标题: EMC测试 [打印本页] 作者: xmzzdong12 时间: 2010-10-26 11:54 标题: EMC测试 请教论坛里的安规高手们，不知在小家电类的产品EMC测试RE(Radiated Emission)与CE（Conducted Emission)）是否要同时满足？我看标准是可选择其一通过即可。作者: kamleung 时间: 2010-10-26 13:17
Normally, the household appliance is tested with EN55014-1+EN55014-2. All emision tests are defined in EN55014-1. However, the RE (Radiated Emission) is only applicable to the Toys. For the household appliance, the RE test is not necessary.作者: 郭煜东 时间: 2010-11-2 10:45
楼上是正解作者: nicho87 时间: 2010-11-4 18:23
Appliances are deemed to comply in the frequency range from 300 MHz to 1 000 MHz if, U7 E$ w& [ e' |
both of the following conditions ( 1) and 2)) are fulfilled: : a+ n- i" u& s, \; U% S- P1) all emission readings from the equipment under test shall be lower than the applicable2 ~: n4 B+ M/ |" i. I
limits (Table 2a) reduced by the margin (Table 2b); - V( w3 e# l) `: H2) the maximum clock frequency shall be less than 30 MHz. . O$ D, o1 ~' F6 s& M0 cIf either of condition 1) or 2) is not fulfilled, radiated measurements in the frequency range q3 Y1 [; R* B
from 300 MHz to 1 000 MHz shall be conducted and the limits of Table 3 for that range 7 a2 W. l8 S' W' F+ L2 S' fapplied. In any case the limits of Table 2a in the frequency range 30 MHz to 300 MHz ) l h+ Q. t4 e$ H0 y4 c% {shall be met. ) D9 ?) {3 Z+ d0 x% U6 ITable 2b – Margin when performing disturbance power measurement in the frequency range 30 MHz to 300 MHz 0 _3 p+ J6 m: r7 jFrequency range Quasi-peak dB (pW) 2 D) i" \. t9 k; B5 S200 to 300 0 to 10 dB -- Y) E" [& Y8 ~) S2 e" f
当功率骚扰（DP）200到300MHzQP余量小于10dB时，辐射（RE）是需要测试的。参见CISPR14-1 2009作者: xmzzdong12 时间: 2010-11-29 16:06
谢谢楼上的大虾们作者: stey 时间: 2010-11-29 16:40
如果是DC供电，做RE就可了作者: 测试小刀 时间: 2010-11-30 15:34
好贴必顶啊！！！谢谢楼主！！！作者: okrich 时间: 2010-12-3 21:49
哇塞，都是英文高手啊