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5.1.1基本要求中有如下句子:4 s6 F! n, `: d" E! |6 y% y& K
if it is clear from a study of the circuit diagrams of either PERMANENTLY CONNECTED
- } e% e& w/ CEQUIPMENT 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.
/ s" E! _9 k$ e: S# U+ o3 g' R9 x7 V3 ^8 f* T+ A
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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