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Recent Insights from the International Common-Cause Failure Data Exchange Project

机译：国际共因故障数据交换项目的最新见解

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Common-cause failure (CCF) events can significantly impact the availability of safety systems of nuclear power plants. For this reason, the International Common Cause Data Exchange (ICDE) project was initiated by several countries in 1994. Since 1997 it has been operated within the Organisation for Economic Co-operation and Development (OECD)/Nuclear Energy Agency (NEA) framework and has successfully been operated over six consecutive terms (the current term being 2015–2017). The ICDE project allows multiple countries to collaborate and exchange CCF data to enhance the quality of risk analyses, which include CCF modeling. As CCF events are typically rare, most countries do not experience enough CCF events to perform meaningful analyses. Data combined from several countries, however, have yielded sufficient data for more rigorous analyses. The ICDE project has meanwhile published 11 reports on the collection and analysis of CCF events of specific component types (centrifugal pumps, emergency diesel generators, motor operated valves, safety and relief valves, check valves, circuit breakers, level measurement, control rod drive assemblies, and heat exchangers) and two topical reports. This paper presents recent activities and lessons learnt from the data collection and the results of topical analysis on emergency diesel generator CCF impacting entire exposed population.
机译：常见原因故障（CCF）事件会严重影响核电厂安全系统的可用性。因此，多个国家在1994年启动了国际通用原因数据交换（ICDE）项目。自1997年以来，该项目一直在经济合作与发展组织（OECD）/核能机构（NEA）框架内开展，已成功连续六个学期（当前学期为2015–2017）运行。 ICDE项目允许多个国家进行协作和交换CCF数据，以提高包括CCF建模在内的风险分析的质量。由于CCF事件通常很少见，因此大多数国家/地区没有足够的CCF事件来执行有意义的分析。但是，来自多个国家/地区的数据合计得出的数据足以进行更严格的分析。 ICDE项目同时发布了11个报告，涉及特定组件类型（离心泵，应急柴油发电机，电动阀，安全阀和安全阀，止回阀，断路器，液位测量，控制杆驱动组件）的CCF事件的收集和分析。以及热交换器）和两个专题报告。本文介绍了最近的活动和从数据收集中汲取的经验教训，以及应急柴油发电机CCF影响整个暴露人群的主题分析结果。

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