For which application is a GFCI required?

A Ground Fault Circuit Interrupter, or GFCI, is specifically designed to protect against electrical shock in locations where water can come into contact with electrical circuits. The requirement for GFCIs is particularly emphasized in wet locations due to the increased risk of electric shock. In these areas, such as bathrooms, kitchens, and outdoor installations, GFCIs can detect ground faults and disconnect power quickly to prevent serious injury or death.

While GFCIs are necessary in both indoor and outdoor environments, they are especially critical in wet locations, as water increases the danger of electrical components causing shock. Understanding that GFCIs are not exclusively for one type of application but are crucial specifically in wet or damp areas allows for better safety measures in electrical installations.