What is the minimum height requirement for electrical equipment clearance?

The minimum height requirement for electrical equipment clearance is 78 inches. This specification is established to ensure safe access to electrical equipment for maintenance, operation, and inspection purposes. Adequate clearance helps prevent accidental contact with electrical systems and facilitates the safe movement of personnel, particularly in areas where equipment may be installed in locations frequented by individuals.

Setting the minimum height at 78 inches allows for various applications, including the installation of lighting, switches, and receptacles that are often mounted at or near similar heights for convenience. This requirement is part of the National Electrical Code (NEC), which provides guidelines to ensure safety in electrical installations. Therefore, the selection of 78 inches reflects a recognized standard to promote safety and functionality in residential and commercial settings.