What are "feeders" in electrical terminology?

Feeders in electrical terminology refer to conductors that are responsible for transporting electric power from a service disconnect, such as a main panel, to various branch circuit disconnects. This vital function of feeders makes them essential in an electrical distribution system, as they help distribute the electrical load efficiently throughout a facility or building.

Feeders are typically larger in size and designed to handle higher current ratings than branch circuit conductors, which supply power to individual outlets or devices. By acting as a central conduit for electricity, feeders ensure that power is safely and effectively delivered to different areas, allowing for proper operation of appliances, lighting, and equipment.

The other options focus on specific functionalities or safety features that are not defining characteristics of feeders. While emergency lighting and outdoor appliance connections are indeed important aspects of electrical systems, they pertain to specific scenarios rather than the fundamental role of feeders. Shielded wires, on the other hand, are designed to prevent electromagnetic interference and protect against physical damage, but this does not encapsulate the primary purpose of feeders in an electrical installation.