Air Force Tech. Sgt. Jacob Lanzer, Civil Engineer Maintenance, Inspection and Repair Team craftsman, applies grease to a high voltage circuit breaker during routine maintenance at Aviano Air Base, Italy, June 21, 2022. The frequency of inspection, maintenance and testing for circuit breakers should be one to three years, dependent upon the severity of duty encountered by the circuit breaker.

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Size: 6395px × 4263px
Photo credit: © Operation 2022 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 31, breaker, cemirt, circuit, fw, maintenance, substation, usafe