A feeder consists of all circuit conductors located where?

A feeder is defined as the conductors that connect the service equipment—like the main electrical panel—to the final branch-circuit overcurrent devices, which include circuit breakers or fuses serving the final loads. This definition aligns with the role of feeders in electrical systems, as they are essential for distributing power from the main service to various branch circuits or loads.

The significance of this understanding lies in recognizing that feeders are crucial for the transition of electricity from a larger source to smaller circuits that serve specific areas, ensuring that the electrical load is balanced and safely managed. Understanding this concept helps in designing efficient and safe electrical systems, ensuring that the distribution of power adheres to safety codes and regulations. The other options do not accurately represent the scope and function of feeders within electrical systems.