Contents
Foreword
Introduction
Clause
1. Scope
2. Normative references
3. Definitions and abbreviations
3.1 Definitions
3.2 Abbreviations
4. Requirements
4.1 System requirements
4.2 System design
4.3 Interlock integrity
4.4 Interlock equipment
4.5 Documentation
4.6 Computer-based equipment
4.7 Operator actions
4.8 Power supplies
5. Test methods
5.1 Test and monitoring facilities
5.2 Automatic test aids
5.3 Self-testing and monitoring
Annex A (informative) Typical interlocks
Annex B (informative) Guidance on application of
single-channel, double-channel or multi-channel
interlocks