When to require bonding both ends of a home-run conduit to the EGC?

electrofelon said:
As a little side rant, yeah I hate BB and doubt they even accomplish much. They are so horribly designed. They need more lug and setscrew options around the perimeter. Also most fittings are not deep enough for the setscrew to grab, especially when you use a plastic enclosure . Finally there is no anti turn function on the lug so pretty hard to get them to stay tight in practice. 👎
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I feel your pain, I do!:sneaky:
 
photonboy said:
When bell boxes are used as roof j-boxes we do require the enclosure itself to be bonded with a lug or terminal........
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All Bell boxes I have seen have 1 (maybe two) green ground screws into the metal body. Is that what you mean?

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Zee said:
Well those plastic boxes are better than the boxes I expected when you said plastic. I agree: definitely place any plastic UNDER the panels.

Last plastic box I saw was this on a 10-year old install:
(I am skeptical metal boxes will look like this in 10 years)

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Wonder why they used a Myers hub on that box. Waste of money for no benefit.
 
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photonboy said:
Wonder why they used a Myers hub on that box. Waste of money for no benefit.
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For the same reason I just wrote: Meyers hubs have longer threads I think.
The Cantex PVC box is particularly thick walled.... so that lends credence to my assumption.

Also, they may worry about water proofing and a hub has a nice rubber seal.

Who knows!
 
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