No part of a ceiling-suspended fan shall be located within how many feet horizontally from the top of a shower stall threshold?

The requirement that no part of a ceiling-suspended fan should be located within three feet horizontally from the top of a shower stall threshold is designed to ensure safety and minimize potential hazards. This distance helps to prevent any electrical hazards related to water, as placing a fan too close to a shower stall could expose electrical components to moisture, increasing the risk of shock or short circuits.

Additionally, maintaining this distance allows for better airflow while avoiding interference with the use of the shower space. The regulations are grounded in principles of both electrical safety standards and practical use within bathrooms. Ensuring that fans are installed at safe distances can also help maintain the integrity of the fan's operation and lifespan by reducing potential moisture-related damage.