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刚才看UL1727的关于焊接的要求是:" ~+ L! b- C6 A
18.3.3 With reference to 18.3.2, a lead is considered mechanically secure when one or more of the8 f+ _) `4 H5 w0 a
following conditions are met:* x0 j3 H$ E: E: J* K- e
a) The lead has at least one full wrap around a terminal.
+ o8 Z3 V! \# T( Z* a8 ~b) The lead has at least one right-angle bend when the lead is passed through an eyelet or
' Q! F7 F4 v$ y0 n. o/ popening.
5 R3 R/ u6 d6 `, R J1 XException: On a printed-wiring board that is soldered by a machine process in which the; [9 U! h. w3 \* g8 k5 g
soldering time and solder temperature are automatically controlled, bending over of a lead after it; L0 o! v4 x* f! Q$ n4 b6 P
has been passed through a hole in the board is not required.
) J8 U1 `0 M: L) D* v% o" |c) The lead is twisted with one or more conductors.: V5 @, J) ?$ m+ ]+ t
d) The lead is strapped in place, or the equivalent, adjacent to the soldered connection to hold
- L/ _: q/ {' _ p6 ?. Dthe lead end in place.4 E0 u, x) W' g! T
5 E0 r& y) o9 e8 G4 v欧洲的要求是类似的吗? |
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