GB/T 21562.2-2015 Translated English of Chinese Standard. (GBT 21562.2-2015, GB/T21562.2-2015, GBT21562.2-2015): Railway applications - Specification and demonstration of reliability, availability, maintainability and safety (RAMS) - Part 2: Guide to the application for safetyhttps://www.chinesestandard.net, 2018 M06 2 - 183 pages This part of GB/T 21562 gives guidance on the safety process requirements of railway application systems specified in GB/T 21562-2008 and on the specific issues involved in the safety activities at various stages of the system life cycle (see 1.3). This part applies to all systems covered by the scope of GB/T 21562-2008. This part assumes that users are familiar with safety issues, but GB/T 21562-2008 lacks detailed guidance on certain safety issues. |
Contents
| 5 | |
| 20 | |
Application guidelines for functional safety functional safety requirements | 49 |
Guidelines for risk acceptance principle | 88 |
Basic element guide related to safety proof documents safety arguments | 95 |
Appendix A Informative Steps of risk assessment process | 112 |
Appendix B Informative Hazard checklist at the railway application system | 127 |
Informative Risk category classification method | 137 |
Event tree analysis | 154 |
Fault tree analysis | 156 |
Risk map method | 157 |
Other analysis techniques | 158 |
Guide for deterministic method and probabilistic method | 159 |
Selection of tools and methods | 162 |
Appendix F Informative Graphical representation of availability concepts | 164 |
Appendix G Informative Example of establishing risk acceptance criteria | 166 |
Appendix E Informative Technology and methods | 148 |
Fast rating analysis | 149 |
Structured assumption analysis | 150 |
HAZOP | 151 |
Status transition diagram | 152 |
Failure mode effect and criticality analysis FMECA | 153 |
Copenhagen subway | 170 |
Appendix H Informative Example of safety argument overview | 172 |
Signal | 175 |
Infrastructure | 178 |
References | 181 |
Common terms and phrases
accident ALARP analyze application safety arguments application system level apportionment C-hazard checklist clause components cycle defined definition describe determine documents effect electromagnetic interference environment example factors failure mode failure rate Fault tree analysis FMEA FMECA frequency and consequences functional safety requirements GAMAB GB/T guidance hazard analysis hazard control hazard identification hazard record HAZOP identify hazards impact implementation Inappropriate isolation interface level crossing loss measures occurrence operation and maintenance organizations/entities overall risk Overview passengers performance Petri net prediction probabilistic probabilistic methods procedures qualitative risk assessment quantitative risk railway application system random failure reduce relevant responsible risk assessment process risk level risk model risk rating risk reduction safety assessor safety certification safety integrity safety integrity level safety objectives safety plan safety-related stage standards structure subsystem system boundaries system safety systematic failure Table target technical safety tolerance train updated yuan