UNE-EN 61000-4-27:2002/A1:2009 Electromagnetic compatibility (EMC) -- Part 4-27: Testing and measurement techniques - Unbalance, immunity test for equipment with input current not exceeding 16 A per phase
2009UNE-EN 61000-4-27:2002/A1:2009 Electromagnetic compatibility (EMC) -- Part 4-27: Testing and measurement techniques - Unbalance, immunity test for equipment with input current not exceeding 16 A per phase
2002UNE-EN 61000-4-27:2002 Electromagnetic compatibility (EMC) -- Part 4-27: Testing and measurement techniques - Unbalance, immunity test for equipment with input current no exceeding 16 A per phase.