Number and Size of Conductors in Raceway

Section 300.17 covers the rules for the number and size of conductors in raceway.

Dec. 17, 2014

The number and size of conductors permitted in a raceway is limited to _____.

a) permit heat to dissipate
b) prevent damage to insulation during installation
c) prevent damage to insulation during removal of conductors
d) all of the above

See answer and applicable Code reference

The correct answer is: d ) all of the above

Section 300.17 covers the rules for the number and size of conductors in raceway. It specifically states, "The number and size of conductors in any raceway shall not be more than will be permit dissipation of the heat and ready installation or withdrawal of the conductors without damage to the conductors or to their insulation."

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.