IEC 60068-2-27:2008
环境试验.第2-27部分:试验.试验Ea和指南:冲击

Environmental testing - Part 2-27: Tests - Test Ea and guidance: Shock

标准号

IEC 60068-2-27:2008

发布

2008年

中文版

GB/T 2423.5-2019 (等同采用的中文版本)

发布单位

国际电工委员会

当前最新

IEC 60068-2-27:2008

 

 

引用标准

Guide 104 IEC 60068-1 IEC 60068-2-47:2005 IEC 60068-2-55 IEC 60721-3-1 IEC 60721-3-5

被代替标准

IEC 104/448/FDIS:2007 IEC 60068-2-27:1987 IEC 60068-2-29:1987

适用范围

This part of IEC 60068 provides a standard procedure for determining the ability of a specimen to withstand specified severities of non-repetitive or repetitive shocks. The purpose of this test is to reveal mechanical weakness and/or degradation in specified performances, or accumulated damage or degradation caused by shocks. In conjunction with the relevant specification, this may be used in some cases to determine the structural integrity of specimens or as a means of quality control (see Clause A.2). This test is primarily intended for unpackaged specimens and for items in their transport case when the latter may be considered to be part of the specimen. If an item is to be tested unpackaged, it is referred to as a test specimen. However, if the item is packaged, then the item itself is referred to as a product and the item and its packaging together are referred to as a test specimen. When used in conjunction with IEC 60068-2-47, this standard may be used for testing packaged products. This possibility was included in the 2005 version of IEC 60068-2-47 for the first time. This standard is written in terms of prescribed pulse shapes. Guidance for the selection and application of these pulses is given in Annex A and the characteristics of the different pulse shapes are discussed in Annex B. Wherever possible, the test severity and the shape of the shock pulse applied to the specimen should be such as to reproduce the effects of the actual transport or operational environment to which the specimen will be subjected, or to satisfy the design requirements if the object of the test is to assess structural integrity (see Clauses A.2 and A.4). For the purposes of this test, the specimen is always mounted to the fixture or the table of the shock testing machine during testing. NOTE The term “shock testing machine” is used throughout this standard, but other means of applying pulse shapes are not excluded. One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications.

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