Houses built before World War I often have plaster walls and original “knob-and-tube” wiring, which was installed according to old, outdated electrical code ... box edges to anchor it solidly ...

All questions and answers are based on the 2023 NEC. Q. What are the NEC requirements related to flush-mounted boxes? A. The NEC requirements related to flush-mounted ...

"The clearance from the box wall to the installed device or equipment shall not be less than 1/2 in." Lupacchino is a senior design engineer with Gaylor Electric, Inc. in Noblesville, Ind. and serves ...