Electrical equipment for measurement, control and laboratory use - EMC requirements - Part 2-4: Particular requirements - Test configurations, operational conditions and performance criteria for insulation monitoring devices according to IEC 61557-8 and for equipment for insulation fault location according to IEC 61557-9 (IEC 61326-2-4:2020)

In addition to IEC 61326-1, this part of IEC 61326 specifies more detailed test configurations,
operational conditions and performance criteria than IEC 61326-1 for equipment for
– insulation monitoring according to IEC 61557-8;
– insulation fault location according to IEC 61557-9.
This applies to insulation monitoring devices and for equipment for insulation fault location
systems permanently or semi-permanently connected to the distribution system.

Elektrische Mess-, Steuer-, Regel- und Laborgeräte - EMV-Anforderungen - Teil 2-4: Besondere Anforderungen - Prüfanordnung, Betriebsbedingungen und Leistungsmerkmale für Isolationsüberwachungsgeräte gemäß IEC 61557-8 und Geräte zur Isolationsfehlerortung gemäß IEC 61557-9 (IEC 61326-2-4:2020)

Matériel électrique de mesure, de commande et de laboratoire - Exigences relatives à la CEM - Partie 2-4: Exigences particulières - Configurations d'essai, conditions de fonctionnement et critères de performance pour les contrôleurs d'isolement conformes à la CEI 61557-8 et pour les dispositifs de localisation de défaut d'isolement conformes à la CEI 61557-9 (IEC 61326-2-4:2020)

IEC 61326-2-4:2020 est disponible sous forme de IEC 61326-2-4:2020 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L’IEC 61326-2-4:2020 spécifie plus en détail que l’IEC 61326-1 les configurations d’essai, les conditions de fonctionnement et les critères de performance pour les équipements pour - le contrôle de l’isolement conforme à l’IEC 61557-8; - la localisation des défauts d’isolement conformes à l’IEC 61557-9. Elle s’applique aux contrôleurs d’isolement et aux dispositifs relatifs aux systèmes de localisation des défauts d’isolement connectés de manière permanente ou semi-permanente au réseau de distribution.

Električna oprema za merjenje, nadzor in laboratorijsko uporabo - Zahteve za elektromagnetno združljivost (EMC) - 2-4. del: Posebne zahteve - Preskusne konfiguracije, obratovalni pogoji in merila učinkovitosti za delovanje naprav za stalno nadzorovanje izolacije po IEC 61557-8 in opreme za ugotavljanje mesta izolacijske okvare po IEC 61557-9 (IEC 61326-2-4:2020)

General Information

Status
Published
Public Enquiry End Date
30-Oct-2019
Publication Date
17-Aug-2021
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
11-Jun-2021
Due Date
16-Aug-2021
Completion Date
18-Aug-2021

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SLOVENSKI STANDARD
SIST EN IEC 61326-2-4:2021
01-september-2021
Nadomešča:
SIST EN 61326-2-4:2013
Električna oprema za merjenje, nadzor in laboratorijsko uporabo - Zahteve za
elektromagnetno združljivost (EMC) - 2-4. del: Posebne zahteve - Preskusne
konfiguracije, obratovalni pogoji in merila učinkovitosti za delovanje naprav za
stalno nadzorovanje izolacije po IEC 61557-8 in opreme za ugotavljanje mesta
izolacijske okvare po IEC 61557-9 (IEC 61326-2-4:2020)

Electrical equipment for measurement, control and laboratory use - EMC requirements -

Part 2-4: Particular requirements - Test configurations, operational conditions and

performance criteria for insulation monitoring devices according to IEC 61557-8 and for

equipment for insulation fault location according to IEC 61557-9 (IEC 61326-2-4:2020)

Elektrische Mess-, Steuer-, Regel- und Laborgeräte - EMV-Anforderungen - Teil 2-4:

Besondere Anforderungen - Prüfanordnung, Betriebsbedingungen und
Leistungsmerkmale für Isolationsüberwachungsgeräte gemäß IEC 61557-8 und Geräte
zur Isolationsfehlerortung gemäß IEC 61557-9 (IEC 61326-2-4:2020)

Matériel électrique de mesure, de commande et de laboratoire - Exigences relatives à la

CEM - Partie 2-4: Exigences particulières - Configurations d'essai, conditions de

fonctionnement et critères de performance pour les contrôleurs d'isolement conformes à

la CEI 61557-8 et pour les dispositifs de localisation de défaut d'isolement conformes à

la CEI 61557-9 (IEC 61326-2-4:2020)
Ta slovenski standard je istoveten z: EN IEC 61326-2-4:2021
ICS:
19.080 Električno in elektronsko Electrical and electronic
preskušanje testing
SIST EN IEC 61326-2-4:2021 en,fr,de

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

---------------------- Page: 1 ----------------------
SIST EN IEC 61326-2-4:2021
---------------------- Page: 2 ----------------------
SIST EN IEC 61326-2-4:2021
EUROPEAN STANDARD EN IEC 61326-2-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2021

ICS 25.040.40; 17.220.20; 33.100.20 Supersedes EN 61326-2-4:2013 and all of its

amendments and corrigenda (if any)
English Version
Electrical equipment for measurement, control and laboratory
use - EMC requirements - Part 2-4: Particular requirements -
Test configurations, operational conditions and performance
criteria for insulation monitoring devices according to IEC 61557-
8 and for equipment for insulation fault location according to IEC
61557-9
(IEC 61326-2-4:2020)

Matériel électrique de mesure, de commande et de Elektrische Mess-, Steuer-, Regel- und Laborgeräte - EMV-

laboratoire - Exigences relatives à la CEM - Partie 2-4: Anforderungen - Teil 2-4: Besondere Anforderungen -

Exigences particulières - Configurations d'essai, conditions Prüfanordnung, Betriebsbedingungen und

de fonctionnement et critères de performance pour les Leistungsmerkmale für Isolationsüberwachungsgeräte nach

contrôleurs d'isolement conformes à l'IEC 61557-8 et pour IEC 61557-8 und Geräte zur Isolationsfehlerortung nach

les dispositifs de localisation de défaut d'isolement IEC 61557-9
conformes à l'IEC 61557-9 (IEC 61326-2-4:2020)
(IEC 61326-2-4:2020)

This European Standard was approved by CENELEC on 2020-12-01. 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

© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 61326-2-4:2021 E
---------------------- Page: 3 ----------------------
SIST EN IEC 61326-2-4:2021
EN IEC 61326-2-4:2021 (E)
European foreword

The text of document 65A/981/FDIS, future edition 3 of IEC 61326-2-4, prepared by SC 65A "System

aspects" of IEC/TC 65 "Industrial-process measurement, control and automation" was submitted to the

IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61326-2-4:2021.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2021-12-04

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2024-06-04

document have to be withdrawn

This document supersedes EN 61326-2-4:2013 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.

This document has been prepared under a mandate given to CENELEC by the European Commission

and the European Free Trade Association.
Endorsement notice

The text of the International Standard IEC 61326-2-4:2020 was approved by CENELEC as a

European Standard without any modification.
---------------------- Page: 4 ----------------------
SIST EN IEC 61326-2-4:2021
EN IEC 61326-2-4:2021 (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 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.
The Annex ZA of EN IEC 61326-1:2021 applies with the following additions:
Publication Year Title EN/HD Year
IEC 61326-1 2020 Electrical equipment for measurement, EN IEC 61326-1 2021
control and laboratory use - EMC
requirements - Part 1: General
requirements
IEC 61557-8 2014 Electrical safety in low voltage distribution EN 61557-8 2015
systems up to 1 000 V a.c. and 1 500 V
d.c. - Equipment for testing, measuring or
monitoring of protective measures - Part 8:
Insulation monitoring devices for IT
systems
IEC 61557-9 2014 Electrical safety in low voltage distribution EN 61557-9 2015
systems up to 1 000 V a.c. and 1 500 V
d.c. - Equipment for testing, measuring or
monitoring of protective measures - Part 9:
Equipment for insulation fault location in IT
systems
---------------------- Page: 5 ----------------------
SIST EN IEC 61326-2-4:2021
---------------------- Page: 6 ----------------------
SIST EN IEC 61326-2-4:2021
IEC 61326-2-4
Edition 3.0 2020-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical equipment for measurement, control and laboratory use –
EMC requirements –
Part 2-4: Particular requirements – Test configurations, operational conditions
and performance criteria for insulation monitoring devices according to
IEC 61557-8 and for equipment for insulation fault location according to
IEC 61557-9
Matériel électrique de mesure, de commande et de laboratoire –
Exigences relatives à la CEM –
Partie 2-4: Exigences particulières – Configurations d'essai, conditions de
fonctionnement et critères de performance pour les contrôleurs d'isolement
conformes à l’IEC 61557-8 et pour les dispositifs de localisation de défaut
d’isolement conformes à l’IEC 61557-9
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.20; 25.040.40; 33.100.20 ISBN 978-2-8322-8981-5

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
---------------------- Page: 7 ----------------------
SIST EN IEC 61326-2-4:2021
– 2 – IEC 61326-2-4:2020 © IEC 2020
CONTENTS

FOREWORD ........................................................................................................................... 3

1 Scope .............................................................................................................................. 5

2 Normative references ...................................................................................................... 5

3 Terms and definitions ...................................................................................................... 5

4 General ........................................................................................................................... 7

5 EMC test plan .................................................................................................................. 7

5.1 General ................................................................................................................... 7

5.2 Configuration of EUT during testing ........................................................................ 7

5.3 Operation conditions of EUT during testing ............................................................. 8

5.4 Specification of FUNCTIONAL PERFORMANCE .............................................................. 8

5.5 Test description ...................................................................................................... 8

6 Immunity requirements .................................................................................................... 8

6.1 Conditions during the tests...................................................................................... 8

6.2 Immunity test requirements ..................................................................................... 9

6.3 Random aspects ................................................................................................... 10

6.4 Performance criteria ............................................................................................. 11

7 Emission requirements .................................................................................................. 12

7.1 Conditions during measurements .......................................................................... 12

7.2 Emission limits ...................................................................................................... 12

8 Test results and test report ............................................................................................ 12

9 Instructions for use ........................................................................................................ 13

Annex A (normative) Immunity test requirements for PORTABLE TEST AND MEASUREMENT

EQUIPMENT powered by battery or from the circuit being measured ........................................ 14

Bibliography .......................................................................................................................... 15

Table 101 – Immunity tests ................................................................................................... 10

Table 102 – Performance criteria definition ........................................................................... 11

Table 103 – Test conditions for quiescent and operate modes .............................................. 12

---------------------- Page: 8 ----------------------
SIST EN IEC 61326-2-4:2021
IEC 61326-2-4:2020 © IEC 2020 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL EQUIPMENT FOR MEASUREMENT,
CONTROL AND LABORATORY USE –
EMC REQUIREMENTS –
Part 2-4: Particular requirements –
Test configurations, operational conditions and performance
criteria for insulation monitoring devices according to IEC 61557-8
and for equipment for insulation fault location according to IEC 61557-9
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 61326-2-4 has been prepared by subcommittee 65A: System

aspects, of IEC technical committee 65: Industrial-process measurement, control and

automation.

This third edition cancels and replaces the second edition published in 2012. This edition

constitutes a technical revision.

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

edition:
– update of the document with respect to IEC 61326-1:2020.
---------------------- Page: 9 ----------------------
SIST EN IEC 61326-2-4:2021
– 4 – IEC 61326-2-4:2020 © IEC 2020
The text of this International Standard is based on the following documents:
FDIS Report on voting
65A/981/FDIS 65A/992/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.

In this document the following print types are used:

– Terms used throughout this document which have been defined in Clause 3 of this

document and of IEC 61326-1:2020: SMALL CAPITALS.

This part of the IEC 61326 series is to be used in conjunction with IEC 61326-1:2020 and

follows the same numbering of clauses, subclauses, tables and figures.

When a particular subclause of IEC 61326-1 is not mentioned in this part, that subclause

applies as far as is reasonable. When this standard states “addition”, “modification” or

“replacement”, the relevant text in IEC 61326-1 is to be adapted accordingly.
NOTE The following numbering system is used:

– subclauses, tables and figures that are numbered starting from 101 are additional to those in IEC 61326-1;

– unless notes are in a new subclause or involve notes in IEC 61326-1, they are numbered starting from 101

including those in a replaced clause or subclause;
– additional annexes are lettered AA, BB, etc.
A list of all parts of the IEC 61326 series, under the general titl
...

SLOVENSKI STANDARD
oSIST prEN IEC 61326-2-4:2019
01-oktober-2019
Električna oprema za merjenje, kontrolo in laboratorijsko uporabo - Zahteve za
elektromagnetno združljivost (EMC) - 2-4. del: Posebne zahteve - Preskusne
konfiguracije, obratovalni pogoji in merila za delovanje naprav za stalno
preverjanje izolacije po IEC 61557-8 in opreme za ugotavljanje mesta okvare
izolacije po IEC 61557-9

Electrical equipment for measurement, control and laboratory use - EMC requirements -

Part 2-4: Particular requirements - Test configurations, operational conditions and

performance criteria for insulation monitoring devices according to IEC 61557-8 and for

equipment for insulation fault location according to IEC 61557-9

Elektrische Mess-, Steuer-, Regel- und Laborgeräte - EMV-Anforderungen - Teil 2-4:

Besondere Anforderungen - Prüfanordnung, Betriebsbedingungen und
Leistungsmerkmale für Isolationsüberwachungsgeräte gemäß IEC 61557-8 und Geräte
zur Isolationsfehlerortung gemäß IEC 61557-9

Matériel électrique de mesure, de commande et de laboratoire - Exigences relatives à la

CEM - Partie 2-4: Exigences particulières - Configurations d'essai, conditions de

fonctionnement et critères de performance pour les contrôleurs d'isolement conformes à

la CEI 61557-8 et pour les dispositifs de localisation de défaut d'isolement conformes à

la CEI 61557-9
Ta slovenski standard je istoveten z: prEN IEC 61326-2-4:2019
ICS:
19.080 Električno in elektronsko Electrical and electronic
preskušanje testing
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
oSIST prEN IEC 61326-2-4:2019 en,fr,de

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

---------------------- Page: 1 ----------------------
oSIST prEN IEC 61326-2-4:2019
---------------------- Page: 2 ----------------------
oSIST prEN IEC 61326-2-4:2019
65A/926/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61326-2-4 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2019-08-23 2019-11-15
SUPERSEDES DOCUMENTS:
65A/907/CD, 65A/917A/CC
IEC SC 65A : SYSTEM ASPECTS
SECRETARIAT: SECRETARY:
United Kingdom Mr Petar Luzajic
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
TC 77, SC 77A
Other TC/SCs are requested to indicate their interest, if any, in
this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY

SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING

Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for Vote
(CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.

Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they are

aware and to provide supporting documentation.
TITLE:

Electrical equipment for measurement, control and laboratory use – EMC requirements – Part 2-4: Particular

requirements – Test configurations, operational conditions and performance criteria for insulation monitoring

devices according to IEC 61557-8 and for equipment for insulation fault location according to IEC 61557-9

PROPOSED STABILITY DATE: 2023
NOTE FROM TC/SC OFFICERS:

Copyright © 2019 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this

electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.

You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without

permission in writing from IEC.
---------------------- Page: 3 ----------------------
oSIST prEN IEC 61326-2-4:2019
65A/926/CDV – 2 – IEC CDV 61326-2-4 © IEC 2019
1 CONTENTS

2 FOREWORD ........................................................................................................................... 3

3 1 Scope ............................................................................................................................... 5

4 2 Normative references ....................................................................................................... 5

5 3 Terms and definitions ....................................................................................................... 5

6 4 General ............................................................................................................................ 6

7 5 EMC test plan ................................................................................................................... 6

8 5.1 General ................................................................................................................... 6

9 5.2 Configuration of EUT during testing ......................................................................... 7

10 5.2.1 General ....................................................................................................... 7

11 5.2.2 Composition of EUT ..................................................................................... 7

12 5.2.3 Assembly of EUT ......................................................................................... 7

13 5.2.4 I/O ports ...................................................................................................... 7

14 5.2.5 Auxiliary equipment ..................................................................................... 7

15 5.2.6 Cabling and earthing (grounding) ................................................................. 7

16 5.3 Operation conditions of EUT during testing .............................................................. 7

17 5.3.101 Operational conditions ............................................................................ 7

18 5.4 Specification of functional performance ................................................................... 8

19 5.5 Test description ....................................................................................................... 8

20 6 Immunity requirements ..................................................................................................... 8

21 6.1 Conditions during the tests ...................................................................................... 8

22 6.1.101 Electrostatic discharge immunity tests ..................................................... 8

23 6.1.102 Electromagnetic field tests ...................................................................... 9

24 6.1.103 Burst tests .............................................................................................. 9

25 6.1.104 Surge immunity tests............................................................................... 9

26 6.1.105 Conducted RF tests ................................................................................ 9

27 6.1.106 Power frequency magnetic field tests ...................................................... 9

28 6.2 Immunity test requirements ..................................................................................... 9

29 6.3 Random aspects.................................................................................................... 10

30 6.4 Performance criteria .............................................................................................. 10

31 7 Emission requirements ................................................................................................... 12

32 7.1 Conditions during measurements. ......................................................................... 12

33 7.2 Emission limits ...................................................................................................... 12

34 8 Test results and test report ............................................................................................. 12

35 9 Instructions for use ......................................................................................................... 13

36 Annex A (normative) Immunity test requirements for portable test and measurement

37 equipment powered by battery or from the circuit being measured ........................................ 14

38 Bibliography .......................................................................................................................... 15

40 Table 101 – Immunity tests ................................................................................................... 10

41 Table 102 – Performance criteria definition ........................................................................... 11

42 Table 103 – Test conditions for quiescent and operate modes .............................................. 12

---------------------- Page: 4 ----------------------
oSIST prEN IEC 61326-2-4:2019
IEC CDV 61326-2-4 © IEC 2019 – 3 – 65A/926/CDV
44 INTERNATIONAL ELECTROTECHNICAL COMMISSION
45 ____________
47 ELECTRICAL EQUIPMENT FOR MEASUREMENT,
48 CONTROL AND LABORATORY USE –
49 EMC REQUIREMENTS –
51 Part 2-4: Particular requirements –
52 Test configurations, operational conditions and performance criteria
53 for insulation monitoring devices according to IEC 61557-8
54 and for equipment for insulation fault location according to IEC 61557-9
57 FOREWORD

58 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

59 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

60 international co-operation on all questions concerning standardization in the electrical and electronic fields. To

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

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

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

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

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

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

67 agreement between the two organizations.

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

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

70 interested IEC National Committees.

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

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

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

74 misinterpretation by any end user.

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

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

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

78 the latter.

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

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

81 services carried out by independent certification bodies.

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

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

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

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

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

87 Publications.

88 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

89 indispensable for the correct application of this publication.

90 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

91 patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

92 International Standard IEC 61326-2-4 has been prepared by subcommittee 65A: System

93 aspects, of IEC technical committee 65: Industrial-process measurement, control and

94 automation.

95 This third edition cancels and replaces the second edition published in 2012. This edition

96 constitutes a technical revision.
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98 This edition includes the following significant technical change with respect to the previous

99 edition:
100 – update of the document with respect to IEC 61326-1:2012.
101 The text of this standard is based on the following documents:
FDIS Report on voting
65A/630/FDIS 65A/639/RVD
102

103 Full information on the voting for the approval of this standard can be found in the report on

104 voting indicated in the above table.

105 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

106 This part of the IEC 61326 series is to be used in conjunction with IEC 61326-1:2012 and

107 follows the same numbering of clauses, subclauses, tables and figures.

108 When a particular subclause of IEC 61326-1 is not mentioned in this part, that subclause

109 applies as far as is reasonable. When this standard states “addition”, “modification” or

110 “replacement”, the relevant text in IEC 61326-1 is to be adapted accordingly.

111 NOTE The following numbering system is used:

112 – subclauses, tables and figures that are numbered starting from 101 are additional to those in IEC 61326-

113 1;

114 – unless notes are in a new subclause or involve notes in IEC 61326-1, they are numbered starting from

115 101 including those in a replaced clause or subclause;
116 – additional annexes are lettered AA, BB, etc.

117 A list of all parts of the IEC 61326 series, under the general title Electrical equipment for

118 measurement, control and laboratory use, control and laboratory use – EMC requirements can

119 be found on the IEC website.

120 The committee has decided that the contents of this publication will remain unchanged until

121 the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data

122 related to the specific publication. At this date, the publication will be
123 • reconfirmed,
124 • withdrawn,
125 • replaced by a revised edition, or
126 • amended.
127
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128 ELECTRICAL EQUIPMENT FOR MEASUREMENT,
129 CONTROL AND LABORATORY USE –
130 EMC REQUIREMENTS –
131
132 Part 2-4: Particular requirements –
133 Test configurations, operational conditions and performance criteria
134 for insulation monitoring devices according to IEC 61557-8
135 and for equipment for insulation fault location according to IEC 61557-9
136
137
138
139 1 Scope

140 In addition to IEC 61326-1, this part of IEC 61326 specifies more detailed test configurations,

141 operational conditions and performance criteria than IEC 61326-1 for equipment for

142 – insulation monitoring according to IEC 61557-8;
143 – insulation fault location according to IEC 61557-9.

144 This applies to insulation monitoring devices and insulation fault location systems

145 permanently or semi-permanently connected to the distribution system.
146 2 Normative references

147 The following documents, in whole or in part, are normatively referenced in this document and

148 are indispensable for its application. For dated references, only the edition cited applies. For

149 undated referenc
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