IEC TS 60695-1-20:2008

FOREWORD
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

Provides guidance on the ignitability of electrotechnical products and the materials from which they are formed. It gives guidance on the principles of ignitability, the selection of appropriate test methods, and the use and interpretation of results. Has the status of a basic safety publication in accordance with IEC Guide 104.