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5.1.1基本要求中有如下句子:
5 ?% v& N2 P3 T; C8 r9 q- ^0 K% ?if it is clear from a study of the circuit diagrams of either PERMANENTLY CONNECTED
. ]0 b& r i4 ^+ L0 p) oEQUIPMENT or PLUGGABLE EQUIPMENT TYPE B, that has a PROTECTIVE EARTHING CONDUCTOR, that the TOUCH CURRENT will exceed 3,5 mA r.m.s., but that the PROTECTIVE CONDUCTOR CURRENT will not exceed 5 % of input current, the tests of 5.1.5, 5.1.6 and 5.1.7 are not made.1 G( A6 G F1 j$ E `# T. u6 P
" V2 C M3 U/ x2 h0 h
该怎么分析接触电流有效值会超过3.5mA ,但保护电流不会超过输入电流的5% 呢?谢谢! |
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