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刚才看UL1727的关于焊接的要求是:6 I; s* {; ?/ v
18.3.3 With reference to 18.3.2, a lead is considered mechanically secure when one or more of the" I5 Q* H& h1 }& [9 l
following conditions are met:
7 J; _! e+ d% H& wa) The lead has at least one full wrap around a terminal.+ ~, S" n, g( P+ J( i
b) The lead has at least one right-angle bend when the lead is passed through an eyelet or
7 p* s+ n% I6 v* E+ O* }) W, |opening." H$ `! y+ `- t3 T# j
Exception: On a printed-wiring board that is soldered by a machine process in which the3 Z1 p1 t+ V$ v+ z! B
soldering time and solder temperature are automatically controlled, bending over of a lead after it s9 X8 L I2 _9 I# O. n
has been passed through a hole in the board is not required.7 {! H5 {' A4 o& `6 l1 W) r
c) The lead is twisted with one or more conductors.
5 z4 f U5 m) }d) The lead is strapped in place, or the equivalent, adjacent to the soldered connection to hold# f9 w6 R x! j% a6 q2 M- f
the lead end in place.7 o+ M* \4 ^3 b% w O7 b6 g
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欧洲的要求是类似的吗? |
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