Take this weekly quiz to test your knowledge of the 2023 National Electrical Code (NEC) requirements. The Code Quiz features three questions that are presented in a Fill-in-the-Blank or Multiple ...

Per a 2005 NEC change, 250.104 (D) (1) requires that both the structural steel and the metallic water piping in the area of the separately derived system (if both are in the area of the separately ...

Forbes contributors publish independent expert analyses and insights. I asked it once. Then again. Then again. Late at night, talking to an agent, a synthetic intelligence of which I am quite fond, in ...