GFCI stands for “ground fault circuit interrupter”. GFCI protection is required in damp or wet locations, areas with unfinished floors, kitchen counter tops, bathrooms, near sinks or wet bar sinks and outdoor outlets. GFCI devices actually monitor the current flow or power being used when a device, appliance, etc. is plugged in. Anytime a current imbalance is detected the GFCI will shut itself off for your safety. In an electrical circuit the power in and power out should be balanced. When an imbalance occurs it’s similar to a leak in plumbing. However in this case the leak is not water but electricity leaking to ground and the ground could be you and instead of getting wet the electricity leak can cause shock, electrocution or fire. Electricity is always looking for the quickest path to ground. In an ideal electrical circuit there will be a safe path to ground for the electricity to return to but occasionally the path is compromised and that’s when the danger occurs.
Occasionally GFCI’s can become defective and not function properly, or not work at all. It is important to check your GFCI for proper operation. To check this there is a test and reset button on all GFCI devices. Some homes may have a GFCI circuit breaker installed instead of a receptacle. These will be located in your electrical panel or breaker box (some people call them different things). In older homes GFCI devices were not required. It is not a requirement to install GFCI protection on older homes unless adding a new circuit in these areas, as I said, not required, but a very good idea to have them installed in the appropriate locations. GFCI protection can be installed on the older two wire wiring installed in the older homes as well. There are stickers sold with each GFCI stating “no grounding conductor present” this is a code requirement for installing GFCI’s on two wire systems. This is a much safer option than the adapters sold at the dollar store if you need a three wire outlet.
It’s a good idea to become familiar with the location and operation of your GFCI devices. If you have any questions please feel free to call or email.
GFCI receptacle
GFCI circuit breaker
