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5.1.1基本要求中有如下句子:
% N$ f4 P; i% d1 A! hif it is clear from a study of the circuit diagrams of either PERMANENTLY CONNECTED; G/ x B% I) D( S9 E; S/ Y
EQUIPMENT 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.
& ~/ X! @5 ?/ V% R. e Z0 e3 F7 o( g8 b8 q/ [* I8 d2 p, r5 w
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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