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AS
AS 61508.5-1999

AS 61508.5-1999

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

26-06-2021

Superseded by

AS 61508.5-2011

Language(s)

English

Published date

01-01-1999

Publisher

Standards Australia

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Hardcopy - English
PDF 1 User - English
PDF 3 Users - English
PDF 5 Users - English
PDF 9 Users - English
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1 - AS 61508.5-1999 FUNCTIONAL SAFETY OF ELECTRICAL/ELECTRONIC/PROGRAMMABLE ELECTRONIC SAFETY-RELATED SYSTEMS - EXAMPLES OF ...
4 - PREFACE
5 - CONTENTS
6 - INTRODUCTION
9 - 1 Scope
11 - 2 Normative references
11 - 3 Definitions and abbreviations
12 - Annex A - Risk and safety integrity – General concepts
12 - A.1 General
12 - A.2 Necessary risk reduction
13 - A.3 Role of E/E/PE safety-related systems
13 - A.4 Safety integrity
16 - A.5 Risk and safety integrity
16 - A.6 Safety integrity levels and software safety integrity levels
16 - A.7 Allocation of safety requirements
18 - Annex B - ALARP and tolerable risk concepts
18 - B.1 General
18 - B.2 ALARP model
21 - Annex C - Determination of safety integrity levels: a quantitative method
21 - C.1 General
21 - C.2 General method
22 - C.3 Example calculation
24 - Annex D - Determination of safety integrity levels – A qualitative method: risk graph
24 - D.1 General
24 - D.2 Risk graph synthesis
25 - D.3 Other possible risk parameters
25 - D.4 Risk graph implementation: general scheme
26 - D.5 Risk graph example
29 - Annex E - Determination of safety integrity levels – A qualitative method: hazardous event severity matrix
29 - E.1 General
29 - E.2 Hazardous event severity matrix

Provides information on the concepts and relationship of risk to safety integrity together with methods of determining safety integrity levels. The Standard is identical with and has been reproduced from IEC 61508-5:1998.

Committee
IT-006
DocumentType
Standard
ISBN
0 7337 2876 6
Pages
23
PublisherName
Standards Australia
Status
Superseded
SupersededBy
Supersedes
UnderRevision

Standards Relationship
IEC 61508-5:1998 Identical

First published as AS 61508.5-1999.

AS 61508.4-1999 Functional safety of electrical/electronic/programmable electronic safety-related systems - Definition and abbreviations
AS 61508.1-1999 Functional safety of electrical/electronic/programmable electronic safety-related systems - General requirements

AS 61508.2-2001 Functional safety of electrical/electronic/programmable electronic safety-related systems - Requirements for electrical/electronic/programmable electronic safety-related systems
AS 4024.1501-2006 Safety of machinery Design of safety related parts of control systems - General principles for design (Reconfirmed 2014)
AS/NZS 4240.2:2009 Remote control systems for mining equipment Operation and maintenance for underground metalliferous mining (Reconfirmed 2021)
AS 61508.0-2006 Functional safety of electrical/electronic/programmable electronic safety-related systems Functional safety and AS 61508 (Reconfirmed 2015)
AS/NZS 4024.1:2006 Series Safety of machinery Safety of machinery series
AS 3814-2005 Industrial and commercial gas-fired appliances
AS 1210-2010 Pressure vessels (Reconfirmed 2021)
AS 4024.1202-2006 Safety of machinery General principles - Technical principles
AS 4722-2009 Passenger ropeways and passenger conveyors
AS/NZS 2290.1:2005 Electrical equipment for coal mines - Introduction and maintenance - For hazardous areas
AS/NZS 2081.1:2002 Electrical equipment for coal and shale mines - Electrical protection devices - General requirements
AS 61508.6-2001 Functional safety of electrical/electronic/programmable electronic safety-related systems - Guidelines on the application of AS 61508.2 and AS 61508.3
AS 60204.11-2006 Safety of machinery - Electrical equipment of machines Requirements for HV equipment for voltages above 1000 V a.c. or 1500 V d.c and not exceeding 36 kV (IEC 60204-11, Ed. 1.0 (2000) MOD)
AS 60204.1-2005 Safety of machinery - Electrical equipment of machines General requirements (IEC 60204-1, Ed. 5 (FDIS) MOD)
AS 3533.1-2009 Amusement rides and devices Design and construction
AS 4024.1502-2006 Safety of machinery Design of safety related parts of control systems - Validation (Reconfirmed 2014)
AS/NZS 3788:2006 Pressure equipment - In-service inspection (Reconfirmed 2017)
AS IEC 61131.8-2004 Programmable controllers - Guidelines for the application and implementation of programming languages
AS 61508.7-2001 Functional safety of electrical/electronic/programmable electronic safety-related systems - Overview of techniques and measures
AS/NZS 4871.6:2007 Electrical equipment for coal mines, for use underground Diesel powered machinery and ancillary equipment
AS 61508.4-1999 Functional safety of electrical/electronic/programmable electronic safety-related systems - Definition and abbreviations
AS/NZS 1826:2008 Electrical equipment for explosive gas atmospheres - Special protection - Type of protection ‘s’

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