What is a requirement for snap switches to be considered part of the effective ground-fault current path?

For snap switches to be considered part of the effective ground-fault current path, they must meet certain installation criteria. This means that the switches should be properly installed in a way that ensures safety and functionality within the electrical system. Proper installation may involve considerations such as the positioning of the switch, the type of wiring used, and adherence to any relevant electrical codes.

Understanding this requirement is crucial because an effective ground-fault current path is essential for ensuring that ground-fault currents can safely return to the ground. This helps prevent electrical hazards, such as short circuits and fires, making it vital for the switches involved to be installed to facilitate this path effectively. Meeting installation criteria directly influences the safety and reliability of the overall electrical system.