The NEC Articles covering conduit start with Art. 342 and end with Art. 356. The first four conduits are the metal ones: You can use IMC and RMC in all atmospheric conditions and occupancies [Sec. 342 ...

What is conduit? And would you say this definition from NEC Art. 100 is correct? “An enclosed channel designed expressly for holding wires, cables, or busbars, with additional functions as permitted ...

Not all outlet holes are the same, and there's a reason for that. The shapes (vertical slots, round holes, T-slots, etc.) correspond to specific electrical functions and safety features. Take the ...