BS IEC 61508-5 : 98 AMD 13783
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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FUNCTIONAL SAFETY OF ELECTRICAL/ELECTRONIC/PROGRAMMABLE ELECTRONIC SAFETY-RELATED SYSTEMS - EXAMPLES OF METHODS FOR THE DETERMINATION OF SAFETY INTEGRITY LEVELS
15-03-2002
23-11-2012
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Definitions and abbreviations
Annexes
A Risk and safety integrity - general concepts
B ALARP and tolerable risk concepts
C Determination of safety integrity levels: a quantitative
method
D Determination of safety integrity levels - A qualitative
method: fisk graph
E Determination of safety integrity levels - A qualitative
method: hazardous event severity matrix
F Bibliography
Figures
1 Overall framework of this standard
A.1 Risk reduction: general concepts
A.2 Risk and safety integrity concepts
A.3 Allocation of safety requirements to the E/E/PE
safety-related systems, other technology
safety-related systems and external risk reduction
facilities
B.1 Tolerable risk and ALARP
C.1 Safety integrity allocation: example for safety-
related protection system
D.1 Risk graph: general scheme
D.2 Risk graph: example (illustrates general principles
only)
E.1 Hazardous event severity matrix: example
(illustrates general principles only)
Tables
B.1 Risk classification of accidents
B.2 Interpretation of risk classes
D.1 Example data relating to example risk graph (figure D.2)
Gives information on the underlying concepts of risk and the relationship of risk to safety integrity, together with methods for enabling the safety integrity levels for the E/E/P safety-related systems, other technology safety-related systems and external risk reduction facilities to be determined.
| Committee |
GEL/65/1
|
| DevelopmentNote |
Renumbered and Superseded by BS EN 61508-5. (04/2002)
|
| DocumentType |
Standard
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| IEC 61508-5:2010 | Identical |
| 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/IEC Guide 51:2014 | Safety aspects — Guidelines for their inclusion in standards |
| IEC GUIDE 104:2010 | The preparation of safety publications and the use of basic safety publications and group safety publications |
| 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 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) |
| 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) |
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