No.Does the underground conduit to electric vehicle charging station needs to be certain type?
Does the underground conduit to electric vehicle charging station needs to be certain type?
I believe EMT has been approved for direct burial for years, with corrosion protection. 358.10(B).To comply with NEC, any raceway that is permitted to be direct buried is fine.
A couple off top of my head that can not be direct buried are FMC and ENT, and believe it or not I think EMT will be permitted to be direct buried in 2017 NEC.
You are correct. I believe there was a change in 2017 though, but can't tell you for certain as I don't have a 2017 yet. This from recollection from discussion in a CEU I attended. From that discussion, apparently today's EMT is better corrosion resistance then it used to be is the reason for the change. Not sure I agree with that nor did most in the class, but that is what I recall being presented.I believe EMT has been approved for direct burial for years, with corrosion protection. 358.10(B).