Which of the following locations would require GFCI protection for receptacles, according to the provided guidelines?

• A. Roof location
• B. Bathroom receptacle adjacent to basin in a restaurant
• C. Exterior wall receptacle in an apartment building
• D. All of these

Answer: (D)

GFCI protection is required in locations where moisture or weather can create a path for current to leak to ground, increasing the risk of shock. Outdoor and wet/damp locations are the main targets of these rules because water and electricity together are dangerous.

A receptacle on a roof is exposed to weather, so it’s treated as an outdoor location. Outdoor receptacles must be GFCI protected to quickly interrupt any ground fault.

A receptacle in a bathroom, especially one near a basin, is in a damp area where splashes or showers can occur. Bathrooms are explicitly protected by GFCI requirements to reduce the risk of shock when electrical devices are used close to water.

An exterior wall receptacle on an apartment building is another outdoor location, so it also must have GFCI protection.

Because each of these scenarios requires GFCI protection, the best answer is that all of these locations require it. You can meet this protection either with a GFCI receptacle at the outlet or with a GFCI breaker supplying the circuit.