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刚才看UL1727的关于焊接的要求是:
8 c6 b2 p. g% f4 g+ \; Z2 E0 `+ Y18.3.3 With reference to 18.3.2, a lead is considered mechanically secure when one or more of the
- w. T1 W7 n* D6 T, Sfollowing conditions are met:
9 y) E5 P. {7 g# ?a) The lead has at least one full wrap around a terminal." C2 E6 i' R( n. V
b) The lead has at least one right-angle bend when the lead is passed through an eyelet or
4 _; F4 E5 r2 {4 G3 n' ]: }( u+ Ropening.0 e- D% H, }- U( V7 m' Q, ]
Exception: On a printed-wiring board that is soldered by a machine process in which the
4 J: r. R# O3 h6 Hsoldering time and solder temperature are automatically controlled, bending over of a lead after it
: }+ {6 c6 c0 [& ]has been passed through a hole in the board is not required.
! Q- Q% G5 ^, D9 }c) The lead is twisted with one or more conductors.( Y" T) ?( } S4 l( J3 u* @3 X
d) The lead is strapped in place, or the equivalent, adjacent to the soldered connection to hold. \' R$ _3 o+ S' a
the lead end in place.! U6 r# x, [5 ~3 I: e$ { d% J
. v+ J: z* c+ B! V( }. _$ B
欧洲的要求是类似的吗? |
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