IEC 60695-11-20:2015
Fire hazard testing - Part 11-20: Test flames - 500 W flame test method

Standard No.

IEC 60695-11-20:2015

Release Date

2015

Published By

International Electrotechnical Commission (IEC)

Status

Be replaced 2016-01

Replace By

IEC 60695-11-20:2015/COR1:2016

Latest

IEC 60695-11-20:2015/COR1:2016

Replace

IEC 89/1241/FDIS:2014 IEC 60695-11-20:1999 IEC 60695-11-20 Corrigendum 1:2000 IEC 60695-11-20 AMD 1:2003 IEC 60695-11-20 Edition 1.1:2003

Scope

This part of IEC 60695 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. NOTE 1 Guidance on pre-selection is given in IEC 60695-1-30 [3]1. NOTE 2 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 IEC Guide 104 and ISO/IEC Guide 51. 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. 1 Numbers in square brackets refer to the bibliography.

IEC 60695-11-20:2015 Referenced Document

• IEC 60695-11-10:2013 Fire hazard testing.Part 11-10: Test flames.50 W horizontal and vertical flame test methods
• IEC 60695-11-3:2012 Fire hazard testing - Part 11-3: Test flames - 500 W flames - Apparatus and confirmational test methods
• IEC 60695-4:2012 Fire hazard testing - Part 4: Terminology concerning fire tests for electrotechnical products
• IEC Guide 104:2010 The preparation of safety publications and the use of basic safety publications and group safety publications (Edition 4.0)
• ISO 291:2008 Plastics - Standard atmospheres for conditioning and testing
• ISO 293:2004 Plastics - Compression moulding of test specimens of thermoplastic materials
• ISO 294-1:1996 Plastics - Injection moulding of test specimens of thermoplastic materials - Part 1: General principles, and moulding of multipurpose and bar test specimens
• ISO 294-2:1996 Plastics - Injection moulding of test specimens of thermoplastic materials - Part 2: Small tensile bars
• ISO 294-3:2002 Plastics - Injection moulding of test specimens of thermoplastics materials - Part 3: Small plates
• ISO/IEC Guide 51:2014 Safety aspects - Guidelines for their inclusion in standards

IEC 60695-11-20:2015 history

• 2016 IEC 60695-11-20:2015/COR1:2016 Fire hazard testing - Part 11-20: Test flames - 500 W flame test method (Edition 2.0)
• 2015 IEC 60695-11-20:2015 Fire hazard testing - Part 11-20: Test flames - 500 W flame test method
• 2003 IEC 60695-11-20:1999/AMD1:2003 Fire hazard testing - Part 11-20: Test flames; 500 W flame test methods; Amendment 1
• 2003 IEC 60695-11-20:2003 Fire hazard testing - Part 11-20: Test flames; 500 W flame test methods
• 2000 IEC 60695-11-20:1999/COR1:2000 Fire hazard testing - Part 11-20: Test flames - 500 W flame test methods; Corrigendum 1
• 1999 IEC 60695-11-20:1999 Fire hazard testing - Part 11-20: Test flames; 500 W flame test methods