EN IEC 61007:2020

Transformers and inductors for use in electronic and telecommunication equipment - Measuring methods and test procedures

IEC 61007:2020 describes a number of tests for use in determining the significant parameters and performance characteristics of transformers and inductors for use in electronics and telecommunication equipment. These test methods are designed primarily for transformers and inductors used in all types of electronics applications that can be involved in any specification for such components. Even though these tests can be useful to the other types of transformers used in power distribution applications in utilities, industry, and others, the tests discussed in this document can supplement or complement the tests but are not intended to replace the tests in standards for transformers. Some of the tests described are intended for qualifying a product for a specific application, while others are test practices used for manufacturing and customer acceptance testing. The test methods described here include those parameters most commonly used in the electronics transformer and inductor industry: electric strength, resistance, power loss, inductance, impedance, balance, transformation ratio and many others used less frequently. This edition includes the following significant technical changes with respect to the previous edition: a) scope: the application of the scope of IEC 61007 was extended; b) Clause 2: added new references and updated the references; c) Clause 3: new definitions were added in 3.3, and in 3.7 the voltage-time product was redefined; d) test procedures were updated; e) environmental test procedures: new references were added; f) Annexes A to G were added.

Transformatoren und Drosseln für die Anwendung in elektronischen und nachrichtentechnischen Einrichtungen - Messmethoden und Prüfverfahren

Transformateurs et inductances utilisés dans les équipements électroniques et de télécommunications - Méthodes de mesure et procédures d'essais

L'IEC 61007:2020 décrit plusieurs essais utilisés pour la détermination des paramètres importants et des caractéristiques de fonctionnement des transformateurs et inductances utilisés dans les équipements électroniques et de télécommunications. Ces méthodes d'essai sont principalement conçues pour les transformateurs et inductances utilisés dans tous les types d'applications électroniques qui peuvent être employés dans toute spécification de ces composants. Bien que ces essais puissent être utiles pour d'autres types de transformateurs utilisés dans les applications de distribution de puissance dans les services publics, dans l'industrie et d'autres secteurs, les essais traités dans le présent document peuvent s'ajouter aux essais décrits dans les normes relatives aux transformateurs ou les compléter, mais ne sont pas destinés à les remplacer. Certains des essais décrits visent à qualifier un produit pour une application spécifique, tandis que d'autres sont des pratiques d'essai utilisées lors de la fabrication et pour les essais d'acceptation client. Les méthodes d'essai décrites ici comprennent les paramètres les plus couramment utilisés dans l'industrie des transformateurs et inductances électroniques: rigidité diélectrique, résistance, perte de puissance, inductance, impédance, équilibre, rapport de transformation, et de nombreux autres paramètres utilisés moins fréquemment. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) domaine d'application: extension du domaine d'application de l'IEC 61007; b) Article 2: ajout de nouvelles références et mise à jour des références; c) Article 3: ajout de nouvelles définitions en 3.3, et redéfinition du produit tension-temps en 3.7; d) mise à jour des procédures d'essai; e) procédures d'essais d'environnement: ajout de nouvelles références; f) ajout des Annexes A à G.

Transformatorji in induktorji za uporabo v elektronski in telekomunikacijski opremi - Metode merjenja in preskusni postopki

General Information

• Status: Published
• Publication Date: 03-Sep-2020
• ICS: 29.100.10 - Magnetic components
• ICS: 29.180 - Transformers. Reactors
• Technical Committee: CLC/SR 51 - Magnetic components and ferrite materials
• Drafting Committee: IEC/TC 51 - IEC_TC_51
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 04-Sep-2020
• Completion Date: 04-Sep-2020
• Ref Project: SIST EN IEC 61007:2020 - Transformers and inductors for use in electronic and telecommunication equipment - Measuring methods and test procedures

Relations

• Replaces: EN 61007:1997 - Transformers and inductors for use in electronic and telecommunication equipment - Measuring methods and test procedures
• Effective Date: 25-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2020
Nadomešča:
SIST EN 61007:2002
Transformatorji in induktorji za uporabo v elektronski in telekomunikacijski opremi
- Metode merjenja in preskusni postopki
Transformers and inductors for use in electronic and telecommunication equipment -
Measuring methods and test procedures
Transformatoren und Drosseln für die Anwendung in elektronischen und
nachrichtentechnischen Einrichtungen - Meßmethoden und Prüfverfahren
Transformateurs et inductances utilisés dans les équipements électroniques et de
télécommunications - Méthodes de mesure et procédures d'essais
Ta slovenski standard je istoveten z: EN IEC 61007:2020
ICS:
29.180 Transformatorji. Dušilke Transformers. Reactors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61007

NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2020
ICS 29.180; 29.100.10 Supersedes EN 61007:1997 and all of its amendments
and corrigenda (if any)
English Version
Transformers and inductors for use in electronic and
telecommunication equipment - Measuring methods and test
procedures
(IEC 61007:2020)
Transformateurs et inductances utilisés dans les Transformatoren und Drosseln für die Anwendung in
équipements électroniques et de télécommunications - elektronischen und nachrichtentechnischen Einrichtungen -
Méthodes de mesure et procédures d'essais Messmethoden und Prüfverfahren
(IEC 61007:2020) (IEC 61007:2020)
This European Standard was approved by CENELEC on 2020-08-24. 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 61007:2020 E
European foreword
The text of document 51/1319/CDV, future edition 3 of IEC 61007, 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 61007:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-05-24
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-08-24
document have to be withdrawn
This document supersedes EN 61007:1997 and all of its amendments and corrigenda (if any).
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 61007:2020 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 61000-2-2 NOTE Harmonized as EN 61000-2-2
IEC 61000-3-12 NOTE Harmonized as EN 61000-3-12
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 60050 series International Electrotechnical Vocabulary - -
IEC 60068-1 2013 Environmental testing - Part 1: General EN 60068-1 2014
and guidance
IEC 60068-2-1 -  Environmental testing - Part 2-1: Tests - EN 60068-2-1 -
Test A: Cold
IEC 60068-2-2 -  Environmental testing - Part 2-2: Tests - EN 60068-2-2 -
Test B: Dry heat
IEC 60068-2-6 -  Environmental testing - Part 2-6: Tests - EN 60068-2-6 -
Test Fc: Vibration (sinusoidal)
IEC 60068-2-7 -  Basic environmental testing procedures - EN 60068-2-7 -
Part 2-7: Tests - Test Ga and guidance:
Acceleration, steady state
IEC 60068-2-10 -  Environmental testing - Part 2-10: Tests - EN 60068-2-10 -
Test J and guidance: Mould growth
IEC 60068-2-13 -  Basic environmental testing procedures - EN 60068-2-13 -
Part 2-13: Tests - Test M: Low air pressure
IEC 60068-2-14 -  Environmental testing - Part 2-14: Tests - EN 60068-2-14 -
Test N: Change of temperature
IEC 60068-2-17 -  Basic environmental testing procedures - EN 60068-2-17 -
Part 2-17: Tests - Test Q: Sealing
IEC 60068-2-20 -  Environmental testing - Part 2-20: Tests - EN 60068-2-20 -
Test T: Test methods for solderability and
resistance to soldering heat of devices with
leads
IEC 60068-2-21 -  Environmental testing - Part 2-21: Tests - EN 60068-2-21 -
Test U: Robustness of terminations and
integral mounting devices
IEC 60068-2-27 -  Environmental testing - Part 2-27: Tests - EN 60068-2-27 -
Test Ea and guidance: Shock
Publication Year Title EN/HD Year
IEC 60068-2-30 -  Environmental testing - Part 2-30: Tests - EN 60068-2-30 -
Test Db: Damp heat, cyclic (12 h + 12 h
cycle)
IEC 60068-2-42 -  Environmental testing - Part 2-42: Tests - EN 60068-2-42 -
Test Kc: Sulphur dioxide test for contacts
and connections
IEC 60068-2-45 -  Basic environmental testing procedures - EN 60068-2-45 -
Part 2-45: Tests - Test XA and guidance:
Immersion in cleaning solvents
IEC 60068-2-52 -  Environmental testing – Part 2-52: Tests – EN IEC 60068-2--
Test Kb: Salt mist, cyclic (sodium chloride52
solution)
IEC 60068-2-78 -  Environmental testing - Part 2-78: Tests - EN 60068-2-78 -
Test Cab: Damp heat, steady state
IEC 60270 -  High-voltage test techniques - Partial EN 60270 -
discharge measurements
IEC 60695-11-2 -  Fire hazard testing -- Part 11-2: Test - -
flames - 1 kW nominal premixed flame:
Apparatus, confirmatory test arrangement
and guidance
IEC 60695-11-5 -  Fire hazard testing - Part 11-5: Test flames EN 60695-11-5 -
- Needle-flame test method - Apparatus,
confirmatory test arrangement and
guidance
IEC 61672-1 -  Electroacoustics - Sound level meters - EN 61672-1 -
Part 1: Specifications
IEC 61007 ®
Edition 3.0 2020-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Transformers and inductors for use in electronic and telecommunication

equipment – Measuring methods and test procedures

Transformateurs et inductances utilisés dans les équipements électroniques et

de télécommunications – Méthodes de mesure et procédures d'essais

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.100.10; 29.180 ISBN 978-2-8322-8620-3

– 2 – IEC 61007:2020 © IEC 2020
CONTENTS
FOREWORD . 6
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 Test procedures . 13
4.1 Test and measurement conditions . 13
4.1.1 General . 13
4.1.2 Measurement uncertainty. 16
4.1.3 Alternative test methods . 16
4.2 Visual inspection . 16
4.2.1 General . 16
4.2.2 Safety screen position . 16
4.2.3 Quality of joints . 16
4.3 Dimensioning and gauging procedure . 19
4.4 Electrical test procedures . 19
4.4.1 Winding resistance . 19
4.4.2 Insulation tests . 20
4.4.3 Losses . 23
4.4.4 Inductance . 27
4.4.5 Unbalance . 27
4.4.6 Capacitance . 32
4.4.7 Transformation ratios. 35
4.4.8 Resonant frequency . 41
4.4.9 Signal transfer characteristics . 42
4.4.10 Cross-talk . 46
4.4.11 Frequency response . 47
4.4.12 Pulse characteristics . 48
4.4.13 Voltage-time product rating . 49
4.4.14 Total harmonic distortion . 50
4.4.15 Voltage regulation . 51
4.4.16 Temperature rise . 52
4.4.17 Surface temperature . 53
4.4.18 Polarity . 54
4.4.19 Screens . 56
4.4.20 Noise . 57
4.4.21 Corona tests . 58
4.4.22 Magnetic fields . 58
4.4.23 Inrush current . 61
4.5 Environmental test procedures . 61
4.5.1 General . 61
4.5.2 Soldering . 61
4.5.3 Robustness of terminations and integral mounting devices . 61
4.5.4 Shock . 61
4.5.5 Bump . 62
4.5.6 Vibration (sinusoidal) . 62
4.5.7 Acceleration, steady state .
...