Hivatkozási szám

MSZ EN IEC 62138:2020

Dokumentumazonosító

174155

Cím

Atomerőművek. Biztonság szempontjából fontos mérés- és irányítástechnikai rendszerek. B vagy C kategóriás funkciókat megvalósító számítógép-alapú rendszerek szoftvermeggondolásai (IEC 62138:2018)

Angol cím

Nuclear power plants. Instrumentation and control systems important to safety. Software aspects for computer-based systems performing category B or C functions (IEC 62138:2018)

Alkalmazási terület

This document specifies requirements for the software of computer-based instrumentation and control (I&C) systems performing functions of safety category B or C as defined by IEC 61226. It complements IEC 60880 which provides requirements for the software of computer-based I&C systems performing functions of safety category A. It is consistent with, and complementary to, IEC 61513. Activities that are mainly system level activities (for example, integration, validation and installation) are not addressed exhaustively by this document: requirements that are not specific to software are deferred to IEC 61513. The link between functions categories and system classes is given in IEC 61513. Since a given safety-classified I&C system may perform functions of different safety categories and even non safety-classified functions, the requirements of this document are attached to the safety class of the I&C system (class 2 or class 3). This document is not intended to be used as a general-purpose software engineering guide. It applies to the software of I&C systems of safety classes 2 or 3 for new nuclear power plants as well as to I&C upgrading or back-fitting of existing plants. For existing plants, only a subset of requirements is applicable and this subset has to be identified at the beginning of any project. The purpose of the guidance provided by this document is to reduce, as far as possible, the potential for latent software faults to cause system failures, either due to single software failures or multiple software failures (i.e. Common Cause Failures due to software). This document does not explicitly address how to protect software against those threats arising from malicious attacks, i.e. cybersecurity, for computer-based systems. IEC 62645 provides requirements for security programmes for computer-based systems.

ICS

27.120.20 Atomerőművek. Biztonság

Műszaki Bizottság

A szabvány nyelve

angol

Az érvényesség kezdete

2020-02-01

Forrás

idt IEC 62138:2018; idt EN IEC 62138:2019

Előd

MSZ EN 62138:2009

Utód

Módosítás

SZK-közlemények

Kapcsolódó európai jogszabály

A szabvány

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