What type of circuits does Article 225 specifically deal with?

Article 225 of the National Electrical Code (NEC) specifically addresses outside branch circuits and feeders. This section covers the requirements and guidelines for wiring and installation practices that pertain to electrical circuits that extend beyond the primary structure of a building.

Understanding the significance of this article is important for ensuring safety and compliance when dealing with electrical installations that are exposed to outdoor conditions. These circuits typically support equipment such as lighting, signage, or other applications that are located outside buildings, meaning they must be designed and installed with considerations for environmental factors such as moisture, temperature fluctuations, and physical damage.

The specifics in Article 225 outline the necessary protections, conductors, and ratings required for outdoor installations, ensuring they function safely and effectively in a variety of conditions. This ensures that outside installations are not only compliant with regulations but also maintain operational reliability.