标题: 61000-3-2，class A产品的一问 [打印本页] 作者: chas 时间: 2008-6-23 18:12 标题: 61000-3-2，class A产品的一问 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，謝謝作者: H-RH 时间: 2008-6-23 18:53
IEC 61000-3-2:2005 paragraph 78 a! M1 B8 F" e" K' X
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7 Harmonic current limits 7 A8 H& v) u5 h/ g2 C& cThe procedure for applying the limits and assessing the results is shown in Figure 1.* G& p9 {0 W$ s7 g1 z For the following categories of equipment, limits are not specified in this standard:0 C7 q, d U9 ~8 f% J- J- M, M
NOTE 1 Limits may be defined in a future amendment or revision of the standard. 2 |3 I5 N9 |8 p8 o- h/ D- z– equipment with a rated power of 75 W or less, other than lighting equipment;/ f# P% H6 O: b
NOTE 2 This value may be reduced from 75 W to 50 W in the future, subject to approval by National Committees* C1 r$ }; J2 b2 P/ M I, ~
at that time. V: @' k6 N; D' j C: y9 H– professional equipment with a total rated power greater than 1 kW;- w+ Q: r- v! O3 O
– symmetrically controlled heating elements with a rated power less than or equal to 200 W;$ y% {8 B2 d2 H+ G- k" v$ O$ ]
– independent dimmers for incandescent lamps with a rated power less than or equal to - F" q2 W+ u2 N+ P& `$ i T( `1 kW.