标准摘要
[中文适用范围]： 此部分国际标准涉及频率范围为0 kHz至150 kHz的传导电磁现象（干扰和来自电网通信系统的信号），其中电网通信系统的信号频率范围特别扩展至148.5 kHz。它给出了标称电压最高为420 V（单相）或690 V（三相）的公共低压交流配电系统的兼容性水平，额定频率为50 Hz或60 Hz。在此文档中规定的兼容性水平适用于公共耦合点。对于从上述系统获取供电的设备电源输入端子，其传导电磁干扰的严重程度水平在大多数情况下可视为与公共耦合点处的水平相同。在某些情况下并非如此，特别是在专门为特定安装供电的长线路情况下，或者在设备所属的安装内产生或放大的电磁现象的情况下。规定了公共低压配电系统中可能出现的传导电磁干扰现象的兼容性水平，用于指导定义：为公共配电系统设置的传导发射限值（包括3.1.5中定义的规划水平）；由产品委员会和其他机构为暴露在公共配电系统中存在的传导电磁现象的设备设定的抗扰度限值。所考虑的干扰电磁现象包括：电压波动和闪烁；高达并包括40次谐波的谐波；高达40次谐波的间谐波；在更高频率（40次谐波以上至150 kHz）的差模电压失真；电压跌落和短时断电；电压不平衡；瞬态过电压；电源频率变化；直流分量；来自电网通信系统（MCS）的信号。大多数这些现象在IEC TR 61000-2-1中描述。在尚无法确定兼容性水平的情况下，附录B提供了一些信息。 [外文原描述]： IEC 61000-2-2:2002+A1:2017 is concerned with conducted disturbances in the frequency range from 0 kHz to 9 kHz, with an extension up to 148,5 kHz specifically for mains signalling systems. It gives compatibility levels for public low voltage a.c. distribution systems having a nominal voltage up to 420 V, single-phase or 690 V, three-phase and a nominal frequency of 50 Hz or 60 Hz. Compatibility levels are specified for electromagnetic disturbances of the types which can be expected in public low voltage power supply systems, for guidance in: - the limits to be set for disturbance emission into public power supply systems; - the immunity limits to be set by product committees and others for the equipment exposed to the conducted disturbances present in public power supply systems. This consolidated version consists of the second edition (2002) and its amendment 1 (2017). Therefore, no need to order amendment in addition to this publication.
英文名称Electromagnetic compatibility (EMC) - Part 2-2: Environment - Compatibility levels for low-frequency conducted disturbances and signalling in public low-voltage power supply systems