What is IEC 61631 about?
IEC 61631 specifies a test method for the mechanical strength of cores made of magnetic oxides. This test method is suitable for most of the E-cores, ETD-cores, I-cores and ring-cores but other core types such as U-cores could be tested according to a derived method agreed by the parties concerned. IEC 61631 is also applicable to the mechanical strength measurement of magnetic powder cores.
Who is IEC 61631 for? BS EN IEC 61631:2020 history
2020BS EN IEC 61631:2020 Test method for the mechanical strength of cores made of magnetic oxides