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head0819 发表于 2014-6-23 10:45  + F- I% A' ^7 b6 M+ N9 z
兄台，你一句话就搞定了吗？$ {& S) D: A8 b8 E, f
标准哪里有讲到哦？恕我无知！
; c/ h" ?" F' V2 Q Y+ l% y7 J% ]60950 5.1.7.1,
; _' d% r' o, I6 W. g( D& @ mIf the result of the TOUCH CURRENTmeasurement on any of the above equipments exceeds
( O& b) n7 j3 w' H% Q( t3,5 mA r.m.s., the following requirements a) and b) apply, and also, if relevant, those in
7 n4 R7 [6 Q4 Y6 U. H) j' v1 S5.1.7.2.
1 P' ]; U. Y8 }' q" m6 k, Sa) The r.m.s. PROTECTIVE CONDUCTOR CURRENTshall not exceed 5 % of the input current per
6 W+ b" i' W& M7 r5 b/ Xline under normal operating conditions. If the load is unbalanced, the largest of the three
7 j6 }% r* ^! qline currents shall be used for this calculation. |
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