Code Quiz of Day

Luminaire Requirements in Class II, Division 2 Locations

June 26, 2015

Luminaires for fixed lighting in Class II, Division 2 locations shall be equipped with enclosures that are _____ or otherwise identified for the location.

Mike Holt

Luminaires for fixed lighting in Class II, Division 2 locations shall be equipped with enclosures that are _____ or otherwise identified for the location.

a) dust-ignitionproof
b) dusttight
c) dustproof
d) explosionproof

See answer and applicable Code reference

The correct answer is: b) dusttight

Article 502 covers the requirements for electrical equipment and wiring installed in Class II, Division 1 and 2 locations. As noted in Sec. 502.130(B)(2), luminaires for fixed lighting installed in Class II, Division 2 locations shall be provided with enclosures that are dusttight or otherwise identified for the location.

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.