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?

IEC 61631 on mechanical strength of cores made of magnetic oxides is relevant to:

Mechanical engineer
Metallurgist
Manufacturer of magnetic oxides cores

Why should you use IEC 61631?

E-cores, ETD-cores, I-cores and ring cores are used in transformers or inductors.

As a user of IEC 61631, you can ensure the mechanical strength of cores made of magnetic oxides. The test method specified in IEC 61631 helps the user in obtaining material development, quality checking, characterization and data acquisition purposes. IEC 61631 assist the user in improving the mechanical strength of the product. With the necessary guidance and compliance to IEC 61631, you will be able to expand the market reach for the product and build consumer trust and confidence.

What’s changed since the last update?

BS EN IEC 61631:2020 supersedes BS EN 61631:2001, which is withdrawn.

This edition includes the following significant technical changes concerning the previous edition

The phrase: "This document is also applicable to the mechanical strength measurement of magnetic powder cores" has been added in the scope
IEC 61246 has been replaced by IEC 63093-8; EN 1002-2 has been replaced by

ISO 7500-1; ISO 4677-1 and ISO 4677-2 has been withdrawn

Dimensions D and F in Figure A.1 and Table A.1 have been changed to be consistent with

Figure 1 of IEC 63093-8:2018

Addition of the content of the ring-cores test
The location of the jig is amended in Figure 3
In Figure 5, the roller bars are moved to the edge of the I-core, aligned with the core.

BS EN IEC 61631:2020

Test method for the mechanical strength of cores made of magnetic oxides

Current

Published:

31 Jul 2020