61000-3-2，class A产品的一问

chas

广东安规检测
有限公司提供：

小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

请问一下，之前听实验室有提到在IEC/EN 61000-3-2中的class A的产品，75W以下的产品並沒有Limit，請問真的是這樣嗎？這段話又是在61000-3-2法規的那個章節中啊，不好意思以我的破英文程度找不到在那裡，請知道的大大告知一下，謝謝

H-RH

IEC 61000-3-2:2005 paragraph 7

7 x' f% E/ p# Y7 Harmonic current limits
5 x" m/ }/ W7 Z' I8 ^# Q1 fThe procedure for applying the limits and assessing the results is shown in Figure 1.
, c0 |. s0 Q' K+ c1 X( XFor the following categories of equipment, limits are not specified in this standard:
- D( }/ @; f) t: |! ANOTE 1 Limits may be defined in a future amendment or revision of the standard.
– equipment with a rated power of 75 W or less, other than lighting equipment;
$ N7 U1 t2 M5 yNOTE 2 This value may be reduced from 75 W to 50 W in the future, subject to approval by National Committees
at that time.
– professional equipment with a total rated power greater than 1 kW;
$ x+ }$ \9 G. R– symmetrically controlled heating elements with a rated power less than or equal to 200 W;
– independent dimmers for incandescent lamps with a rated power less than or equal to
1 kW.