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BS EN 60695-11-20:2015

Current
Current

The latest, up-to-date edition.

Fire hazard testing Test flames. 500 W flame test methods
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-03-2016

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Significance of the fire tests
6 Apparatus
7 Test specimens
8 Test procedure
Annex A (normative) - Detailed requirements for the
        flame application point
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

Defines 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.

This part of IEC60695 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 500W. 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 IEC60695‑11‑10 . This test method is only applicable to solid and cellular materials that have an apparent density of more than 250kg/m 3, determined in accordance with ISO845 . 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. NOTE1 Guidance on pre-selection is given in IEC60695‑1‑30 [3] 1 . NOTE2 Test results are influenced by material additives, e.g. pigments, fillers, and fire retardants, and properties such as the direction of anisotropy and the molecular mass. This basic safety publication is intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IECGuide104 and ISO/IECGuide51 . One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications. The requirements, test methods or test conditions of this basic safety publication will not apply unless specifically referred to or included in the relevant publications.

Committee
GEL/89
DevelopmentNote
Supersedes BS 2782-1.140C(1993) and 96/205851 DC (12/2003) Supersedes 09/30206613 DC. (07/2015)
DocumentType
Standard
Pages
38
PublisherName
British Standards Institution
Status
Current
Supersedes

ISO 293:2004 Plastics — Compression moulding of test specimens of thermoplastic materials
IEC 60695-1-30:2017 Fire hazard testing - Part 1-30: Guidance for assessing the fire hazard of electrotechnical products - Preselection testing process - General guidelines
EN ISO 1043-1:2011/A1:2016 PLASTICS - SYMBOLS AND ABBREVIATED TERMS - PART 1: BASIC POLYMER AND THEIR SPECIAL CHARACTERISTICS (ISO 1043-1:2011/AMD 1:2016)
IEC 60695-4:2012 Fire hazard testing - Part 4: Terminology concerning fire tests for electrotechnical products
ISO 845:2006 Cellular plastics and rubbers Determination of apparent density
EN 60695-1-10:2017 Fire hazard testing - Part 1-10: Guidance for assessing the fire hazard of electrotechnical products - General guidelines
ISO 295:2004 Plastics — Compression moulding of test specimens of thermosetting materials
ISO 13943:2017 Fire safety — Vocabulary
EN ISO 294-2:1998/A1:2005 PLASTICS - INJECTION MOULDING OF TEST SPECIMENS OF THERMOPLASTIC MATERIALS - PART 2: SMALL TENSILE BARS
EN ISO 293:2005 Plastics - Compression moulding of test specimens of thermoplastic materials (ISO 293:2004)
EN ISO 845:2009 Cellular plastics and rubbers - Determination of apparent density (ISO 845:2006)
ISO/IEC Guide 51:2014 Safety aspects Guidelines for their inclusion in standards
EN 60695-4:2012 FIRE HAZARD TESTING - PART 4: TERMINOLOGY CONCERNING FIRE TESTS FOR ELECTROTECHNICAL PRODUCTS (IEC 60695-4:2012)
EN 60695-11-3:2012 Fire hazard testing - Part 11-3: Test flames - 500 W flames - Apparatus and confirmational test methods
IEC GUIDE 104:2010 The preparation of safety publications and the use of basic safety publications and group safety publications
EN 60695-1-30:2017 Fire hazard testing - Part 1-30: Guidance for assessing the fire hazard of electrotechnical products - Preselection testing process - General guidelines
IEC 60695-11-10:2013 Fire hazard testing - Part 11-10: Test flames - 50 W horizontal and vertical flame test methods
EN ISO 295 : 2004 PLASTICS - COMPRESSION MOULDING OF TEST SPECIMENS OF THERMOSETTING MATERIALS
IEC 60695-11-3:2012 Fire hazard testing - Part 11-3: Test flames - 500 W flames - Apparatus and confirmational test methods
ISO 291:2008 Plastics Standard atmospheres for conditioning and testing
EN ISO 13943:2017 Fire safety - Vocabulary (ISO 13943:2017)
EN 60695-1-11:2015 Fire hazard testing - Part 1-11: Guidance for assessing the fire hazard of electrotechnical products - Fire hazard assessment
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
EN ISO 291:2008 Plastics - Standard atmospheres for conditioning and testing (ISO 291:2008)
IEC 60695-1-11:2014 Fire hazard testing - Part 1-11: Guidance for assessing the fire hazard of electrotechnical products - Fire hazard assessment
EN 60695-11-5:2017 Fire hazard testing - Part 11-5: Test flames - Needle-flame test method - Apparatus, confirmatory test arrangement and guidance
IEC 60695-11-5 : 2.0 FIRE HAZARD TESTING - PART 11-5: TEST FLAMES - NEEDLE-FLAME TEST METHOD - APPARATUS, CONFIRMATORY TEST ARRANGEMENT AND GUIDANCE
IEC 60695-11-5:2016 Fire hazard testing - Part 11-5: Test flames - Needle-flame test method - Apparatus, confirmatory test arrangement and guidance
ISO 1043-1:2011 Plastics — Symbols and abbreviated terms — Part 1: Basic polymers and their special characteristics
IEC 60695-1-10:2016 Fire hazard testing - Part 1-10: Guidance for assessing the fire hazard of electrotechnical products - General guidelines
ISO 16012:2015 Plastics Determination of linear dimensions of test specimens
EN ISO 294-1:2017 Plastics - Injection moulding of test specimens of thermoplastic materials - Part 1: General principles, and moulding of multipurpose and bar test specimens (ISO 294-1:2017)
EN ISO 294-3 : 2003 PLASTICS - INJECTION MOULDING OF TEST SPECIMENS OF THERMOPLASTIC MATERIALS - PART 3: SMALL PLATES

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