本文件提供了一个框架，用于管理核电厂（NPP）系统的安全和网络安全之间的相互作用，同时考虑了解决这些问题的当前SC 45A标准以及核仪控可编程数字系统的具体情况。 注:在本文件中（如IEC 62645所述），网络安全与预防、检测和应对 通过数字手段实施的恶意行为（网络攻击）。在这种情况下，它不包括与非恶意行为和事件有关的考虑因素，例如意外故障、自然事件或人为错误（有损网络安全的除外）。这些方面当然至关重要，但其他SC 45A文件和标准涵盖了这些方面，本文件不认为这些方面与网络安全相关。 交叉引用:IEC 62645:2014IEC 60709:2004IEC 61513:2011IEC 60880:2006IEC 62566:2012IEC 62340IEC 62138:2004IEC 61500:2009CSA N290。7:2014IEC 61508-4IAEA INSAG-241:2012GS-G-3.5:2009IAEA安全指南SSG-34GS-R-3:2006IAEA安全指南SSG-39IEEE 7-4.3.2-2010IAEA安全指南SSG-30ISA TR84。00.09-2013IEC 61508-1GS-G-3.1:2006IEC 62443IEC 61508-2IEC 61508-3包含以下内容:修订，2019年11月

This document provides a framework to manage the interactions between safety and cybersecurity for nuclear power plant (NPP) systems, taking into account the current SC 45A standards addressing these issues and the specifics of nuclear I&C programmable digital systems. NOTE In this document (as in IEC 62645), cybersecurity relates to prevention of, detection of, and reaction to malicious acts perpetrated by digital means (cyberattacks). In this context, it does not cover considerations related to non-malevolent actions and events such as accidental failures, natural events or human errors (except those degrading cybersecurity). Those aspects are of course of prime importance but they are covered by other SC 45A documents and standards, and are not considered as cybersecurity related in this document.Cross References:IEC 62645:2014IEC 60709:2004IEC 61513:2011IEC 60880:2006IEC 62566:2012IEC 62340IEC 62138:2004IEC 61500:2009CSA N290.7:2014IEC 61508-4IAEA INSAG-241:2012GS-G-3.5:2009IAEA Safety Guide SSG-34GS-R-3:2006IAEA Safety Guide SSG-39IEEE 7-4.3.2-2010IAEA Safety Guide SSG-30ISA TR84.00.09-2013IEC 61508-1GS-G-3.1:2006IEC 62443IEC 61508-2IEC 61508-3Incorporates the following:Amendment, November 2019