IEC 61326-2-2:2020

Electrical equipment for measurement, control and laboratory use - EMC requirements - Part 2-2: Particular requirements - Test configurations, operational conditions and performance criteria for portable testing, measuring and monitoring equipment used in low-voltage distribution systems

IEC 61326-2-2:2020 specifies more detailed test configurations, operational conditions and performance criteria for equipment covered by Annex A of IEC 61326-1:2020 which is:
- used for testing, measuring or monitoring of protective measures in low-voltage distribution systems, and;
- powered by battery and/or from the circuit measured, and
- portable.
Examples of such EUTs include, but are not limited to, voltage detectors, insulation testers, earth continuity testers, earth resistance testers, leakage current clamps, loop impedance testers, “residual-current-device-testers” (RCD-testers) and phase sequence testers as defined in IEC 61557 (all parts).

Matériel électrique de mesure, de commande et de laboratoire - Exigences relatives à la CEM - Partie 2-2: Exigences particulières - Configurations d'essai, conditions de fonctionnement et critères de performance des matériels portables d'essai, de mesure et de surveillance utilisés dans des réseaux de distribution basse tension

L’IEC 61326:2020 donne des spécifications plus détaillées des configurations d’essai, des conditions fonctionnelles et des critères de performance pour les matériels couverts par l'Annexe A de l’IEC 61326-1:2020, qui sont:
- utilisés pour le contrôle, la mesure ou la surveillance de mesures de protection dans les réseaux de distribution à basse tension, et;
- alimentés par batterie et/ou par le circuit mesuré, et
- portables.
Exemples de tels EST (entre autres): détecteurs de tension, appareils d’essai d’isolement, appareils d’essai de continuité de terre, appareils d’essai de résistance à la terre, pinces de courant de fuite, appareils d’essai d’impédance de boucle, “appareils d’essai de dispositifs à courant résiduel” (appareils d’essai DCR) et appareils d’essai d'ordre de phases, tels que définis dans l’IEC 61557 (toutes les parties).

General Information

• Status: Published
• Publication Date: 22-Oct-2020
• ICS: 17.220.20 - Measurement of electrical and magnetic quantities
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 33.100.20 - Immunity
• Technical Committee: SC 65A - System aspects
• Drafting Committee: WG 4 - TC 65/SC 65A/WG 4
• Current Stage: PPUB - Publication issued
• Start Date: 23-Oct-2020
• Completion Date: 13-Nov-2020

Relations

• Revises: IEC 61326-2-2:2012 - Electrical equipment for measurement, control and laboratory use - EMC requirements - Part 2-2: Particular requirements - Test configurations, operational conditions and performance criteria for portable test, measuring and monitoring equipment used in low-voltage distribution systems
• Effective Date: 05-Sep-2023

Overview

IEC 61326-2-2:2020 is a part-specific IEC standard that defines detailed EMC requirements for portable testing, measuring and monitoring equipment used in low-voltage distribution systems. It is intended to be used in conjunction with IEC 61326-1:2020 (general requirements) and specifies test configurations, operational conditions and performance criteria for battery-powered and/or circuit-powered portable equipment such as voltage detectors, insulation testers, earth continuity and resistance testers, leakage current clamps, loop impedance and RCD-testers, and phase sequence testers (examples aligned with IEC 61557).

Key topics and technical requirements

• Scope and applicability: Focuses on portable equipment used for testing protective measures in LV distribution systems and powered by battery and/or the measured circuit.
• EMC test plan: Guidance on test arrangement, documentation and the EMC test plan aligned with IEC 61326-1.
• EUT configuration during testing:
  • Connect test and measurement ports using recommended or typical leads.
  • For RF immunity (IEC 61000-4-3) test setups, leads should be arranged horizontally 0.1 m apart; leads longer than 1 m should be bundled so the test object is 1 m from the EUT.
  • Voltage measurement test object example: 1 000 Ω ± 100 Ω resistor in series with a test lead.
  • Current measurement test object example: 100 Ω ± 10 Ω resistor in parallel with test leads.
• Operational conditions: Equipment shall be tested in the most sensitive ranges or combinations of ranges; each multifunctional function is tested separately.
• Immunity and emissions: Defines immunity test conditions, performance criteria and emission requirements specific to portable LV testing equipment.
• Test reporting and instructions: Requirements for test results, test reports and manufacturer instructions relevant to EMC behaviour.

Practical applications - who uses this standard

• Manufacturers and designers of portable electrical test equipment to ensure EMC compliance and product robustness in the field.
• Test laboratories and certification bodies performing immunity and emission testing for LV distribution test instruments.
• Utilities, installers and maintenance engineers seeking assurance that their handheld/measuring tools are reliable under electromagnetic disturbances.
• Compliance engineers preparing EMC test plans, reports and user instructions for market entry.

Related standards

• IEC 61326-1:2020 - General EMC requirements for measurement, control and laboratory equipment.
• IEC 61557 (all parts) - Equipment for testing, measuring or monitoring protective measures in LV distribution systems.
• IEC 61000-4-3 and IEC 61000-4-6 - Referenced for radiated and conducted immunity test methods and coupling arrangements.

Keywords: IEC 61326-2-2:2020, EMC requirements, portable testing equipment, low-voltage distribution systems, immunity tests, emissions, EUT, IEC 61326-1, IEC 61557.

Standards Content (Sample)

IEC 61326-2-2 ®
Edition 3.0 2020-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Electrical equipment for measurement, control and laboratory use –
EMC requirements –
Part 2-2: Particular requirements – Test configurations, operational conditions
and performance criteria for portable testing, measuring and monitoring
equipment used in low-voltage distribution systems

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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IEC 61326-2-2 ®
Edition 3.0 2020-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Electrical equipment for measurement, control and laboratory use –

EMC requirements –
Part 2-2: Particular requirements – Test configurations, operational conditions

and performance criteria for portable testing, measuring and monitoring

equipment used in low-voltage distribution systems

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 17.220.20; 25.040.40; 33.100.20 ISBN 978-2-8322-8991-4

– 2 – IEC 61326-2-2:2020 RLV © IEC 2020
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General . 6
5 EMC test plan . 6
5.1 General . 6
5.2 Configuration of EUT during testing . 6
5.3 Operation conditions of EUT during testing . 9
5.4 Specification of FUNCTIONAL PERFORMANCE . 9
5.5 Test description . 9
6 Immunity requirements . 9
6.1 Conditions during the tests. 9
6.2 Immunity test requirements . 10
6.3 Random aspects . 10
6.4 Performance criteria . 10
7 Emission requirements . 10
8 Test results and test report . 10
9 Instructions for use . 10
Annex A (normative) Immunity test requirements for PORTABLE TEST AND MEASUREMENT
EQUIPMENT powered by battery or from the circuit being measured . 11
Annex B (informative) Guide for analysis and assessment for electromagnetic
compatibility. 12
Bibliography . 13

Figure 101 – Test set-up for portable testing, measuring and monitoring equipment
based on IEC 61000-4-3 . 7
Figure 102 – Example of connection details for voltage measurements . 8
Figure 103 – Example of connection details for current measurements . 9

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL EQUIPMENT FOR MEASUREMENT,
CONTROL AND LABORATORY USE –
EMC REQUIREMENTS –
Part 2-2: Particular requirements –
Test configurations, operational conditions and
performance criteria for portable testing, measuring and
monitoring equipment used in low-voltage distribution systems

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.
This redline version of the official IEC Standard allows the user to identify the changes
made to the previous edition. A vertical bar appears in the margin wherever a change
has been made. Additions are in green text, deletions are in strikethrough red text.

– 4 – IEC 61326-2-2:2020 RLV © IEC 2020
International Standard IEC 61326-2-2 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 changes with respect to the previous
edition:
– update with respect to IEC 61326-1:2020.
The text of this International Standard is based on the following documents:
FDIS Report on voting
65A/977/FDIS 65A/988/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.
This part of IEC 61326 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 IEC 61326 series, under the general title Electrical equipment for
measurement, control and laboratory use – EMC requirements, 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.
ELECTRICAL EQUIPMENT FOR MEASUREMENT,
CONTROL AND LABORATORY USE –
EMC REQUIREMENTS –
Part 2-2: Particular requirements –
Test configurations, operational conditions and
performance criteria for portable testing, measuring and
monitoring equipment used in low-voltage distribution systems

1 Scope
In addition to the scope of IEC 61326-1, this part of IEC 61326 specifies more detailed test
configurations, operational conditions and performance criteria for equipment covered by
Annex A of IEC 61326-1:2020 which is:
– used for testing, measuring or monitoring of protective measures in low-voltage
distribution systems, and;
– powered by battery and/or from the circuit measured, and
– portable.
Examples of such EUTs include, but are not limited to, voltage detectors, insulation testers,
earth continuity testers, earth resistance testers, leakage current clamps, loop impedance
testers, “residual-current-device-testers” (RCD-testers) and phase sequence testers as
defined in IEC 61557 (all parts).
NOTE Particular EMC requirements for equipment covered by IEC 61557-8 and IEC 61557-9 are given in
IEC 61326-2-4.
The manufacturer specifies the environment for which the product is intended to be used
and/or selects the appropriate test level specifications of IEC 61326-1.
2 Normative references
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.
Clause 2 of IEC 61326-1:20122020 applies, except as follows:
Addition:
IEC 61326-1:20122020, Electrical equipment for measurement, control and laboratory use –
EMC requirements – Part 1: General requirements
IEC 61557 (all parts), Electrical safety in low voltage distribution systems up to 1 000 V AC
and 1 500 V DC – Equipment for testing, measuring or monitoring of protective measures
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61326-1:2020 and
IEC 60050-161 apply.
– 6 – IEC 61326-2-2:2020 RLV © IEC 2020
4 General
Clause 4 of IEC 61326-1:2020 applies.
5 EMC test plan
5.1 General
Subclause 5.1 of IEC 61326-1:2020 applies.
5.2 Configuration of EUT during testing
Subclause 5.2 of IEC 61326-1:2020 applies, except as follows:
Addition:
5.2.4.101 Test and measurement I/O ports
Electrostatic discharge shall be applied to the housing, to the terminals of the EUT and to the
coupling planes, but not to the inner pins of shielded port or cable connectors (for example,
BNC, D-subminiature, IEEE 488 (GPIB), RS232, IEEE 1284-B (parallel printer port), etc.) the
mated connector or the shield of the unmated port, but not to the inner pins of shielded port or
cable connectors (for example, BNC, D-subminiature, GPIB, RS232, USB, etc.).
For the test according to IEC 61000-4-3, the following conditions shall be met. Test and
measurement ports shall be connected with test leads recommended or supplied with the
EUT. Where the test leads are unspecified, typical test leads shall be used. The test leads
shall be connected and arranged in a typical configuration for each operation mode, according
to Figure 101.
If the test leads recommended or supplied are longer than 1 m, each one should be bundled
up so that the test or measurement object is in a (horizontal) distance of 1 m to the EUT.
The test leads shall be arranged 0,1 m apart in a horizontal position on the test table.

a
Top view
EM-clamp(s) AE
Absorber lined shielded enclosure
Test
EUT
AE
object
Uniform area
Incident electromagnetic field
IEC  1835/12
a
EM-clamp(s) (if necessary).
Figure 101 – Test set-up for portable testing, measuring
and monitoring equipment based on IEC 61000-4-3
AUXILIARY EQUIPMENT (AE) required for generating or monitoring the test object signal shall
be connected according to Figure 101 via EM-clamps if necessary as described in
IEC 61000-4-6:2013, Clause A.3.
Voltage measurements shall be made with a 1 000 Ω ± 100 Ω resistor (test object) connected
in series with one of the test leads as shown in Figure 102.
For other measurements, the test object shall be specified by the manufacturer and
documented in the test report.

– 8 – IEC 61326-2-2:2020 RLV © IEC 2020
Test object
a b
EUT EM-clamp(s) DN AE
1 m
IEC  1836/12
Dimensions in millimetres
a
Decoupling network (if necessary)
b
Auxiliary equipment (for example, voltage source)
c
EM-clamp(s) (if necessary)
Figure 102 – Example of connection details for voltage measurements
Current measurements shall be made with a 100 Ω ± 10 Ω resistor (test object) connected in
parallel with the test leads as shown in Figure 103.
0,1 m
Test object
a b
EUT EM-clamp(s) DN AE
1 m
IEC  1837/12
Dimensions in millimetres
a
Decoupling network (if necessary)
b
Auxiliary equipment (for example, current source)
c
EM-clamp(s) (if necessary)
Figure 103 – Example of connection details for current measurements
5.3 Operation conditions of EUT during testing
Subclause 5.3 of IEC 61326-1:2020 applies, except as follows:
Addition:
5.3.101 Operational conditions
Test and measurement equipment shall be set to the most sensitive ranges or combination of
ranges unless other ranges are known to provide worst-case immunity results within normal
application. Each function of multifunctional equipment shall be tested separately.
5.4 Specification of FUNCTIONAL PERFORMANCE
Subclause 5.4 of IEC 61326-1:2020 applies.
5.5 Test description
Subclause 5.5 of IEC 61326-1:2020 applies.
6 Immunity requirements
6.1 Conditions during the tests
Subclause 6.1 of IEC 61326-1:2020 applies.
0,1 m
– 10 – IEC 61326-2-2:2020 RLV © IEC 2020
6.2 Immunity test requirements
Subclause 6.2 of IEC 61326-1:2020 is replaced by the following:
Table A.1 of IEC 61326-1:2020 gives the immunity requirements for equipment covered by the
scope of this document.
Addition:
6.2.101 Electromagnetic field
If the maximum dimension of the equipment enclosure is <0,3 m, the test is performed from
only one side in accordance with Figure 101 and noted in the test report.
6.3 Random aspects
Subclause 6.3 of IEC 61326-1:2020 applies.
6.4 Performance criteria
Subclause 6.4 of IEC 61326-1:2020 applies, except as follows:
Replacement for 6.4.2 of IEC 61326-1:
Addition:
6.4.2.101 Performance criterion A
During testing, normal performance within the specification limits. This includes that permitted
variations are allowed outside the maximum intrinsic error uncertainty documented in the
technical data of the instructions for use. The variations shall be limited to five times the
intrinsic error uncertainty but not more than ±20 % of the measured value when measured at
between 50 % and 100 % of full scale.
7 Emission requirements
Clause 7 of IEC 61326-1:2020 applies.
8 Test results and test report
Clause 8 of IEC 61326-1:2020 applies.
9 Instructions for use
Clause 9 of IEC 61326-1:2020 applies.

Annex A
(normative)
Immunity test requirements for PORTABLE TEST AND MEASUREMENT
EQUIPMENT powered by battery or from the circuit being measured
Annex A of IEC 61326-1:2020 does not apply.

– 12 – IEC 61326-2-2:2020 RLV © IEC 2020
Annex B
(informative)
Guide for analysis and assessment for electromagnetic compatibility
Annex B of IEC 61326-1:2020 applies.

Bibliography
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 61557-8:2014, Electrical safety in low voltage distribution 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 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

___________
IEC 61326-2-2 ®
Edition 3.0 2020-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical equipment for measurement, control and laboratory use –
EMC requirements –
Part 2-2: Particular requirements – Test configurations, operational conditions
and performance criteria for portable testing, measuring and monitoring
equipment used in low-voltage distribution systems

Matériel électrique de mesure, de commande et de laboratoire –
Exigences relatives à la CEM –
Partie 2-2: Exigences particulières – Configurations d’essai, conditions de
fonctionnement et critères de performance des matériels portables d’essai,
de mesure et de surveillance utilisés dans des réseaux de distribution à basse
tension
– 2 – IEC 61326-2-2:2020 © IEC 2020
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General . 6
5 EMC test plan . 6
5.1 General . 6
5.2 Configuration of EUT during testing . 6
5.3 Operation conditions of EUT during testing . 7
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 . 8
6.3 Random aspects . 8
6.4 Performance criteria . 8
7 Emission requirements . 8
8 Test results and test report . 9
9 Instructions for use . 9
Annex A (normative) Immunity test requirements for PORTABLE TEST AND MEASUREMENT
EQUIPMENT powered by battery or from the circuit being measured . 10
Annex B (informative) Guide for analysis and assessment for electromagnetic
compatibility. 11
Bibliography . 12

Figure 101 – Test set-up for portable testing, measuring and monitoring equipment
based on IEC 61000-4-3 . 6
Figure 102 – Example of connection details for voltage measurements . 7
Figure 103 – Example of connection details for current measurements . 7

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL EQUIPMENT FOR MEASUREMENT,
CONTROL AND LABORATORY USE –
EMC REQUIREMENTS –
Part 2-2: Particular requirements –
Test configurations, operational conditions and
performance criteria for portable testing, measuring and
monitoring equipment used in low-voltage distribution systems

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
...

IEC 61326-2-2 ®
Edition 3.0 2020-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical equipment for measurement, control and laboratory use –
EMC requirements –
Part 2-2: Particular requirements – Test configurations, operational conditions
and performance criteria for portable testing, measuring and monitoring
equipment used in low-voltage distribution systems

Matériel électrique de mesure, de commande et de laboratoire –
Exigences relatives à la CEM –
Partie 2-2: Exigences particulières – Configurations d’essai, conditions de
fonctionnement et critères de performance des matériels portables d’essai,
de mesure et de surveillance utilisés dans des réseaux de distribution à basse
tension
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

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IEC 61326-2-2 ®
Edition 3.0 2020-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical equipment for measurement, control and laboratory use –

EMC requirements –
Part 2-2: Particular requirements – Test configurations, operational conditions

and performance criteria for portable testing, measuring and monitoring

equipment used in low-voltage distribution systems

Matériel électrique de mesure, de commande et de laboratoire –

Exigences relatives à la CEM –

Partie 2-2: Exigences particulières – Configurations d’essai, conditions de

fonctionnement et critères de performance des matériels portables d’essai,

de mesure et de surveillance utilisés dans des réseaux de distribution à basse

tension
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.20; 25.040.40; 33.100.20 ISBN 978-2-8322-8951-8

– 2 – IEC 61326-2-2:2020 © IEC 2020
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General . 6
5 EMC test plan . 6
5.1 General . 6
5.2 Configuration of EUT during testing . 6
5.3 Operation conditions of EUT during testing . 7
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 . 8
6.3 Random aspects . 8
6.4 Performance criteria . 8
7 Emission requirements . 8
8 Test results and test report . 9
9 Instructions for use . 9
Annex A (normative) Immunity test requirements for PORTABLE TEST AND MEASUREMENT
EQUIPMENT powered by battery or from the circuit being measured . 10
Annex B (informative) Guide for analysis and assessment for electromagnetic
compatibility. 11
Bibliography . 12

Figure 101 – Test set-up for portable testing, measuring and monitoring equipment
based on IEC 61000-4-3 . 6
Figure 102 – Example of connection details for voltage measurements . 7
Figure 103 – Example of connection details for current measurements . 7

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL EQUIPMENT FOR MEASUREMENT,
CONTROL AND LABORATORY USE –
EMC REQUIREMENTS –
Part 2-2: Particular requirements –
Test configurations, operational conditions and
performance criteria for portable testing, measuring and
monitoring equipment used in low-voltage distribution systems

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 61326-2-2 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 changes with respect to the previous
edition:
– update with respect to IEC 61326-1:2020.

– 4 – IEC 61326-2-2:2020 © IEC 2020
The text of this International Standard is based on the following documents:
FDIS Report on voting
65A/977/FDIS 65A/988/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.
This part of IEC 61326 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 IEC 61326 series, under the general title Electrical equipment for
measurement, control and laboratory use – EMC requirements, 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.
ELECTRICAL EQUIPMENT FOR MEASUREMENT,
CONTROL AND LABORATORY USE –
EMC REQUIREMENTS –
Part 2-2: Particular requirements –
Test configurations, operational conditions and
performance criteria for portable testing, measuring and
monitoring equipment used in low-voltage distribution systems

1 Scope
In addition to the scope of IEC 61326-1, this part of IEC 61326 specifies more detailed test
configurations, operational conditions and performance criteria for equipment covered by
Annex A of IEC 61326-1:2020 which is:
– used for testing, measuring or monitoring of protective measures in low-voltage
distribution systems, and;
– powered by battery and/or from the circuit measured, and
– portable.
Examples of such EUTs include, but are not limited to, voltage detectors, insulation testers,
earth continuity testers, earth resistance testers, leakage current clamps, loop impedance
testers, “residual-current-device-testers” (RCD-testers) and phase sequence testers as
defined in IEC 61557 (all parts).
NOTE Particular EMC requirements for equipment covered by IEC 61557-8 and IEC 61557-9 are given in
IEC 61326-2-4.
The manufacturer specifies the environment for which the product is intended to be used
and/or selects the appropriate test level specifications of IEC 61326-1.
2 Normative references
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.
Clause 2 of IEC 61326-1:2020 applies, except as follows:
Addition:
IEC 61326-1:2020, Electrical equipment for measurement, control and laboratory use – EMC
requirements – Part 1: General requirements
IEC 61557 (all parts), Electrical safety in low voltage distribution systems up to 1 000 V AC
and 1 500 V DC – Equipment for testing, measuring or monitoring of protective measures
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61326-1:2020 and
IEC 60050-161 apply.
– 6 – IEC 61326-2-2:2020 © IEC 2020
4 General
Clause 4 of IEC 61326-1:2020 applies.
5 EMC test plan
5.1 General
Subclause 5.1 of IEC 61326-1:2020 applies.
5.2 Configuration of EUT during testing
Subclause 5.2 of IEC 61326-1:2020 applies, except as follows:
Addition:
5.2.4.101 Test and measurement I/O ports
Electrostatic discharge shall be applied to the mated connector or the shield of the unmated
port, but not to the inner pins of shielded port or cable connectors (for example, BNC, D-
subminiature, GPIB, RS232, USB, etc.).
For the test according to IEC 61000-4-3, the following conditions shall be met. Test and
measurement ports shall be connected with test leads recommended or supplied with the
EUT. Where the test leads are unspecified, typical test leads shall be used. The test leads
shall be connected and arranged in a typical configuration for each operation mode, according
to Figure 101.
If the test leads recommended or supplied are longer than 1 m, each one should be bundled
so that the test object is in a horizontal distance of 1 m to the EUT.
The test leads shall be arranged 0,1 m apart in a horizontal position on the test table.

a
EM-clamp(s) (if necessary).
Figure 101 – Test set-up for portable testing, measuring
and monitoring equipment based on IEC 61000-4-3

AUXILIARY EQUIPMENT (AE) required for generating or monitoring the test object signal shall
be connected according to Figure 101 via EM-clamps if necessary as described in
IEC 61000-4-6:2013, Clause A.3.
Voltage measurements shall be made with a 1 000 Ω ± 100 Ω resistor (test object) connected
in series with one of the test leads as shown in Figure 102.
For other measurements, the test object shall be specified by the manufacturer and
documented in the test report.
Dimensions in millimetres
a
Decoupling network (if necessary)
b
Auxiliary equipment (for example, voltage source)
c
EM-clamp(s) (if necessary)
Figure 102 – Example of connection details for voltage measurements
Current measurements shall be made with a 100 Ω ± 10 Ω resistor (test object) connected in
parallel with the test leads as shown in Figure 103.
Dimensions in millimetres
a
Decoupling network (if necessary)
b
Auxiliary equipment (for example, current source)
c
EM-clamp(s) (if necessary)
Figure 103 – Example of connection details for current measurements
5.3 Operation conditions of EUT during testing
Subclause 5.3 of IEC 61326-1:2020 applies, except as follows:
Addition:
– 8 – IEC 61326-2-2:2020 © IEC 2020
5.3.101 Operational conditions
Test and measurement equipment shall be set to the most sensitive ranges or combination of
ranges unless other ranges are known to provide worst-case immunity results within normal
application. Each function of multifunctional equipment shall be tested separately.
5.4 Specification of FUNCTIONAL PERFORMANCE
Subclause 5.4 of IEC 61326-1:2020 applies.
5.5 Test description
Subclause 5.5 of IEC 61326-1:2020 applies.
6 Immunity requirements
6.1 Conditions during the tests
Subclause 6.1 of IEC 61326-1:2020 applies.
6.2 Immunity test requirements
Subclause 6.2 of IEC 61326-1:2020 is replaced by the following:
Table A.1 of IEC 61326-1:2020 gives the immunity requirements for equipment covered by the
scope of this document.
Addition:
6.2.101 Electromagnetic field
If the maximum dimension of the equipment enclosure is <0,3 m, the test is performed from
only one side in accordance with F
...