Code Quiz of Day

Elevator Machine or Control Room Wiring Requirements

Dec. 3, 2014

Article 620 covers the installation of electrical equipment and wiring used in connection with elevators, dumbwaiters, escalators, moving walks, platform lifts, and stairway lifts.

Mike Holt

A(n) _____ shall be located at the point of entry to an elevator machine room.

a) directory
b) lighting switch
c) control circuit disconnecting means
d) emergency exit map

See answer and applicable Code reference

The correct answer is: b) lighting switch

Article 620 covers the installation of electrical equipment and wiring used in connection with elevators, dumbwaiters, escalators, moving walks, platform lifts, and stairway lifts. Wiring requirements are outlined in Part III of this Article. As per Sec. 620.23(B), "The machine room or control room/machinery space or control space lighting switch shall be located at the point of entry."

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.