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

Nuclear power plants - Instrumentation and control systems important to safety - Design and qualification of isolation devices

IEC 62808 Edition 1.1-2018 发布历史

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.

IEC 62808 Edition 1.1-2018由国际电工委员会 IX-IEC 发布于 2018-0501。

IEC 62808 Edition 1.1-2018 在中国标准分类中归属于: F69 核反应堆与核电厂核岛设备，在国际标准分类中归属于: 27.120.20 核电站、安全。

IEC 62808 Edition 1.1-2018 发布之时，引用了标准

• IEC 60709-2018 核电厂 - 对安全至关重要的仪表 控制和电力系统 - 分离*， 2018-04-18 更新
• IEC/TS 61000-6-5-2001 电磁兼容性（EMC） 第6-5部分：通用标准 发电站和变电站环境的抗扰度*， 2001-07-01 更新
• IEC 61513-2011 核电站中对于安全具有重要意义的仪表与控制装置的通用系统要求*， 2011-08-01 更新
• IEC 62003-2009 核电站.仪器装置和控制系统的安全性.电磁兼容性测试要求*， 2009-03-01 更新

* 在 IEC 62808 Edition 1.1-2018 发布之后有更新，请注意新发布标准的变化。

IEC 62808 Edition 1.1-2018的历代版本如下：

• 1970年01月 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

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标准号

IEC 62808 Edition 1.1-2018

发布日期

1970年01月

实施日期

废止日期

无

中国标准分类号

F69

国际标准分类号

27.120.20

发布单位

IX-IEC

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.