Armored Cable

When it comes to house electrical wiring, local ordinances are more strict than national codes. That is why you might find that in some areas NM cables are not permitted for use and in these locations, armored or AC cables are used instead. AC wiring, also known as BX, goes back to the early 1900s and is designed with flexible metallic sheathing, which offers extra protection for the conductors inside. In commercial buildings or residential constructions with more than three stories, AC cannot be used.   read more