Which description best matches the role of feeder and branch-circuit conductors in a building's electrical system?

• A. They supply power to various electrical loads
• B. They carry only signaling data
• C. They carry only grounding paths
• D. They supply service equipment only

Answer: (A)

Feeder and branch-circuit conductors are the paths that deliver electrical power from service equipment to loads throughout the building. They originate at the service equipment or distribution panels and extend to lighting, receptacles, appliances, and other equipment, making them responsible for supplying the energy that powers those loads. They are not meant for signaling data, which uses separate communication wiring, and they are not solely grounding paths—the grounding conductor is a separate safety conductor. They also aren’t limited to servicing only the service equipment; they continue on to feed subpanels and branch circuits that power all the loads. So the best description is that they supply power to various electrical loads.