Explanation: There is a common misconception that temporary wiring is exempt from the Code, but Sec. 590.2(A) in the 2020 NEC requires temporary wiring to comply with the requirements for permanent ...

Ready to cross that electrical project off your to-do list? Understand wiring color codes so you can finish the job safely.

All questions and answers are based on the 2017 NEC. Underlined text indicates a Code change. Q. What are the Code rules regarding wiring installed in ducts specifically fabricated for environmental ...

This article discusses many common misunderstandings about the function of the neutral wire and its relation to power problems. The subjects of dedicated lines, phase reversal, isolation transformers, ...