Code Quiz of Day

Ampacity of Generator Conductors

April 23, 2015

Article 445 contains installation and other requirements for generators.

The ampacity of the conductors from the generator terminals to the first distribution device containing overcurrent protection shall not be less than ____% of the nameplate rating of the generator.

a) 75
b) 115
c) 125
d) 140

See answer and applicable Code reference

The correct answer is: b) 115

Article 445 contains installation and other requirements for generators. As clearly noted in the first sentence of Sec. 445.13, "The ampacity of the conductors from the generator terminals to the first distribution device(s) containing overcurrent protection shall not be less than 115% of the nameplate current rating of the generator."

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.