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One isnt necessarily better than the other and the reality is that for your safety at home you need to have both. For dwelling units in one- and two-family homes and multifamily buildings AFCI protection must be present in. Protect Your Family And Home From Electrical Fire And Shock Safety Leviton Blog It prevents electric fire. Gfci vs afci . The acronym GFCI stands for Ground Fault Circuit Interrupter. Because arcing is the primary cause of electrical fires in a home AFCI is a fire prevention device. KW MW OCV POV SW VOM to name a few. For more information on the differences between AFCIs and GFCIs consult this infographic by ESFI. The vocabulary of an electrician is full of acronyms which can quickly lead to confusion if your not an electrician yourself. From what I can tell I do not have a copy of the 2014 NEC these are the only two exceptions to the need of either a GFCI or an AFCI - for new work. This is intended at the electrical panel and just like the GFC