GFCI outlet wiring

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Note: A ground-fault circuit interrupter (GFCI) is a device used to protect people from being electrocuted by faulty wiring or an electrical item that can come in contact with water and the user. GFCI devices are typically installed in areas with high humidity, such as bathrooms and kitchens, or near water sources to prevent electric shocks. The GFCI’s job is to detect when there is a difference in current between the live wire and the neutral wire. If there is a difference, the GFCI will stop power from flowing through the circuit. This can happen when someone touches both wires at once or if there’s an electrical fault on one of the wires that causes it to carry more current than the other wire.