标题: 请问如何做应力测试 [打印本页] 作者: ltjzq19 时间: 2008-5-29 13:49 标题: 请问如何做应力测试 请问有那位高人有没有应力测试标准？？？急须标准 在这里谢谢各位高手作者: seally 时间: 2008-5-29 14:31
什么应力测试,说清楚点作者: 木鱼.Zuo 时间: 2008-5-29 14:36
问的太笼统了，具体什么产品的啊
你说的是不是电源线的 Strain relief test
Strain Relief Test
41.1 The strain relief means provided on an attached flexible cord, when tested in accordance with 41.2,
shall withstand for 1 minute a pull of 35 pounds force (156 N) applied to the cord.
Exception: In the case of a hand-held appliance having a mass of 1/2 pound (227 g) or less, exclusive
of the cord, the pull applied to the cord shall be 20 pounds force (89 N).
41.2 The connections of the cord inside the appliance are to be disconnected. The specified force is to
be applied to the cord and so supported by the appliance that the strain relief means will be stressed from
any angle that the construction of the appliance permits. At the point of disconnection of the conductors,
there shall not be movement of the cord to indicate that stress on the connections would have resulted.作者: 木鱼.Zuo 时间: 2008-5-29 14:44
以上指的是ＵＬ上的要求，
别的国家有不同的，ＣＳＡ好象要求２０ＰＬＳ就可以了作者: 晴天2 时间: 2009-1-5 15:49
大哥。你搞的我看不懂啊