Mobile Home Feed

[Oldmaster2]

Installed 4/0 USE from pedestal to panel in mobile home. Inspector rejected it stating USE is not permitted inside mobile home. It is in conduit coming out of the ground. Never heard this before.

 

[Oldmaster2]

Feed, sorry.

 

[infinity]

USE is not listed for entrance into the mobile home (even in a raceway) unless it's listed as a recognized NEC conductor like RHW-2, etc.

 

[kwired]

USE is not listed for entrance into the mobile home any building (even in a raceway) unless it's listed as a recognized NEC conductor like RHW-2, etc.

FIFY.

If conductors are only marked "USE" they can't be indoors, period. If they have multiple markings such as "USE, RHW, RHW-2" then the RHW** designation is what allows them indoors. Straight USE doesn't have the same flame and smoke producing characteristics as those other types have I believe is the reasoning.

 

[Oldmaster2]

First time called on this. Guess I've been lucky.

 

[ActionDave]

Are you sure you don't have dual rating on your insulation? Straight USE is kinda rare in my experience

 

[Oldmaster2]

It may be dual rated. I'll have to check.

 

[infinity]

FIFY.

If conductors are only marked "USE" they can't be indoors, period. If they have multiple markings such as "USE, RHW, RHW-2" then the RHW** designation is what allows them indoors. Straight USE doesn't have the same flame and smoke producing characteristics as those other types have I believe is the reasoning.

Nothing to fix, this thread is about a panel into mobile home no?

But you are correct they're not permitted to enter any structure.

 

[kwired]

Nothing to fix, this thread is about a panel into mobile home no?

But you are correct they're not permitted to enter any structure.

I was just "tryn to learn him" that it isn't solely an issue with mobile homes.

In fact if his inspector were to cite a code section that was violated it would not have been anything in art 550.

 

[Little Bill]

If the conductors are 4/0-4/0-4/0-2 mobile home feeder, then they are dual rated and allowed. We use it everyday.

 

[Oldmaster2]

Unfortunately it is not dual rated. Junction box under home with SER to panel.

 

[GoldDigger]

Unfortunately it is not dual rated. Junction box under home with SER to panel.

Under the home (inside the wall footprint) is considered to be inside unless under concrete.

 

[infinity]

Under the home (inside the wall footprint) is considered to be inside unless under concrete.

Does that apply to a mobile home?

 

[Oldmaster2]

Talked to the inspector. Under the home is not considered interior wiring.

 

[GoldDigger]

Does that apply to a mobile home?

Possibly not. It is a bit complicated as the wiring inside a mobile home is not covered AFAIK, while the outside feeders to it are covered by the NEC. So if the NEC says it is inside the building, it is not covered by NEC and may not be inside the building....