DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Electrical and Wiring > Bonded Ground and Neutal in Outbuilding Panel




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Old 04-12-2014, 11:17 AM  
VikingsFan
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Originally Posted by speedy petey View Post
. . . you CANNOT use a GFI or AFCI feeder breaker in cases like this. You'll have to protect everything from the sub-panel location or local devices.
Makes total sense. I am looking to hook up a control panel for some power equipment that can be run wet. I can easily add a DIN mount AFCI to that panel, however, which should suit my purposes fine.

I'm still not clear on the whole ground / neutral bonded vs. not bonded, but the consensus seems to be that they should be connected in this scenario. I would love to simply add a ground to the run from the main building to the outbuilding, but that would be a challenge. There's no pull string and its a buried run of Sealtite that seems to make a few sharp turns.

Anyway, I appreciate all the feedback. I'm just trying to be safe here, and I'm glad there's a place I can get some solid advice.

Thanks for all the great replies!


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Old 04-12-2014, 01:24 PM  
Wuzzat?
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I'm still not clear on the whole ground / neutral bonded vs. not bonded,
That makes two of us.

I will add that

if
you have a neutral conductor that is sensed by a GFCI and
has a ground rod at each end,

then
the soil will be pushing current through the neutral and
this may fool the GFCI because
the current going out the hot lead is almost certain to be not the same as that returning on the neutral lead.

Having just waded through the instructions for my income tax, you may notice that the electrical code is similar. They are a bunch of IF-THEN-ELSE statements but are not quite so clearly stated.

Also, there are logical fallacies in the elec. code, probably because the people who wrote it are likely not trained in symbolic logic. Some percentage of electricians get tripped up on these fallacies.

If you haven't read
http://www.goodreads.com/book/show/6919310-how-math-can-save-your-life
on symbolic logic or done programming and you want to understand these opaque and arcane documents, I'll pray for you.
The burden for understanding is on the reader and it might be an undue burden. I'm sure this is true for the US Tax Code, and there is at least one CPA who agrees with me.
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