Research Article

Reliability Assessment for a Safety-Related Digital Reactor Protection System Using Event-Tree/Fault-Tree (ET/FT) Method

Table 9

Probability of the system failure on demand with the use of diversity SCMs.

CaseBase caseCase 1Case 2Case 3

CCF probability reduction0%50%75%90%
Probability of system failure1.47 × 10−67.35 × 10−73.68 × 10−71.47 × 10−7