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现行 IEC 60068-2-31:2008
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Environmental testing - Part 2-31: Tests - Test Ec: Rough handling shocks, primarily for equipment-type specimens 环境测试 - 第2-31部分:测试 - 测试Ec:粗略处理冲击 主要用于设备型样品
发布日期: 2008-05-21
IEC 60068-2-31:2008介绍了一种试验程序,用于模拟粗暴搬运冲击的影响,主要是在设备型试样中,以及在维修工作或操作使用中粗暴搬运时可能受到的撞击、震动和跌落的影响。 本程序不会将运输过程中受到的影响模拟为松散约束的货物。如果要评估散装货物运输的影响,应使用测试Ee:反弹。此外,本程序不模拟施加在已安装设备上的冲击效果。 如果要评估这种影响,请参考试验Ea:冲击。仅应针对可能会受到此类粗暴处理的设备进行测试,例如中小型和质量的设备,并且仅适用于存在此类处理风险的表面和角落。一般来说,经常处理和维修的设备(例如现场设备和机组备件)可能会被视为存在风险,而构成永久性装置组成部分的设备通常不会被视为存在风险,无需进行测试。 测试可能不适用于形状不规则的易碎无保护设备(例如飞机机头雷达),当从安装中移除时,这些设备将包含在操作架或夹具中。然而,当这些设备处于运输箱或装卸架或夹具中时,它可能适用于这些设备。对于仅位于一个表面(例如正常底座)上的设备,试验通常仅适用于该表面。当试样固定在试验机上时,对其进行冲击试验。 自由落体、自由落体、重复自由落体和弹跳试验在试样自由落体的情况下进行。第二版取消并取代1969年出版的第一版,构成技术修订版。 与前一版本相比,主要的变化是在适当的情况下引入软包装测试。新版IEC 60068-2-31现在包含了第二版IEC 60068-2-32(1975)。具有符合IEC指南104的基本安全出版物的状态。
IEC 60068-2-31:2008 deals with a test procedure for simulating the effects of rough handling shocks, primarily in equipment-type specimens, the effects of knocks, jolts and falls which may be received during repair work or rough handling in operational use. This procedure does not simulate the effects of impacts received during transportation as loosely constrained cargo. Where the effects of loose cargo transportation are to be assessed, test Ee: Bounce should be used. Also this procedure does not simulate the effects of shock applied to installed equipments. Where this effect is to be assessed refer to test Ea: Shock. Testing should only be specified for equipment likely to receive such rough handling, for example those of small to medium size and mass, and should only be applied to those faces and corners where there is a risk of such treatment being encountered. In general, equipment which is frequently handled and serviced (for example field equipment and unit spares) can be considered at risk, whereas equipment forming an integral part of a permanent installation would not normally be considered at risk and need not be tested. Testing may not be applicable to fragile unprotected equipment of irregular shape (for example aircraft nose radar) which, when removed from the installation would be contained in a handling frame or jig. It may however be applicable to these items of equipment when they are in their transit case or in their handling frame or jig. For equipment which stands only on one face (for example the normal base) the test is generally only applied to that face. Shock tests are performed on the specimen when fixed to the test machine. Drop and topple, free fall, repeated free fall and bounce tests are performed with the specimen free. This second edition cancels and replaces the first edition, published in 1969 and constitutes a technical revision. The major changes with regard to the previous edition concern the introduction of soft packaging tests, where appropriate. This new edition of IEC 60068-2-31 now incorporates the second edition of IEC 60068-2-32 (1975). Has the status of a basic safety publication in accordance with IEC Guide 104.
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归口单位: TC 104
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IEC 60068-2-31 ED 2. Basic environmental testing procedures. Part 2-31. Tests. Test Ec. Rough handling shocks, primarily for equipment-type specimens
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环境试验.第2-31部分:试验.试验Ec:主要用于设备型试样的粗暴搬运冲击(IEC 60068-2-31-2008);德文版EN 60068-2-31:2008
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