All questions and answers are based on the 2017 NEC. Q. Does the NEC allow a cable tray to be used as an equipment grounding conductor (EGC)? A. Metal cable trays can be used as EGCs where continuous ...

The NEC Chapter Three wiring methods include various cable types, such as: 1) armored cable (Type AC) [Art. 320]; 2) metal-clad cable (Type MC) [Art. 330]; 3) nonmetallic-sheathed cable (Types NM and ...