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head0819 发表于 2014-6-23 10:45 
) l5 k: f. i" R4 Z/ K兄台,你一句话就搞定了吗?
( [5 B5 M. w+ y1 Z7 @( q标准哪里有讲到哦?恕我无知!
& p3 y* _ r. e/ U( H+ V& A3 e5 v60950 5.1.7.1,
8 Q1 m1 m- Z- A2 l( [If the result of the TOUCH CURRENTmeasurement on any of the above equipments exceeds 3 j5 z% p5 V% V. g# A# l6 |& U, e
3,5 mA r.m.s., the following requirements a) and b) apply, and also, if relevant, those in * y7 q5 w3 f" x3 J1 I/ X
5.1.7.2. + c! _4 I+ e, h
a) The r.m.s. PROTECTIVE CONDUCTOR CURRENTshall not exceed 5 % of the input current per
' [" C6 C/ x, l2 Sline under normal operating conditions. If the load is unbalanced, the largest of the three
% E4 i3 b# O! L& G8 y" {line currents shall be used for this calculation. |
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