I suppose one could build an airplane out of beer cans- but that's not really what the cans were intended for.
In a like manner, Romex was never intended for use in anything but the most simple of installations, such as homes were in the '30's.
(That's right- Romex dates from the '30's).
Let's keep in mind the DIS-advantages of using Romex:
- You're stuck with the provided colors. This becomes an issue with switch legs;
- You're stuck with the provided quantity of wires (so you get to carry multiple rolls);
- You're stuck with one wire size per cable. If your final location is one where you need different sizes, you get to pull multiple cables;
- You're limited to two cables (circuits) per connector; when entering a panel from the ends, you quickly run out of places to pu those connectors; and,
- Every cable has its' own ground wire. Panels get crowded pretty quickly!
I'm not trying to 'bash' the stuff; it's just that on the typical commercial or industrial job, I see nothing but MORE work using it rather than pipe.
Sure, running pipe takes more tools than a stapler and a pair of snips- but you are able to pull additional wires later (even replace a junction with a sub-panel if you desire), and get additional protection as well.
