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NF EN 50129 : 2003
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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RAILWAY APPLICATIONS - COMMUNICATION, SIGNALING AND PROCESSING SYSTEMS - SAFETY RELATED ELECTRONIC SYSTEMS FOR SIGNALING
04-10-2021
12-01-2013
Foreword
1 Scope
2 Normative references
3 Definitions and abbreviations
3.1 Definitions
3.2 Abbreviations
4 Overall framework of this standard
5 Conditions for safety acceptance and approval
5.1 The Safety Case
5.2 Evidence of quality management
5.3 Evidence of safety management
5.4 Evidence of functional and technical safety
5.5 Safety acceptance and approval
Annex A (normative) Safety Integrity Levels
A.1 Introduction
A.2 Safety requirements
A.3 Safety integrity
A.4 Allocation of safety integrity requirements
A.5 Safety Integrity Levels
Annex B (normative) Detailed technical requirements
B.1 Introduction
B.2 Assurance of correct functional operation
B.3 Effects of faults
B.4 Operation with external influences
B.5 Safety-related application conditions
B.6 Safety Qualification Tests
Annex C (normative) Identification of hardware component failure
modes
C.1 Introduction
C.2 General procedure
C.3 Procedure for integrated circuits (including
microprocessors)
C.4 Procedure for components with inherent physical
properties
C.5 General notes concerning component failure modes
C.6 Additional general notes, concerning components with
inherent physical properties
C.7 Specific notes concerning components with inherent
physical properties
Annex D (informative) Supplementary technical information
D.1 Introduction
D.2 Achievement of physical internal independence
D.3 Achievement of physical external independence
D.4 Example of a method for single-fault analysis
D.5 Example of a method for multiple-fault analysis
Annex E (informative) Techniques and measures for
safety-related electronic systems for signaling for
the avoidance of systematic faults and the control of
random and systematic faults
Bibliography
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