National Electrical Code (NEC) Article 230 Practice Exam

The minimum height above finished grade for overhead service conductors' point of attachment to a building is indeed 10 feet. This requirement is established to ensure safety and accessibility, preventing accidental contact with the conductors by pedestrians or vehicles.

In residential areas, an overhead service drop must maintain this height to avoid potential hazards. The 10-foot clearance helps to protect both the electrical system and individuals on the ground, facilitating safer maintenance and operation of electrical services. This height is mandated by the NEC to standardize practices and promote safety across installations, reflecting the importance of proper clearance to minimize the risk of electrical shocks and interference with everyday activities.