IEC 62808 Edition 1.1-2018 核电厂. 具有安全重要性的仪表和控制. 隔离设备的设计和鉴定

标准号：IEC 62808 Edition 1.1-2018
中文标准名称：核电厂. 具有安全重要性的仪表和控制. 隔离设备的设计和鉴定
英文标准名称：Nuclear power plants - Instrumentation and control systems important to safety - Design and qualification of isolation devices
标准类型：F69
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：F69
国际标准分类号：27.120.20
引用标准：IEC 60709-2018;IEC/TS 61000-6-5-2001;IEC 61513-2011;IEC 62003-2009
适用范围：This International Standard establishes requirements for the design, analysis and qualification of isolation devices used to ensure electrical independence of redundant safety system circuits, or between safety and lower class circuits, as specified in IEC 60709. This standard includes guidance on the determination of the maximum credible fault that is applied to the isolation devices. The maximum credible fault can be used as a basis for the test levels used in testing based on other standards (e. g. IEC TS 61000-6-5 or IEC 62003). This standard does not address safety or CCF issues due to functional inter-dependencies and possible interferences or CCFs that may result from signal exchange or sharing between systems or sub-systems. It also does not address design or qualification issues related to digital or programmable logic in isolation devices. For isolation devices containing digital or programmable logic, additional design and qualification requirements must be considered; these requirements are outside the scope of this standard.