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Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

BS EN 62502 - ANALYSIS TECHNIQUES FOR DEPENDABILITY - EVENT TREE ANALYSIS

Available format(s)

Hardcopy , PDF

Superseded date

06-30-2011

Language(s)

English

1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and acronyms
5 General description
6 Benefits and limitations of Event Tree Analysis
   6.1 Benefits
   6.2 Limitations
7 Relationship with other analysis techniques
   7.1 Combination of Event Tree Analysis and Fault
        Tree Analysis
   7.2 Layer of Protection Analysis (LOPA)
   7.3 Combination with other techniques
8 Development of event trees
   8.1 General
   8.2 Steps in Event Tree Analysis
        8.2.1 Procedure
        8.2.2 Step 1: Definition of the system or
              activity of interest
        8.2.3 Step 2: Identification of the initiating
              events of interest
        8.2.4 Step 3: Identification of mitigating factors
              and physical phenomena
        8.2.5 Step 4: Definition of outcomes and quantification
        8.2.6 Step 5: Analysis of the outcomes
        8.2.7 Step 6: Uses of Event Tree Analysis Results
9 Evaluation
   9.1 Preliminary remarks
   9.2 Qualitative analysis - Managing dependencies
        9.2.1 General
        9.2.2 Functional dependencies
        9.2.3 Structural or physical dependencies
   9.3 Quantitative analysis
        9.3.1 Independent sequence of events
        9.3.2 Fault tree linking and Boolean reduction
10 Documentation
Annex A (Informative) - Graphical representation
Annex B (Informative) - Examples
   B.1 Fire incident in a nuclear power plant
        B.1.1 Introduction
        B.1.2 Screening analysis
        B.1.3 Quantitative analysis
        B.1.4 Results
   B.2 Event Tree Analysis for a level-crossing system
        B.2.1 Symbols and acronyms
        B.2.2 Objective
        B.2.3 System definition
        B.2.4 Hazard identification
        B.2.5 Event Tree Analysis
        B.2.6 Quantitative analysis
        B.2.7 Analysis of the outcomes and definition of
              necessary action
        B.2.8 Conclusion
   B.3 Fault tree linking and Boolean reduction
Bibliography

BS EN 62502

Committee
DS/1
DocumentType
Draft
Pages
46
PublisherName
British Standards Institution
Status
Superseded
SupersededBy

IEC 61025:2006 Fault tree analysis (FTA)
IEC 62425:2007 Railway applications - Communication, signalling and processing systems - Safety related electronic systems for signalling
IEC 62551:2012 Analysis techniques for dependability - Petri net techniques
IEC 60812:2006 Analysis techniques for system reliability - Procedure for failure mode and effects analysis (FMEA)
IEC 62429:2007 Reliability growth - Stress testing for early failures in unique complex systems
IEC 61078:2016 Reliability block diagrams
IEC 61165:2006 Application of Markov techniques
IEC 61511-3:2016 Functional safety - Safety instrumented systems for the process industry sector - Part 3: Guidance for the determination of the required safety integrity levels
IEC 60300-3-1:2003 Dependability management - Part 3-1: Application guide - Analysis techniques for dependability - Guide on methodology
IEC 61703:2016 Mathematical expressions for reliability, availability, maintainability and maintenance support terms
IEC 60300-3-9:1995 Dependability management - Part 3: Application guide - Section 9: Risk analysis of technological systems
IEC PAS 62508:2007 Guidance on human factors engineering for system life cycle applications
ISO 3534-1:2006 Statistics — Vocabulary and symbols — Part 1: General statistical terms and terms used in probability

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