GFCI Outlets

Ground Faulc Circuit Interruptors.

• Can be wall outlets. $9.
• Can be plug-in receptacles - [1]
• Arc Fault Circuit Interruptors (AFCI) are another thing - [2]
• Note that GFCI outlets sense differential current, and they are not grounded - [3]
• Portable GFCI - GFCI on a power cord - [4]
• Is GFCI safer than a ground pin? Yes, in case a part of an appliance is not grounded. How a ground works - [5]. Also - just because there is a ground pin - it doesn't mean that it is connected or that it is connected properly.
• A GFCI outlet is quite complex - with its own circuitry. See teardown and explanation - [6]
• GFCI chip from On Semi - [7]