What is the minimum headroom clearance required for electrical panels?

The minimum headroom clearance required for electrical panels is 6.5 feet. This specification is in accordance with the National Electrical Code (NEC) and is designed to ensure safety and accessibility. A clearance of 6.5 feet allows sufficient space for an individual to operate or maintain the panel without the risk of bumping their head or being obstructed. This height helps accommodate taller individuals as well, ensuring that the panel can be approached comfortably.

The other options do not meet this safety standard; 5 feet may not provide enough clearance for users, particularly in a working environment where safety is paramount. Similarly, while 6 feet and 7 feet are appropriate heights, they either fall below the required minimum or exceed the necessary clearance, creating inefficiencies in design without added benefit. Adhering to the correct specification of 6.5 feet is essential for compliance and to promote a safe working environment around electrical installations.