gb 13626-2001-t 单一故障准则应用于核电厂安全系统

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1、ICS27.120.20F83药日中华人民共和国国家标准GB/T13626-2001单一故障准则应用于核电厂安全系统Applicationofthesinglefailurecriteriontosafetysystemsinnuclearpowerplant2001一10一24发布2002一04一01实施中华人民共和国发布国家质量监督检验检疫总局Gs/'r13626-2001目次月1舀·⋯””⋯”.⋯“.’.“⋯⋯“⋯““‘.⋯“.“‘...⋯⋯‘.⋯⋯‘⋯⋯“.⋯⋯‘...........⋯⋯‘.“.‘⋯⋯工EEE前言·····························

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3、·······································································································⋯⋯4单一故障准则·····························································································⋯⋯5要求···················································································

4、······················⋯⋯6单一故障的设计分析··························。······························⋯⋯。...·.....·..·.......⋯⋯附录A(提示的附录)参考文献························.......·.....·........·..·......................⋯⋯GB/T13626--2001前言1992年等效采用美国IEEEStd379:1977《单一故障准则应用于核电厂IE级系统》制订了GB/T13626-1992《单一故障准则应用于

5、核电厂安全级电气系统》，本标准等效采用IEEEStd379:1994，是对GB/T13626-1992的修订。本标准技术内容与GB/T13626-1992相比较，作了如下修改:1.本标准名称改为《单一故障准则应用于核电厂安全系统》。2.在“1范围”中增加了“本标准的应用必须与GB13284的要求及其规定的单一故障准则一致”的内容3.引用标准增加了GB13284-1998,GB/T7163-19994，在“3定义”中对下列定义进行了修改:a)"3.2可探测故障”定义中增加了“注”，解释f卜可探测故障的含义;b)"3.5设计基准事件”定义中的“假想事件”改为“假设始发事件”;c)"3

6、.8安全系统辅助设施”改为“3.8辅助支抖没施”;d)"3.10安全系统”定义中“注”的内容增加r“为完成安全功能的安全系统的电气部分属安全级(1E级);e)取消了“保护功能”和“安全级”定义;f)增加了"3.11执行设施”、"3.12监测指令设施”、"3.13安全组”和“3.18共享系统”四条定义;K)修改了“3.15保护动作”、"3.14安全功能”。5，对，"4单一故障准则”内容增加了“单一故障可能出现时间的说明”。6.对“5.4设计基准事件和单一故障”补充r“避免由设计基准事件引起的故障的措施”。7.对“5.5共因故障”补充了防范共因故障的内容。8.增加了“5.6共享系统”

7、，规定了单一故障准则应用干共享系统的要求。9.对有关独立性分析的6.1.4补充了“注”，对6.1.5补充了故障例子。10.对，"6.2.1通道的相互联接”作了修改。将对仪表管路分析要求独立为“6.2.6仪表管路”。11.对“6.3其他考虑”作了修改。将原来的内容规定在“6.3.1与安全系统祸合的其他系统”和"6.3.3由单一故障引起系统驱动的可能性”内。增加了“6.3.2概率评价特性”。12.根据IEEEStd379:1994"7.文献目录”，本标准增加了“附录A(提示的附录)参