Firefighters were dispatched to the 100 block of W. Edgewood Drive around 8:30 a.m. The road is near North Roxboro Street - north of Interstate 85.
The cable was taken off the bus and it continued on its way.
Just last month, more than a dozen students were evacuated from a school bus when it backed into a pole, bringing live electric wires down on the vehicle. No one was hurt.