Dang that is a lot of money in code books😀, thank you for the explanation, I have seen stripped romex run in conduit a lot in my day, seems like a simple solution to use some UF cable when needed.
Here in Canada UF cable is not so popular, we use wet location specific NM cable. It's stiff black with thicker insulation, somewhat different than UF. The big issue is for a short stretch of wire that bridges the gap between 18" underground line and line entering the outside wall of the building, where you need mechanical protection of the wire. In that case inspectors allow the short stretch (40% air in the cross sectional area of the conduit/wire so you meet raceway fill requirements. That thick insulation eats up the air gap so you need to upsize the conduit. Ultimately that issue is about heat dissipation. Unstranded NM cable is a pain to pull in anyway, and you're confined to 60 deg column of table 2, so most pull in single wet location wires as needed if the job calls for conduit the whole way.
Help me out here….. for example Table C.1…. Where on that table does it make reference to NM cable for pipe fill for EMT? Or RMC? Or any type in conduit?
I feel like most people are inconsistent with their definition of "pipe" -- I consider a pipe to be any long manmade object with a void allowing something to be run through it. For what it's worth Home Depot disagrees.
People will say you can't call rigid galvanized "pipe" because it HAS TO be called conduit. Sure that's fine until it's time to go get the Conduit Threader. Oh wait, there's no such thing. You need a pipe threader.
I can tell you, I came across romex in a crawl space that was dripping with water and was hot. It came from a conduit that came from outside, it was so dangerous that I was surprised that no one was seriously injured.
