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Working in the switchyard

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Chelan County PUD apprentice wireman Andy Botts (below), and journeyman wireman Brent Nordi work on final connections on a new 115-kilovolt circuit breaker on April 26, at the Wenatchee Switchyard, located on the corner of Worthen and Chehalis streets in Wenatchee. The new breaker uses sulfur hexafluoride gas as an extinguishing agent for the arc created when the breaker opens. This breaker replaces a 50-plus-year-old oil breaker. Gas breakers provide a benefit of less maintenance over the life of the breaker, said Chris Schwinkendorf, PUD Central Maintenance electrical superintendent.

Chelan County PUD apprentice wireman Andy Botts (below), and journeyman wireman Brent Nordi work on final connections on a new 115-kilovolt circuit breaker on April 26, at the Wenatchee Switchyard, located on the corner of Worthen and Chehalis streets in Wenatchee. The new breaker uses sulfur hexafluoride gas as an extinguishing agent for the arc created when the breaker opens. This breaker replaces a 50-plus-year-old oil breaker. Gas breakers provide a benefit of less maintenance over the life of the breaker, said Chris Schwinkendorf, PUD Central Maintenance electrical superintendent.