thhn/thwn in PVC in flood plain

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mjmike

Senior Member
Since THHN / THWN-2 is made for wet location, can it be installed in conduit below grade in the 100 year floodplain?
 

kwired

Electron manager
Location
NE Nebraska
Below grade is wet location to NEC regardless of floodplain details, answer is yes.

Non flooding areas often still end up having raceways filled with water because of condensation.
 

mjmike

Senior Member
Below grade is wet location to NEC regardless of floodplain details, answer is yes.

Non flooding areas often still end up having raceways filled with water because of condensation.

That is what I had concluded as well. I also believe the NEC does not specifically address electrical equipment in a floodplain. The closest article is 682 and that article scope does not match that of a floodplain.
 
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