1.1 GB/T 20438 covers those aspects to be considered when electrical/electronic/ programmable electronic systems (E/E/PESs) are used to carry out safety functions. A major objective of this standard is to facilitate the development of the national standard in application sector by the technical committees responsible for the application sector. This will allow all the relevant factors, associated with the application, to be fully taken into account and thereby meet the specific needs of the application sector. A dual objective of GB/T 20438 is to enable the development of electrical/electronic/programmable electronic (E/E/PE) safety-related systems where national standard in application sector may not exist.
Contents
Foreword I
Introduction I
1 Scope
2 Normative References
3 Definitions and Abbreviations
4 Conformance to GB/T 20438
5 Documentation
5.1 Objectives
5.2 Requirements
6 Management of Functional Safety
6.1 Objectives
6.2 Requirements
7 Overall Safety Lifecycle Requirements
7.1 General
7.2 Concept
7.3 Overall Scope Definition
7.4 Hazard and Risk Analysis
7.5 Overall Safety Requirements
7.6 Safety Requirements Allocation
7.7 Overall Operation And Maintenance Planning
7.8 Overall Safety Validation Planning
7.9 Overall installation and commissioning planning
7.10 Realisation: E/E/PES
7.11 Realisation: other technologies
7.12 Realisation: external risk reduction facilities
7.13 Overall installation and commissioning
7.14 Overall safety validation
7.15 Overall operation, maintenance and repair
7.16 Overall modification and retrofit
7.17 Decommissioning or disposal
7.18 Verification
8 Functional Safety Assessment
8.1 Objective
8.2 Requirements
Appendix A (Informative) Example Documentation Structure
A.1 General
A.2 Safety Lifecycle Document Structure
A.3 Physical Document Structure
Appendix B (Informative) Competence of Persons
Bibliography
