Abstract

A mathematical model has been developed which permits the investigation of the influence of human error during an inspection procedure on the availability of equipment used in emergency conditions. Two types of human error are considered: an error to detect failure of the equipment and an error which causes an inadvertent failure of the equipment during the inspection. The human reliability model based on THERP method is developed in the paper. Various levels of dependence between consecutive tastes are considered. An optimal inspection interval is found for exponential distribution of time to failure.

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