Which is a requirement for outdoor receptacles according to the NEC?

Outdoor receptacles must have GFCI (Ground Fault Circuit Interrupter) protection to enhance safety in wet or damp environments. GFCI devices are designed to cut off electrical power when they detect an imbalance in the electrical current, which can occur if there is a ground fault, such as water coming into contact with the electrical connections or devices plugged into the receptacle. This is crucial for preventing electrical shock and ensuring the safety of individuals using outdoor electrical equipment.

In addition to GFCI protection, NEC (National Electrical Code) stipulates that outdoor receptacles must be weatherproof, and appropriate covers must be used to protect against moisture and other environmental factors. These safety requirements are in place to minimize risks associated with outdoor electrical installations.