Power lines can be knocked down by things like storms and construction accidents. Always assume that downed power lines are energized and dangerous. Stay away and tell others to do the same. When moving away from a downed power line, shuffle your feet. This motion decreases the voltage that is able to travel through the wire, ground and into you.
Call 911 and call us at 800-662-4PWR (4797) anytime you see a downed power line.