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IEC 61000-4-27 Ed. 1.1 b:2009
"Electromagnetic compatibility (EMC) - Part 4-27: Testing and measurement techniques - Unbalance, immunity test for equipment with input current not exceeding 16 A per phase"
"IEC 61000-4-27:2000+A1:2009 considers immunity tests for electric and/or electronic equipment (apparatus and system) in its electromagnetic environment. Only conducted phenomena are considered, including immunity tests for equipment connected to public and industrial networks. Establishes a reference for evaluating the immunity of electrical and electronic equipment when subjected to unbalanced power supply voltage. Applies to 50 Hz/60 Hz three-phase powered electrical and/or electronic equipment with rated line current up to 16 A per phase. This consolidated version consists of the first edition (2000) and its amendment 1 (2009). Therefore, no need to order amendment in addition to this publication. "
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International Electrotechnical Commission [iec]
