IEC 61000的这一部分涉及设备产生的电压变化、电压波动和闪烁的发射，并影响公共低压供电系统。 它规定了在特定条件下测试的设备产生的电压变化限值。 本文件主要适用于额定输入电流为16 a至75 a（含75 a）的电气和电子设备，该设备拟连接至标称系统电压在220 V至250 V之间的公共低压配电系统，线路至中性点的频率为50 Hz，且需要有条件连接。 本文件也适用于IEC 61000-3-3范围内的设备，这些设备在使用参考阻抗Ζrefand进行测试或评估时不符合限制，因此 受制于条件连接。符合IEC 61000-3-3要求的设备 不包括在IEC 61000的本部分中。 根据本文件进行的设备试验为型式试验。 交叉引用:IEC 61000-3-3:2013EN 61000-3-3:2013IEC 60050-161IEC/TR 60725购买本文件时可获得的所有现行修订均包含在购买本文件中。

This part of IEC 61000 is concerned with the emission of voltage changes, voltage fluctuations and flicker produced by equipment and impressed on the public low-voltage supply system. It specifies the limits of voltage changes produced by equipment tested under specified conditions. This document is primarily applicable to electrical and electronic equipment having a rated input current from 16 A up to and including 75 A, which is intended to be connected to public low-voltage distribution systems having nominal system voltages of between 220 V and 250 V, line-to-neutral at 50 Hz, and which is subject to conditional connection. This document is also applicable to equipment within the scope of IEC 61000-3-3 that does not meet the limits when tested or evaluated with reference impedance Ζrefand is therefore subject to conditional connection. Equipment which meets the requirements of IEC 61000-3-3 is excluded from this part of IEC 61000. Equipment tests made in accordance with this document are type tests.Cross References:IEC 61000-3-3:2013EN 61000-3-3:2013IEC 60050-161IEC/TR 60725All current amendments available at time of purchase are included with the purchase of this document.