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[email protected]OverviewHousingComponentsFunctionsHistoryCircuit breaker typesProtective circuitryClassificationSwitchgear for lower voltages may be entirely enclosed within a building. For higher voltages (over about 66 kV), switchgear is typically mounted outdoors and insulated by air, although this requires a large amount of space. Gas-insulated switchgear saves space compared with air-insulated equipment, although the equipment cost is higher. Oil insulated switchgear presents an oil spill hazard. Switches may be manually operated or have motor drives to allow for remote control. Wikipedia Text under CC-BY-SA licenseSF6 gas - WIKA USA
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