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3.1 Design and manufacturing requirements
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3.1.11 Equipment Information, warnings, markings and instructions
The EC Equipment Directives contain requirements relating to:
Information and information devices;
Warning devices;
Warning of residual risks;
Marking of equipment;
Instructions.
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GUIDE
1 Introduction and Scope
1.1 How the document was produced
1.2 How to use the document
1.3 Scope
2 Introduction to fuel cell systems and their associated hazards
2.1 Fuel cell systems
2.1.1 Types of fuel cell
2.1.2 Components of a fuel cell system
2.2 Hazards associated with fuel cell installation and operation
2.2.1 Hazards of fuels other than hydrogen
2.2.2 Fire and explosion hazards
2.3 Properties and characteristics of hydrogen
2.3.0 Introduction
2.3.1 Propensity to leak
2.3.2 Propensity to cause embrittlement
2.3.3 Propensity to ignite
2.3.4 Consequences of a fire / explosion
3 General and higher level requirements
3.0 Introduction
3.1 Design and manufacturing requirements
3.1.1 CE certification
3.1.2 Compliance with EC directives
3.1.3 Risk Assessment
3.1.4 Protection against mechanical hazards
3.1.5 Protection against electrical hazards
3.1.6 Protection from flammable gas appliance hazards
3.1.7 Protection against fire and explosion hazards
3.1.8 Protection against pressure related hazards
3.1.9 General health and safety requirements
3.1.10 Control system requirements
3.1.11 Equipment Information, warnings, markings and instructions
3.2 Installation requirements
3.2.0 Introduction
3.2.1 Installation location
3.2.2 Ventilation
3.2.3 Pressure systems
3.2.4 Materials selection for installation
3.2.5 Mechanical and thermal hazards
3.2.6 Slipping, tripping or falling hazards
3.2.7 Lightning protection
3.2.8 Gas venting
3.2.9 Manual handling
3.3 Regulatory approval considerations
3.3.0 Introduction
3.3.1 Building codes and regulations
3.3.2 Regulations
3.4 Operational/maintenance considerations
3.4.1 Equipment maintenance
3.4.2 Access to operating positions and servicing points
3.4.3 Isolation of energy sources
3.4.4 Operator intervention
3.4.5 Cleaning of internal parts
4 System-specific and siting considerations
4.0 Introduction
4.1 Hydrogen generation
4.1.1 Generation options
4.1.2 Standards and guidance
4.2 Hydrogen containment and piping
4.3 Siting
4.3.0 Introduction
4.3.1 General requirements for both domestic/residential and commercial/industrial installations
4.3.2 Requirements specific to commercial/industrial premises
4.3.3 Emergency planning
4.4 Explosion prevention and protection
4.4.0 Introduction
4.4.1 Prevention of explosive atmospheres
4.4.2 Avoidance of ignition sources
4.4.3 Explosion mitigation
4.5 Hydrogen sensing
4.6 Fire precautions
4.6.0 Introduction
4.6.1 Overheating
4.6.2 Fire fighting
4.6.3 Emergency plan
4.7 Interconnectivity
5 Permitting Route
5.0 Introduction
5.1 Outline approval checklist for commercial/industrial installations
5.1.1 Step 1 - risk assessment
5.1.2 Step 2 - EU Directives
5.1.3 Step 3 - national legislation
5.1.4 Step 4 - installation issues
5.1.5 Step 5 - emergency responders
5.2 Outline approval checklist for domestic/residential installations
5.2.1 Step 1 - risk assessment
5.2.2 Step 2 - EU Directives
5.2.3 Step 3 - national legislation
5.2.4 Step 4 - installation issues
5.2.5 Step 5 - emergency responders
Appendix
Appendix A1: Table of Regulations related to domestic natural gas systems
Appendix A2: Useful regulations, codes and standards
Appendix A3: Case Studies
Appendix A4: CE certification
A4.1 Check list
A4.2 Technical file
A4.3 EC declaration of conformity of the equipment
Appendix A5: Experimental Results Summary
A5. Introduction
A5. Aims and objectives of the experimental programme
A5. Description of work scope
A5. Overview of WP5 work
A5. High pressure releases
A5. Safety barrier hydrogen release interaction
A5. Catastrophic release scenarios
A5. Control and consequences of small foreseeable release scenarios
A5. Hydrogen sensor system
Appendix A6: Modelling results summary
A6. Introduction
A6. How the information should be used
A6. Aims and objectives of the modelling programme
A6. Description of the modelling scenarios
A6. Overview of WP6 Work
A6. Scenario A: High pressure releases
A6. Scenario B: small foreseeable releases
A6. Scenario C & D: Catastrophic releases
A6. Scenario E: walls and barriers
A6. References
Appendix A7: Detection techniques: commercially available technologies for hydrogen detection
A7. Introduction
A7. H2 sensors positioning
A7. Alarm levels
A7. Hydrogen sensors maintenance and calibration
A7. References
Appendix A8: Suggested Risk Assessment Methodology
Appendix A9: Abbreviations
Appendix A10: References