Some large appliances need additional electrical current to function properly, so a 20-amp outlet is often necessary. The different shape of the slot means you can't accidentally plug high-power ...
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GFCI vs. AFCI Outlets: What’s the Difference?
A GFCI outlet (receptacle) protects against electric shock by monitoring the electrical current flowing through the GFCI. If there's even a tiny difference (4 to 6 milliamps) between the hot and ...