TC 89

Fire hazard testing

 

Detail

Committee
Working Groups
Project Leader

Current

Status

Frcst Pub

Date

Stability

Date

TC 89WG 12 Ine CoxPPUB2015-042025

History

Stage
Document
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AMW
89/930/MCR PDF file 20 kB
2009-07-032009-07
1CD
89/933/CD PDF file 164 kB
2009-07-032009-07
CDM
89/962/CC Word file 2192 kB
PDF file 251 kB
2009-10-162009-11
A2CD
89/962A/CC Word file 2129 kB
PDF file 263 kB
2010-01-152009-11
2CD
89/978/CD PDF file 182 kB
2010-01-152010-01
CDM
89/995/CC Word file 572 kB
PDF file 100 kB
2010-04-232010-05
A3CD
89/995A/CC Word file 805 kB
PDF file 111 kB
2010-06-252010-05
3CD
89/1019/CD PDF file 173 kB
2010-07-232010-10
A4CD
89/1042/CC Word file 270 kB
PDF file 95 kB
2011-01-282010-10
4CD
89/1050/CD PDF file 181 kB
2011-02-182011-02
ACDV
89/1065/CC Word file 192 kB
PDF file 96 kB
2011-06-172011-05
CCDV
89/1080/CDV PDF file 245 kB
PDF file 257 kB
2011-08-262011-07
NADIS
89/1108/RVC Word file 287 kB
PDF file 97 kB
2012-02-102012-04
NADIS
89/1108A/RVC Word file 291 kB
PDF file 164 kB
2012-02-102012-04
ACDV
89/1108/RVC Word file 287 kB
PDF file 97 kB
2012-02-102012-08
ACDV
89/1108A/RVC Word file 291 kB
PDF file 164 kB
2012-02-102012-08
CCDV
89/1171/CDV
PDF file 1146 kB
PDF file 1169 kB
2013-09-062013-07
AFDIS
89/1224/RVC Word file 204 kB
PDF file 121 kB
2014-06-132014-03
DECFDIS
2014-09-232014-08
RFDIS
2014-09-292014-10
CFDIS
89/1241/FDIS

2014-10-242014-12
APUB
89/1250/RVD PDF file 22 kB
2015-01-122014-12
BPUB
2015-01-132015-01
PPUB
2015-04-222015-02
  

Abstract

IEC 60695-11-20:2015 describes a test method consisting of two small-scale laboratory test procedures which is intended to compare the burning behaviour of different materials used in electrotechnical products. Vertically oriented bar specimens or horizontally oriented plate test specimens are exposed to a small flame ignition source with a nominal thermal power of 500 W. The test method uses two test specimen configurations to classify material performance. Rectangular bar-shaped test specimens are used to assess ignitability and burning behaviour, and square plate test specimens are used to assess the resistance of the test specimen to burn-through, as defined in 8.3.3. This test method only applies to materials that have been classified as V-0 or V-1 according to IEC 60695-11-10. This test method is only applicable to solid and cellular materials that have an apparent density of more than 250 kg/m3, determined in accordance with ISO 845. The method does not apply to materials that shrink away from the applied flame without igniting due to their thinness. The test method described provides classifications which may be used for quality assurance, the pre-selection of component materials of products, or to verify the required minimum flammability classification of materials used in end products. If used for pre-selection, then positive results shall be obtained at a test specimen thickness which equals the smallest thickness used in the product application. The results obtained provide some information about the behaviour of materials in service, but cannot by themselves assure safe performance in service. This second edition cancels and replaces the consolidated version of IEC 60695-11-20 published in 2003. This edition constitutes a technical revision. The main changes with respect to the first edition are as follows:
- The Part title has been modified to the singular - 500 W flame test method;
- Editorial changes have been made throughout the document for the purpose of aligning IEC 60695-11-10 with IEC 60695-11-20;
- The Introduction has been modified to clarify the description of the test method;
- The Scope has been modified for clarification;
- All occurrences of the term "fixture" have been deleted from the document;
- Preferred thickness values have been added to 7.2 and 7.3;
- 7.4.4: 'Thickness measurement' is now numbered 7.5 to which a new Table 1 - Thickness tolerances has been added;
- New Subclause 8.1.4 'Conditioning of the cotton pad' has been added;
- 8.2.3 clarifies the application of the test flame to distorted specimens;
- Explanatory notes have been added to Figures 5 and 6 and the Bibliography has been updated and references added. This basic safety publication is intended for use by technical committees in the preparation of standards in accordance with IEC Guide 104 and ISO/IEC Guide 51. Key words: Test flames,Fire Hazard, Fire Test Method

This publication is to be read in conjunction with IEC 60695-11-3:2012. The contents of the corrigendum of January 2016 have been included in this copy.

Project

IEC 60695-11-20:2015 ED2

Fire hazard testing - Part 11-20: Test flames - 500 W flame test method

 

 

Associated Documents:

89/1353/RM

PDF file 80 kB
SMB/5067/DL

PDF file 211 kB