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Chula Vista, Texas may refer to the following places in the U.S. state of Texas: Chula Vista, Cameron County, Texas; Chula Vista, Maverick County, Texas;
Tram switchgear This circuit breaker uses both SF 6 and air as insulation. In an electric power system, a switchgear is composed of electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment. Switchgear is used both to de-energize equipment to allow work to be done and to clear faults ...