Assertion: circuit breaker | /r/CapableOf | perform vital role
Facets:
value: in protecting expensive equipment
type: OTHER
Source sentences:
text: Circuit breakers perform a vital role in protecting expensive equipment from damage through faults i.e. connecting and disconnecting the electrical power in a reliable way; this requires proving their reliability with on field tests during installation and with regular maintenance tests during its lifetime to prevent costly failures and problems that could even compromising the safety of the substation.