White, black, red, and green are the most common wire colors you'll see in a home — and blue wires must be treated with caution. Here's why.

One aspect of home wiring that electrical inspectors will pay close attention to is the improper use of non-metallic cable (NM) in exposed locations. Common exposed locations where this is found are ...

Q. What wiring methods does the NEC allow above a suspended ceiling or other spaces used for environmental air? A. Electrical metallic tubing (EMT), rigid metal conduit (RMC), intermediate metal ...