BS EN 60695-11-20:2015描述了由两个小型实验室试验组成的试验方法 旨在比较燃烧过程中使用的不同材料的燃烧性能的程序 电工产品。垂直定向的棒材试样或水平定向的板材试验 将试样暴露在标称热功率为的小型火焰点火源中 500 W。该试验方法使用两种试样配置对材料进行分类 表演矩形条形试样用于评估可燃性和稳定性 燃烧行为和方板试样用于评估材料的耐燃性 按照8.3.3中的定义，将试样烧穿。本试验方法仅适用于材料 已根据IEC 60695分类为V-0或V-1的- 11-10.本试验方法仅适用于具有表面活性的固体和多孔材料 密度大于250 kg/m3，根据ISO 845测定。这种方法确实有效 不适用于收缩远离火焰而不会因燃烧而着火的材料 瘦。所述试验方法提供了可用于质量保证的分类， 预先选择产品的组成材料，或验证所需的最低要求 最终产品所用材料的易燃性分类。如果用于预选，则 应在试样厚度等于最小厚度时获得阳性结果 产品应用中使用的厚度。所获得的结果提供了有关在役材料性能的一些信息，但 不能单独保证在使用中的安全性能。注1:IEC 60695-1-30[3]1给出了预选指南。注2:试验结果受材料添加剂（例如颜料、填料和阻燃剂）以及各向异性方向和分子质量等性能的影响。本基本安全出版物供技术委员会在编制 符合IEC指南104中规定原则的标准，以及 ISO/IEC指南51。技术委员会的职责之一是，在适用的情况下，利用 基本安全出版物的编制。要求、测试 除非特别说明，否则本基本安全出版物的方法或试验条件不适用 相关出版物中提及或包含的。 参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考参考60695（11）11 11-11-11-11-10 10 10 10 10 10 10 10 10，6066069 9 9 9 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 9 9 9 9 9 9 9 9 9 9 9 9 9 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10-10:2009EN 60695-1-10:2010IEC 60695-1-11:2010EN60695-1-11:2010IEC 60695-1-30:2008EN 60695-1-30:2008IEC 60695-11-5:2004EN 60695-11-5:2005ISO 1043-1:2011EN ISO 1043-1:2011ISO 5725-2:1994购买本文件时提供的所有当前修改件均包括在内。

BS EN 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.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.Cross References:IEC 60695-4:2012EN 60695-4:2012IEC 60695-11-3EN 60695-11-3IEC 60695-11-10EN 60695-11-10IEC Guide 104ISO/IEC Guide 51ISO 291EN ISO 291ISO 293EN ISO 293ISO 294-1:1996EN ISO 294-1:1998ISO 294-2:1996EN ISO 294-2:1998ISO 294-3:1996EN ISO 294-3:1998ISO 295EN ISO 295ISO 845EN ISO 845ISO 13943:2008EN ISO 13943:2010ISO 16012IEC 60695-1-10:2009EN 60695-1-10:2010IEC 60695-1-11:2010EN 60695-1-11:2010IEC 60695-1-30:2008EN 60695-1-30:2008IEC 60695-11-5:2004EN 60695-11-5:2005ISO 1043-1:2011EN ISO 1043-1:2011ISO 5725-2:1994All current amendments available at time of purchase are included with the purchase of this document.