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sklademVydáno: 2023-04-03
BS EN IEC 60404-12:2023
Magnetic materials Methods of test for the assessment of the thermal endurance of surface insulation coatings on electrical steel strip and sheet
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Označení normy: | BS EN IEC 60404-12:2023 |
Počet stran: | 20 |
Vydáno: | 2023-04-03 |
ISBN: | 978 0 539 06729 3 |
Status: | Standard |
DESCRIPTION
BS EN IEC 60404-12:2023
This standard BS EN IEC 60404-12:2023 Magnetic materials is classified in these ICS categories:
- 29.030 Magnetic materials
- 17.220.01 Electricity. Magnetism. General aspects
- the method of test for adhesion has been modified to match to the method of bend test specified in ISO 1519 using a cylindrical mandrel of 32 mm in diameter instead of the 30 mm diameter mandrel specified in the first edition;
- the method of test for interlaminar insulation resistance has been modified to match to the method specified in IEC 60404-11 and the modified Franklin test has been removed;
- the method of test for compressibility has been modified to match to the method of test for stacking factor specified in IEC 60404-13;
- the concept of "resistance grades" has been removed;
- the clamping pressure to be used at temperature ratings above 500 °C has been reduced to (0,01 ± 0,001) N/mm2;
- the testing for continuous exposure has been made a subject to an agreement between the manufacturer and the purchaser and the procedure has been moved to an informative Annex A.