Article 215 is focused on which aspect of electrical systems?

Article 215 of the National Electrical Code (NEC) specifically addresses feeders. Feeders are the conductors that connect the output of a service equipment to the branch circuits in a building or structure. This article covers the requirements necessary for the safe installation and functioning of feeders, focusing on their construction, sizing, and overcurrent protection.

Understanding the provisions in Article 215 is essential for ensuring that feeders are adequately designed to handle the expected load without overheating or becoming unsafe. This includes guidance on conductor materials, insulation types, and installation methods. The proper application of these guidelines helps maintain both the efficiency and safety of the electrical system, reducing the risks of electrical faults and potential hazards.

In contrast, the other articles mentioned in the choices address different aspects of electrical installations. While branch circuits relate to the distribution of power within a building, services concern the initial supply of electrical power from the utility to the building. Overcurrent protection deals with methods to protect circuits from overload situations. Each article serves a unique purpose, but Article 215's focus on feeders specifically addresses the critical pathway of electrical distribution that connects service equipment to branch circuits.