INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Principles of ignitability
4.1 Gases
4.1.1 Flammability limits
4.1.2 Arc fires
4.2 Liquids
4.2.1 Introduction
4.2.2 Ignition parameters
4.2.3 Insulating liquids
4.3 Solids
4.3.1 Introduction
4.3.2 Parameters affecting ignition
4.3.3 Metals
4.3.4 Carbon (graphite) and carbonaceous char
4.3.5 Reactive substances
4.3.6 Dust clouds
5 Consideration for the selection of test methods
5.1 Introduction
5.2 Fire scenario
5.3 Ignition sources
5.3.1 Internal sources
5.3.2 External sources
5.3.3 Arc ignition of materials
5.4 Types of test specimen
5.5 Test procedure and apparatus
6 Use and interpretation of results
Annex A (informative) - Examples of accidents due to
arc fires in underground hydroelectric power
plants or urban substations
Bibliography