IEC 61010-2-034:2023

Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-034: Particular requirements for measurement equipment for insulation resistance and test equipment for electric strength

IEC 61010-2-034:2023 specifies safety requirements to equipment for measuring insulation resistance and to equipment for testing electric strength which have an output voltage exceeding 50 V a.c. or 120 V d.c. This document also applies to combined measuring equipment which has an insulation resistance measurement function or an electric strength test measurement function. This document has the status of a horizontal publication in accordance with IEC Guide 108. It has the status of a group safety publication in accordance with IEC Guide 104. This second edition cancels and replaces the first edition published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) in 1.2.1, requirements for protection against hazards which could occur from reading a voltage have been added to the scope;
b) Clause 2, all normative references have been dated; new normative references have been added;
c) in 4.3.2.5, requirements for power supply have been modified;
d) in 4.3.2.6, requirements for inputs/outputs have been modified;
e) in 5.1.5.101.2, minimum ratings for voltage of measuring terminals are required;
f) in 5.4.2, new ratings for documentation have been added;
g) in 5.4.4, new instructions for operation have been added;
h) in 5.101.1, hazard indicators shall be functional in normal condition and in single fault condition;
i) in 6.6.101.1, insulating material of group I may be allowed for determination of creepage distances of measuring circuit terminals;
j) in 6.6.101.2, Clearances and creepage distances above 1 000 V a.c. and 1 500 V d.c. for measuring circuit terminals in unmated position have been defined;
k) in 6.6.101.3, requirements for measuring circuit terminals in partially mated position have been specified;
l) in 6.6.101.4, requirements for measuring circuit terminals in mated position have been specified;
m) Subclause 6.102 replaces 6.9.103 and has been rephrased;
n) new Subclause 9.101 to consider the protection of measuring circuits against the spread of fire and arc flash has been added. Table 102 has been replaced by Table K.101;
o) In 9.101.2, relocation of 101.3 of previous edition;
p) In 9.101.3, relocation of 101.4 of previous edition, extension to measurement category II and reference to IEC 61000-4-5 for tests;
q) in 9.101.4, requirements for measuring circuit terminals in mated position have been specified;
r) in 9.101.5, relocation of K.103 of previous edition with numerous technical changes;
s) in 14.101, relocation of 14.102. 14.101 of previous edition has been removed;
t) in 101.3, relocation of 101.5 of previous edition, and more requirements added against hazard occurring from reading a voltage value;
u) in K.2.1, another method for determination of clearances of secondary circuits is proposed;
v) in K.3.2, new Table K.15 and Table K.16 for clearance calculation;
w) in K.3.101, relocation of 6.9.104 of previous edition;
x) in K.101.4.1, new Table K.103 and Table K.104 replace Table K.102, Table K.103 and Table K.104;
y) in K.101.4, the subclause has been reviewed. Tables and tests for solid insulation have been modified. Table K.105 replaces Table K.9;
z) Table K.101, replacement of Table K.106;
aa) Clause K.4, redraft of the clause to propose a method for determination of Ut for circuits which reduce transient overvoltages;
bb) Annex EE: addition of a new informative annex for determination of clearances for Table 101.

Exigences de sécurité pour appareils électriques de mesurage, de régulation et de laboratoire - Partie 2-034: Exigences particulières applicables aux appareils de mesure de la résistance d'isolement et aux appareils d'essai de rigidité diélectrique

L'IEC 61010-2-034:2023 spécifie les exigences de sécurité pour les appareils de mesure de la résistance d’isolement et les appareils d’essai de rigidité diélectrique avec une tension de sortie supérieure à 50 V en courant alternatif ou 120 V en courant continu. Le présent document s’applique également aux appareils de mesure combinés équipés d’une fonction de mesure de la résistance d’isolement ou d’une fonction d’essai de rigidité diélectrique. Ce document a le statut d'une publication horizontale conformément au Guide 108 de l'IEC. Il a le statut d’une publication groupée de sécurité conformément au Guide IEC 104. Cette deuxième édition annule et remplace la première édition parue en 2017. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
a) au paragraphe 1.2.1, les exigences relatives à la protection contre les dangers susceptibles de survenir lors de la lecture d’une tension ont été ajoutées au domaine d’application;
b) à l’Article 2, toutes les références normatives ont été datées et de nouvelles références normatives ont été ajoutées;
c) au paragraphe 4.3.2.5, les exigences relatives à l’alimentation électrique ont été modifiées;
d) au paragraphe 4.3.2.6, les exigences relatives aux entrées/sorties ont été modifiées;
e) au paragraphe 5.1.5.101.2, des valeurs assignées minimales de tension des bornes des circuits de mesure sont exigées;
f) au paragraphe 5.4.2, de nouvelles valeurs assignées pour la documentation ont été ajoutées;
g) au paragraphe 5.4.4, de nouvelles instructions de fonctionnement ont été ajoutées;
h) au paragraphe 5.101.1, les indicateurs de danger doivent être fonctionnels en condition normale et en condition de premier défaut;
i) au paragraphe 6.6.101.1, les matériaux isolants du groupe I peuvent être admis pour la détermination des lignes de fuite des bornes des circuits de mesure;
j) au paragraphe 6.6.101.2, les distances d’isolement et les lignes de fuite supérieures à 1 000 V en courant alternatif et à 1 500 V en courant continu pour les bornes des circuits de mesure en position découplée ont été définies;
k) au paragraphe 6.6.101.3, les exigences relatives aux bornes des circuits de mesure en position partiellement couplée ont été spécifiées;
l) au paragraphe 6.6.101.4, les exigences relatives aux bornes des circuits de mesure en position couplée ont été spécifiées;
m) le paragraphe 6.102 remplace le paragraphe 6.9.103 et a été reformulé;
n) un nouveau paragraphe 9.101 a été ajouté pour prendre en compte la protection des circuits de mesure contre la propagation du feu et les arcs électriques. Le Tableau 102 a été remplacé par le Tableau K.101;
o) le paragraphe 101.3 de l’édition précédente a été déplacé au paragraphe 9.101.2;
p) le paragraphe 101.4 de l’édition précédente a été déplacé au paragraphe 9.101.3. Ce paragraphe a été étendu à la catégorie de mesure II et fait référence à l’IEC 61000‑4-5 pour les essais;
q) au paragraphe 9.101.4, les exigences relatives aux bornes des circuits de mesure en position couplée ont été spécifiées;
r) le paragraphe K.103 de l’édition précédente a été déplacé au paragraphe 9.101.5 et inclut de nombreuses modifications techniques;
s) le paragraphe 14.101 de l’édition précédente a été supprimé et le paragraphe 14.102 de l’édition précédente a été déplacé au paragraphe 14.101;
t) le paragraphe 101.5 de l’édition précédente a été déplacé au paragraphe 101.3 et des exigences supplémentaires ont été ajoutées contre les dangers liés à la lecture d’une valeur de tension;
u) au paragraphe K.2.1, une autre méthode de détermination des distances d’isolement des circuits secondaires a été proposée;
v) au paragraphe K.3.2, le Tableau K.15 et le Tableau K.16 ont été modifiés pour le calcul de la distance d’isolement;
w) le paragraphe 6.9.104 de l’édition précédente a été déplacé au paragraphe K.3.101;
x) au paragraphe K.101.4.1, les nouveaux Tableau

General Information

• Status: Published
• Publication Date: 16-Jul-2023
• 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
• Current Stage: PPUB - Publication issued
• Start Date: 05-May-2023
• Completion Date: 17-Jul-2023

Relations

• Revises: IEC 61010-2-034:2017 - Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-034: Particular requirements for measurement equipment for insulation resistance and test equipment for electric strength
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61010-2-034 ®
Edition 2.0 2023-07
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This extended version of IEC 61010-2-034:2023 includes the content of the references made to
IEC 61010-1:2010 and IEC 61010-1:2010/AMD1:2016

GROUP SAFETY PUBLICATION
Safety requirements for electrical equipment for measurement, control, and
laboratory use –
Part 2-034: Particular requirements for measurement equipment for insulation
resistance and test equipment for electric strength

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
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About the IEC
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International Standards for all electrical, electronic and related technologies.

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IEC 61010-2-034 ®
Edition 2.0 2023-07
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This extended version of IEC 61010-2-034:2023 includes the content of the references made to
IEC 61010-1:2010 and IEC 61010-1:2010/AMD1:2016
GROUP SAFETY PUBLICATION
Safety requirements for electrical equipment for measurement, control, and
laboratory use –
Part 2-034: Particular requirements for measurement equipment for insulation
resistance and test equipment for electric strength
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 19.080; 71.040.10 ISBN 978-2-8322-7284-8

TC 66/Publication 61010-1 (2010), Third edition/I-SH 01
SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT
FOR MEASUREMENT, CONTROL, AND LABORATORY USE –

Part 1: General requirements
INTERPRETATION SHEET 1
This interpretation sheet has been prepared by IEC technical committee 66: Safety of
measuring, control and laboratory equipment.
The text of this interpretation sheet is based on the following documents:
ISH Report on voting
66/497A/ISH 66/505/RVD
Full information on the voting for the approval of this interpretation sheet can be found in the
report on voting indicated in the above table.
___________
IEC 61010-1:2010 contains a requirement in 6.8.3.1 pertaining to voltage testers for type tests
as follows:
“The generator shall be able to supply a power of at least 500 VA.”
This has given rise to the following questions:
How does one interpret the requirement for voltage testers in 6.8.3.1 of IEC 61010-1:2010?
Specifically, this subclause requires that “The generator shall be able to supply a power of at
least 500 VA.” Does this requirement apply throughout the rated output range of the voltage
tester? What is meant by the word “generator”? Is the “generator” the power supply within the
voltage tester, or the voltage tester output, or something else?
Interpretation:
“A voltage tester used for type tests must be able to deliver at least 500 VA at its full-rated
output voltage. It does not necessarily need to deliver 500 VA if set for lower voltages.
For example, a voltage tester that can deliver 100 mA at any test output voltage up to 5 000 V
(and a current corresponding to 500 VA above 5 000 V) would meet the requirement.
The requirements for voltage testers used for routine (production line) tests are included in
Annex F. The requirements of 6.8.3.1 do not apply to these voltage testers.”

February 2013 ICS 19.080, 71.040.10 French text overleaf

– 2 – IEC 61010-2-034:2023 EXV © IEC 2023
CONTENTS
FOREWORD . 11
INTRODUCTION to IEC 61010-1:2010 and IEC 61010 1:2010/AMD1:2016 . 15
INTRODUCTION . 16
1 Scope and object . 17
1.1 Scope . 17
1.1.1 Equipment included in scope . 17
1.1.2 Equipment excluded from scope . 17
1.1.3 Computing equipment . 18
1.2 Object . 18
1.2.1 Aspects included in scope . 18
1.2.2 Aspects excluded from scope . 18
1.3 Verification . 18
1.4 Environmental conditions . 19
1.4.1 Normal environmental conditions . 19
1.4.2 Extended environmental conditions . 19
2 Normative references . 19
3 Terms and definitions . 22
3.1 Equipment and states of equipment . 22
3.2 Parts and accessories . 22
3.3 Quantities . 23
3.4 Tests . 23
3.5 Safety terms . 24
3.6 Insulation . 25
4 Tests . 27
4.1 General . 27
4.2 Sequence of tests. 27
4.3 Reference test conditions . 27
4.3.1 Environmental conditions . 27
4.3.2 State of equipment . 28
4.4 Testing in SINGLE FAULT CONDITION . 29
4.4.1 General . 29
4.4.2 Application of fault conditions . 30
4.4.3 Duration of tests . 32
4.4.4 Conformity after application of fault conditions . 32
5 Marking and documentation . 33
5.1 Marking . 33
5.1.1 General . 33
5.1.2 Identification . 33
5.1.3 MAINS supply . 34
5.1.4 Fuses . 35
5.1.5 TERMINALS, connections and operating devices . 36
5.1.6 Switches and circuit-breakers . 38
5.1.7 Equipment protected by DOUBLE INSULATION or REINFORCED
INSULATION . 38
5.1.8 Field-wiring TERMINAL boxes . 38
5.2 Warning markings . 39

5.3 Durability of markings . 39
5.4 Documentation . 39
5.4.1 General . 39
5.4.2 Equipment RATINGS . 40
5.4.3 Equipment installation . 41
5.4.4 Equipment operation . 41
5.4.5 Equipment maintenance and service . 42
5.4.6 Integration into systems or effects resulting from special conditions . 43
5.101 HAZARD indicator . 43
5.101.1 General . 43
5.101.2 HAZARD indicator light for fixed equipment . 43
6 Protection against electric shock . 44
6.1 General . 44
6.1.1 Requirements . 44
6.1.2 Exceptions . 44
6.2 Determination of ACCESSIBLE parts . 44
6.2.1 General . 44
6.2.2 Examination. 45
6.2.3 Openings above parts that are HAZARDOUS LIVE. 45
6.2.4 Openings for pre-set controls. 45
6.3 Limit values for ACCESSIBLE parts . 46
6.3.1 Levels in NORMAL CONDITION . 46
6.3.2 Levels in SINGLE FAULT CONDITION . 46
6.4 Primary means of protection . 49
6.4.1 General . 49
6.4.2 ENCLOSURES and PROTECTIVE BARRIERS . 49
6.4.3 BASIC INSULATION . 49
6.4.4 Impedance . 49
6.5 Additional means of protection in case of SINGLE FAULT CONDITIONS . 49
6.5.1 General . 49
6.5.2 PROTECTIVE BONDING . 50
6.5.3 SUPPLEMENTARY INSULATION and REINFORCED INSULATION .
...

IEC 61010-2-034 ®
Edition 2.0 2023-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
GROUP SAFETY PUBLICATION
PUBLICATION GROUPÉE DE SÉCURITÉ
Safety requirements for electrical equipment for measurement, control, and
laboratory use –
Part 2-034: Particular requirements for measurement equipment for insulation
resistance and test equipment for electric strength

Exigences de sécurité pour appareils électriques de mesurage, de régulation et
de laboratoire –
Partie 2-034: Exigences particulières applicables aux appareils de mesure de la
résistance d’isolement et aux appareils d’essai de rigidité diélectrique

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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International Standards for all electrical, electronic and related technologies.

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IEC 61010-2-034 ®
Edition 2.0 2023-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
GROUP SAFETY PUBLICATION
PUBLICATION GROUPÉE DE SÉCURITÉ

Safety requirements for electrical equipment for measurement, control, and

laboratory use –
Part 2-034: Particular requirements for measurement equipment for insulation

resistance and test equipment for electric strength

Exigences de sécurité pour appareils électriques de mesurage, de régulation et

de laboratoire –
Partie 2-034: Exigences particulières applicables aux appareils de mesure de la

résistance d’isolement et aux appareils d’essai de rigidité diélectrique

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 19.080; 71.040.10 ISBN 978-2-8322-6737-0

– 2 – IEC 61010-2-034:2023 © IEC 2023
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope and object . 8
2 Normative references . 9
3 Terms and definitions . 10
4 Tests . 10
5 Marking, documentation and HAZARD indicator . 11
6 Protection against electric shock . 15
7 Protection against mechanical HAZARDS . 22
8 Resistance to mechanical stresses . 22
9 Protection against the spread of fire and arc flash . 22
10 Equipment temperature limits and resistance to heat . 28
11 Protection against HAZARDS from fluids and solid foreign objects . 28
12 Protection against radiation, including laser sources, and against sonic and
ultrasonic pressure . 28
13 Protection against liberated gases and substances, explosion and implosion . 28
14 Components and subassemblies . 28
15 Protection by interlocks . 28
16 HAZARDS resulting from application . 28
17 RISK assessment . 28
101 Measuring circuits . 29
Annexes . 32
Annex K (normative) Insulation requirements not covered by 6.7 . 32
Annex L (informative) Index of defined terms . 46
Annex AA (normative) MEASUREMENT CATEGORIES . 47
Annex BB (informative) HAZARDS pertaining to measurements performed in certain
environments . 50
Annex CC (informative) 4 mm "banana" TERMINALS . 53
Annex DD (informative) Flowchart for insulation according to the type of circuit . 55
Annex EE (informative) Determination of CLEARANCES for Table 101 . 58
Bibliography . 59

Figure 101 – Duration of current flow versus body current for a.c. and d.c. currents. 16
Figure 102 – Test circuit for induced voltage and current . 27
Figure K.101 – Circuit with protective screen . 36
Figure K.102 – Circuit with DOUBLE INSULATION . 37
Figure K.103 – Test circuit for evaluation of TRANSIENT OVERVOLTAGE attenuation . 40
Figure AA.1 – Example to identify the locations of MEASUREMENT CATEGORIES . 48
Figure CC.1 – Recommended dimensions of 4 mm TERMINALS . 54
Figure DD.1 – Requirements for CLEARANCE, CREEPAGE DISTANCE and solid insulation . 57

Table 101 – CLEARANCES for unmated measuring circuit TERMINALS. 17

Table K.15 – CLEARANCE values for the calculation of K.3.2 . 33
Table K.16 – Test voltages based on CLEARANCES . 34
Table K.101 – Impulse voltages for circuits connected to MAINS . 39
Table K.102 – CLEARANCES for measuring circuits RATED for MEASUREMENT CATEGORIES . 41
Table K.103 – Impulse test voltages for testing electric strength of solid insulation for
measuring circuits RATED for MEASUREMENT CATEGORIES . 42
Table K.104 – a.c. test voltages for testing electric strength of solid insulation for
RATED for MEASUREMENT CATEGORIES . 42
measuring circuits
Table K.105 – Minimum values for distance or thickness of solid insulation for
measuring circuits RATED for MEASUREMENT CATEGORIES . 44
Table AA.1 – Characteristics of MEASUREMENT CATEGORIES . 49
Table EE.1 – CLEARANCES values for Table 101 . 58

– 4 – IEC 61010-2-034:2023 © IEC 2023
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT
FOR MEASUREMENT, CONTROL, AND LABORATORY USE –

Part 2-034: Particular requirements for measurement equipment
for insulation resistance and test equipment for electric strength

FOREWORD
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