兄台分析得太对了,那工程师的确是一个新手.有高级工程师也接受PCB导线即使不勾焊,只要导线两两用扎带扎好就行了.作者: wu1321001109 时间: 2009-7-7 08:54 作者: okjun 时间: 2009-7-7 14:13
IEC2006版已经把26章的注解已经改成跟22.31一致了。 & F6 }" x" ` Y! D22.31的注: . Z+ e- ?8 N( @0 u' S" E. \0 \wires connected by soldering are not considered to be adequately fixed unless they are held in place near the terminals independently of the solder;3 c& z# h3 U* q8 v. x+ x) Z; Z
26.2和26.11的注均为:7 M3 u! k* S% A( ~7 Q
Conductors connected by soldering are not considered to be positioned or fixed so that reliance is not placed upon the soldering alone to maintain it in position unless they are held in place near the terminals independently of the solder.: D! j" y( j* } E
1 G0 o7 k5 v- z" |/ C4 k
仅仅勾焊是不能接受的。作者: iamcjq 时间: 2013-8-20 11:38
26章是外部导线的,所以我觉得判定前要加上导线是内部还是外部,内部的勾焊可以接受,我们的板子就那么干作者: 山炮 时间: 2013-8-20 12:44
如果电线会受到使用或运输时的摇动,那么你还会认为单纯勾焊是可靠的么?这种情况下根端子片没有夹紧导线的绝缘皮是等同的,受摇动后必然线丝折断。只有导线不会受到上述的机械应力时,勾焊才认为是可靠的。反之则不可靠。