KS C IEC 61000-4-27-2014(2019) Electromagnetic compatibility(EMC) — Part 4-27: Testing and measurement techniques — Unbalance, immunity test for equipment with input current not exceeding 16 A per phase
2014KS C IEC 61000-4-27:2014 Electromagnetic compatibility(EMC) — Part 4-27: Testing and measurement techniques — Unbalance, immunity test for equipment with input current not exceeding 16 A per phase
2004KS C IEC 61000-4-27:2004 Electromagnetic compatibility(EMC)-Part 4-27:Testing and measurement techniques-Unbalance, immunity test