HOLT Electricians Practice Exam

GFCI (Ground Fault Circuit Interrupter) protection is especially required for 15 and 30 ampere outlets because these outlets are commonly found in locations where there is an increased risk of electrical shock, such as bathrooms, kitchens, and outdoor areas. GFCI outlets are designed to quickly shut off power to prevent serious injuries when they detect an imbalance in electrical current, which could indicate a ground fault condition.

The National Electrical Code (NEC) specifies that GFCI protection is necessary for receptacles in areas where water is present or where the potential for moisture is high, such as near sinks, in wet or damp locations, and for outdoor use. The specified amperage ratings, particularly at 15 and 30 amperes, align with standard household and commercial outlets used for general purpose receptacles, ensuring that these more commonly utilized outlets are equipped with protection against ground faults to enhance safety.

This focus on protection in those amperage ranges helps mitigate the risk of electric shock in environments that may not be immediately associated with heavy-duty electrical equipment but still pose a significant hazard.