リスク情報を活用した保全の合理化に向けた定量的なリスク評価の 必要性を判定する簡易スクリーニング手法の提案
Proposal of a Simple Screening Method Which Determines Necessity of Quantitative Risk Assessment for Maintenance Rationalization Using Risk Information
著者:
橋立 竜太 矢田 浩基 高屋 茂 二神 敏 山野 秀将 栗坂 健一 江沼 康弘 （JAEA）
発刊日:
公開日:
Fast ReactorLaundry SystemMaintenance RationalizationProbabilistic Risk AssessmentSystem Based Code
概要
If components can be maintained according to a target reliability of nuclear power plants, plant safety and economic efficiency could be improved by avoiding excessive or insufficient margins. This approach can rationalize the maintenance of low target reliability components and concentrate resources (people, money, and time) on the maintenance of high target reliability components. It would take a long time to evaluate the target reliability for all components in the plant by quantitatively using probabilistic risk assessment. This paper, therefore, proposed at a first step a simple screening method which determines necessity of quantitative risk assessment for maintenance rationalization using risk information. Specifically, this method was applied to determining necessity of quantitative risk assessment to the laundry system whose function has little contributor to the plant safety of nuclear power plant, and we proposed the maintenance rationalization of the laundry system.
