According to the National Electrical Code (NEC), what is the minimum clearance above grade?

The minimum clearance above grade as specified by the National Electrical Code (NEC) is indeed 10 feet. This requirement is crucial for safety reasons, ensuring that overhead electrical conductors are well above the reach of vehicles and equipment, thus reducing the risk of accidental contact that could lead to electrical hazards. The goal of this regulation is to protect the public and utility workers from potential electrical dangers, especially in locations where there is heavy equipment traffic or where lower clearances might increase risk.

Other options propose higher clearances that are not the stipulated minimum, and while higher clearances may provide added safety margin in certain situations, they exceed the established requirement by the NEC. Understanding these clearances is important for compliance and safety in electrical installations.