Can't remember.....is it two nuetrals under the same screw or grounds?

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c2500

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After an 80 hour week last week I am brain dead. I am about out of space on a GE load center, and can't recall if I can double up nuetrals (or grounds) under the same screw. 02 NEC is my code year. I am drawing a blank.

Thanks for the input,

c2500
 
c2500 said:
After an 80 hour week last week I am brain dead. I am about out of space on a GE load center, and can't recall if I can double up nuetrals (or grounds) under the same screw. 02 NEC is my code year. I am drawing a blank.

Thanks for the input,

c2500
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Look at the spec's on the panel cover. Grounds probably.
 
c2500 said:
After an 80 hour week last week I am brain dead. I am about out of space on a GE load center, and can't recall if I can double up nuetrals (or grounds) under the same screw. 02 NEC is my code year. I am drawing a blank.

Thanks for the input,

c2500
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You cannot double the neutrals. I am not at my desk so I don't have a code article
 
it is also a violation of UL, look in the UL white book in the back under panelboard marking guide, (wiring terminals #66)
 
Probably grounds... imagine having two neutrals under the same screw. If you need to disconnect one of them you run the risk of accidentally disconnecting the other one too, and someone might have just typed up the Secret to Perpetual Motion on their computer and not saved it yet. If that computer is on the other circuit, whoops!
 
Neutral wires "violation"110.14 A:mad:

Ground wires "ok"110.3(B) :)

Some sections of the Code require listed or labeled equipment. Section 110.3(B) simply requires installation to follow any manufacturers? instructions that are part of a listing or labeling
 
"Neutral wires "violation"110.14 A"

I don't see the violation in that section. 110.14 A refers more to termination of dissimilar metals. I've always gone by what the panel cover says. It'll tell you if you can secure more than one conductor under one screw. It usually requires the conductors to be the same size. It doesn't matter if it's a neutral or a ground.

Andrew
 
buzzbar said:
"Neutral wires "violation"110.14 A"

I don't see the violation in that section. 110.14 A refers more to termination of dissimilar metals. I've always gone by what the panel cover says. It'll tell you if you can secure more than one conductor under one screw. It usually requires the conductors to be the same size. It doesn't matter if it's a neutral or a ground.

Andrew
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There is no panel that has been sold in the last 15 or 20 years that has instructions that permit the use of more than one neutral conductor with a single screw. This has been part of the product standard for many years and the only reason we have a code rule, is the fact that too many installers do not bother to read the label on the panel.

As far as 110.14(A) goes, it does apply....look at the last sentence of the section.
 
weressl said:
No double neutrals, it is against the Code. Doubled grounds are also bad practice, but not against the Code.
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The reason I was asking...I never do it. I will add an extra busbar if necessary. However, I am buried in this job. Lots of problems cropping up due to previous "hack" work. While I will get paid for some of the repairs, I can see some issues at the end of the job.
 
The reason Grounds are allowed to be doubled and the grounded is not(if I understand correctly) is because of the possibility of inadvertently removing a grounded conductor that is part of a live circuit.The danger that would pose is huge,especially if it it a mwbc.
 
don_resqcapt19 said:
There is no panel that has been sold in the last 15 or 20 years that has instructions that permit the use of more than one neutral conductor with a single screw. This has been part of the product standard for many years and the only reason we have a code rule, is the fact that too many installers do not bother to read the label on the panel.

As far as 110.14(A) goes, it does apply....look at the last sentence of the section.
Click to expand...

Don is exactly right. No manufature is going to put out a panel telling you it's ok to violate 110.14(A)

Also 110.14 talks about how to make proper electrical connections not just dissimilar metal. Don't just skim it. Really read it and see all the elements it talks about to make proper connections
 
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