What happens to the receptacle covers when shore power is energized?

When shore power is energized, the behavior of the receptacle covers is that opening an unused receptacle cover trips its circuit breaker (CB). This mechanism is designed for safety precautions, ensuring that when power is introduced, only the active, properly prepared receptacles can be utilized. This helps to prevent accidental shocks or electrical hazards that could occur if a receptacle that is not in use were to be accessed when power is flowing.

The system is engineered to promote safe electrical practices, ensuring that live circuits are not accessible without intentional action. This delayed accessibility to unused receptacles serves as a protective measure, thereby reducing the risk of electrical accidents in environments where shore power is utilized.