The dedicated space above a panelboard extends to a dropped or suspended ceiling, which is considered a structural ceiling.
a) True
b) False
See answer and applicable Code reference
The correct answer is: b) False
All switchboards, panelboards and motor control centers shall be located in dedicated spaces and protected from damage. As noted in Sec. 110.26(E)(1)(d), "A dropped, suspended, or similar ceiling that does not add strength to the building structure shall not be considered a structural ceiling."
About the Author
Mike Holt
Mike Holt is the owner of Mike Holt Enterprises (www.MikeHolt.com), one of the largest electrical publishers in the United States. He earned a master's degree in the Business Administration Program (MBA) from the University of Miami. He earned his reputation as a National Electrical Code (NEC) expert by working his way up through the electrical trade. Formally a construction editor for two different trade publications, Mike started his career as an apprentice electrician and eventually became a master electrician, an electrical inspector, a contractor, and an educator. Mike has taught more than 1,000 classes on 30 different electrical-related subjects — ranging from alarm installations to exam preparation and voltage drop calculations. He continues to produce seminars, videos, books, and online training for the trade as well as contribute monthly Code content to EC&M magazine.
