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new sf6 circuit breaker tools

The new, slimmed down and smaller 230-kV circuit breakers contain about 240 pounds of SF6, compared to 700-800 pounds in the equipment being replaced. They also are lighter-9,800 pounds vs. 27,000 pounds-and take up about a third of the former 30-foot long footprint. "The old 230-kV breakers are complicated and hard to maintain," Berner said.

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