The International Electrotechnical Commission (IEC) has issued IEC 61000-4-27 (2009-09) entitled, “Electromagnetic Compatibility (EMC) – Part 4-27: Testing and measurement techniques – Unbalance, immunity test for equipment with input current not exceeding 16 A per phase.” This standard considers immunity test for electric and/or electrical equipment (apparatus and system) in its electromagnetic environment. Only conducted phenomena are considered, including immunity tests for equipment connected to public and industrial networks. It establishes a reference for evaluating the immunity of electrical and electronic equipment when subjected to unbalanced power supply voltage. The standard applies to 50- Hz/60-Hz, three-phased powered electrical and/or electronic equipment with rated line current of up to 16 A per phase. This consolidated version consists of the first edition (2000) and its amendment 1 (2009). Therefore, there is no need to order amendments in addition to this publication.To learn more, or to purchase this standard, go to the IEC website.
New EMC Standard for Unbalance, Immunity Testing of Equipment
