What is the maximum height for overcurrent device operating handles in panel boards within dwelling units?

The maximum height for overcurrent device operating handles in panel boards within dwelling units is set at 1.7 meters (5 feet). This standard is established to ensure safety and accessibility for users in residential settings. Operating handles that are too high can pose risks during emergency situations or regular maintenance, as they may be difficult to reach for some individuals.

By maintaining a height limit of 1.7 meters, the design promotes ease of use for the general population, which includes individuals of varying heights and abilities. This regulation also aligns with the principles of accessibility in electrical installations, ensuring that everyone can operate the panel board without undue difficulty or strain.

Understanding this regulation is important for electricians and contractors working on residential projects, as adhering to these standards ensures compliance with safety codes and enhances the usability of electrical systems in homes.