What does "GFCI" stand for in electrical installations?

In electrical installations, "GFCI" stands for Ground Fault Circuit Interrupter. This device is designed to protect people from electric shock by monitoring the flow of electricity in a circuit. If it detects an imbalance in the electrical current—meaning that some of the current is flowing through an unintended path (such as water or a person)—the GFCI will cut off the power very quickly, usually within milliseconds. This rapid response helps prevent severe injuries or fatalities from electric shock.

The primary function of a GFCI is crucial in wet or damp areas such as kitchens, bathrooms, and outdoor outlets, where the risk of electric shock is higher. Understanding the function and significance of GFCIs is essential for ensuring electrical safety in commercial and residential properties alike.