Research Article
Sensitivity Study on Availability of I&C Components Using Bayesian Network
Table 2
Failure data for I&C components [
17,
23,
24].
| | ID | Failure modes | Mean | Reference |
| | TR | Pressure sensor failure | /h | IAEA-TECDOC-930 | | PT | Sensor/transmitter fail to operate (FTOP) | /d | NUREG-6928 | | AI | Analog input failure | /d | | | DI | Digital input module failure | /d | | | BP | Bi-stable fail to operate (FTOP) | /d | NUREG-6928 | | CP | Analog (pressure) processor logic module fails | /d | NUREG-5500, V.2 | | DO | Channel (pressure/temp) relay fails | /d | NUREG-5500, V.2 | | ST | Breaker shunt failure | /d | NUREG-5500, V.2 | | UV | Breaker under voltage failure | /d | NUREG-5500, V.2 | i
10 | CB | Circuit breaker fail to open/close | /d | NUREG-6928 | | CRDM | CRDM failure | /d | |
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