验货员论坛

 找回密码
 注册
搜索
查看: 704|回复: 4
打印 上一主题 下一主题

请问如何做应力测试

[复制链接]
跳转到指定楼层
1#
发表于 2008-5-29 13:49:28 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
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
2#
发表于 2008-5-29 14:31:26 | 只看该作者
什么应力测试,说清楚点
3#
发表于 2008-5-29 14:36:57 | 只看该作者
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.
4#
发表于 2008-5-29 14:44:33 | 只看该作者
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
5#
发表于 2009-1-5 15:49:27 | 只看该作者
大哥。你搞的我看不懂啊
您需要登录后才可以回帖 登录 | 注册

本版积分规则

小黑屋|手机版|Archiver|外贸验货员网

GMT+8, 2025-4-22 21:36 , Processed in 0.052567 second(s), 18 queries , Gzip On.

Powered by Discuz! X3.2

© 2001-2013 Comsenz Inc.

快速回复 返回顶部 返回列表