How high above the floor or working platform should overcurrent devices be installed, disregarding exceptions?

The correct height for the installation of overcurrent devices, such as circuit breakers or fuses, is 6 feet, 7 inches above the floor or working platform. This specification is based on safety and accessibility considerations within the National Electrical Code (NEC) guidelines.

The height requirement ensures that overcurrent devices are positioned at a level that is readily accessible for operation without needing elevated equipment or ladders, posing a risk to safety during maintenance or troubleshooting. The specific height of 6 feet, 7 inches is crucial for complying with code provisions, which aim to provide a uniform standard for electrical installations, making it safer for personnel to operate these devices.

This standard height also helps in reducing the risks of accidental contact with live components by keeping them out of reach of small children and minimizing the risk of unintended interference in environments where multiple activities take place. Overall, installing overcurrent devices at this specified height aligns with best practices in electrical safety and maintenance accessibility.