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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.
% X" g* l$ j7 ]9 L0 R4 X3.1.9 Termination of conductors+ f! u4 d3 ?; ~; \
Conductors shall be provided with a means (for example, barriers or fixing), or be so terminated,
( F* F5 f( |5 Q& r7 `2 zthat they and their terminators (for example, ring terminals and flat quick-connect terminals)
u" O w' G( v% ~( _+ ~4 Ecannot, in normal use, become so displaced that CLEARANCES or CREEPAGE DISTANCES are reduced to
. Q; F) |8 R, Mless than the values specified in 2.10 (or Annex G).8 _+ y s, J: s, j, j
It is permitted to use soldered, welded, crimped, screwless (push-in) and similar terminations for* y& C' M" ?" Y8 `' ?
the connection of conductors. For soldered terminations, the conductor shall be positioned or c1 v6 ~( t1 J, H
fixed so that reliance is not placed upon the soldering alone to maintain the conductor in* T2 `2 ?# S1 l+ z6 \9 C* U& y, N/ g
position. |
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