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5.1.1基本要求中有如下句子:3 G4 T, }' \% e% H2 Y7 M
if it is clear from a study of the circuit diagrams of either PERMANENTLY CONNECTED
% h# n R2 T7 i. n1 \! `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.
7 C$ k' T/ ~2 n& E6 ^$ c4 @
- m' R& y+ d+ f0 @# o/ s8 X* D# s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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