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发表于 2012-8-16 14:26
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终于找到这要求了, 见下面条款. 所以电源输入输出线,变压器次级引出线除了焊在PCB 上面,也要加胶固定.# v9 a" f0 ~) M9 K* L/ ]
3.1.9 Termination of conductors
- O! x0 m l- O6 h, Z6 @: HConductors shall be provided with a means (for example, barriers or fixing), or be so terminated,! w9 d; E' v0 [7 g
that they and their terminators (for example, ring terminals and flat quick-connect terminals)+ K- n* W- b6 U, T
cannot, in normal use, become so displaced that CLEARANCES or CREEPAGE DISTANCES are reduced to
* ^; R* b- L$ m! G) hless than the values specified in 2.10 (or Annex G).- j6 O7 K0 y" Z, d0 K7 P8 _5 \
It is permitted to use soldered, welded, crimped, screwless (push-in) and similar terminations for% R$ R V3 d* P2 Q# q O5 s/ ^% Q
the connection of conductors. For soldered terminations, the conductor shall be positioned or3 N6 K; ?4 R. i) l- G5 G
fixed so that reliance is not placed upon the soldering alone to maintain the conductor in% n3 m% v4 C! }# ~2 d) x+ g
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