I'm finishing up plans for a house and I'd like to use something like trenchduct (Wiremold TM) around the edges of the slab (in part because I'm concerned that the rammed earth contractor will leave one or more boxes buried in the walls if I go with conduit in the walls.) However, I don't want something quite so industrial looking. I'd like to cover the "trench" with hardwood or something similar. What part of the code applies to this type of installation, esp in residential use? How are conductors in the trench treated? Trenchduct qualifies as conduit so you can run anything you could run in conduit of similar cross-section. Presumably a concrete trench doesn't qualify as conduit, but what is it? Same as inside a wall? Under a floor? How does the answer change if the cover is removable and the outlets are inside the trench. (ie, lamp cords, etc will enter through grommets and be plugged in beneath the cover.)
Thanks.
Thanks.