How many outdoor receptacles are required at a dwelling unit?

The requirement for outdoor receptacles in dwelling units is typically based on the need to ensure safety and convenience for outdoor electrical use. In general, the National Electrical Code (NEC) specifies that at least two 15- or 20-ampere, 120-volt outdoor receptacles are required for dwelling units. This provision is made to accommodate a variety of outdoor uses, such as operating landscaping equipment, using holiday lighting, or powering outdoor grills and other electrical devices.

Having two outdoor receptacles allows for better distribution of electrical power and reduces the likelihood of overloading a single receptacle. Availability of multiple receptacles also minimizes the need for long extension cords that can pose tripping hazards or increase the risk of electrical fires. This requirement enhances the overall functionality and safety of the electrical system in a dwelling unit.

The reasoning behind not needing just one receptacle is tied to the potential demand for outdoor electrical services, and having only one could lead to accessibility issues and electrical load concerns. Therefore, the requirement for two outdoor receptacles is a safety measure aimed at encouraging best practices in electrical installations for residential spaces.