Where GFCI Should Outlets Be in Your Home and Why
Ground fault circuit interrupters (GFCIs) are a critical safety component in a wide range of household electrical applications. If you’ve ever seen an outlet that had two small buttons between the two sockets on the panel, then there’s a good chance you’ve seen a GFCI outlet. It’s important to understand what a GFCI does, where such outlets belong in your home, and why. This will help you make better decisions about how GFCI systems fit into your home’s overall electrical system. What Does a GFCI Do? A ground fault circuit interrupter measures the electrical current that runs between a hot wire and a neutral one. The current should be balanced between the two wires, and the presence of any noticeable imbalance is a sign that something is wrong. This triggers a fault and causes the GFCI to turn off the circuit. While this might sound a bit like what the circuit breaker does, there are a few notable differences. A circuit breaker doesn’t detect the ground condition. Instead, it simply measures the load and shuts off the circuit if there is too much load. A GFCI system detects when the electrical current is out of balance because something is taking...
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