Video Spanish Version Prevent shock hazards The world of electricity is filled with acronyms and abbreviations: kW (kilowatt), AC (alternating current) and POV (peak operating voltage), to name a few. GFCI (ground fault circuit interrupter) and AFCI (arc fault circuit interrupter) are also common electrical abbreviations. GFCIs and AFCIs help protect you from electrical accidents … Continue reading Ground Fault Circuit Interrupters (GFCIs)