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diler 发表于 2014-6-16 10:14 
% n# i0 S! M3 a, H- P* X能说一下具体是哪条有提到吗,一直没发现有类似的内容,谢谢! + f3 x8 w( T3 x( f
EN 61000-4-5:20067 }3 c+ o v/ ? D
8.2 Application of the surge in the laboratory7 Q/ m; u3 s* C+ F8 x2 U# ~
– test level (voltage) (refer to Annex A);
$ f7 _' Y4 @) V; j1 q* H" p! u6 L– number of surges:' ~0 o7 w7 d8 u0 x- m. h
number of surge pulses unless otherwise specified by the relevant product standard:
$ I, h1 w8 K7 g) Q- for d.c. power ports and interconnection lines five positive and five negative surge
6 W! U; c% ]8 c4 W2 l2 |pulses;
. v8 b# ?# n9 @( D- for a.c. power ports five positive and five negative pulses each at 0º, 90º, 180º and at8 D" w* ^7 r$ t# e
270º;& C7 D: M5 E# |. j
– time between successive pulses: 1 min or less;
% |& y# V! \# z– representative operating conditions of the EUT;, U$ C/ H. v/ m/ x
– locations to which the surges are applied. |
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