IEC 61010-2-033:2019

Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-033: Particular requirements for hand-held multimeters and other meters for domestic and professional use, capable of measuring mains voltage

IEC 61010-2-033:2019 specifies safety requirements for hand-held multimeters for domestic and professional use, capable of measuring mains. Hand-held multimeters are multi-range multifunction measuring instruments intended to measure voltage and other electrical quantities such as resistance or current. Their primary purpose is to measure voltage on a live mains. They are suitable to be supported by one hand during normal use. This second edition cancels and replaces the first edition published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- The scope has been reduced to hand-held multimeters. Voltmeters and clamp multimeters have been removed. They are addressed respectively by IEC 61010-2-030 and IEC 61010-2-032. The relevant definitions have been removed.
- Subclause 4.4.2.101 has been relocated into Clause 102.
- Clearances and creepage distances for wet locations and for measuring circuit terminals exceeding 1 000 V a.c. or 1 414 V d.c. have been specified.
- Subclause 14.101 related to "Circuits or components used as transient overvoltage limiting devices in measuring circuits used to measure mains" has been removed.
- References to IEC 61010-031 for probe assemblies and IEC 61010-2-032 for current sensors have been added.
- Requirements for protection against mains overvoltage measuring circuits have been added.
- Clause 102 has been rewritten.
- Requirements for measuring circuits from 1 000 V to 3 000 V have been added.
- An informative Annex CC about dimensions of 4-mm banana terminals has been added.
- A flowchart for insulation according to the type of circuit has been added in a new Annex DD.

Exigences de sécurité pour appareils électriques de mesurage, de régulation et de laboratoire - Partie 2-033: Exigences particulières pour les multimètres portatifs pour usage domestique et professionnel, capables de mesurer la tension réseau

L'IEC 61010-2-033:2019 spécifie les exigences de sécurité applicables aux multimètres portatifs pour usage domestique et professionnel, capables de mesurer la tension réseau. Les multimètres portatifs sont des instruments de mesure multifonctions et avec plusieurs plages, destinés à mesurer la tension et d'autres grandeurs électriques telles que la résistance ou le courant. Ils ont pour objectif principal de mesurer la tension sur un réseau sous tension. Ils peuvent être tenus à la main en utilisation normale. Cette deuxième édition annule et remplace la première édition parue en 2012. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- Le domaine d'application a été réduit aux multimètres portatifs. Les voltmètres et les pinces multimétriques ont été supprimés. Ils sont traités respectivement par l'IEC 61010­2­030 et l'IEC 61010-2-032. Les définitions correspondantes ont été supprimées.
- Le 4.4.2.101 a été intégré à l'Article 102.
- Les distances d'isolement et les lignes de fuite applicables aux emplacements humides et aux bornes des circuits de mesure dont la tension alternative est supérieure à 1 000 V ou la tension continue est supérieure à 1 414 V ont été spécifiées.
- Les exigences pour "Circuits ou composants utilisés comme limiteurs de surtensions dans les circuits de mesure utilisés sur un RESEAU" ont été supprimées. Le paragraphe 14.102 a été renuméroté 14.101.
- Des références à l'IEC 61010-031 pour les sondes équipées et à l'IEC 61010-2-032 pour les capteurs de courant ont été ajoutées.
- Des exigences relatives à la protection des circuits de mesure contre les surtensions du réseau ont été ajoutées.
- L'Article 102 a été reformulé.
- Des exigences concernant les circuits de mesure entre 1 000 V et 3 000 V ont été ajoutées.
- Une Annexe CC informative relative aux dimensions des bornes "banane" de 4 mm a été ajoutée.
- Un organigramme de l'isolation selon le type de circuit a été ajouté dans une nouvelle Annexe DD.

General Information

• Status: Published
• Publication Date: 20-Jun-2019
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 19.080 - Electrical and electronic testing
• ICS: 71.040.10 - Chemical laboratories. Laboratory equipment
• Technical Committee: TC 66 - Safety of measuring, control and laboratory equipment
• Drafting Committee: WG 2 - TC 66/WG 2

Relations

• Revised: IEC 61010-2-033:2023 - Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-033: Particular requirements for hand-held multimeters and other meters for domestic and professional use, capable of measuring mains voltage
• Effective Date: 05-Sep-2023
• Revises: IEC 61010-2-033:2012 - Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-033: Particular requirements for hand-held multimeters and other meters, for domestic and professional use, capable of measuring mains voltage
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61010-2-033 ®
Edition 2.0 2019-06
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Safety requirements for electrical equipment for measurement, control
and laboratory use –
Part 2-033: Particular requirements for hand-held multimeters and other METERS,
for domestic and professional use, capable of measuring MAINS voltage

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.

IEC Central Office Tel.: [phone]
3, rue de Varembé [e-mail]
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

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variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
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IEC publications issued since 2002. Some entries have been
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If you wish to give us your feedback on this publication or CISPR.

need further assistance, please contact the Customer Service

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IEC 61010-2-033 ®
Edition 2.0 2019-06
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Safety requirements for electrical equipment for measurement, control

and laboratory use –
Part 2-033: Particular requirements for hand-held multimeters and other METERS,

for domestic and professional use, capable of measuring MAINS voltage

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 19.080; 71.040.10 ISBN 978-2-8322-7106-3

– 2 – IEC 61010-2-033:2019 RLV © IEC 2019

CONTENTS
FOREWORD . 4

INTRODUCTION . 7

1 Scope and object . 8

2 Normative references . 9

3 Terms and definitions . 9

4 Tests . 10

5 Marking and documentation . 11
6 Protection against electric shock . 14
7 Protection against mechanical HAZARDS . 17
8 Resistance to mechanical stresses . 17
9 Protection against the spread of fire . 18
10 Equipment temperature limits and resistance to heat . 18
11 Protection against HAZARDS from fluids and solid foreign objects . 18
12 Protection against radiation, including laser sources, and against sonic and
ultrasonic pressure . 18
13 Protection against liberated gases and substances, explosion and implosion . 18
14 Components and subassemblies . 18
15 Protection by interlocks . 19
16 HAZARDS resulting from application . 19
17 RISK assessment . 20
101 Measuring circuits . 20
102 Indicating devices . 25
Annexes . 28
Annex K (normative) Insulation requirements not covered by 6.7 . 28
Annex L (informative) Index of defined terms . 36
Annex AA (normative) Measurement categories . 37
Annex BB (informative) HAZARDS pertaining to measurements performed in certain
environments . 40
Annex CC (informative) 4-mm "banana" TERMINALS . 43

Annex DD (informative) Flowchart for insulation according to the type of circuit . 45
Bibliography . 48

Figure 4 – Acceptable arrangement of protective means against electric shock . 14
Figure AA.1 – Example to identify the locations of measuring circuits . 38
Figure CC.1 – Recommended dimensions of 4-mm TERMINALS . 44
Figure DD.1 – Requirements for CLEARANCE, CREEPAGE DISTANCE and solid insulation . 47

Table 101 – CLEARANCES and CREEPAGE DISTANCES for measuring circuit TERMINALS
with HAZARDOUS LIVE conductive parts up to 1 000 V a.c. or 1 500 V d.c . 15
Table 102 – Impulse voltages . 25
Table K.101 – CLEARANCES of measuring circuits RATED for MEASUREMENT CATEGORIES
III and IV . 29

Table K.102 – a.c. test voltages for testing electric strength of solid insulation in

measuring circuits RATED for MEASUREMENT CATEGORIES III and IV . 31

Table K.103 – Impulse test voltages for testing electric strength of solid insulation in

RATED for MEASUREMENT CATEGORIES III and IV . 31
measuring circuits
Table K.104 – Test voltages for testing long-term stress of solid insulation in
measuring circuits RATED for MEASUREMENT CATEGORIES III and IV . 32

Table K.105 – Minimum values for distance or thickness of solid insulation in

measuring circuits RATED for MEASUREMENT CATEGORIES III and IV . 34

Table AA.1 – Characteristics of MEASUREMENT CATEGORIES . 39

– 4 – IEC 61010-2-033:2019 RLV © IEC 2019

INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT

FOR MEASUREMENT, CONTROL, AND LABORATORY USE –

Part 2-033: Particular requirements for hand-held multimeters

and other METERS, for domestic and professional use, capable of

measuring MAINS voltage
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.
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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.

International Standard IEC 61010-2-033 has been prepared by IEC technical committee 66:
Safety of measuring, control and laboratory equipment.

This second edition cancels and replaces the first edition published in 2012. This edition
constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous
edition:
a) The scope has been reduced to hand-held multimeters. Voltmeters and clamp multimeters

have been removed. They are addressed respectively by IEC 61010-2-030 and

IEC 61010-2-032. The relevant definitions have been removed.
b) Subclause 4.4.2.101 has been relocated into Clause 102.
c) CLEARANCES and CREEPAGE DISTANCES for WET LOCATIONS and for measuring circuit
TERMINALS exceeding 1 000 V a.c. or 1 414 V d.c. have been specified.
d) Subclause 14.101 related to "Circuits or components used as TRANSIENT OVERVOLTAGE
limiting devices in measuring circuits used to measure MAINS" has been removed.
e) References to IEC 61010-031 for probe assemblies and IEC 61010-2-032 for current
sensors have been added.
f) Requirements for protection against MAINS overvoltage measuring circuits have been
added.
g) Clause 102 has been rewritten.
h) Requirements for measuring circuits from 1 000 V to 3 000 V have been added.
i) An inform
...

IEC 61010-2-033 ®
Edition 2.0 2019-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Safety requirements for electrical equipment for measurement, control
and laboratory use –
Part 2-033: Particular requirements for hand-held multimeters for domestic
and professional use, capable of measuring MAINS voltage

Exigences de sécurité pour appareils électriques de mesurage, de régulation
et de laboratoire –
Partie 2-033: Exigences particulières pour les multimètres portatifs pour usage
domestique et professionnel, capables de mesurer la tension RESEAU

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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CH-1211 Geneva 20 www.iec.ch
Switzerland
colour
About the IEC
inside
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.

need further assistance, please contact the Customer Service

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IEC 61010-2-033 ®
Edition 2.0 2019-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colourcolour
insinsiidede
Safety requirements for electrical equipment for measurement, control

and laboratory use –
Part 2-033: Particular requirements for hand-held multimeters for domestic

and professional use, capable of measuring MAINS voltage

Exigences de sécurité pour appareils électriques de mesurage, de régulation

et de laboratoire –
Partie 2-033: Exigences particulières pour les multimètres portatifs pour usage

domestique et professionnel, capables de mesurer la tension RESEAU

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 19.080; 71.040.10 ISBN 978-2-8322-6995-4

– 2 – IEC 61010-2-033:2019 © IEC 2019
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope and object . 8
2 Normative references . 8
3 Terms and definitions . 9
4 Tests . 9
5 Marking and documentation . 10
6 Protection against electric shock . 12
7 Protection against mechanical HAZARDS . 16
8 Resistance to mechanical stresses . 16
9 Protection against the spread of fire . 16
10 Equipment temperature limits and resistance to heat . 16
11 Protection against HAZARDS from fluids and solid foreign objects . 16
12 Protection against radiation, including laser sources, and against sonic and
ultrasonic pressure . 16
13 Protection against liberated gases and substances, explosion and implosion . 16
14 Components and subassemblies . 16
15 Protection by interlocks . 17
16 HAZARDS resulting from application . 17
17 RISK assessment . 17
101 Measuring circuits . 17
102 Indicating devices . 21
Annexes . 24
Annex K (normative) Insulation requirements not covered by 6.7 . 24
Annex L (informative) Index of defined terms . 30
Annex AA (normative) Measurement categories . 31
Annex BB (informative) HAZARDS pertaining to measurements performed in certain
environments . 34
Annex CC (informative) 4-mm "banana" TERMINALS . 37
Annex DD (informative) Flowchart for insulation according to the type of circuit . 39
Bibliography . 42

Figure 4 – Acceptable arrangement of protective means against electric shock . 13
Figure AA.1 – Example to identify the locations of measuring circuits . 32
Figure CC.1 – Recommended dimensions of 4-mm TERMINALS . 38
Figure DD.1 – Requirements for CLEARANCE, CREEPAGE DISTANCE and solid insulation . 41

Table 101 – CLEARANCES and CREEPAGE DISTANCES for measuring circuit TERMINALS
with HAZARDOUS LIVE conductive parts up to 1 000 V a.c. or 1 500 V d.c . 14
Table 102 – Impulse voltages . 21
Table K.101 – CLEARANCES of measuring circuits RATED for MEASUREMENT CATEGORIES
III and IV . 25

Table K.102 – a.c. test voltages for testing electric strength of solid insulation in
measuring circuits RATED for MEASUREMENT CATEGORIES III and IV . 26
Table K.103 – Impulse test voltages for testing electric strength of solid insulation in
RATED for MEASUREMENT CATEGORIES III and IV . 26
measuring circuits
Table K.104 – Test voltages for testing long-term stress of solid insulation in
measuring circuits RATED for MEASUREMENT CATEGORIES III and IV . 27
Table K.105 – Minimum values for distance or thickness of solid insulation in
measuring circuits RATED for MEASUREMENT CATEGORIES III and IV . 28
Table AA.1 – Characteristics of MEASUREMENT CATEGORIES . 33

– 4 – IEC 61010-2-033:2019 © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT
FOR MEASUREMENT, CONTROL, AND LABORATORY USE –

Part 2-033: Particular requirements for hand-held multimeters
for domestic and professional use, capable of measuring MAINS voltage

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 at
...