06/12/2026
: What is the purpose of a GFCI outlet?
A Ground Fault Circuit Interrupter (GFCI) acts as a high-speed safety sensor that continuously compares the current flowing to an appliance with the current returning. If the device detects a deviation as small as 5 milliamps—a sign that electricity may be leaking through water or a person—it instantly trips the circuit to prevent a lethal electrical shock.
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