引用第1楼hellostudy于2009-05-11 17:49发表的 :! s' \- `+ C. Y+ F
0.1uF 以下不需要做这个测试的吧?
, h1 E Z! d0 SThe test shall be performed ten times.7 b! h0 _5 c Q9 W1 x9 H( U6 }/ s0 u4 T
The test between lines and ENCLOSURE shall not be performed if interference suppression$ K: V3 E, z2 V; p2 a3 \
capacitors are used with a capacitance between each line and earth of less than 3 000 pF for 0 U' I4 Z3 d x! e+ x4 L& iRATED voltages up to and including 250 V or 5 000 pF for RATED voltages up to and including; e" r- q6 R* d7 j) V8 \
125 V. The test between lines shall not be performed if interference suppression capacitors less than or equal to 0,1 uF are connected between them.作者: 阿鸡米得 时间: 2009-5-12 08:38
不是Y电容 5 F' I- M! p( l, f * L+ F9 u, @7 `2 g# l是X电容小于等于0.1不做作者: zheng 时间: 2009-5-12 08:41
电容的两个脚并一个电阻作者: 316979109 时间: 2009-5-12 18:10
医用电气设备的电源线、通信线，与其它设备或外围设备相互交换的通讯线路，至少有两根LN导线作为往返线路输送电力或信号，但在LN两根导线之外通常还有“地线”。干扰电压和电流分为两种：一种是LN导线分别做为往返线路传输；另一种是LN导线做去路，地线做返回路传输。前者叫“差模干扰”，后者叫“共模干扰”。 6 {- c5 L5 ?- A7 a& c3 q3 E, R1 ]电源插头的LN插脚之间剩余电压和剩余能量的测量主要是考虑“差模干扰”的影响。而电源插头的L（N）插脚与保护地之间的剩余电压和剩余能量的测量主要是考虑“共模干扰”的影响。作者: 2iso 时间: 2009-5-28 04:25