Ecmweb 2276 300 11a01web
Ecmweb 2276 300 11a01web
Ecmweb 2276 300 11a01web
Ecmweb 2276 300 11a01web
Ecmweb 2276 300 11a01web

Code Q&A

Aug. 26, 2010
Q. Is the electrical wiring system used to feed ceiling fixtures allowed to be supported by the ceiling support wires?

Q. Is the electrical wiring system used to feed ceiling fixtures allowed to be supported by the ceiling support wires?

A. No. Raceways, cable assemblies, boxes, cabinets, and fittings must be securely fastened in place. The ceiling-support wires or ceiling grid must not be used to support raceways and cables (power, signaling, or communications). However, independent support wires that are secured at both ends and provide secure support are permitted [300.11(A)].

Outlet boxes [314.23(D)] and luminaires can be secured to the suspended-ceiling grid if securely fastened to the ceiling-framing members by mechanical means, such as bolts, screws, or rivets — or by the use of clips or other securing means identified for use with the type of ceiling-framing member(s) used [410.36(B)].

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.

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