EN IEC 63182-2:2020

SLOVENSKI STANDARD
01-januar-2021
Jedra iz magnetnih prahov - Smernice o merah in mejnih vrednostih površinskih
nepravilnosti - 2. del: Obročasta jedra
Magnetic powder cores - Guidelines on dimensions and the limits of surface irregularities
- Part 2: Ring-cores
Ta slovenski standard je istoveten z: EN IEC 63182-2:2020
ICS:
29.100.10 Magnetne komponente Magnetic components
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 63182-2

NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2020
ICS 29.100.10
English Version
Magnetic powder cores - Guidelines on dimensions and the
limits of surface irregularities - Part 2: Ring-cores
(IEC 63182-2:2020)
Noyaux en poudre magnétique comprimée - Lignes Magnetische Pulverkerne - Leitfaden zu Maßen und
directrices concernant les dimensions et les limites des Grenzen von Oberflächenbeschädigungen - Teil 2:
irrégularités de surface - Partie 2: Tores Ringkerne
(IEC 63182-2:2020) (IEC 63182-2:2020)
This European Standard was approved by CENELEC on 2020-11-03. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 63182-2:2020 E

European foreword
The text of document 51/1348/FDIS, future edition 1 of IEC 63182-2, prepared by IEC/TC 51
"Magnetic components, ferrite and magnetic powder materials" was submitted to the IEC-CENELEC
parallel vote and approved by CENELEC as EN IEC 63182-2:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-08-03
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-11-03
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 63182-2:2020 was approved by CENELEC as a European
Standard without any modification.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 63182-1 -  Magnetic powder cores - Guidelines on EN IEC 63182-1 -
dimensions and the limits of surface
irregularities - Part 1: General specification

IEC 63182-2 ®
Edition 1.0 2020-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Magnetic powder cores – Guidelines on dimensions and the limits of surface

irregularities –
Part 2: Ring-cores
Noyaux en poudre magnétique comprimée – Lignes directrices concernant

les dimensions et les limites des irrégularités de surface –

Partie 2: Tores
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.100.10 ISBN 978-2-8322-8898-6

– 2 – IEC 63182-2:2020 © IEC 2020
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Primary standards . 5
4.1 General . 5
4.2 Dimension descriptions . 6
4.3 Dimensions of ring-cores . 6
4.4 Chamfered edges. 6
4.5 Effective parameter values . 7
5 Limits of surface irregularities . 8
5.1 Cracks . 8
5.2 Peeling . 8
5.3 Pinholes . 9
5.4 Sharp chamfered edge . 9
5.5 Bubbles . 10
5.6 Unevenness . 10
Annex A (normative) Calculation method for the effective parameters of ring-cores . 11

Figure 1 – Dimensions of ring-cores . 6
Figure 2 – Chamfered edges of ring-cores . 6
Figure 3 – Cracks . 8
Figure 4 – Peeling. 9
Figure 5 – Pinholes . 9
Figure 6 – Sharp chamfered edge . 9
Figure 7 – Bubbles . 10
Figure 8 – Unevenness . 10

Table 1 – Dimensions descriptions . 6
Table 2 – Dimensions and geometrically calculated values for ring-cores . 7

IEC 63182-2:2020 © IEC 2020 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MAGNETIC POWDER CORES – GUIDELINES ON DIMENSIONS
AND THE LIMITS OF SURFACE IRREGULARITIES –

Part 2: Ring-cores
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 63182-2 has been prepared by IEC technical committee 51:
Magnetic components, ferrite and magnetic powder materials.
The text of this International Standard is based on the following documents:
FDIS Report on voting
51/1348/FDIS 51/1352/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – IEC 63182-2:2020 © IEC 2020
A list of all parts of IEC 63182 series, published under the general title Magnetic powder
cores – Guidelines on dimensions and the limits of surface irregularities, can be found on the
IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IEC 63182-2:2020 © IEC 2020 – 5 –
MAGNETIC POWDER CORES – GUIDELINES ON DIMENSIONS
AND THE LIMITS OF SURFACE IRREGULARITIES –

Part 2: Ring-cores
1 Scope
This part of IEC 63182 specifies the dimensions that are of importance for mechanical
interchangeability for a preferred range of ring-cores (also called toroids) made of magnetic
powder, the effective parameter values to be used in calculations involving them, and gives
guidelines on allowable limits of surface irregularities applicable to coated ring-cores.
The sel
...