|
|
刚才看UL1727的关于焊接的要求是：
+ M- J; F! `; z, v0 D6 z18.3.3 With reference to 18.3.2, a lead is considered mechanically secure when one or more of the7 ]$ H4 J' Z$ c4 g
following conditions are met:. k' K3 d* a8 H" p* j
a) The lead has at least one full wrap around a terminal.% t. t; ~) e" r- g; m+ |* F$ Y
b) The lead has at least one right-angle bend when the lead is passed through an eyelet or. g9 e% ?3 ] [( b
opening.
; W" W1 `& s# L5 O, r. B$ zException: On a printed-wiring board that is soldered by a machine process in which the0 O) F9 M3 M, B- ~( f7 X
soldering time and solder temperature are automatically controlled, bending over of a lead after it6 e; n* ?. ]0 q/ W
has been passed through a hole in the board is not required.- G9 z G: c$ ?2 E7 B, t
c) The lead is twisted with one or more conductors.1 J9 d, w( {8 Q4 e- F& |2 p
d) The lead is strapped in place, or the equivalent, adjacent to the soldered connection to hold4 E, @2 U$ h/ D9 h4 i
the lead end in place.
4 n: O$ Y) l- v. D, L
+ P( v; A( l5 ?欧洲的要求是类似的吗？ |
|
/1 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2011-10-9 16:50
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡