IEC 61508-5:2010 ED2

Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 5: Examples of methods for the determination of safety integrity levels (see Functional Safety and IEC 61508)

Publication date:   Apr 30, 2010

General information

60.60 Standard published   Apr 30, 2010

IEC

TC 65/SC 65A

International Standard

25.040.40   Industrial process measurement and control

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Scope

IEC 61508-5:2010 provides information on the underlying concepts of risk and the relationship of risk to safety integrity (see Annex A); a number of methods that will enable the safety integrity levels for the E/E/PE safety-related systems to be determined (see Annexes C, D, E, F and G). The method selected will depend upon the application sector and the specific circumstances under consideration. Annexes C, D, E, F and G illustrate quantitative and qualitative approaches and have been simplified in order to illustrate the underlying principles. These annexes have been included to illustrate the general principles of a number of methods but do not provide a definitive account. Those intending to apply the methods indicated in these annexes should consult the source material referenced. This second edition cancels and replaces the first edition published in 1998. This edition constitutes a technical revision. It has been subject to a thorough review and incorporates many comments received at the various revision stages.

NEW! Also available: IEC Standards+ 61508:2010, containing all parts, together with a commented Redline version. Changes made in this 2nd edition are highlighted and commented by a leading world expert.

This publication is of high relevance for Smart Grid.

Life cycle

PREVIOUSLY

WITHDRAWN
IEC 61508-5:1998 ED1

WITHDRAWN
IEC 61508-5:1998/COR1:1999 ED1

NOW

PUBLISHED
IEC 61508-5:2010 ED2
60.60 Standard published
Apr 30, 2010

REVISED BY

IN_DEVELOPMENT
IEC 61508-5 ED3