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BS EN 61508-5:2010

Current
Current

The latest, up-to-date edition.

Functional safety of electrical/electronic/ programmable electronic safety related systems Examples of methods for the determination of safety integrity levels
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

30-06-2010

INTRODUCTION
1 Scope
2 Normative references
3 Definitions and abbreviations
Annex A (informative) - Risk and safety integrity - General
        concepts
Annex B (informative) - Selection of methods for determining
        safety integrity level requirements
Annex C (informative) - ALARP and tolerable risk concepts
Annex D (informative) - Determination of safety integrity
        levels - A quantitative method
Annex E (informative) - Determination of safety integrity
        levels - Risk graph methods
Annex F (informative) - Semi-quantitative method using
        layer of protection analysis (LOPA)
Annex G (informative) - Determination of safety integrity
        levels - A qualitative method - hazardous event
        severity matrix
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

Describes information on: - the underlying concepts of risk and the relationship of risk to safety integrity; and - a number of methods that will enable the safety integrity levels for the E/E/PE safety-related systems to be determined.

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.

Committee
GEL/65/1
DevelopmentNote
Supersedes 98/262289 DC and 95/208057 DC. Renumbers and Supersedes BS IEC 61508-5. 2002 Version incorporates amendment 13783 to BS IEC 61508-5 (04/2002) Also available as part of BS KIT 66. (06/2004) Supersedes 08/30193474 DC. (07/2010)
DocumentType
Standard
Pages
50
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
IEC 61508-5:2010 Identical
NF EN 61508-5 : 2011 Identical
NBN EN 61508-5 : 2010 Identical
I.S. EN 61508-5:2010 Identical
DIN EN 61508-5 : 2011 Identical
UNE-EN 61508-5:2011 Identical
EN 61508-5:2010 Identical
EN 55022:2006 Identical

PD 6686:2006 Guidance on directives, regulations and standards related to prevention of fire and explosion in the process industries
EEMUA 187 : 2013 ANALYSER SYSTEMS - GUIDE TO MAINTENANCE MANAGEMENT
EEMUA 217 : 2011 SAFE AND EFFECTIVE OPERATION OF STORAGE TANKS FOR OIL MOVEMENTS

EN 61508-1:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 1: General requirements
IEC 61511-1:2016+AMD1:2017 CSV Functional safety - Safety instrumented systems for the process industry sector - Part 1: Framework, definitions, system, hardware and application programming requirements
IEC 61508-4:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 4: Definitions and abbreviations (see Functional Safety and IEC 61508)
IEC 61508-3:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 3: Software requirements (see Functional Safety and IEC 61508)
ISO 10418:2003 Petroleum and natural gas industries Offshore production installations Analysis, design, installation and testing of basic surface process safety systems
ISO/TR 14121-2:2012 Safety of machinery — Risk assessment — Part 2: Practical guidance and examples of methods
IEC 61508-6:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 6: Guidelines on the application of IEC 61508-2 and IEC 61508-3 (see Functional Safety and IEC 61508)
IEC 61508-1:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 1: General requirements (see Functional Safety and IEC 61508)
IEC 62061:2005+AMD1:2012+AMD2:2015 CSV Safety of machinery - Functional safety of safety-related electrical, electronic and programmable electronic control systems
IEC 61508-7:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 7: Overview of techniques and measures (see Functional Safety and IEC 61508)
ISO 13849-1:2015 Safety of machinery — Safety-related parts of control systems — Part 1: General principles for design
IEC 61508-2:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 2: Requirements for electrical/electronic/programmable electronic safety-related systems (see Functional Safety and IEC 61508)
IEC 61800-5-2:2016 Adjustable speed electrical power drive systems - Part 5-2: Safety requirements - Functional
EN 61508-4:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 4: Definitions and abbreviations

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