A large tree limb was the cause of the power outage, said Tom Ridgway, interim director of the city of Griffin’s electric department.
The limb fell from a tree on North Hill Street by the old Northside Elementary School and caused a fault. When the breaker on the substation did not operate, the fault moved back toward the transmission lines.
“When the protective device opened it de-energized the power transformer and that caused an outage on three circuits,” Ridgway said Thursday.
The outage affected northeast Griffin and large portions of downtown Griffin.
The outage began at about 8:45 p.m. and all power was restored by 11:15 p.m.