeds. The whips are big and bulky to work with and the connectors in the bases tend to come loose quite often. Mainly since that part of installed by the furniture installers and I just have to wire the whip. And it’s usually no where near where I roughed in the feed...!!!



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ActionDave said:
I don't think you are creating a parallel neutral if you wire the white/red and the white/black together. They go to separate recpts so they are not electrically joined at each end.
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The OP said that they're spliced together.
 
ActionDave said:
I don't think you are creating a parallel neutral if you wire the white/red and the white/black together. They go to separate recpts so they are not electrically joined at each end.
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Sounds like he has a hypothetical 12/2/2 home run, and wants to connect both home run neutrals to a single furniture neutral
 
James L said:
Sounds like he has a hypothetical 12/2/2 home run, and wants to connect both home run neutrals to a single furniture neutral
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Yes it's a 12/2/2 homerun cable connected to a 12/3 with a #10 neutral.

So hypothetically, yes...the two #12 neutrals are connected to the #10
 
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