IEC 60884-1: 2002+A1: 2006 clause 12.3.12 如何理解？

ljh809809

广东安规检测
有限公司提供：

小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

! M2 d) _- {4 `- z9 G6 z
12.3.12 Screwless terminals shall be so designed that the connected rigid solid conductor remains clamped, even when it has been deflected during normal installation, for example, during mounting in a box, and the deflecting stress is transferred to the clamping unit. Compliance is checked by the following test which is made on three specimens of socketoutlets which have not been used for any other test.
, F# w( R" ~3 i. T& o+ X$ N问题1：
做这个测试时，为什么一定要用三个没有做过任何试验的插座的试样来检查，而不是用象12.3.11那样，只用无螺纹端子来检查？
+ d& l1 b5 |" n2 @+ _
$ i4 n$ T( x9 D, L: vIf, for any of the 12 test directions, the voltage drop is greater than 25 mV, the force is maintained in this direction until the voltage drop is reduced to a value below 25 mV, but for not more than 1 min. After the voltage drop has reached a value below 25 mV, the force is maintained in the same direction for a further period of 30 s during which period the voltage
( {; Q# S% L7 R6 n& }8 s3 Cdrop shall not have increased.
问题2：如果电压降大于25mV，要继续施加力直到电压降低于25mV，此力是与原来的力一样大吗？一直加力就可以使电压降低于25mV吗？
9 W3 E, V& r* `" Y; a% p' V7 o
9 a* b" D) D! k3 b2 n1 |8 _问题3：现有如图的装置，如何来做无螺纹端子的弯曲试验？