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刚才看UL1727的关于焊接的要求是：
: D" \: Q& O/ r5 j4 |! l18.3.3 With reference to 18.3.2, a lead is considered mechanically secure when one or more of the8 e7 f8 A6 `, O; F+ f
following conditions are met:
, G; o, [5 e2 ka) The lead has at least one full wrap around a terminal.
) Y; \! N% C' n4 u( B mb) The lead has at least one right-angle bend when the lead is passed through an eyelet or
5 [$ D8 B# ^/ _0 ]* s4 Vopening.
; A- h W& t+ a% |5 TException: On a printed-wiring board that is soldered by a machine process in which the' w8 L/ [1 y; V$ q* c
soldering time and solder temperature are automatically controlled, bending over of a lead after it( {! P9 h2 P4 l9 ^! z
has been passed through a hole in the board is not required.
* ]7 _- Z, P9 l- `/ Tc) The lead is twisted with one or more conductors., T: p" l+ W P2 ]6 h/ p
d) The lead is strapped in place, or the equivalent, adjacent to the soldered connection to hold
! ]7 n/ W' S4 x6 L) P- I8 F# z; jthe lead end in place.! \7 D5 G* l, N2 s6 h5 p2 l7 J
4 j. i/ e% c3 d' z* @+ [# C欧洲的要求是类似的吗？ |
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发表于 2011-10-9 16:50
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