What safety concern does the design of receptacle faces mitigate?

The design of receptacle faces primarily mitigates improper device connection. This is crucial because receptacles are built to ensure that plugs can be inserted correctly, aligning the prongs with the corresponding slots to prevent reverse connections. By having a specific orientation, the receptacle helps ensure that electrical devices are connected in a way that minimizes the risk of short circuits or electrical faults that can occur if a device is improperly connected.

This design feature adds a layer of safety by preventing users from accidentally connecting devices in a way that could cause damage or create hazardous situations. Moreover, in order to enhance user comfort and safety, many receptacles also incorporate features like polarized slots, which further reduce the risk of improper connections.

While other safety concerns such as high voltage exposure, mechanical failure, or overcurrent conditions are important in electrical design, they are addressed through different means, such as circuit breakers, insulation materials, and junction box designs, rather than directly through the receptacle face design.