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刚才看UL1727的关于焊接的要求是:1 g+ U* y) F3 ?! J) u
18.3.3 With reference to 18.3.2, a lead is considered mechanically secure when one or more of the# u5 t. U1 e' D1 c$ h
following conditions are met:
5 h) A1 G9 F1 ]; h/ P8 Ma) The lead has at least one full wrap around a terminal.
3 G, [6 ]. ?; vb) The lead has at least one right-angle bend when the lead is passed through an eyelet or
) X5 o2 p4 o: ^6 G4 V8 zopening.
1 X' R" m+ [+ C" f9 E6 e2 h6 oException: On a printed-wiring board that is soldered by a machine process in which the
1 a7 M' f8 @) h; S) Ysoldering time and solder temperature are automatically controlled, bending over of a lead after it' W" O1 h6 ^! p; W+ p
has been passed through a hole in the board is not required.
% o$ S% ^3 }; l, Tc) The lead is twisted with one or more conductors.
}- \5 C! h* Vd) The lead is strapped in place, or the equivalent, adjacent to the soldered connection to hold
U: P' u, |6 V" @7 fthe lead end in place.2 z- {% g; w- T$ q# e& j7 u
$ C) {9 d* h. O( g4 d( O/ G
欧洲的要求是类似的吗? |
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