火灾危险试验 第2-13部分 基于灼热/热线的试验方法 -材料的辉光丝点火温度（GWIT）试验方法

[中文适用范围]： 本部分的 IEC 60695 规定了应用于固体电气绝缘材料或其他固体材料样品的辉线测试的详细信息，以确定辉线易燃指数（GWFI）。GWFI 是在此标准化程序中确定的最高温度，在此温度下，测试材料不点燃，或者如果点燃，在移除辉线后 30 秒内熄灭，且未被完全消耗；如果有熔融滴落物，也不点燃包裹 tissue。该测试方法是对一系列标准测试样品进行的材料测试。所获得的数据，连同用于材料的辉线点燃温度（GWIT）测试方法（IEC 60695-2-13）的数据，可用于根据 IEC 60695-1-30 的预选择过程，判断材料是否符合 IEC 60695-2-11 的要求。 [外文原描述]： IEC 60695-2-12:2021 specifies the details of the glow-wire test to be applied to test specimens of solid electrical insulating materials or other solid materials for flammability testing to determine the glow-wire flammability index (GWFI). GWFI is the highest temperature, determined during this standardized procedure, at which the tested material does not ignite or, if it does, extinguishes within 30 s after removal of the glow-wire and is not totally consumed; and molten drips, if they occur, do not ignite the wrapping tissue. This test method is a materials test carried out on a series of standard test specimens. The data obtained, along with data from the glow-wire ignition temperature (GWIT) test method for materials, IEC 60695-2-13, can then be used in a preselection process in accordance with IEC 60695-1-30 [4] to judge the ability of materials to meet the requirements of IEC 60695-2-11. This basic safety publication focusing on safety test method(s) is primarily intended for use by technical committees in the preparation of safety publications 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. This publication is to be read in conjunction with IEC 60695-2-10. This third edition cancels and replaces the second edition published in 2010 and Amendment 1:2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) New terms and definitions with regards to times and durations have been added to Clause 3, with an effect on the application of the test method.