IEC 62425 : 1.0

Table of Contents

FOREWORD<br>INTRODUCTION<br>1 Scope<br>2 Normative references<br>3 Terms, definitions and abbreviations <br>&nbsp;&nbsp;3.1 Definitions <br>&nbsp;&nbsp;3.2 Abbreviations<br>4 Overall framework of this standard<br>5 Conditions for safety acceptance and approval<br>&nbsp;&nbsp;5.1 The safety case <br>&nbsp;&nbsp;5.2 Evidence of quality management<br>&nbsp;&nbsp;5.3 Evidence of safety management <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.3.1 Introduction <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.3.2 Safety life-cycle <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.3.3 Safety organisation <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.3.4 Safety plan <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.3.5 Hazard log<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.3.6 Safety requirements specification<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.3.7 System/sub-system/equipment design<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.3.8 Safety reviews <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.3.9 Safety verification and validation<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.3.10 Safety justification<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.3.11 System/sub-system/equipment handover<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.3.12 Operation and maintenance<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.3.13 Decommissioning and disposal <br>&nbsp;&nbsp;5.4 Evidence of functional and technical safety<br>&nbsp;&nbsp;5.5 Safety acceptance and approval<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.5.1 Introduction <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.5.2 Safety approval process<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.5.3 After safety approval<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.5.4 Dependency between safety approvals<br>Annex A (normative) Safety integrity levels<br>Annex B (normative) Detailed technical requirements <br>Annex C (normative) Identification of hardware component <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;failure modes<br>Annex D (informative) Supplementary technical information<br>Annex E (informative) Techniques and measures for <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;safety-related electronic systems for <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;signalling for the avoidance of <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;systematic faults and the control of <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;random and systematic faults <br>Bibliography

Abstract

Applies to safety-related electronic systems (including subsystems and equipment) for railway signalling applications.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 9