Article 215 is focused on which aspect of electrical systems?

Article 215 of the National Electrical Code specifically addresses feeders. Feeders are the conductors that connect the service equipment or the branch-circuit conductors to the final distribution point, often a subpanel or another similar facility. This article outlines the requirements for their installation, including appropriate sizing, ratings of equipment, ampacity, and any necessary overcurrent protection.

Understanding the role of feeders in an electrical system is crucial, as they are responsible for carrying power to different parts of a building or facility. This article helps ensure that feeders are designed and installed correctly to support the load requirements of the various branch circuits they supply, which is critical for safety and efficiency in electrical installations.

The focus on feeders distinguishes it from the other articles mentioned. For example, branch-circuits, as discussed in a different NEC article, deal with the conductors that extend from the last overcurrent protection device to the outlets. Services cover the incoming power delivery to a facility, and overcurrent protection pertains to devices that prevent excessive currents. Each of these areas is critical, but Article 215's specific focus on feeders is integral to overall electrical system design and management.