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IEC 61508-5 : 2.0

IEC 61508-5 : 2.0

FUNCTIONAL SAFETY OF ELECTRICAL/ELECTRONIC/PROGRAMMABLE ELECTRONIC SAFETY-RELATED SYSTEMS - PART 5: EXAMPLES OF METHODS FOR THE DETERMINATION OF SAFETY INTEGRITY LEVELS

International Electrotechnical Committee

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Table of Contents

FOREWORD<br>INTRODUCTION<br>1 Scope<br>2 Normative references<br>3 Definitions and abbreviations<br>Annex A (informative) - Risk and safety integrity -<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;General concepts<br>Annex B (informative) - Selection of methods for<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;determining safety integrity level requirements<br>Annex C (informative) - ALARP and tolerable risk<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;concepts<br>Annex D (informative) - Determination of safety integrity<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;levels - A quantitative method<br>Annex E (informative) - Determination of safety integrity<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;levels - Risk graph methods<br>Annex F (informative) - Semi-quantitative method using<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;layer of protection analysis (LOPA)<br>Annex G (informative) - Determination of safety integrity<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;levels - A qualitative method - hazardous event <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;severity matrix<br>Bibliography

Abstract

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

General Product Information

Document Type Standard
Status Current
Publisher International Electrotechnical Committee
Committee TC 65

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