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本帖最后由 弹指飞烟 于 2014-6-25 10:30 编辑
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: F. y' W, Q+ v6 |焊锡的电线不会承受应力,而且所加绝缘护套固定可靠,这种结构是可以但是通常不被认可。
( E/ d* \& t2 O+ W标准如下:3 [7 \4 S& _* o6 e4 ~8 K% U
23.9 Stranded conductors shall not be consolidated by lead-tin soldering where they are subjected to contact pressure, unless the clamping means is constructed so that there is no3 u+ ^8 f5 i7 h# m$ \9 ?
risk of bad contact due to cold flow of the solder.$ H3 @" b3 S( u K, r4 L, u
23.9 多股绞线在其承受接触压力之处,不应使用铅一锡焊将其焊在一起,除非夹紧装置的结构使得此处不会出现由于焊剂的冷流变而产生不良接触的危险。, Z" [, M" w) g0 E8 E8 Q
NOTE 1 The requirement may be met by using spring terminals. Securing the clamping screws alone is not considered to be adequate.+ |; o$ }; k2 V7 i8 Y
注1: 使用弹簧接线端子可满足本要求,仅拧紧夹紧螺钉不被认为是充分的。$ i7 r4 w6 G6 T, c4 ?# F& l2 }8 v9 C
NOTE 2 Soldering of the tip of a stranded conductor is allowed.1 Z' H: B" w8 }6 x
注2: 允许多股绞线的顶端钎焊。1 k+ X! }( X0 q/ Q
Compliance is checked by inspection.5 A$ q: w- ?) X0 G! V
通过视检确定其是否合格。 |
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