Inspected a job where the manufacturer built walls in the factory and installed non metallic boxes and smurf tubing inside the walls and styrafoam (spelling) insulation. Walls are sealed up and now he wants the electrical contractor to pull in NM cable for the wiring method. My understanding is that this would violate the code. NM cable is not Listed for use in ENT. I believe the contractor should be using single conductors. What does this forum think?


George Little