Which safety measure is required in areas of a house that present a higher risk of electrical shock?

Ground fault interrupters (GFIs) are specifically designed for areas of a house that have a higher risk of electrical shock, such as bathrooms, kitchens, and outdoor spaces. These devices monitor the electrical current flowing through a circuit and can detect any imbalances, which may indicate that electricity is escaping to the ground, potentially through a person who may be in contact with both a live circuit and the ground. If an imbalance is detected, the GFI quickly cuts off the power, significantly reducing the risk of electrical shock.

This safety measure is critical in high-moisture areas where the risk of electrical accidents is greater. While regular circuit breakers, surge protectors, and heavy-duty wiring serve important functions in electrical safety and performance, they do not specifically address the immediate risk of shock in wet or potentially hazardous locations the way GFIs do.