About 3,000 customers were without power in downtown San Luis Obispo starting at 9:30 a.m. today, with power expected to be restored by 10:45 to 11 a.m., according to a Pacific Gas & Electric Co. spokeswoman.
The outage caused drivers along Marsh Street to maneuver downtown intersections without the assistance of stoplights, and some businesses operated in the dark.
The incident followed a report that a mylar-style balloon had struck power lines near Buchon Street.
PG&E Spokeswoman Sharon Gavin said the problem will be solved before there is an investigation into its cause. But she said the combination metallic-polyester balloons have enough metal in them to conduct electricity.
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“Mylar balloons frequently cause outages even if they don’t hit the wire,” she said. “They can cause an arc to go between the wires.”