Are primary cables found in service boxes?

Are primary cables found in service boxes?

• A. No
• B. Yes
• C. Sometimes
• D. Not typically

Answer: (A)

Primary cables carry the high-voltage supply from the utility and sit on the utility side of the meter. They are not housed inside the building’s service box. The service box (the meter, main disconnect, and the panel with breakers) handles the low-voltage service conductors that feed the building’s branch circuits. So the path with high-voltage primary conductors ends at the meter or transformer area, not inside the service box. That’s why the statement that primary cables are found in service boxes isn’t accurate.

Primary cables carry the high-voltage supply from the utility and sit on the utility side of the meter. They are not housed inside the building’s service box. The service box (the meter, main disconnect, and the panel with breakers) handles the low-voltage service conductors that feed the building’s branch circuits. So the path with high-voltage primary conductors ends at the meter or transformer area, not inside the service box. That’s why the statement that primary cables are found in service boxes isn’t accurate.