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A GFCI outlet, or ground fault circuit interrupter, is a specialized outlet designed to prevent electric shock in areas where water exposure is more likely. If you have noticed outlets with test and reset buttons in your kitchen or bathroom, those are GFCI outlets. Here is what they do and where they are required, from the licensed electricians at EZSMART, serving Toronto and the GTA.
A GFCI outlet constantly monitors the electrical current flowing out through the hot wire compared to what returns through the neutral wire. If there is even a very small imbalance, indicating current is leaking somewhere it should not, such as through a person, the GFCI cuts power almost instantly. This response is fast enough to significantly reduce injury during an electric shock incident.
These are code requirements under the Ontario Electrical Safety Code, though older homes may not have GFCI protection in all these locations if they have not had recent electrical updates.
GFCI outlets protect against shock from ground faults, while AFCI (arc fault circuit interrupter) breakers protect against fires caused by arcing faults in wiring. Both are safety devices, but they address different specific risks. Many modern homes now include both types in different applications.
Yes, retrofitting GFCI outlets in older homes is one of the more valuable and typically affordable electrical safety upgrades available. Quality GFCI outlets from manufacturers like Leviton or Legrand are widely available, and installation should be performed by a licensed electrician in compliance with Electrical Safety Authority standards.
Can one GFCI outlet protect several outlets on the same circuit?
Yes, a single GFCI outlet can protect other standard outlets downstream on the same circuit, which is how many kitchens and bathrooms are wired.
How often do GFCI outlets need to be replaced?
Most are recommended for replacement every 10 to 15 years, or sooner if they fail to reset properly or trip frequently without cause.
Are GFCI outlets required in every room?
No, they are specifically required in locations where water exposure is more likely, such as those listed above.
Need GFCI outlets installed or upgraded in your home? EZSMART provides licensed GFCI installation across Toronto and the GTA. Call 416-838-9006, and see what our customers say on our Google reviews page.
