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  • BSI
    BS IEC 60404-8-7:2020 Magnetic materials - Specifications for individual materials. Cold-rolled grain-oriented electrical steel strip and sheet delivered in the fully-processed state
    Edition: 2020
    $435.35
    / user per year

Description of BS IEC 60404-8-7:2020 2020

IEC 60404-8-7:2020 is available as IEC 60404-8-7:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60404-8-7:2020 defines the grades of cold-rolled grain-oriented electrical steel strip and sheet in nominal thicknesses of 0,20 mm, 0,23 mm, 0,27 mm, 0,30 mm and 0,35 mm. In particular, it gives general requirements, magnetic properties, geometric characteristics, tolerances and technological characteristics, as well as inspection procedures. This document applies to Goss textured grain-oriented electrical steel strip and sheet supplied in the final annealed condition in coils or sheets, and intended for the construction of magnetic circuits. The grades are grouped into three classes:
- conventional grades;
- high permeability grades;
- magnetic domain refined high permeability grades.
They correspond to Class C22 of IEC 60404-1.
This edition includes the following significant technical changes with respect to the previous edition:
- insertion of a third class of grain-oriented electrical steels for magnetic domain refined high permeability grades;
- introduction of the single sheet tester (SST) method as reference measurement method for this third class of material together with a conversion factor for transposition of the SST measurement results to equivalent Epstein values;
- update of the electrical steel range to take account of the current offers and demands of grades.



Standard NumberBS IEC 60404-8-7:2020
TitleMagnetic materials - Specifications for individual materials. Cold-rolled grain-oriented electrical steel strip and sheet delivered in the fully-processed state
StatusDefinitive
Publication Date2020-09-23
Identical National Standard OfIEC 60404-8-7 Ed.5.0
DescriptorsElectrical components, Components, Common terms, Electrical equipment, Standard specifications, Equipment specification, Magnetic alloys, Magnetic materials, Materials by property and purpose
ICS29.030 Magnetic materials
CommitteeISE/108
ISBN978 0 539 02534 7
PublisherBSI
Pages24

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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