Courtesy of www.MikeHolt.com. Based on the 2023 NEC.
Question: Metal faceplates for snap switches, including dimmer and similar control switches, shall be connected _____ whether or not a metal faceplate is installed.
a) to the grounded electrode
b) to the equipment grounding conductor
c) to the grounded conductor
d) to the ungrounded conductor
See answer below.
Answer: b) to the equipment grounding conductor
Section 404.9(B) states, "Metal faceplates shall be connected to an equipment grounding conductor" whether or not a metal faceplate is installed.
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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.