Two men man the EPB Fiber Optic control room.
EPB officials were still trying to figure out Tuesday what caused a 46,000-volt transmission line to catch fire and knock out power Monday night to 15,188 customers in south Chattanooga, East Ridge and north Georgia.
The fire occurred on a transmission line off 37th Street in Chattanooga, EPB spokesman John Pless said.
"There was a fire on that 46,000-volt line," Pless said. "The line itself can actually burn. You're talking about an extremely intense hot fire."
"The smart grid is providing lots of data that we can go back and investigate," he said.
Read more in tomorrow's Times Free Press.