What defines a feeder in electrical distribution?

A feeder in electrical distribution is characterized as a high priority electrical distribution supply line. This is primarily because feeders are designed to transport electricity from substations or other supply points to distribution points, such as transformers or switchgear. Their role is critical in the overall electrical system, as they handle the bulk transfer of power necessary for broader distribution to various circuits or loads.

Feeders are typically rated for higher voltage and current capacity, making them suitable for delivering large amounts of electricity efficiently. Unlike other options that imply limited use or lower capacity (such as supply lines for specific loads or emergency circuits), feeders are integral to the main infrastructure of electrical distribution, ensuring that power is reliably delivered to various areas, including residential, commercial, and industrial uses.

In contrast, lines mentioned in other choices might focus on specific applications, priorities, or load types that do not encompass the broader role of feeders within the electrical distribution framework.