GB 12476.3-2007 Electrical apparatus for use in the presence of combustible dust—Part 3: Classification of areas where combustible dusts are or may be present (Text of Document is in English)

01/09/2007

31P

$100.00 USD

Contents
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Area classification for combustible dusts
4.1 General
4.2 Area classification objectives for explosive dust atmospheres
4.3 Area classification procedure for explosive dust atmospheres
5 Sources of release for explosive dust atmospheres
5.1 General
5.2 Identification of sources of release
6 Zones for explosive dust atmospheres
6.1 General
6.2 Zones for dusts 1
6.3 Examples of zones for explosive dust atmospheres
6.4 Extent of zones for explosive dust atmospheres
7 Dust layer hazard
8 Documentation
8.1 General
8.2 Drawings, data sheets and tables
Annex A (Informative) Area classification application
Annex B (Informative) Risk of fire from hot surface ignition of dust layer
Annex C (Informative) Housekeeping