Assertion: circuit breaker's contact | /r/HasProperty | opened in vacuum
Facets:
value: to 10
type: TEMPORAL
Source sentences:
text: When the contacts of the breaker are opened in a vacuum (10 to 10 tor), an arc is produced between the contacts by the ionization of metal vapors of contacts.
text: For example, when contacts of a breaker are opened in the vacuum, the interruption occurs at first current zero with dielectric strength between the contacts building up at a rate thousands of times higher than that obtained with other types of circuit breakers.
text: For example, when contacts of a breaker are opened in vacuum the interruption occurs at first current zero with dielectric strength between the contacts building up at a rate thousands of times higher than that obtained with other circuit breakers.
text: When the contacts of the breaker are opened in the vacuum (10^-7 to 10^-5 torr), an arc is produced between the contacts by the ionization of metal vapors of contacts.