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Lasers Help Power Companies Find Good Vibrations

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Dan Drollette

Electric power companies may soon have a faster, safer and more effi-cient means for checking the wooden crossarms that support many high-voltage transmission power lines: a helicopter-mounted HeNe laser beam. Power companies now conduct yearly checks for weaknesses in their transmission lines by employing a team of helicopter-borne observers to fly alongside their rights-of-way for hundreds of miles. To see damaged insulator strings, bad splices or other problems, these aircraft routinely hover 20 to 30 feet away from 46,000-V transmission lines. But to inspect the condition of the...Read full article

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    Published: September 2000
    Research & TechnologyTech PulseLasers

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