Question: Equipment, wiring, or methods that are acceptable to the authority having jurisdiction (AHJ) are considered ___________?
See the answer below.
Answer: approved
Explanation: The NEC uses the word "approved" to describe the minimum standard required for equipment wiring or other methods required for electrical installations. Whenever approved is used, the AHJ makes the decision as to what is acceptable. Most AHJ's rely on the listings of equipment by nationally recognized testing laboratories such as UL to determine the adequacy of equipment.
Lupacchino is a senior design engineer with Gaylor Electric, Inc. in Noblesville, Ind. and serves as an alternate on NEC Code-Making Panel No. 3. He is currently licensed in more than 80 jurisdictions. He can be reached at [email protected].