When is it necessary to use GFCI protection?

GFCI (Ground Fault Circuit Interrupter) protection is necessary in specific areas of buildings where the risk of electrical shock is heightened due to moisture or water presence. The correct scenario highlights that GFCI protection is essential in dwelling unit kitchens and bathrooms because these areas regularly come into contact with water, creating a higher risk for ground faults.

In kitchens, outlets that could potentially be used with appliances near sinks must have GFCI protection. Similarly, in bathrooms, any outlets within the vicinity of water sources, such as sinks and showers, require GFCI devices to enhance safety. These requirements are outlined in the National Electrical Code (NEC) to help prevent accidental electrocution and to ensure safety in areas where water and electricity are in close proximity.

The other scenarios presented miss broader aspects of GFCI requirements. While commercial bathrooms also require GFCI protection, it is not exclusively mandated for such locations; there are specific standards and exceptions. Outdoor lighting does require GFCI protection if the fixtures are plugged into a receptacle, but it's not the sole location for GFCI necessity. Lastly, while wet locations require GFCI, this does not cover all instances, as GFCI can also be required in damp