What does a Ground Fault Circuit Interrupter (GFCI) primarily protect people from?

A Ground Fault Circuit Interrupter (GFCI) is designed primarily to protect individuals from electrical shock caused by ground faults. A ground fault occurs when the electrical current unintentionally leaves its intended path and flows through a person's body to the ground due to a malfunction or insulation failure. The GFCI monitors the current flowing through the circuit and can detect any imbalance, which suggests that some of the current is escaping into the ground. When such a fault is detected, the GFCI quickly interrupts the electrical circuit, cutting off power and significantly reducing the risk of serious injury or electrocution.

This technology is particularly important in areas where electrical devices are likely to come into contact with water, such as bathrooms and kitchens, making it a crucial safety measure in healthcare settings where patients may be vulnerable. The GFCI effectively reduces the potential for electrical hazards by providing rapid response to ground faults, ensuring safety for individuals who might otherwise be at risk.