BS EN IEC 62859:2020 PDF

1   Scope 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.

This document establishes requirements and guidance to:

– integrate cybersecurity provisions in nuclear I&C architectures and systems, which are fundamentally tailored for safety;

– avoid potential conflicts between safety and cybersecurity provisions;

– aid the identification and the leveraging of the potential synergies between safe...