No _____ shall be attached to any terminal or lead so as to reverse designated polarity.
a) grounded conductor
b) grounding conductor
c) ungrounded conductor
d) grounding connector
See answer and applicable Code reference
The correct answer is: a) grounded conductor
Chapter 2 of the NEC focuses on wiring and protection methods. The use and identifcation of grounded conductors is outlined in Art. 200. As per 200.11, "No grounded conductor shall be attached to any terminal or lead so as to reverse the designated polarity."
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.