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EN 50268-2:1999

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Common test methods for cables under fire conditions - Measurement of smoke density of cables burning under defined conditions - Part 2: Procedure

Published date

23-09-1999

Superseded date

01-08-2005

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Summarise this standard

Foreword
1 Scope
2 Normative references
3 Definitions
4 Test apparatus
5 Test assembly
      5.1 Cable test pieces
      5.2 Cable selection and assembly
      5.3 Positioning of test pieces
6 Test procedure
7 Evaluation of test results
8 Retest procedure
Annex A (informative) Guidance on calculation of absorbance
Annex B (informative) Recommended performance requirements

EN 50268 specifies a method of test for measurement of smoke density of cables burning under defined conditions. It is suitable for electric insulated conductor or cable, or optical cables. Part 1 specifies the apparatus and Part 2 specifies procedure. This standard includes an Informative Annex of recommended requirements for compliance. NOTE: Experience has shown that the test protocol is not suitable for some cables that exceed 70 mm overall diameter. In such cases the manufacturer should be consulted

Committee
CLC/TC 20
DevelopmentNote
Supersedes HD 606.2. (03/2004)
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Superseded
Supersedes

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