What is the minimum height required for dedicated indoor space above an electrical panelboard?

The minimum height required for dedicated indoor space above an electrical panelboard is designed to ensure safe access and maintenance. The National Electrical Code (NEC) specifies that there should be a clearance height of at least 6.5 feet (78 inches) above the electrical panel to allow easy access for operations such as reading the panel, resetting breakers, and performing maintenance.

Given that the choice indicates a minimum height of 14 feet, this would exceed the standards typically required. However, it is important to note that ensuring a greater height can offer additional safety to avoid accidental contact when work is being carried out in overhead areas, especially if equipment or fixtures penetrate the space above. This might be particularly applicable in certain commercial or industrial environments where more clearance is warranted to accommodate other systems or to prevent hazards.

In this case, if the dedicated space is indeed regulated to have a 14-foot clearance above the electrical panelboard, it underscores an added precautionary measure that aligns with best practices for safety and accessibility.