适用于测量频率范围高达9 kHz的频谱分量的仪器，该频谱分量叠加在50 Hz和60 Hz的电源系统基波上。 出于实际考虑，本标准区分了谐波、间谐波和高于谐波频率范围（高达9 kHz）的其他成分。 定义了根据某些标准中给出的发射限值（例如IEC 61000-3-2中给出的谐波电流限值）以及实际供电系统中谐波电流和电压的测量仪器。 2004年7月勘误表的内容已包含在本副本中。

Applies to instrumentation intended for measuring spectral components in the frequency range up to 9 kHz which are superimposed on the fundamental of the power supply systems at 50 Hz and 60 Hz. For practical considerations, this standard distinguishes between harmonics, interharmonics and other components above the harmonic frequency range, up to 9 kHz. Defines the measurement instrumentation intended for testing individual items of equipment in accordance with emission limits given in certain standards (for example, harmonic current limits as given in IEC 61000-3-2) as well as for the measurement of harmonic currents and voltages in actual supply systems. The contents of the corrigendum of July 2004 have been included in this copy.