標準號：IEC 62808 Edition 1.1-2018
中文標準名稱：核電廠. 具有安全重要性的儀表和控制. 隔離設備的設計和鑒定
英文標準名稱：Nuclear power plants - Instrumentation and control systems important to safety - Design and qualification of isolation devices
標準類型：F69
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：F69
國際標準分類號：27.120.20
引用標準：IEC 60709-2018;IEC/TS 61000-6-5-2001;IEC 61513-2011;IEC 62003-2009
適用范圍：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.