The Effects of ESFAS STI Extension on the Unavailability of ESF Actuated Components

摘要

The principal conclusions from ESFAS STI extension analysis are as follows:rn1. The unavailability of the ESF actuated components increased according for the following reasons:rn1.1 The number of loop controller modulern1.2 The reliability of the component itselfrn2. In some cases, the unavailability of the ESF actuated components increased as much as 10%, but it doesn't necessarily mean that it will affect the risk of the KSNPP, because the increased unavailability may have minor effects on the CDF or LERF.