BS IEC 61508-5 : 98 AMD 13783

Name: BS IEC 61508-5 : 98 AMD 13783
Brand: BSI

Superseded

View Superseded by

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

Superseded date

15-03-2002

Published date

23-11-2012

Publisher

British Standards Institution

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DevelopmentNote	Renumbered and Superseded by BS EN 61508-5.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Status	Superseded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	BS EN 61508-5:2010
Supersedes	98/262289 DC : DRAFT JUN 1998

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)