Electromagnetic compatibility (EMC) - Part 4-18: Testing and measurement techniques - Damped oscillatory wave immunity test

This part of IEC 61000 focuses on the immunity requirements and test methods for electrical and electronic equipment, under operational conditions, with regard to: a) repetitive slow damped oscillatory waves occurring mainly in power, control and signal cables installed in high voltage and medium voltage (HV/MV) substations; b) repetitive fast damped oscillatory waves occurring mainly in power, control and signal cables installed in gas insulated substations (GIS) and in some cases also air insulated substations (AIS) or in any installation due to high-altitude electromagnetic pulse (HEMP) phenomena. The object of this document is to establish a common and reproducible reference for evaluating the immunity of electrical and electronic equipment when subjected to damped oscillatory waves on supply, signal, control and earth ports. The test method documented in this part of IEC 61000 describes a consistent method to assess the immunity of an equipment or system against a defined phenomenon. NOTE As described in IEC Guide 107, this is a basic EMC publication for use by product committees of the IEC. As also stated in Guide 107, the IEC product committees are responsible for determining whether this immunity test standard is applied or not, and if applied, they are responsible for determining the appropriate test levels and performance criteria. 1 The document defines: – test voltage and current waveforms; – ranges of test levels; – test equipment; – calibration and verification procedures of test equipment; – test setups; – test procedure.

Elektromagnetische Verträglichkeit (EMV) - Teil 4-18: Prüf- und Messverfahren - Prüfung der Störfestigkeit gegen gedämpft schwingende Wellen

Compatibilité électromagnétique (CEM) - Partie 4-18: Techniques d'essai et de mesure - Essai d'immunité à l'onde oscillatoire amortie

IEC 61000-4-18: 2019 traite des exigences d'immunité et des méthodes d'essai des matériels électriques et électroniques dans des conditions d'exploitation, vis-à-vis: a) des ondes oscillatoires amorties lentes répétitives se manifestant principalement sur les câbles d’alimentation, de commande et de signal installés dans les postes à haute et à moyenne tension (HT/MT); b) des ondes oscillatoires amorties rapides répétitives se produisant principalement sur les câbles d'alimentation, de commande et de signal installés dans les postes métalliques sous enveloppes à isolation gazeuse (GIS) et dans certains cas également dans les postes à isolation par air (AIS) ou toute installation du fait des phénomènes d’impulsion électromagnétique à haute altitude (IEMN-HA). Le présent document a pour objet d'établir une référence commune reproductible dans le but d'évaluer l’immunité des matériels électriques et électroniques, quand ils sont soumis aux ondes oscillatoires amorties sur des accès d’alimentation, de signal, de commande et par les bornes de terre. La méthode d'essai documentée dans cette partie de l’IEC 61000 décrit une méthode logique en vue d'évaluer l'immunité d'un équipement ou d'un système vis-à-vis d'un phénomène donné.NOTE Comme décrit dans le Guide 107 de l’IEC, il s’agit d’une publication fondamentale en CEM pour une utilisation par les comités de produits de l’IEC. Comme indiqué également dans le Guide 107, les comités de produits de l’IEC sont chargés de déterminer si cette norme d’essai d’immunité est appliquée ou non. Si tel est le cas, il leur incombe de déterminer les niveaux d’essai et les critères d’aptitude à la fonction appropriés. Le document définit: la tension d'essai et les formes d'ondes de courant; les plages de niveaux d'essais; le matériel d'essai; les procédures d’étalonnage et de vérification du matériel d'essai; les montages d'essai; une procédure d’essai. Cette deuxième édition annule et remplace la première édition parue en 2006 et l'Amendement 1:2010. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) ajout d’une modélisation mathématique de la forme d’onde oscillatoire amortie; b) nouvelle Annexe B sur l’incertitude de mesure; c) ajout d’un CDN à grande vitesse; d) ajout des procédures d’étalonnage pour les CDN; e) ajout de l’utilisation de la pince de couplage capacitive sur les lignes d’interconnexion pour les ondes oscillatoires amorties rapides; f) ajout d’une procédure d'essai pour les convertisseurs continu/continu en cas de non-fonctionnement du CDN; g) nouvelle Annexe C sur les problèmes liés à l’alimentation des EUT équipés de convertisseurs continu/continu en entrée. Mots clés : exigences d'immunité et des méthodes d'essai des matériels électriques et électroniques Le contenu du corrigendum d'août 2019 a été pris en considération dans cet exemplaire.

Elektromagnetna združljivost (EMC) - 4-18. del: Preskusne in merilne tehnike - Preskus odpornosti proti nihajnemu valu

Ta del standarda IEC 61000 se osredotoča na zahteve glede odpornosti ter preskusne metode za električno in elektronsko opremo pri obratovalnih pogojih v zvezi z naslednjim:
a) ponavljajoči se počasni pridušeni nihajni valovi, ki se pojavljajo predvsem v napajalnih, krmilnih in signalnih kablih v visokonapetostnih ter srednjenapetostnih (HV/MV) postajah;
b) ponavljajoči se hitri pridušeni nihajni valovi, ki se pojavljajo predvsem v napajalnih, krmilnih in signalnih kablih v s plinom izoliranih postajah (GIS) ter v nekaterih primerih tudi v z zrakom izoliranih postajah (AIS) ali v kateri koli inštalaciji zaradi pojava elektromagnetnih impulzov z velikih višin (HEMP).
Cilj tega dokumenta je vzpostaviti skupno in ponovljivo sklicevanje za oceno odpornosti električne ter elektronske opreme, podvržene pridušenim nihajnim valovom na napajalnih, signalnih, krmilnih in ozemljitvenih vratih. Preskusna metoda, dokumentirana v tem delu standarda IEC 61000, opisuje skladno metodo za oceno odpornosti opreme ali sistema proti opredeljenemu pojavu.
OPOMBA: To je osnovna objava o elektromagnetni združljivosti, ki jo uporabljajo tehnični odbori v okviru Mednarodne elektrotehniške komisije (IEC), kot je opisano v vodilu 107 Mednarodne elektrotehniške komisije.
Poleg tega je v vodilu 107 navedeno, da so tehnični odbori v okviru Mednarodne elektrotehniške komisije odgovorni za določitev morebitne uporabe tega standarda s preskusom odpornosti, v primeru uporabe pa so odgovorni za določitev ustreznih preskusnih ravni in meril učinkovitosti. 1
Dokument določa:
– preskusno napetost in valovno obliko toka;
– obseg preskusnih ravni;
– opremo za preskušanje;
– postopke za umerjanje in preverjanje preskusne opreme;
– postavitve za preskušanje;
– preskusni postopek.

General Information

Status
Published
Publication Date
04-Jul-2019
Current Stage
6060 - Document made available
Due Date
05-Jul-2019
Completion Date
05-Jul-2019

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SLOVENSKI STANDARD
SIST EN IEC 61000-4-18:2019
01-september-2019
Nadomešča:
SIST EN 61000-4-18:2007
SIST EN 61000-4-18:2007/A1:2011
Elektromagnetna združljivost (EMC) - 4-18. del: Preskusne in merilne tehnike -
Preskus odpornosti proti nihajnemu valu

Electromagnetic compatibility (EMC) - Part 4-18: Testing and measurement techniques -

Damped oscillatory wave immunity test

Elektromagnetische Verträglichkeit (EMV) - Teil 4-18: Prüf- und Messverfahren - Prüfung

der Störfestigkeit gegen gedämpft schwingende Wellen

Compatibilité électromagnétique (CEM) - Partie 4-18: Techniques d'essai et de mesure -

Essai d'immunité à l'onde oscillatoire amortie
Ta slovenski standard je istoveten z: EN IEC 61000-4-18:2019
ICS:
33.100.20 Imunost Immunity
SIST EN IEC 61000-4-18:2019 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 61000-4-18:2019
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SIST EN IEC 61000-4-18:2019
EUROPEAN STANDARD EN IEC 61000-4-18
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2019
ICS 33.100.20 Supersedes EN 61000-4-18:2007
English Version
Electromagnetic compatibility (EMC) - Part 4-18: Testing and
measurement techniques - Damped oscillatory wave immunity test
(IEC 61000-4-18:2019)

Compatibilité électromagnétique (CEM) - Partie 4-18: Elektromagnetische Verträglichkeit (EMV) - Teil 4-18: Prüf-

Techniques d'essai et de mesure - Essai d'immunité à und Messverfahren - Prüfung der Störfestigkeit gegen

l'onde oscillatoire amortie gedämpft schwingende Wellen
(IEC 61000-4-18:2019) (IEC 61000-4-18:2019)

This European Standard was approved by CENELEC on 2019-06-20. 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

© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 61000-4-18:2019 E
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SIST EN IEC 61000-4-18:2019
EN IEC 61000-4-18:2019 (E)
European foreword

The text of document 77B/797/FDIS, future edition 2 of IEC 61000-4-18, prepared by SC 77B "High frequency

phenomena" of IEC/TC 77 "Electromagnetic compatibility" was submitted to the IEC-CENELEC parallel vote

and approved by CENELEC as EN IEC 61000-4-18:2019.
The following dates are fixed:

• latest date by which the document has to be implemented at national level by (dop) 2020-03-20

publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2022-06-20

document have to be withdrawn
This document supersedes EN 61000-4-18:2007.

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 61000-4-18:2019 was approved by CENELEC as a European

Standard without any modification.
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SIST EN IEC 61000-4-18:2019
EN IEC 61000-4-18:2019 (E)
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 When 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 60050-161 - International Electrotechnical Vocabulary. - -
Chapter 161: Electromagnetic compatibility
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SIST EN IEC 61000-4-18:2019
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SIST EN IEC 61000-4-18:2019
IEC 61000-4-18
Edition 2.0 2019-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electromagnetic compatibility (EMC) –
Part 4-18: Testing and measurement techniques – Damped oscillatory wave
immunity test
Compatibilité électromagnétique (CEM) –
Partie 4-18: Techniques d'essai et de mesure – Essai d'immunité à l'onde
oscillatoire amortie
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.100.20 ISBN 978-2-8322-6707-3

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
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SIST EN IEC 61000-4-18:2019
– 2 – IEC 61000-4-18:2019 © IEC 2019
CONTENTS

FOREWORD ........................................................................................................................... 5

INTRODUCTION ..................................................................................................................... 7

1 Scope .............................................................................................................................. 8

2 Normative references ...................................................................................................... 8

3 Terms, definitions and abbreviated terms ........................................................................ 9

3.1 Terms and definitions .............................................................................................. 9

3.2 Abbreviated terms ................................................................................................. 11

4 General ......................................................................................................................... 12

4.1 Types of damped oscillatory waves ....................................................................... 12

4.2 Slow damped oscillatory wave phenomenon ......................................................... 13

4.3 Fast damped oscillatory wave phenomenon .......................................................... 14

4.3.1 General ......................................................................................................... 14

4.3.2 Disturbances produced by switchgear and controlgear .................................. 14

4.3.3 Disturbances produced by high-altitude electromagnetic pulse (HEMP) ......... 15

5 Test levels ..................................................................................................................... 15

6 Test instrumentation ...................................................................................................... 16

6.1 General ................................................................................................................. 16

6.2 Damped oscillatory wave generators ..................................................................... 17

6.2.1 Slow damped oscillatory wave generator ....................................................... 17

6.2.2 Fast damped oscillatory wave generator ........................................................ 19

6.3 Coupling/decoupling networks ............................................................................... 21

6.3.1 General ......................................................................................................... 21

6.3.2 Coupling/decoupling networks for slow damped oscillatory waves ................. 22

6.3.3 Coupling/decoupling networks for fast damped oscillatory waves ................... 28

6.4 Calibration of coupling/decoupling networks .......................................................... 30

6.4.1 General ......................................................................................................... 30

6.4.2 Calibration of CDNs for slow damped oscillatory waves ................................. 31

6.4.3 Calibration of CDNs for fast damped oscillatory waves .................................. 32

6.5 Capacitive coupling clamp for fast damped oscillatory waves ................................ 34

6.5.1 Characteristics of the capacitive coupling clamp ............................................ 34

6.5.2 Calibration of the capacitive coupling clamp .................................................. 35

7 Test setup ..................................................................................................................... 36

7.1 Test equipment ..................................................................................................... 36

7.2 Verification of the test instrumentation .................................................................. 36

7.3 Test setup ............................................................................................................. 37

7.3.1 General ......................................................................................................... 37

7.3.2 Particular requirements for tests on shielded lines for slow damped

oscillatory waves ........................................................................................... 39

7.3.3 Particular requirements for the test setup for fast damped oscillatory

waves testing ................................................................................................. 40

7.4 Equipment under test ............................................................................................ 42

7.5 Coupling/decoupling networks ............................................................................... 42

8 Test procedure .............................................................................................................. 42

8.1 General ................................................................................................................. 42

8.2 Laboratory reference conditions ............................................................................ 42

8.2.1 Climatic conditions ........................................................................................ 42

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8.2.2 Electromagnetic conditions ............................................................................ 42

8.3 Execution of the test ............................................................................................. 43

9 Evaluation of test results ............................................................................................... 44

10 Test report ..................................................................................................................... 44

Annex A (informative) Information on test levels for the damped oscillatory wave ................ 46

Annex B (informative) Measurement uncertainty (MU) considerations .................................. 47

B.1 General ................................................................................................................. 47

B.2 Legend for damped oscillatory wave parameters ................................................... 47

B.3 Uncertainty contributors to the damped oscillatory wave MU ................................. 48

B.4 Uncertainty of the output voltage and current measurement .................................. 48

B.4.1 General ......................................................................................................... 48

B.4.2 Rise time of the 3 MHz damped oscillatory wave ........................................... 48

B.4.3 Peak of the 3 MHz damped oscillatory wave .................................................. 50

B.4.4 Further MU contributions to time measurements ............................................ 51

B.4.5 Rise time of the step response and bandwidth of the frequency

response of the measuring system ................................................................. 51

B.4.6 Impulse peak and width distortion due to the limited bandwidth of the

measuring system .......................................................................................... 52

B.5 Application of uncertainties in the damped oscillatory waveform compliance

criterion ................................................................................................................ 53

Annex C (informative) Issues relating to powering EUTs having DC/DC converters at

the input ............................................................................................................................... 54

C.1 General ................................................................................................................. 54

C.2 Considerations for remediation ............................................................................. 55

Bibliography .......................................................................................................................... 57

Figure 1 – Example of waveform of the damped oscillatory wave .......................................... 13

Figure 2 – Example of schematic circuit of the generator for the slow damped

oscillatory wave .................................................................................................................... 17

Figure 3 – Representation of a slow damped oscillatory wave ............................................... 18

Figure 4 – Example of schematic circuit of the test generator for the fast damped

oscillatory wave .................................................................................................................... 19

Figure 5 – Representation of a fast damped oscillatory wave ................................................ 20

Figure 6 – Selection of coupling/decoupling method for slow damped oscillatory waves ........ 22

Figure 7 – Example of a CDN for capacitive coupling on AC/DC lines: line-to-ground

coupling ................................................................................................................................ 23

Figure 8 – Example of a CDN for capacitive coupling on AC lines (three phases): line-

to-ground coupling ................................................................................................................ 23

Figure 9 – Example of a CDN for capacitive coupling on AC/DC lines: line-to-line

coupling ................................................................................................................................ 24

Figure 10 – Example of a CDN for capacitive coupling on AC lines (three phases): line

L2-to-line N coupling ............................................................................................................. 24

Figure 11 – Example of a CDN for interconnection lines: line-to-ground coupling .................. 25

Figure 12 – Example of a CDN for unshielded unsymmetrical interconnection lines:

line-to-line and line-to-ground coupling ................................................................................. 26

Figure 13 – Example of a CDN for unshielded symmetrical interconnection lines: line-

to-ground coupling ................................................................................................................ 27

Figure 14 – Example of a CDN for unshielded symmetrical interconnection lines: line-

to-ground coupling via capacitors .......................................................................................... 28

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SIST EN IEC 61000-4-18:2019
– 4 – IEC 61000-4-18:2019 © IEC 2019
Figure 15 – Example of CDN for AC/DC single-phase power supply: line-to-ground

coupling ................................................................................................................................ 29

Figure 16 – Example of CDN for AC three-phase power supply: line-to-ground coupling ....... 29

Figure 17 – Example of CDN for interconnection lines for fast damped oscillatory

waves: line-to-ground coupling.............................................................................................. 30

Figure 18 – Example of a calibration setup of CDNs for AC/DC power ports for fast

damped oscillatory waves ..................................................................................................... 33

Figure 19 – Example of a calibration setup of CDNs for interconnection lines for fast

damped oscillatory waves ..................................................................................................... 33

Figure 20 – Example of a capacitive coupling clamp ............................................................. 35

Figure 21 – Transducer plate for coupling clamp calibration .................................................. 35

Figure 22 – Calibration of a capacitive coupling clamp using the transducer plate ................. 36

Figure 23 – Example of a verification setup of the capacitive coupling clamp ........................ 37

Figure 24 – Example of a test setup ...................................................................................... 39

Figure 25 – Example of test setup applied to shielded lines .................................................. 40

Figure 26 – Example of test setup using a floor standing system of two EUTs ....................... 41

Figure C.1 – Example of the addition of a damping circuit to the CDN for DC/DC

converter EUTs ..................................................................................................................... 55

Figure C.2 – Example of direct injection of damped oscillatory waves ................................... 56

Table 1 – Values of the parameters of w(t) for each standard oscillation frequency .............. 12

Table 2 – Test levels for the slow damped oscillatory wave (100 kHz or 1 MHz) .................. 16

Table 3 – Test levels for the fast damped oscillatory wave (3 MHz, 10 MHz or 30 MHz) ....... 16

Table 4 – Damped oscillatory waveform specifications at the EUT port of CDNs for

slow damped oscillatory waves ............................................................................................. 32

Table 5 – Damped oscillatory waveform specifications at the EUT port of CDNs for

fast damped oscillatory waves .............................................................................................. 34

Table B.1 – Example of uncertainty budget for the rise time of the open circuit voltage

of the 3 MHz damped oscillatory wave (T ) ........................................................................... 49

Table B.2 – Example of uncertainty budget for the peak of the open circuit voltage of

the 3 MHz damped oscillatory wave (Pk ) ............................................................................. 50

Table B.3 – α factor of different unidirectional impulse responses corresponding to the

same bandwidth of system B................................................................................................. 52

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SIST EN IEC 61000-4-18:2019
IEC 61000-4-18:2019 © IEC 2019 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROMAGNETIC COMPATIBILITY (EMC) –
Part 4-18: Testing and measurement techniques –
Damped oscillatory wave immunity test
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

this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

in the subject dealt with may participate in this preparatory work. International, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

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 61000-4-18 has been prepared by subcommittee 77B: High

frequency phenomena, of IEC Technical Committee 77: Electromagnetic compatibility.

It forms Part 4-18 of the IEC 61000 series. It has the status of a basic EMC publication in

accordance with IEC Guide 107.

This second edition cancels and replaces the first edition published in 2006 and its

Amendment 1:2010. This edition constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:
a) addition of a mathematical modelling of damped oscillatory wave waveform;
b) new Annex B on measurement uncertainty;
c) addition high speed CDN;
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SIST EN IEC 61000-4-18:2019
– 6 – IEC 61000-4-18:2019 © IEC 2019
d) addition of calibration procedures for CDNs;

e) addition of the use of the capacitive coupling clamp on interconnection lines for fast

damped oscillatory waves;

f) addition of a test procedure for DC/DC converters in case the CDN does not work;

g) new Annex C on issues relating to powering EUTs having DC/DC converters at the input.

The text of this International Standard is based on the following documents:
FDIS Report on voting
77B/797/FDIS 77B/799/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.

A list of all parts in the IEC 61000 series, published under the general title Electromagnetic

compatibility (EMC), 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.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct

understanding of its contents. Users should therefore print this document using a

colour printer.
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SIST EN IEC 61000-4-18:2019
IEC 61000-4-18:2019 © IEC 2019 – 7 –
INTRODUCTION
IEC 61000 is published in separate parts, according to the following structure:
Part 1: General
General considerations (introduction, fundamental principles)
Definitions, terminology
Part 2: Environment
Description of the environment
Classification of the environment
Compatibility levels
Part 3: Limits
Emission limits

Immunity limits (in so far as they do not fall under the responsibility of the product

committees)
Part 4: Testing and measurement techniques
Testing techniques
Part 5: Installation and mitigation guidelines
Installation guidelines
Mitigation methods and devices
Part 6: Generic standards
Part 9: Miscellaneous

Each part is further subdivided into several parts, published either as international standards

or as technical specifications or technical reports, some of which have already been published

as sections. Others will be published with the part number followed by a dash and a second

number identifying the subdivision (example: IEC 61000-6-1).

This part is an international standard which gives immunity requirements and test procedures

related to damped oscillatory waves.
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SIST EN IEC 61000-4-18:2019
– 8 – IEC 61000-4-18:2019 © IEC 2019
ELECTROMAGNETIC COMPATIBILITY (EMC) –
Part 4-18: Testing and measurement techniques –
Damped oscillatory wave immunity test
1 Scope

This part of IEC 61000 focuses on the immunity requirements and test methods for electrical

and electronic equipment, under operational conditions, with regard to:

a) repetitive slow damped oscillatory waves occurring mainly in power, control and signal

cables installed in high voltage and medium voltage (HV/MV) substations;

b) repetitive fast damped oscillatory waves occurring mainly in power, control and signal

cables installed in gas insulated substations (GIS) and in some cases also air insulated

substations (AIS) or in any installation due to high-altitude electromagnetic pulse (HEMP)

phenomena.

The object of this document is to establish a common and reproducible reference for

evaluating the immunity of electrical and electronic equipment when subjected to damped

oscillatory waves on supply, signal, control and earth ports. The test method documented in

this part of IEC 61000 describes a consistent method to assess the immunity of an equipment

or system against a defined phenomenon.

NOTE As described in IEC Guide 107, this is a basic EMC publication for use by product committees of the IEC.

As also stated in Guide 107, the IEC product committees are responsible for determining whether this immunity

test standard is applied or not, and if applied, they are responsible for determining the appropriate test levels and

performance criteria.
The document defines:
– test voltage and current waveforms;
– ranges of test levels;
– test equipment;
– calibration and verification procedures of test equipment;
– test setups;
– test procedure.
2 Normative references

The following documents are referred to in the text in such a way that some or all of

...

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