wet locations and j-boxes

[electrofelon]

A two part question here, both involving a sewer pump I did a while back:

First, what does the code say about the listing requirements of cables and conductors in open bottom outdoor junction boxes? We have a state level code that requires that they must be listed for direct burial unless certain requirements are met and in that case they only need to be listed for wet locations. Cant find anything in the NEC that mentions these boxes.

Secondly, If a pvc junction box that is listed for wet locations is installed in a wet location, is the inside of the box ever considered a wet location? I had this setup and the inspector required wet location wire nuts which I thought was strange.

Regards

 

[iwire]

Re: wet locations and j-boxes

Originally posted by electrofelon:
First, what does the code say about the listing requirements of cables and conductors in open bottom outdoor junction boxes?

The NEC has not recognized these as 'boxes' that being the case the NEC requires DB conductors and connectors.

Originally posted by electrofelon:
Secondly, If a pvc junction box that is listed for wet locations is installed in a wet location, is the inside of the box ever considered a wet location?

That gets battled here quite a bit.

Sorry I can not give you a yes or no answer on question 2.

 

[electricmanscott]

Re: wet locations and j-boxes

Having opened pvc boxes installed in wet locations after several years I can say for certain that they are wet locations.

 

[electrofelon]

Re: wet locations and j-boxes

interesting, thanks guys.

 

[LarryFine]

Re: wet locations and j-boxes

Inside a box, raceway, or fitting is not a location. The conductors are located wherever the PVC is located.

 

[iwire]

Re: wet locations and j-boxes

Originally posted by LarryFine:
Inside a box, raceway, or fitting is not a location. The conductors are located wherever the PVC is located.

Larry that sounds good but would also prohibit breakers, GFCIs, receptacles, switches etc. for being installed in any enclosure located in a wet location.