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Electrical Contains discussions about electrical systems. This includes outlets, panels, wiring, et cetera.

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  #1  
Old 10/2/09, 11:50 AM
Ralph Brady's Avatar
Ralph Brady Ralph Brady is offline
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Default Ground/Nuetral tie bar

There is a bar connecting the ground and nuetral busses. The busses should not be tied together at this particular (sub) panel. Does this bar come out or is there some other was to separate them?

Thanks in advance.


ground-nuetral-tie-bar-pa013306.jpg

ground-nuetral-tie-bar-pa013305.jpg



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  #2  
Old 10/2/09, 12:03 PM
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Jeffrey R. Pope Jeffrey R. Pope is offline
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Default Re: Ground/Nuetral tie bar

The bar is removable.



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  #3  
Old 10/2/09, 12:07 PM
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Ralph Brady Ralph Brady is offline
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Default Re: Ground/Nuetral tie bar

Thank you Proffessor Pope!
I figured it was removeable.



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  #4  
Old 10/2/09, 1:16 PM
Jim Port Jim Port is offline
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Default Re: Ground/Nuetral tie bar

You just need to loosen the buss screw and then the screw thru the jumper and into the enclosure. The jumper is slotted to allow its removal from the bar.
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  #5  
Old 10/3/09, 10:05 AM
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Paul W. Abernathy Paul W. Abernathy is offline
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Default Re: Ground/Nuetral tie bar

I still see a technical code violation in the first image.....anyone know...

Check out 408.41 ( Easy Fix )



Paul W. Abernathy,CMI,CEI,CEPE
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  #6  
Old 10/3/09, 10:38 AM
Ed Bancroft Ed Bancroft is offline
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Default Re: Ground/Nuetral tie bar

Paul,

Is neutral and ground allowed to have more than 1 wire per lug ?
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  #7  
Old 10/3/09, 11:17 AM
Larry D. Kage Larry D. Kage is offline
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Default Re: Ground/Nuetral tie bar

Quote:
Originally Posted by pabernathy View Post
I still see a technical code violation in the first image.....anyone know...

Check out 408.41 ( Easy Fix )

408.41 Grounded Conductor Terminations. Each
grounded conductor shall terminate within the panelboard
in an individual terminal that is not also used for another
conductor.



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  #8  
Old 10/3/09, 11:17 AM
Kevin L. Luce Kevin L. Luce is offline
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Default Re: Ground/Nuetral tie bar

Quote:
Originally Posted by ebancroft View Post
Paul,

Is neutral and ground allowed to have more than 1 wire per lug ?
No and Yes. The neutral wires need to be separated while 2 wires under one connection is allowed.
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  #9  
Old 10/3/09, 11:31 AM
Kevin L. Luce Kevin L. Luce is offline
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Default Re: Ground/Nuetral tie bar

I did an inspection on a new construction yesterday and found the tie bar not removed in the Auxiliary panel. I took a look at some of the units that weren't done yet and seen the same thing. Ooops.

The plumber really screwed up by connecting the wrong water pipes to many of the fixtures. I seen hot water going into both toilets, Hot and cold reverse at many of the fixtures (kitchen and laundry tub was correct) and both showers producing nothing but hot water no matter where the handle was turned.
He has some work ahead of him since this is a slab house and most of the pipes are in the cement floor.
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  #10  
Old 10/3/09, 12:53 PM
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Sean Fogarty Sean Fogarty is offline
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Default Re: Ground/Nuetral tie bar

You could always swap the lines at the water heater, and swich the lines at the sink. Problem solved!



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  #11  
Old 10/3/09, 7:20 PM
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Paul W. Abernathy Paul W. Abernathy is offline
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Default Re: Ground/Nuetral tie bar

Quote:
Originally Posted by ebancroft View Post
Paul,

Is neutral and ground allowed to have more than 1 wire per lug ?
Equipment Grounding Conductors YES- Based on listing of the terminal bar or equipment

Grounded " Neutral" Condutors - No and sometimes Yes....No in that under normal conditions like the one shown here NO. However, their is an exception which does not apply to this example but it does apply to some conditions.

408.41 Grounded Conductor Terminations. Each
grounded conductor shall terminate within the panelboard
in an individual terminal that is not also used for another
conductor.

Exception: Grounded conductors of circuits with parallel
conductors shall be permitted to terminate in a single terminal
if the terminal is identified for connection of more
than one conductor.



Paul W. Abernathy,CMI,CEI,CEPE
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www.twitter.com/ElectricalGuru

- ICC & IAEI Certified Electrical Inspector
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- Look for my article in the Nov/Dec 2009 IAEI Magazine
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" visit www.TheElectricalGuru.com Today !"

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