Code Quiz of Day

Attachment Height of Overhead Service Conductors

June 5, 2015

The minimum point of attachment of overhead service conductors to a building shall not be less than ______ above finished grade.

Mike Holt

The minimum point of attachment of overhead service conductors to a building shall not be less than ______ above finished grade.

a) 8 ft
b) 10 ft
c) 12 ft
d) 15 ft

See answer and applicable Code reference

The correct answer is: b) 10 ft

Installation requirements for overhead service conductors are outlined in Part II of Art. 230. As noted in Sec. 230.26, "The point of attachment of the overhead service conductors to a building or other structure shall provide the minimum clearances as specified in 230.9 and 230.24. In no case shall this point of attachment be less than 10 ft above finished grade."

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.