29.030 - Magnetic materials
ICS 29.030 Details
Magnetic materials
Magnetische Werkstoffe
Materiaux magnetiques
Magnetni materiali
General Information
e-Library Subscription
Create subscription and get permanent access to documents within 29.030 - Magnetic materials
Currently subscription includes documents marked with .We are working on making all documents available within the subscription.
- Draft45 pagesEnglish languagesale 10% offe-Library read for1 day
This standard provides the test methods for the electrical and magnetic properties of magnetic powder cores used for inductive components in electronics equipment, switch-mode power supplies and power conversion equipment, and introduces measuring principles, scope of application and matters needing attention for each method. The parameters used to characterize the magnetic powder cores include: inductance factor, effective permeability, complex relative permeability, temperature coefficient of permeability, frequency coefficient of permeability, DC bias characteristic, power loss, and quality factor. This standard is the basis for determining the characteristic parameters of magnetic powder cores.
- Draft45 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 62044-3:2023 is available as IEC 62044-3:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 62044-3:2023 specifies measuring methods for power loss and amplitude permeability of magnetic cores forming the closed magnetic circuits intended for use at high excitation levels in inductors, chokes, transformers and similar devices for power electronics applications. This second edition cancels and replaces the first edition published in 2000. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: addition of Annex F and Annex G.
- Standard93 pagesEnglish and French languagesale 15% off
IEC 63300:2023 provides the test methods for the electrical and magnetic properties of magnetic powder cores used for inductive components in electronics equipment, switch-mode power supplies and power conversion equipment, and introduces measuring principles, scope of application and matters of importance for each method.
The parameters used to characterize the magnetic powder cores include: inductance factor, effective permeability, complex relative permeability, temperature coefficient of permeability, frequency coefficient of permeability, DC bias characteristic, power loss, and quality factor. This document is the basis for determining the characteristic parameters of magnetic powder cores.
- Standard111 pagesEnglish and French languagesale 15% off
This part of IEC 60404 is applicable to surface insulation coatings on electrical steel strip and
sheet classified in IEC 60404-1-1.
This document defines the general principles and technical details of the tests for the
assessment of the thermal endurance of surface insulation coatings on electrical steel strip and
sheet.
The assessment is made by evaluating the change of a specified property of the surface
insulation coating due to a heat treatment at a specified temperature up to 850 °C for a specified
duration time up to 2 500 h. The specified property is measured at an ambient temperature of
(23 ± 5) °C both without heat treatment and after heat treatment.
This document is applicable to the following properties of surface insulation coatings:
– adhesion;
– surface insulation resistance;
– stacking factor.
This document is not applicable to other properties of surface insulation coatings, e.g. welding
properties, or to other effects, e.g. discoloration and off-gassing, which can be caused by
exposure to elevated temperatures.
NOTE Some of the tests take a very long time to perform and therefore they are often not appropriate for acceptance
tests of material supplied on a specific order.
- Standard16 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft13 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60404-12:2023 is applicable to surface insulation coatings on electrical steel strip and sheet classified in IEC 60404-1-1. This document defines the general principles and technical details of the tests for the assessment of the thermal endurance of surface insulation coatings on electrical steel strip and sheet. The assessment is made by evaluating the change of a specified property of the surface insulation coating due to a heat treatment at a specified temperature up to 850 °C for a specified duration time up to 2 500 h. The specified property is measured at an ambient temperature of (23 ± 5) °C both without heat treatment and after heat treatment. This edition includes the following significant technical changes with respect to the previous edition: 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.
- Standard16 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft13 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60404-12:2023 is applicable to surface insulation coatings on electrical steel strip and sheet classified in IEC 60404-1-1.
This document defines the general principles and technical details of the tests for the assessment of the thermal endurance of surface insulation coatings on electrical steel strip and sheet.
The assessment is made by evaluating the change of a specified property of the surface insulation coating due to a heat treatment at a specified temperature up to 850 °C for a specified duration time up to 2 500 h. The specified property is measured at an ambient temperature of (23 ± 5) °C both without heat treatment and after heat treatment.
This edition includes the following significant technical changes with respect to the previous edition:
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.
- Standard27 pagesEnglish and French languagesale 15% off
IEC 60404-3:2022 is available as IEC 60404-3:2022 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60404-3:2022 is applicable to grain-oriented and non-oriented electrical steel strip and sheet for measurement of AC magnetic properties at power frequencies. The object of this document is to define the general principles and the technical details of the measurement of the magnetic properties of electrical steel strip and sheet by means of a single sheet tester (SST). This edition includes the following significant technical changes with respect to the previous edition:
- Annex A was revised. The method of determining the yokes’ lamination resistance was added to Annex A;
- Annex B of the consolidated version of 2010 referred to calibration of the SST using the Epstein method. It was cancelled;
- Annex B (new), Annex C and Annex D were revised, they are for information only;
- Annex C was modified taking account of the new situation regarding P and R grades;
- Annex D was amended by addition of Clause D.4 on the numerical air flux compensation.
- Standard35 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft30 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60404-3:2022 is available as IEC 60404-3:2022 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60404-3:2022 is applicable to grain-oriented and non-oriented electrical steel strip and sheet for measurement of AC magnetic properties at power frequencies. The object of this document is to define the general principles and the technical details of the measurement of the magnetic properties of electrical steel strip and sheet by means of a single sheet tester (SST). This edition includes the following significant technical changes with respect to the previous edition: - Annex A was revised. The method of determining the yokes’ lamination resistance was added to Annex A; - Annex B of the consolidated version of 2010 referred to calibration of the SST using the Epstein method. It was cancelled; - Annex B (new), Annex C and Annex D were revised, they are for information only; - Annex C was modified taking account of the new situation regarding P and R grades; - Annex D was amended by addition of Clause D.4 on the numerical air flux compensation.
- Standard35 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft30 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies classification rules for metallic magnetic powder cores used in
inductive components fulfilling the requirements of the electronics industries.
This document addresses the following objectives for magnetic powder cores suppliers and
users:
– cross-reference between core materials from multiple suppliers;
– assistance to users in understanding the published technical data in catalogues when
comparing multiple suppliers;
– guidance to users in selecting the most applicable core for each application;
– establishing uniform benchmarks for suppliers for performance in the new development of
core material.
The numerical values given in this document are typical values of parameters of the related
material. Direct translation from the material specification into the core specification is not
always easy or possible.
Every detailed material and core specification will be agreed upon between the user and the
supplier.
- Standard14 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft11 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60404-3:2022 is available as IEC 60404-3:2022 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60404-3:2022 is applicable to grain-oriented and non-oriented electrical steel strip and sheet for measurement of AC magnetic properties at power frequencies. The object of this document is to define the general principles and the technical details of the measurement of the magnetic properties of electrical steel strip and sheet by means of a single sheet tester (SST). This edition includes the following significant technical changes with respect to the previous edition:
- Annex A was revised. The method of determining the yokes’ lamination resistance was added to Annex A;
- Annex B of the consolidated version of 2010 referred to calibration of the SST using the Epstein method. It was cancelled;
- Annex B (new), Annex C and Annex D were revised, they are for information only;
- Annex C was modified taking account of the new situation regarding P and R grades;
- Annex D was amended by addition of Clause D.4 on the numerical air flux compensation.
- Standard64 pagesEnglish and French languagesale 15% off
IEC 63299:2022 specifies classification rules for metallic magnetic powder cores used in inductive components fulfilling the requirements of the electronics industries. This document addresses the following objectives for magnetic powder cores suppliers and users: - cross-reference between core materials from multiple suppliers; - assistance to users in understanding the published technical data in catalogues when comparing multiple suppliers; - guidance to users in selecting the most applicable core for each application; - establishing uniform benchmarks for suppliers for performance in the new development of core material.
- Standard14 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft11 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60404-8-4:2022 is available as IEC 60404-8-4:2022 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60404-8-4:2022 defines the grades of cold-rolled non-oriented electrical steel strip and sheet in nominal thicknesses of 0,35 mm, 0,47 mm, 0,50 mm, 0,65 mm and 1,00 mm. In particular, it gives general requirements, magnetic properties, geometric characteristics, tolerances and technological characteristics, as well as inspection procedure. The nominal thickness 0,47 mm applies to the grades for use at 60 Hz only. This document applies to cold-rolled non-oriented electrical steel strip and sheet supplied in the fully-processed state, i.e. the final annealed condition, in coils or sheets, and intended for the construction of magnetic circuits. This document does not apply to materials supplied in the semi-processed state. This edition includes the following significant technical changes with respect to the previous edition:
- modification of terms and technical requirements concerning geometrical characteristics to be consistent with IEC 60404-9:2018;
- insertion of Table 3 - Tolerances on nominal thickness;
- change of the length of test specimen for determination of geometrical characteristics from 2 m to 1 m.
- Standard52 pagesEnglish and French languagesale 15% off
IEC 63299:2022 specifies classification rules for metallic magnetic powder cores used in inductive components fulfilling the requirements of the electronics industries. This document addresses the following objectives for magnetic powder cores suppliers and users:
- cross-reference between core materials from multiple suppliers;
- assistance to users in understanding the published technical data in catalogues when comparing multiple suppliers;
- guidance to users in selecting the most applicable core for each application;
- establishing uniform benchmarks for suppliers for performance in the new development of core material.
- Standard23 pagesEnglish and French languagesale 15% off
This part of IEC 60404 is applicable to grain-oriented electrical steel strip and sheet specified in IEC 60404-8-7 for the measurement of magnetostriction characteristics under an applied AC magnetic field at 50 Hz or 60Hz.
This document defines the general principles and technical details of the measurement of magnetostriction characteristics of grain-oriented electrical steel strip and sheet by means of a single sheet tester and an optical sensor.
NOTE 1 The accelerometer method [5] is also an established method for the measurement of magnetostriction.
However, it is more suited to the measurement of magnetostriction under an externally applied tensile or compressive stress, not zero stress, because it places a weight on the test specimen to prevent a deformation of the test specimen.
Since this document includes the measurement at zero stress, the optical sensor method is provided as the optimum method.
This document is applicable to the measurement of:
- the butterfly loop;
- the peak-to-peak value λp-p;
- the zero-to-peak value λ0-p.
The magnetostriction characteristics are determined for a sinusoidal induced secondary voltage, for a specified peak value of the magnetic polarization and at a specified magnetizing frequency.
NOTE 2 Throughout this document the term “magnetic polarization” is used as described in IEC 60050-121-11-54.
In some standards of the 60404 series, the term “magnetic flux density” is used.
- Standard48 pagesEnglish languagesale 10% offe-Library read for1 day
IEC corrected version
- Corrigendum4 pagesEnglish and French languagesale 10% offe-Library read for1 day
This part of IEC 60404 is applicable to grain-oriented electrical steel strip and sheet specified in IEC 60404-8-7 for the measurement of magnetostriction characteristics under an applied AC magnetic field at 50 Hz or 60Hz. This document defines the general principles and technical details of the measurement of magnetostriction characteristics of grain-oriented electrical steel strip and sheet by means of a single sheet tester and an optical sensor. NOTE 1 The accelerometer method [5] is also an established method for the measurement of magnetostriction. However, it is more suited to the measurement of magnetostriction under an externally applied tensile or compressive stress, not zero stress, because it places a weight on the test specimen to prevent a deformation of the test specimen. Since this document includes the measurement at zero stress, the optical sensor method is provided as the optimum method. This document is applicable to the measurement of: - the butterfly loop; - the peak-to-peak value λp-p; - the zero-to-peak value λ0-p. The magnetostriction characteristics are determined for a sinusoidal induced secondary voltage, for a specified peak value of the magnetic polarization and at a specified magnetizing frequency. NOTE 2 Throughout this document the term “magnetic polarization” is used as described in IEC 60050-121-11-54. In some standards of the 60404 series, the term “magnetic flux density” is used.
- Standard48 pagesEnglish languagesale 10% offe-Library read for1 day
IEC corrected version
- Corrigendum4 pagesEnglish and French languagesale 10% offe-Library read for1 day
IEC 60404-17:2021 is applicable to grain-oriented electrical steel strip and sheet specified in IEC 60404-8-7 for the measurement of magnetostriction characteristics under an applied AC magnetic field at 50 Hz or 60 Hz.
This document defines the general principles and technical details of the measurement of magnetostriction characteristics of grain-oriented electrical steel strip and sheet by means of a single sheet tester and an optical sensor.
This document is applicable to the measurement of:
the butterfly loop;
the peak-to-peak value λp-p;
the zero-to-peak value λ0-p. The magnetostriction characteristics are determined for a sinusoidal induced secondary voltage, for a specified peak value of the magnetic polarization and at a specified magnetizing frequency.
- Standard93 pagesEnglish and French languagesale 15% off
This part of IEC 60404 is applicable to electrical steel strip and sheet insulated by coating on one or both surfaces.
The object of this document is to define the general principles and technical details of the measurement of the surface insulation resistance of electrical steel strip and sheet.
NOTE This test is suitable for manufacturing and quality control in the application of insulation coatings.
- Standard15 pagesEnglish languagesale 10% offe-Library read for1 day
No scope available
- Amendment5 pagesEnglish languagesale 10% offe-Library read for1 day
This part of IEC 60404 is applicable to electrical steel strip and sheet insulated by coating on one or both surfaces. The object of this document is to define the general principles and technical details of the measurement of the surface insulation resistance of electrical steel strip and sheet. NOTE This test is suitable for manufacturing and quality control in the application of insulation coatings.
- Standard15 pagesEnglish languagesale 10% offe-Library read for1 day
No scope available
- Amendment5 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60404-13:2018 specifies the methods used for determining the resistivity, density and stacking factor of grain-oriented and non-oriented electrical steel strip and sheet. These quantities are necessary to establish the physical characteristics of the material. Moreover, the density is necessary to allow specified values of the magnetic polarization, resistivity and stacking factor to be determined. Since these properties are functions of temperature, the measurements will be made at an ambient temperature of (23 ±5) °C except when specified in this document. This edition includes the following significant technical changes with respect to the previous edition: the sequence of the density and resistivity sections is changed and the title of the document revised to reflect this; the van-der-Pauw method (Method R2) is also applicable to Epstein strip specimens; the gas pyknometer method is introduced, and the liquid immersion method and the calculation method based on the chemical composition are quoted; the requirements of the stacking factor section, such as the tolerance of the dimensions of the test specimen and the repeatability of measurement, are changed; an example of the apparatus for determination of the resistivity using a rectangular sheet, which was previously part of the main body of the text, is moved to constitute informative Annex A; an example of the determination of the density by using the gas pyknometer method is added as an informative Annex B; an example of the determination of density based on the calculation of silicon and aluminium contents is added as an informative Annex C.
- Standard27 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60404-11:2021 is applicable to electrical steel strip and sheet insulated by coating on one or both sides.
The object of this document is to define the general principles and technical details of the measurement of the surface insulation resistance of electrical steel strip and sheet.
NOTE This test is suitable for manufacturing and quality control in the application of insulation coatings.
This edition includes the following significant technical changes with respect to the previous edition:
Method B has been deleted and the measurement of individual currents through each contact button is enabled by Method A;
an improved arrangement of the test apparatus and the voltage stabilizing circuit for Method A, “Arrangement B”, is introduced.
an alternative layout using two pairs of contact assemblies in opposing position of the test specimen is introduced;
the restriction: “The same area of the test specimen shall not be used to test both sides.” has been deleted.
- Standard24 pagesEnglish and French languagesale 15% off
- Standard5 pagesEnglish and French languagesale 15% off
NEW!IEC 60404-6:2018 is available as IEC 60404-6:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60404-6:2018 specifies methods for the measurement of AC magnetic properties of soft magnetic materials, other than electrical steels and soft ferrites, in the frequency range 20 Hz to 100 kHz. The materials covered by this part of IEC 60404 include those speciality alloys listed in IEC 60404-8-6, amorphous and nano-crystalline soft magnetic materials, pressed and sintered and metal injection moulded parts such as are listed in IEC 60404-8-9, cast parts and magnetically soft composite materials. The object of this part is to define the general principles and the technical details of the measurement of the magnetic properties of magnetically soft materials by means of ring methods. For materials supplied in powder form, a ring test specimen is formed by the appropriate pressing method for that material. The measurement of the DC magnetic properties of soft magnetic materials is made in accordance with the ring method of IEC 60404-4. The determinations of the magnetic characteristics of magnetically soft components are made in accordance with IEC 62044-3. This edition includes the following significant technical changes with respect to the previous edition: a) adaption to modern measurement and evaluation methods, in particular the introduction of the widely spread digital sampling method for the acquisition and evaluation of the measured data; b)limitation of the frequency range up to 100 kHz; c) deletion of Clause 7 of the second edition that specified the measurement of magnetic properties using a digital impedance bridge; d) addition of a new Clause 7 on the measurement of the specific total loss by the wattmeter method, including an example of the application of the digital sampling method; e) addition of an informative annex on the technical details of the digital sampling technique for the determination of magnetic properties.
- Standard27 pagesEnglish languagesale 10% offe-Library read for1 day
IEC TR 63304:2021(E) describes the general principle and technical details of the methods of measurement of the DC magnetic properties of permanent magnet materials in an open magnetic circuit using a superconducting magnet (SCM).
This method is applicable to permanent magnet materials, such as those specified in IEC 60404-8-1, the properties of which are presumed homogeneous throughout their volume.
There are two methods:
– the SCM-Vibrating Sample Magnetometer (VSM) method;
– the SCM-Extraction method.
This document also describes methods to correct the influence of the self-demagnetizing field in the test specimen on the demagnetization curve measured in an open magnetic circuit. The magnetic properties are determined from the corrected demagnetization curve.
NOTE These SCM-methods can determine the magnetic properties of permanent magnet materials with coercivity higher than 2 MA/m. The methods of measurement in a closed magnetic circuit specified in IEC 60404-5 can lead to significant measurement error due to saturation effects in the pole pieces of yoke for the magnetic materials with coercivity higher than 1,6 MA/m (see IEC 60404-5).
- Technical report46 pagesEnglish languagesale 15% off
IEC 60404-8-11:2018 defines the grades of Fe-based amorphous strip delivered in the semi‑processed state, i.e. without final heat treatment, of nominal thickness 0,025 mm. Other nominal thicknesses in the range from 0,020 mm to 0,030 mm can be specified by agreement between the manufacturer and the purchaser at the time of enquiry and order. In particular, it gives general requirements, magnetic properties, geometric characteristics, tolerances and technological characteristics, as well as inspection procedures. This document applies to the rapidly-solidified Fe-based amorphous strip supplied in coils with as-cast edges and intended for the construction of magnetic circuits. The grades are grouped into two classes: - conventional grades; - high permeability grades. They correspond to Class I1 of IEC 60404-1.
- Standard25 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60404-16:2018 is applicable to Fe-based amorphous strips specified in IEC 60404-8-11 for the measurement of AC magnetic properties at frequencies up to 400 Hz. The object of this part is to define the general principles and technical details of the measurement of the magnetic properties of Fe-based amorphous strips by means of a single sheet tester.
- Standard29 pagesEnglish languagesale 10% offe-Library read for1 day
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.
- Standard21 pagesEnglish languagesale 15% off
IEC 60404-8-5:2020(E) defines the grades of electrical steel strip and sheet with specified mechanical properties and magnetic polarization. In particular, it gives general requirements, mechanical properties, magnetic polarization, geometric characteristics, tolerances and technological characteristics, as well as inspection procedures.
This document applies to electrical steel strip and sheet intended for the construction of poles and rims of rotating electrical machines.
The grades are grouped into two classes according to their manufacturing process:
- hot-rolled grades;
- cold-rolled grades.
They correspond to Class D21 of IEC 60404-1.
This edition includes the following significant technical changes with respect to the previous edition:
a) extension of the range of products to include the improved grades;
b) division of "flatness" into "edge wave (wave factor)" and "residual curvature" in consistent with IEC 60404-9;
c) change length of test specimen for determinations of geometrical characters from 2 m to 1 m.
- Standard19 pagesEnglish languagesale 15% off
IEC 60404-7 specifies a method of measurement of the coercivity of magneticmaterials in an open magnetic circuit.This document is applicable to all magnetic materials with coercivities from 0,2 A/m to160 kA/m.NOTE Examples of magnetic materials covered by this document are amorphous alloys, nanocrystalline alloys, allsoftmagnetic crystalline materials (e.g. Fe, FeSi-, CoFe- and FeNi-alloys), soft ferrites, hard metals, semi-hardmagnetic alloys (e.g. FeCoTiAl-, FeCoV-, FeCrCo- and AlNiCo-alloys) [1]1.Special precautions are to be taken in measuring coercivities below 40 A/m, in materials withhigh conductivity and in test specimens which have a shape different from ellipsoids (seeAnnex A).
- Standard19 pagesEnglish languagesale 10% offe-Library read for1 day
This part of IEC 60404 specifies a method of measurement of the coercivity of magnetic materials in an open magnetic circuit. This document is applicable to all magnetic materials with coercivities from 0,2 A/m to 160 kA/m. NOTE Examples of magnetic materials covered by this document are amorphous alloys, nanocrystalline alloys, all softmagnetic crystalline materials (e.g. Fe, FeSi-, CoFe- and FeNi-alloys), soft ferrites, hard metals, semi-hard magnetic alloys (e.g. FeCoTiAl-, FeCoV-, FeCrCo- and AlNiCo-alloys) [1]1. Special precautions are to be taken in measuring coercivities below 40 A/m, in materials with high conductivity and in test specimens which have a shape different from ellipsoids (see Annex A).
- Standard19 pagesEnglish languagesale 10% offe-Library read for1 day
- Standard3 pagesEnglish and French languagesale 15% off
IEC 60404-8-6:2016 specifies the general requirements, magnetic properties, geometric characteristics and tolerances as well as inspection procedures for pure iron, silicon-iron, nickel-iron and cobalt-iron. The materials are in the form of bar, billet, sheet, strip or wire. The alloys covered correspond to those defined by classes A, C1, C2, E1 to E4 and F1 to F3 in IEC 60404-1. This edition includes the following significant technical changes with respect to the previous edition: Removal of Table 2b).
- Standard24 pagesEnglish languagesale 10% offe-Library read for1 day
- Amendment8 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60335-2-25:2020 is available as IEC 60335-2-25:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60335-2-25:2019 deals with the safety of microwave ovens for household and similar use, their rated voltage being not more than 250 V.
This standard also deals with combination microwave ovens, for which Annex AA is applicable.
This standard also deals with microwave ovens intended to be used on board ships, for which Annex BB is applicable.
Appliances not intended for normal household use but which nevertheless may be a source of danger to the public, such as appliances intended to be used by laymen in shops, in light industry and on farms, are within the scope of this standard. However, if the appliance is intended to be used professionally to process food for commercial purposes, the appliance is not considered to be for household and similar use only.
As far as is practicable, this standard deals with the common hazards presented by appliances that are encountered by all persons in and around the home. However, in general, it does not take into account
– persons (including children) whose physical, sensory or mental capabilities or lack of experience and knowledge prevents them from using the appliance safely without supervision or instruction;
– children playing with the appliance.
Attention is drawn to the fact that
– for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements can be necessary;
– in many countries, additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labour and similar authorities.
This standard does not apply to
– commercial microwave ovens (IEC 60335-2-90);
– industrial microwave heating equipment (IEC 60519-6);
– appliances for medical purposes (IEC 60601);
– appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas).
This seventh edition cancels and replaces the sixth edition published in 2010, Amendment 1:2014 and Amendment 2:2015. This edition constitutes a technical revision.
This edition includes the following significant changes with respect to the sixth edition:
– 11.7 and 19.13 are improved in clarity;
– in 19.102, a note is converted into normative text;
– 19.101 is improved with an alternative measurement method;
– 22.121 is improved with requirements for simultaneous activation of heating elements and motors;
– 15.2, 15.101, 21, 22.102, 22.112, 22.119, 22.120, 24.101 and 27.1 are improved in clarity;
– Annex A has editorial improvements and feasible limits of deviations.
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its amendments. It was established on the basis of the fifth edition (2010) of that standard.
- Standard75 pagesEnglish and French languagesale 15% off
IEC 60404-1:2016 is available as IEC 60404-1:2016 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60404-1:2016(E) is intended to classify commercially available magnetic materials. The term "magnetic materials" denotes substances where the application requires the existence of ferromagnetic or ferrimagnetic properties. The classification of magnetic materials is based upon the generally recognized existence of two main groups of products: - soft magnetic materials (coercivity less than or equal to 1 000 A/m); - hard magnetic materials (coercivity greater than 1 000 A/m). This edition includes the following significant technical changes with respect to the previous edition: a) Removal of all tables and values describing typical properties of the material to be consistent with the aim of the document to be a classification and not a specification. b) Enlargement of the Ni content for the classes E1 and E3. c) Enlargement of the Co content for the classes F3. d) Addition of a new class: U5 bonded rare earth-iron-nitrogen magnets.
- Standard48 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 61333:2019 specifies marking locations and a coding system of marking on ferrite cores. An alphanumerical marking printed or attached to cores reduces the risk of incorrect assembly, mixing of materials and/or mixing of gapped cores on an assembly line. The markings of the inductance factor AL value or of the gap length are especially important to avoid this kind of problem, and their coding system is specified in this document.
This edition includes the following significant technical changes with respect to the previous edition：
a) the title of the document was changed;
b) the scope of this document was expanded;
c) the marking position instructions for ring cores, planar cores, RM-cores, PQ-cores and pot-cores were added in Clause 4 with a few additional descriptions;
d) the four-digit-maximum limit of material identification code has been deleted in 5.2;
e) in Table 1, the unit of AL has been changed from "nH" to "nH/N2".
- Standard17 pagesEnglish and French languagesale 15% off
IEC TS 61980-3:2019 applies to the equipment for the magnetic field wireless power transfer (MF-WPT) of electric power from the supply network to electric road vehicles for purposes of supplying electric energy to the RESS (rechargeable energy storage system) and/or other on-board electrical systems. The MF-WPT system operates at standard supply voltages ratings per IEC 60038 up to 1 000 V AC and up to 1 500 V DC The power transfer takes place while the electric vehicle (EV) is stationary.
This document also applies to MF-WPT equipment supplied from on-site storage systems (e.g. buffer batteries) at standard supply voltages ratings per IEC 60038 up to 1 000 V AC and up to 1 500 V DC.
The aspects covered in this document include
– the characteristics and operating conditions,
– the required level of electrical safety,
– requirements for basic communication for safety and process matters if required by a MF-WPT system,
– requirements for positioning to assure efficient and safe MF-WPT power transfer, and
– specific EMC requirements for MF-WPT systems.
The following aspects are under consideration for future documents:
– requirements for two- and three-wheel vehicles,
– requirements for MF-WPT systems supplying power to EVs in motion, and
– requirements for bidirectional power transfer.
This standard does not apply to
– safety aspects related to maintenance, and
– trolley buses, rail vehicles and vehicles designed primarily for use off-road.
- Technical specification107 pagesEnglish languagesale 15% off
IEC 60747-18-1:2019 (E) specifies the test methods and data analysis for the calibration of lens-free CMOS photonic array sensors. This document includes the test conditions of each process, configuration of lens-free CMOS photonic array sensors, statistical analysis of test data, calibration for planarization and linearity, and test reports.
- Standard26 pagesEnglish languagesale 15% off
IEC 60404-7:2019 specifies a method of measurement of the coercivity of magnetic materials in an open magnetic circuit. This document is applicable to all magnetic materials with coercivities from 0,2 A/m to 160 kA/m.
This edition includes the following significant technical changes with respect to the previous edition:
Clause 1: The scope includes a more detailed description of the magnetic materials which applies to this standard;
Clause 4: Figure 2 – circuit diagram for methods A and B was simplified and the fluxgate probes inside the solenoid have been added;
Clause 7: Compensation for the earth’s magnetic field and for static and dynamic magnetic noise fields has been added;
Clause 8: Magnetic shielding of the measuring region has been added;
9.2.2: The measuring methods for local and integral measurement of the flux in the test specimen have been separated and the limitations in size and shape of the test specimen have been considered.
9:3: The method C with a VSM (Vibrating Sample Magnetometer) has been moved from 9.3 to the Annex B.
The term "complex shaped test specimen" has been replaced in several clauses by "test specimen different from ellipsoids".
The character of Annex A has been changed from “informative” to “normative”.
- Standard34 pagesEnglish and French languagesale 15% off
IEC - Corrected version
- Corrigendum3 pagesEnglish languagesale 10% offe-Library read for1 day
IEC - Corrected version
- Corrigendum4 pagesEnglish languagesale 10% offe-Library read for1 day
IEC - Corrected version
- Corrigendum3 pagesEnglish languagesale 10% offe-Library read for1 day
IEC - Corrected version
- Corrigendum4 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60404-9:2018 specifies the measurement and test methods for the determination of the following geometrical characteristics of electrical steel strip and sheet:
– edge wave (wave factor);
– residual curvature;
– edge camber;
– deviation from the shearing line (internal stress);
– burr height.
This document applies to electrical steel strip and sheet intended for the construction of magnetic circuits and corresponding to Classes B2, C21, C22 and C23 of IEC 60404-1.
This edition includes the following significant technical changes with respect to the previous edition:
a. revision of terms and definitions;
b. specification of the length of test specimens for the determinations of edge wave (wave factor) and edge camber;
c. addition of the horizontal method for the determination of residual curvature, and a note that informs about a safety concern of the vertical method;
d. clarification that the burr height was characterized by the maximum value;
e. addition of the measuring procedure using a hand-held micrometer to determine the burr height.
- Standard33 pagesEnglish and French languagesale 15% off
This part of IEC 60404 specifies the methods used for determining the resistivity, density and
stacking factor of grain-oriented and non-oriented electrical steel strip and sheet. These
quantities are necessary to establish the physical characteristics of the material. Moreover,
the density is necessary to allow specified values of the magnetic polarization, resistivity and
stacking factor to be determined.
Since these properties are functions of temperature, the measurements will be made at an
ambient temperature of (23 ±5) °C except when specified in this document.
- Standard27 pagesEnglish languagesale 10% offe-Library read for1 day
IEC - Corrected version
- Corrigendum3 pagesEnglish languagesale 10% offe-Library read for1 day