Assertion: circuit breaker's contact | /r/CapableOf | close in the air
Facets:
value: at atmospheric pressure
type: OTHER
Source sentences:
text: In this type of circuit breaker, the contact opens and closes in the air at atmospheric pressure, these type of circuit breakers are restricted to low voltage applications or high-security installations where the risk of oil fire or oil contamination of the environment is too high to be tolerated.