Lampholders shall be constructed, installed, or equipped with shades or guards so that _____ isn’t subjected to temperatures in excess of 90°C (194°F).
a) ferrous material
b) the shade or guard
c) combustible material
d) a or b
See answer and applicable Code reference
The correct answer is: c) combustible material
Article 410 covers requirements for luminaires, lampholders and lamps. Part VIII of this Article focuses on the installation of lampholders. As noted in Sec. 410.97, "Lampholders shall be constructed, installed, or equipped with shades or guards so that combustible material is not subjected to temperatures in excess of 90°C (194°F)."
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.