Fault Tree Analysis – FTA

Fault Trees analysis is employed to assess the expected frequency of the top-events identified during top-events identification phase (case histories, HazOp, FMEA/FMECA, random ruptures, etc.).

Eidos method and instruments are listed in the Plant safety section.

Among the different analysis developed during fault-tree analysis, it is particularly relevant the time-dependent analysis because the Refinery plants are operated seamless for some years and it is interesting to evaluate how the frequency will vary during the cycle.

Eidos developes Fault Trees and Markov Chains fully compliant with IEC 61025 and IEC 61165.

Once the expected frequency of a top-event is known, Eidos applies a proprietary method to develop Event Trees Analysis – ETA.