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CENELEC
EN 50281-2-1 : 98 COR 99

EN 50281-2-1 : 98 COR 99

Current

Current

The latest, up-to-date edition.

Electrical apparatus for use in the presence of combustible dust - Part 2-1: Test methods - Methods for determining the minimum ignition temperatures of dust

Published date

08-03-1999

Publisher

European Committee for Standards - Electrical

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Method A: dust layer on a heated surface at a
    constant temperature
    4.1 Preparation of dust sample
    4.2 Test apparatus
    4.3 Procedure
    4.4 Test acceptance criteria
    4.5 Reporting of results
    4.6 Application of results
5 Method B: dust cloud in a furnace at a constant
    temperature
    5.1 Preparation of dust sample
    5.2 Test apparatus
    5.3 Procedure
    5.4 Air pressure
    5.5 Criterion for ignition
    5.6 Minimum ignition temperature of a dust cloud
    5.7 Reporting of results
Annex A (normative) Method A: Construction of a heated
                      surface and measurement of temperature
                      distribution on the surface
Annex B (normative) Construction of a constant temperature
                      furnace
Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Method A: dust layer on a heated surface at a
    constant temperature
    4.1 Preparation of dust sample
    4.2 Test apparatus
    4.3 Procedure
    4.4 Test acceptance criteria
    4.5 Reporting of results
    4.6 Application of results
5 Method B: dust cloud in a furnace at a constant
    temperature
    5.1 Preparation of dust sample
    5.2 Test apparatus
    5.3 Procedure
    5.4 Air pressure
    5.5 Criterion for ignition
    5.6 Minimum ignition temperature of a dust cloud
    5.7 Reporting of results
Annex A (normative) Method A: Construction of a heated
                      surface and measurement of temperature
                      distribution on the surface
Annex B (normative) Construction of a constant temperature
                      furnace

Defines two test methods for determining the minimum ignition temperatures of dust for the purpose of selecting electrical apparatus for use in the presence of combustible dust in accordance with EN 50281-1-2:1998 and constructed in accordance with EN 50281-1-1:1998. Not suitable for use with substances having explosive properties.

Committee
TC 31
DocumentType
Test Method
PublisherName
European Committee for Standards - Electrical
Status
Current

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ISO 4225:1994 Air quality General aspects Vocabulary
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