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刚才看UL1727的关于焊接的要求是:7 Q1 O3 k+ N2 E4 c# o( u
18.3.3 With reference to 18.3.2, a lead is considered mechanically secure when one or more of the
. S6 E* j" m1 f' j4 o' Yfollowing conditions are met:) Z: f* g) [. J1 \( G" U1 J
a) The lead has at least one full wrap around a terminal.0 j6 P, A9 c& A& g3 D
b) The lead has at least one right-angle bend when the lead is passed through an eyelet or
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Exception: On a printed-wiring board that is soldered by a machine process in which the* N% n" ]0 G7 S" |5 h5 _3 `, D& a+ S
soldering time and solder temperature are automatically controlled, bending over of a lead after it$ X0 P1 z$ L' c
has been passed through a hole in the board is not required.9 q; G6 U, ?' Y5 G
c) The lead is twisted with one or more conductors.6 D* w" ^0 [0 H$ y! f6 h+ r% m$ t
d) The lead is strapped in place, or the equivalent, adjacent to the soldered connection to hold0 }4 h2 L+ A6 R& s. D
the lead end in place.) K2 |; A9 K9 C5 R4 d8 `
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欧洲的要求是类似的吗? |
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