Which of the following best describes service-entrance conductors?

• A. Conductors that run from the meter to the main service equipment
• B. Conductors that run from the service equipment to outlets
• C. Conductors that run from the service equipment to subpanels
• D. Conductors that run from the power source to the building frame

Answer: (A)

Service-entrance conductors are the wires that bring electrical power from the utility into the building, running from the electric meter to the main service equipment (the main disconnect or main panel). This is the point where the utility’s supply is connected to the building’s wiring and where overcurrent protection is located. They are not branch circuit conductors that feed outlets from the main panel, nor feeders that carry power from the main panel to subpanels. They also aren’t just a generic path from the power source to the building frame. The defining path is from the meter to the main service equipment, which is why this description best fits service-entrance conductors.