What is the minimum distance that combustible materials must be from electric panelboards?

The minimum distance that combustible materials must be from electric panelboards is 30 inches. This requirement is established to ensure safety by preventing the risk of fire hazards that could arise from electrical faults or excessive heat generated by the panel.

Keeping combustible materials at this distance allows for sufficient airflow around the panel, reducing the risk of overheating and providing clear access for maintenance and emergency response. This distance is in accordance with electrical codes, such as the National Electrical Code (NEC), which aim to safeguard both personnel and property by outlining clear standards for electrical installations.

The other distances offered as options either do not meet the code requirements for safe operational distances or exceed what is outlined in regulations for maintaining an effective and safe electrical environment.