Assertion: sulfur hexafluoride circuit breaker | /r/ObjectUse | used as self-contained apparatus
Facets:
value: in outdoor air-insulated substations
type: LOCATION
Source sentences:
text: Sulfur hexafluoride circuit breakers may be used as self-contained apparatus in outdoor air-insulated substations or may be incorporated into gas-insulated switchgear which allows compact installations at high voltages.