FprEN IEC 61010-2-032:2023

Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-032: Particular requirements for hand-held and hand-manipulated current sensors for electrical test and measurement

IEC 61010-2-032:2023 specifies safety requirements for hand-held and hand-manipulated current sensors intended for measuring, detecting or injecting current, or indicating current waveforms on circuits without physically opening the current path of the circuit being measured. These current sensors are hand-manipulated before and/or after a test or measurement, but are not necessarily hand-held during the test or measurement. They can be stand-alone current sensors or accessories to other equipment or parts of combined equipment. These include measurement circuits which are part of electrical test and measurement equipment, laboratory equipment, or process control equipment. This fifth edition cancels and replaces the fourth edition published in 2019. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) In 1.1.1, definitions of current sensor types have been moved to a new Annex FF; b) Clause 2, all normative references have been dated and new normative references have been added; c) 3.2.103, a new definition protective fingerguard has been added which replaces the previous definition of protective barrier; d) 4.4.2.101 is a new subclause about surge protective devices; e) in 5.1.5.101.2, minimum ratings for voltage of measuring terminals are required; f) Subclause 6.5.1 has been modified; g) Subclause 6.5.5 is no longer used; h) Subclause 6.6.101 modifies 6.6.101 and 6.6.102 of previous edition: 1) in 6.6.101.1, insulating material of group I may be allowed for determination of creepage distances of measuring circuit terminals; 2) in 6.6.101.2, clearances and creepage distances up to 3 000 V for measuring circuit terminals in unmated position have been defined; 3) in 6.6.101.3, requirements for measuring circuit terminals in partially mated position have been specified; 4) in 6.6.101.4, requirements for measuring circuit terminals in mated position have been specified; 5) Subclause 6.6.101.5 replaces 6.6.102; i) Subclause 6.6.102 replaces 6.101 of previous edition with modifications; j) Subclause 6.101.2 replaces 6.9.101.1 of previous edition with modifications; k) Subclause 6.101.3 replaces 6.9.101.2 of previous edition with modifications; l) Subclause 6.101.4 replaces 6.9.102 of previous edition with modifications; m) in 8.101, jaw ends abrasion test has been modified; n) 8.105 is a new subclause for input/output leads attachment has been added; 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) Table 104 has been replaced by Table K.101: r) in 9.102, relocation of Clause 102 of previous edition; s) in 14.101, relocation of 14.102. Subclause 14.101 of previous edition has been deleted; t) 101.3 is a new subclause for protections against hazard occurring from reading a voltage value in replacement of Clause EE.5 of previous edition; u) in Table D.101, transients are disregarded for insulation between jaw ends and input/output circuits; v) in Clause F.101, test voltages for routine test of jaws have been modified; w) in K.2.1, another method for determination of clearances of secondary circuits is proposed; x) in K.3.2, new Table K.15 and Table K.16 for clearance calculatio

Sicherheitsbestimmungen für elektrische Mess-, Steuer-, Regel- und Laborgeräte – Teil 2-032: Besondere Anforderungen für handgehaltene und handbediente Stromsonden für elektrische Prüfungen und Messungen

Exigences de sécurité pour appareils électriques de mesurage, de régulation et de laboratoire - Partie 2-032 : Exigences particulières pour les capteurs de courant, portatifs et manipulés manuellement, pour essai électrique et mesurage

L'IEC 61010-2-032:2023 spécifie les exigences de sécurité pour les capteurs de courant portatifs et manipulés à la main pour mesurer, détecter ou injecter du courant, ou afficher les formes d’onde du courant sur les circuits sans ouverture physique du chemin du courant sur le circuit mesuré. Ces capteurs de courant sont manipulés manuellement avant et/ou après un essai ou un mesurage, mais il n’est pas nécessaire qu’ils soient portatifs pendant l’essai ou le mesurage. Les capteurs de courant peuvent être autonomes, ou accessoires d’autres appareils ou parties d’appareils combinés. Cela comprend les circuits de mesure qui font partie des appareils électriques d’essai et de mesure, du matériel de laboratoire ou des appareils de contrôle de procédés industriels. Cette cinquième édition annule et remplace la quatrième édition parue en 2019. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente: a) au paragraphe 1.1.1, les définitions des types de capteurs de courant ont été déplacées vers une nouvelle Annexe FF; b) à l’Article 2, toutes les références normatives ont été datées et de nouvelles références normatives ont été ajoutées; c) au paragraphe 3.2.103, une nouvelle définition de protège-doigts a été ajoutée pour remplacer la définition précédente de barrière de protection; d) le paragraphe 4.4.2.101 est un nouveau paragraphe sur les dispositifs de protection contre les surtensions; e) au paragraphe 5.1.5.101.2, des valeurs assignées minimales de tension des bornes des circuits de mesure sont exigées; f) le paragraphe 6.5.1 a été modifié; g) le paragraphe 6.5.5 a été supprimé; h) le paragraphe 6.6.101 modifie les paragraphes 6.6.101 et 6.6.102 de l’édition précédente: 1) au paragraphe 6.6.101.1, les matériaux isolants du groupe I peuvent être admis pour la détermination des distances d’isolement des bornes des circuits de mesure; 2) au paragraphe 6.6.101.2, les distances d’isolement et les lignes de fuite inférieures à 3 000 V pour les bornes des circuits de mesure en position découplée ont été définies; 3) au paragraphe 6.6.101.3, des exigences relatives aux bornes des circuits de mesure en position partiellement couplée ont été spécifiées; 4) au paragraphe 6.6.101.4, des exigences relatives aux bornes des circuits de mesure en position couplée ont été spécifiées; 5) le paragraphe 6.6.101.5 remplace le paragraphe 6.6.102; i) le paragraphe 6.6.102 remplace le paragraphe 6.101 de l’édition précédente avec des modifications; j) le paragraphe 6.101.2 remplace le paragraphe 6.9.101.1 de l’édition précédente avec des modifications; k) le paragraphe 6.101.3 remplace le paragraphe 6.9.101.2 de l’édition précédente avec des modifications; l) le paragraphe 6.101.4 remplace le paragraphe 6.9.102 de l’édition précédente avec des modifications; m) au paragraphe 8.101, l’essai d’abrasion des extrémités de la mâchoire a été modifié; n) le paragraphe 8.105 est un nouveau paragraphe concernant la fixation des cordons d’entrée/sortie; o) le paragraphe 101.3 de la précédente édition a été déplacé en 9.101.2; p) le paragraphe 101.4 de la précédente édition 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) le Tableau 104 a été remplacé par le Tableau K.101; r) l’Article 102 de la précédente édition a été déplacé

Varnostne zahteve za električno opremo za meritve, nadzor in laboratorijsko uporabo - 2-032. del: Posebne zahteve za ročne in ročno vodene tokovne senzorje za električno preskušanje in meritve

General Information

• Status: Not Published
• Publication Date: 22-Oct-2023
• ICS: 19.080 - Electrical and electronic testing
• Technical Committee: CLC/TC 66X - Safety of measuring, control, and laboratory equipment
• Drafting Committee: IEC/TC 66 - IEC_TC_66
• Current Stage: 5060 - Voting results sent to TC, SR - Formal Approval
• Start Date: 21-Jul-2023
• Completion Date: 21-Jul-2023
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Mandate: M/511 - Mandate to CEN, CENELEC and ETSI relating to harmonised standards in the field of the Low Voltage Directive
• Ref Project: kSIST FprEN IEC 61010-2-032:2023 - Safety requirements for electrical equipment for measurement, control and laboratory use - Part 2-032: Particular requirements for hand-held and hand-manipulated current sensors for electrical test and measurement

Relations

• Revises: EN IEC 61010-2-032:2021 - Safety requirements for electrical equipment for measurement, control and laboratory use - Part 2-032: Particular requirements for hand-held and hand-manipulated current sensors for electrical test and measurement
• Effective Date: 24-May-2022

Overview

FprEN IEC 61010-2-032:2023 is a crucial international standard developed by the International Electrotechnical Commission (IEC) and adopted by the CLC. It specifies safety requirements for hand-held and hand-manipulated current sensors used in electrical test, measurement, and laboratory equipment. These sensors measure, detect, or inject current and indicate current waveforms without physically opening the circuit under test, ensuring non-intrusive testing. The standard is intended to promote safety and reliability for devices either used as stand-alone sensors or as accessories integrated into larger equipment, relevant for electrical test and measurement, process control, and laboratory applications.

This fifth edition replaces the 2019 version, incorporating significant technical revisions such as updated definitions, enhanced protective features, and stricter requirements for insulation, surge protection, mechanical robustness, and measurement circuit terminals.

Key Topics

• Scope and Object: Defines requirements tailored specifically to hand-held and hand-manipulated current sensors that interact with live electrical circuits safely without circuit interruption.

• Protective Features: Introduction of a new definition for the protective fingerguard replacing the older concept of protective barriers to enhance user safety when handling sensor jaws.

• Surge Protection: Addition of subclause 4.4.2.101 addressing surge protective devices to safeguard against transient overvoltages and improve device durability.

• Measuring Terminals: Enhanced minimum voltage ratings and detailed clearance and creepage distance requirements for measuring terminals in various mating positions (unmated, partially mated, and fully mated) to reduce electrical hazards.

• Mechanical Safety: Updated test procedures for mechanical hazards, including abrasion and impact testing for jaw ends and new subclauses on input/output lead attachment to verify mechanical integrity.

• Hazard and Risk Management: Refined clauses specifying protections against electric shock, thermal limits, spread of fire and arc flash, ingress of fluids and foreign objects, and hazards resulting from specific measurement conditions.

• Insulation and Clearances: New methods and tables (K.15, K.16) for calculating and determining clearances and insulation levels tailored to reduce risk from transient overvoltages.

• Measurement Categories: Updated annexes defining measurement categories and environmental hazard considerations, ensuring sensors meet appropriate application-specific safety requirements.

• Routine Testing: Modified test voltages for jaws and input/output circuits to maintain consistent quality assurance and product safety during manufacturing.

Applications

The standard applies to a broad spectrum of current sensing devices critical for safe operation in electrical testing, control, and laboratory environments:

• Electrical Test Equipment: Hand-held current sensors used by electrical technicians to measure current flow safely on energized circuits.

• Laboratory Instrumentation: Devices employed in chemical or electrical laboratories where precise and safe current measurement and monitoring are essential.

• Process Control Equipment: Sensors integrated into automated control systems that require reliable current sensing to maintain process safety and equipment integrity.

• Clamp Meters and Accessories: Clamp-type current sensors as stand-alone tools or integrated parts of multifunction meters adhering to specified safety and performance criteria.

• Industrial Maintenance: Tools used for preventive maintenance, troubleshooting, and monitoring in industrial electrical installations, ensuring operator protection.

Related Standards

This standard complements and references various IEC publications that together form a comprehensive framework for electrical equipment safety:

• IEC 61010 Series: The overarching series governing safety requirements for electrical equipment for measurement, control, and laboratory use.

• IEC 61000-4-5: Related to surge immunity testing, referenced to align surge protective device requirements.

• Other Parts of IEC 61010-2: Addressing specialized equipment safety aspects, ensuring harmonized safety across different types of electrical measurement instruments.

• ISO/IEC Directives Part 2: Guiding the development of standardized documentation and IEC standard drafting.

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Keywords: IEC 61010-2-032, hand-held current sensors, hand-manipulated sensors, electrical test equipment safety, laboratory equipment safety, measurement safety standards, surge protection, insulation requirements, electrical measurement safety, clamp meter safety.

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN IEC 61010-2-032:2022
01-december-2022
Varnostne zahteve za električno opremo za meritve, nadzor in laboratorijsko
uporabo - 2-032. del: Posebne zahteve za ročne in ročno vodene tokovne senzorje
za električno preskušanje in meritve
Safety requirements for electrical equipment for measurement, control and laboratory
use - Part 2-032: Particular requirements for hand-held and hand-manipulated current
sensors for electrical test and measurement
Sicherheitsbestimmungen für elektrische Mess-, Steuer-, Regel- und Laborgeräte – Teil 2
-032: Besondere Anforderungen für handgehaltene und handbediente Stromsonden für
elektrische Prüfungen und Messungen
Exigences de sécurité pour appareils électriques de mesurage, de régulation et de
laboratoire - Partie 2-032 : Exigences particulières pour les capteurs de courant, portatifs
et manipulés manuellement, pour essai électrique et mesurage
Ta slovenski standard je istoveten z: prEN IEC 61010-2-032:2022
ICS:
19.080 Električno in elektronsko Electrical and electronic
preskušanje testing
71.040.10 Kemijski laboratoriji. Chemical laboratories.
Laboratorijska oprema Laboratory equipment
oSIST prEN IEC 61010-2-032:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 61010-2-032:2022

oSIST prEN IEC 61010-2-032:2022
66/768/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61010-2-032 ED5
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2022-10-14 2023-01-06
SUPERSEDES DOCUMENTS:
66/762/RR
IEC TC 66 : SAFETY OF MEASURING, CONTROL AND LABORATORY EQUIPMENT
SECRETARIAT: SECRETARY:
United Kingdom Ms Stephanie Lavy
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

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:
Safety requirements for electrical equipment for measurement, control and laboratory use -
Part 2-032: Particular requirements for hand-held and hand-manipulated current sensors for
electrical test and measurement

PROPOSED STABILITY DATE: 2025
NOTE FROM TC/SC OFFICERS:
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.

oSIST prEN IEC 61010-2-032:2022
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1 CONTENTS
2 CONTENTS . 2
3 FOREWORD. 4
4 INTRODUCTION . 7
5 1 Scope and object . 8
6 2 Normative references . 11
7 3 Terms and definitions . 12
8 4 Tests . 13
9 5 Marking, documentation and indicator . 14
10 6 Protection against electric shock . 17
11 7 Protection against mechanical HAZARDS . 25
12 8 Resistance to mechanical stresses . 25
13 9 Protection against the spread of fire and arc flash . 32
14 10 Equipment temperature limits and resistance to heat . 38
15 11 Protection against HAZARDS from fluids and solid foreign objects . 39
16 12 Protection against radiation, including laser sources, and against sonic and
17 ultrasonic pressure . 39
18 13 Protection against liberated gases and substances, explosion and implosion . 39
19 14 Components and subassemblies . 39
20 15 Protection by interlocks . 40
21 16 HAZARDS resulting from application . 40
22 17 RISK assessment . 40
23 101 Measuring circuits . 40
24 Annexes . 43
25 Annex D (normative) Parts between which insulation requirements are specified (see
26 6.4, 6.5.3 and 6.101) . 43
27 Annex F (normative) Routine tests . 45
28 Annex K (normative) Insulation requirements not covered by 6.7 . 46
29 Annex L (informative) Index of defined terms . 58
30 Annex AA (normative) MEASUREMENT CATEGORIES . 59
31 Annex BB (informative) HAZARDS pertaining to measurements performed in certain
32 environments . 62
33 Annex CC (informative) 4 mm "banana" TERMINALS . 65
34 Annex DD (informative) Flowchart for insulation according to the type of circuit . 67
35 Annex EE (informative) Determination of CLEARANCES for Table 101 . 70
36 Annex FF (normative) CLAMP MULTIMETER . 71
37 Bibliography . 73
39 Figure 101 – Examples of current sensors and their parts . 10
40 Figure 4 – Acceptable arrangement of protective means against electric shock . 18
41 Figure 102 – CLEARANCE between the PROTECTIVE FINGERGUARD to the JAWS and to the
42 HAZARDOUS LIVE conductor . 23
43 Figure 103 – Abrasion test of the JAW ENDS . 26
44 Figure 104 – Impact points for JAW impact test . 27

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45 Figure 105 – Indentation device . 28
46 Figure 106 – Example of a current sensor with strain reliefs. 30
47 Figure 107 – Flexing test . 31
48 Figure 108 – Test probe to check protection against short-circuits . 37
49 Figure 109 - Use of the test probe of Figure 108 . 37
50 Figure D.101 – Parts of current sensors (see also Table D.101) . 43
51 Figure K.101 – CLEARANCES between the conductor, the input/output circuit and the
52 enclosure of a Type A current sensor . 50
53 Figure K.102 – Test circuit for evaluation of TRANSIENT OVERVOLTAGE attenuation . 52
54 Figure AA.1 – Example to identify the locations of MEASUREMENT CATEGORIES . 60
55 Figure CC.1 – Recommended dimensions of 4 mm TERMINALS . 66
56 Figure DD.1 – Requirements for CLEARANCE, CREEPAGE DISTANCE and solid insulation . 69
57 Figure FF.1 – Examples of CLAMP MULTIMETERS . 71
59 Table 1 – Symbols . 14
60 Table 101 – CLEARANCES for unmated measuring circuit TERMINALS . 19
61 Table 102 – Energy level for JAW impact test . 26
62 Table 103 – Pull forces for endcaps of flexible current sensors . 29
63 Table 104 – Pull forces for input/output lead attachment test . 32
64 Table 105 – Thickness of the test probe of Figure 108 and test voltages . 38
65 Table D.101 – Insulation requirements for current sensors . 44
66 Table K.15 – CLEARANCE values for the calculation of K.3.2 . 47
67 Table K.16 – Test voltages based on CLEARANCES . 48
68 Table K.101 - Impulse voltages for circuits connected to MAINS . 52
69 Table K.102 - CLEARANCES for measuring circuits RATED for MEASUREMENT CATEGORIES . 53
70 Table K.103 – Impulse test voltages for testing electric strength of solid insulation for
71 measuring circuits RATED for MEASUREMENT CATEGORIES . 54
72 Table K.104 – a.c. test voltages for testing electric strength of solid insulation for
73 measuring circuits RATED for MEASUREMENT CATEGORIES . 55
74 Table K.105 – Minimum values for distance or thickness of solid insulation for
75 measuring circuits RATED for MEASUREMENT CATEGORIES . 56
76 Table AA.1 – Characteristics of MEASUREMENT CATEGORIES . 61
77 Table EE.1 – CLEARANCES values for Table 101 . 70
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79 INTERNATIONAL ELECTROTECHNICAL COMMISSION
80 ____________
82 SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT
83 FOR MEASUREMENT, CONTROL, AND LABORATORY USE –
85 Part 2-032: Particular requirements for hand-held and
86 hand-manipulated current sensors for electrical test and measurement
88 FOREWORD
89 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
90 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
91 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
92 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
93 Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their
94 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
95 may participate in this preparatory work. International, governmental and non-governmental organizations liaising
96 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
97 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
98 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
99 consensus of opinion on the relevant subjects since each technical committee has representation from all
100 interested IEC National Committees.
101 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
102 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
103 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
104 misinterpretation by any end user.
105 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
106 transparently to the maximum extent possible in their national and regional publications. Any divergence between
107 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
108 5) IEC itself does not provide any attestation of conformity. Independent certificati on bodies provide conformity
109 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
110 services carried out by independent certification bodies.
111 6) All users should ensure that they have the latest edition of this publication.
112 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
113 members of its technical committees and IEC National Committees for any personal injury, property damage or
114 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
115 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
116 Publications.
117 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
118 indispensable for the correct application of this publication.
119 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
120 rights. IEC shall not be held responsible for identifying any or all such patent rights.
121 IEC 61010-2-032 has been prepared by IEC technical committee 66: Safety of measuring,
122 control and laboratory equipment.
123 It has the status of a group safety publication in accordance with IEC Guide 104.
124 This fifth edition cancels and replaces the fourth edition published in 2019. This edition
125 constitutes a technical revision.

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126 This edition includes the following significant technical changes with respect to the previous
127 edition:
Clause 2 All normative references have been dated and new normative references have been added.
3.2.103 A new definition PROTECTIVE FINGERGUARD has been added to replace PROTECTIVE BARRIER
4.4.2.101 Addition of a new subclause about surge protective devices.
5.1.5.101.2 Minimum RATINGS for voltage of measuring TERMINALS are required.
6.5.1 The subclause has been modified
6.5.5 The subclause is no more used
6.6.101.1 Insulating material of group I may be allowed for determination of CLEARANCES of measuring
circuit TERMINALS.
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.
6.6.101.3 Requirements for measuring circuit TERMINALS in partially mated position have been specified.
6.6.101.4 Requirements for measuring circuit TERMINALS in mated position have been specified.
6.6.102 This subclause replaces 6.6.101
6.101 This subclause replaces 6.9.101 of previous edition and has been modified.
6.102 The subclause replaces 6.9.102 of previous edition and has been modified.
8.101 JAW ENDS abrasion test has been modified.
8.105 A new subclause for input/output leads attachment has been added
9.101.2 Relocation of 101.3 of previous edition.
9.101.3 Relocation of 101.4 of previous edition, extension to MEASUREMENT CATEGORY II and reference
to IEC 61000-4-5 for tests. Table 102 has been replaced by Table K.101.
9.102 Relocation of 102 of previous edition.
14.101 Relocation of 14.102. 14.101 of previous edition has been deleted.
101.3 New subclause for protections against HAZARD occurring from reading a voltage value in
replacement of EE.5 of previous edition.
Table D.101 Transients are disregarded for insulation between JAW ENDS and input/output circuits.
F.101 Tests voltage for routine test of JAWS have been modified.
K.2.1 Another method for determination of CLEARANCES of secondary circuits is proposed.
K.3.2 New Table K.15 and Table K.16 for CLEARANCE calculation.
K.3.101 New clause
Clause K.4 Redraft of the clause to propose a method for determination of U for circuits which reduce
t
TRANSIENT OVERVOLTAGES.
Table K.101 replaces Table K.106.
K.101.4 The subclause has been reviewed. Tables and tests for solid insulation have been modified.
Table K.104 of previous edition has been deleted.
Annex AA Figure AA.1 has been redesigned.
Annex EE Addition of a new informative annex for determination of CLEARANCES for Table 101.
Annex FF This Annex was Annex EE of previous edition.
The current sensor type of a CLAMP MULTIMETER is type A or type B.
129 The text of this International Standard is based on the following documents:
FDIS Report on voting
66/xxx/FDIS 66/xxx/RVD
131 Full information on the voting for the approval of this International Standard can be found in the
132 report on voting indicated in the above table.

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133 This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
134 A list of all parts of the IEC 61010 series, under the general title Safety requirements for
135 electrical equipment for measurement, control, and laboratory use, can be found on the IEC
136 website.
137 The language used for the development of this International Standard is English.
138 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
139 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
140 at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
141 described in greater detail at www.iec.ch/publications.
142 A list of all parts of the IEC 61010 series, under the general title Safety requirements for
143 electrical equipment for measurement, control, and laboratory use, can be found on the IEC
144 website.
145 This Part 2-032 is to be used in conjunction with IEC 61010-1:2010 and
146 IEC 61010-1:2010/AMD1:2016. It was established on the basis of the third edition (2010) of
147 IEC 61010-1, including its amendment 1 (2016) and its corrigendum 1 (2019), hereinafter
148 referred to as Part 1.
149 This Part 2-032 supplements or modifies the corresponding clauses in IEC 61010-1 so as to
150 convert that publication into the IEC standard: Particular requirements for hand-held and hand-
151 manipulated current sensors for electrical test and measurement.
152 Where a particular subclause of Part 1 is not mentioned in this Part 2-032, that subclause
153 applies as far as is reasonable. Where this part states “addition”, “modification”, “replacement”,
154 or “deletion” the relevant requirement, test specification or note in Part 1 should be adapted
155 accordingly.
156 In this standard:
157 a) the following print types are used:
158 – requirements: in roman type;
159 – NOTES: in small roman type;
160 – conformity and tests: in italic type;
161 – terms used throughout this standard which have been defined in Clause 3: SMALL ROMAN
162 CAPITALS;
163 b) subclauses, figures, tables and notes which are additional to those in Part 1 are numbered
164 starting from 101. Additional annexes are lettered starting from AA and additional list items
165 are lettered from aa).
166 The committee has decided that the contents of this document will remain unchanged until the
167 stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
168 the specific document. At this date, the document will be
169 • reconfirmed,
170 • withdrawn,
171 • replaced by a revised edition, or
172 • amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.
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174 INTRODUCTION
175 IEC 61010-1 specifies the safety requirements that are generally applicable to all equipment
176 within its scope. For certain types of equipment, the requirements of IEC 61010-1 and its
177 amendment will be supplemented or modified by the special requirements of one, or more than
178 one, particular Part 2 which are read in conjunction with the Part 1 requirements.
179 1) Part 2-030 specifies the safety requirements for equipment with testing or measuring
180 circuits which are connected for test or measurement purposes to devices or circuits outside
181 the measurement equipment itself.
182 2) Part 2-032 specifies the safety requirements for hand-held and hand-manipulated current
183 sensors for measuring, detecting or injecting current, or indicating current waveforms on
184 circuits without physically opening the current path of the circuit being measured.
185 Most of the requirements of Part 2-030 have been included into Part 2-032. Equipment
186 within the scopes of both Part 2-030 and Part 2-032 are considered to be covered by the
187 requirements of Part 2-032.
188 However, for current sensor in combined equipment with protective bonding and automatic
189 disconnection of the supply, Part 2-030 and Part 2-032 are read in conjunction
190 3) Part 2-033 specifies the safety requirements for hand-held multimeters and other meters for
191 domestic and professional use, capable of measuring mains voltage, intended to measure
192 voltage and other electrical quantities such as resistance or current.
193 All relevant requirements of Part 2-030 have been included into Part 2-033.
194 4) Part 2-034 specifies the safety requirements for measurement equipment for insulation
195 resistance and test equipment for electric strength which are connected to units, lines or
196 circuits for test or measurement purposes.
197 All relevant requirements of Part 2-030 have been included into Part 2-034. However, for
198 equipment within the scope of Part 2-032 and Part 034, these standards are read in
199 conjunction.
200 IEC 61010-031 specifies the safety requirements for hand-held and hand-manipulated probe
201 assemblies and their related accessories intended to be used in particular with equipment in
202 the scope of Part 2-030, Part 2-032, Part 2-033 and Part 2-034. These probe assemblies are
203 for non-contact or direct electrical connection between a part and electrical test and
204 measurement equipment. They may be fixed to the equipment or be detachable accessories for
205 the equipment.
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207 SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT
208 FOR MEASUREMENT, CONTROL, AND LABORATORY USE –
210 Part 2-032: Particular requirements for hand-held and
211 hand-manipulated current sensors for electrical test and measurement
215 1 Scope and object
216 IEC 61010-1:2010, Clause 1 and IEC 61010-1:2010/AMD1:2016, Clause 1 apply except as
217 follows:
218 1.1.1 Equipment included in scope
219 Replace the existing text with the following:
220 This group safety publication is primarily intended to be used as a product safety standard for
221 the products mentioned in the scope, but shall also be used by technical committees in the
222 preparation of their publications for products similar to those mentioned in the scope of this
223 document, in accordance with the principles laid down in IEC Guide 104 and lSO/lEC Guide 51.
224 This part of IEC 61010 specifies safety requirements for HAND-HELD and hand-manipulated
225 current sensors described below.
226 These current sensors are for measuring, detecting or injecting current, or indicating current
227 waveforms on circuits without physically opening the current path of the circuit being measured.
228 They can be stand-alone current sensors or accessories to other equipment or parts of
229 combined equipment (see Figure 101). These include measurement circuits which are part of
230 electrical test and measurement equipment, laboratory equipment, or process control
231 equipment. These current sensors and circuits need additional protective means between the
232 current sensor, the circuit and an OPERATOR.
233 NOTE 1 Combined equipment is equipment that is electrically connected to a current sensor by means of a
234 permanent connection which can be detached only by the use of a TOOL.
235 NOTE 2 Some current sensors are also known as current clamps, CLAMP MULTIMETERS and current probes.
236 Current sensors are hand-manipulated before and/or after a test or measurement, but do not
237 necessarily need to be HAND-HELD during the test or measurement. Current sensors used as
238 FIXED EQUIPMENT are not within the scope of this document.
239 The following types of current sensors are covered:
240 a) Type A: a current sensor designed to be applied to or removed from HAZARDOUS LIVE
241 UNINSULATED CONDUCTORS. Type A current sensors have defined HAND-HELD or hand-
242 manipulated parts providing protection against electric shock from the conductor being
243 measured, and also have protection against short-circuits between wires and between
244 busbars during clamping.
245 b) Type B: a current sensor which has protection against short-circuits between wires or
246 busbars during clamping but without defined HAND-HELD or hand-manipulated parts which
247 provide protection against electric shock during clamping. Additional protective means are
248 necessary to avoid electric shock from HAZARDOUS LIVE conductors which cannot be de-
249 energised during application or removal of the current sensor.
250 EXAMPLE 1 Flexible current sensors.
251 c) Type C: a current sensor without protection against short-circuits between wires or busbars
252 during clamping. Type C current sensors are intended to be applied to or removed from

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253 HAZARDOUS LIVE UNINSULATED CONDUCTORS or from non-limited-energy circuit conductors
254 only when they are de-energised.
255 EXAMPLE 2 Split-core transducers.
256 d) Type D: a current sensor designed to be applied to or removed from insulated conductors
257 or from limited-energy circuit conductors.
258 EXAMPLE 3 Current probes for oscilloscopes and earth leakage current detectors.
259 Type A, Type B and Type C current sensors can also be applied to or removed from insulated
260 conductors. In this case, HAZARDS are limited to acceptable levels by the insulation of the
261 conductors.
262 Additional requirements for CLAMP MULTIMETERS are given in Annex FF.
263 Figure 101 shows graphical representations of typical current sensors for illustration purposes.
264 Current sensors can look different depending on the design.

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Type A - Current sensor as an accessory Type A - Current sensor with self-contained and/or
additional measuring functions

Type A - Current sensor with fork-style JAWS Type B - Flexible current sensor
part of a piece of combined equipment

Type C - Split-core current sensor Type D - Current sensor for non-HAZARDOUS LIVE
applications (shown with a sliding JAW)
266 Key
267 1 JAW END(S)
268 2 JAW
269 3 measuring circuit TERMINALS
270 Figure 101 – Examples of current sensors and their parts
271 1.2.1 Aspects included in scope
272 Replace item c) of the second paragraph with the following new item:
273 c) spread of fire or arc flash from the current sensor (see Clause 9);
274 Replace the third paragraph with the following two new paragraphs:
275 Requirements for protection against HAZARDS arising from NORMAL USE, REASONABLY
276 FORESEEABLE MISUSE and ergonomic factors are specified in Clause 16, Clause 101 and
277 Annex FF.
278 Annex BB provides guidance to equipment manufacturer on HAZARDS that should be considered
279 for equipment intended for performing tests and measurements on hazardous conductors,
280 including MAINS conductors and telecommunication network conductors.

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281 2 Normative references
282 IEC 61010-1:2010, Clause 2 and IEC 61010-1:2010/AMD1:2016, Clause 2 apply except as
283 follows:
284 Replace the following existing normative references:
285 IEC 60068-2-75, Environmental testing - Part 2-75: Tests - Test Eh: Hammer tests
286 IEC 60364-4-44:2007, Low-voltage electrical installations – Part 4-44: Protection for safety –
287 Protection against voltage disturbances and electromagnetic disturbances
288 IEC 60364-4-44:2007/AMD1:2015
289 IEC 61010-031, Safety requirements for electrical equipment for measurement, control and
290 laboratory use – Part 031: Safety requirements for hand-held probe assemblies for electrical
291 measurement and test
292 IEC 61180 (all parts), High-voltage test techniques for low-voltage equipment
293 IEC 61180-1, High-voltage test techniques for low-voltage equipment – Part 1: Definitions, test
294 and procedure requirements
295 IEC 61180-2, High-voltage test techniques for low-voltage equipment – Part 2: Test equipment
296 IEC 62262, Degrees of protection provided by enclosures for electrical equipment against
297 external mechanical impacts (IK code)
298 with the following new normative references:
299 IEC 60068-2-75:2014, Environmental testing - Part 2-75: Tests - Test Eh: Hammer tests
300 IEC 60364-4-44:2007, Low-voltage electrical installations – Part 4-44: Protection for safety –
301 Protection against voltage disturbances and electromagnetic disturbances
302 IEC 60364-4-44:2007/AMD1:2015
303 IEC 60364-4-44:2007/AMD2:2018
304 IEC 61010-031: — , Safety requirements for electrical equipment for measurement, control and
305 laboratory use – Part 031: Safety requirements for hand-held and hand-manipulated probe
306 assemblies for electrical test and measurement
307 IEC 61180:2016, High-voltage test techniques for low-voltage equipment – Definitions, test and
308 procedure requirements, test equipment
309 NOTE IEC 61180:2016 replaces everywhere IEC 61180, IEC 61180-1 and IEC 61180-2 are referenced in Part 1.
310 IEC 62262:2002, Degrees of protection provided by enclosures for electrical equipment
311 against external mechanical impacts (IK code)
312 IEC 62262:2002/AMD1:2021
313 Add the following new normative references:
314 IEC 60695-10-2:2014, Fire hazard testing - Part 10-2: Abnormal heat - Ball pressure test
315 method
———————
Third edition under preparation. Stage at the time of publication: IEC FDIS 61010-031:2022.

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316 IEC 61000-4-5:2014, Electromagnetic compatibility (EMC) - Part 4-5: Testing and
317 measurement techniques - Surge immunity test
318 IEC 61000-4-5:2014/AMD1:2017
319 3 Terms and definitions
320 IEC 61010-1:2010, Clause 3 and IEC 61010-1:2010/AMD1:2016, Clause 3 apply except as
321 follows:
322 3.1 Equipment and states of equipment
323 Add the following two new terms and definitions:
324 3.1.101
325 HAND-HELD
326 intended to be supported by one hand during NORMAL USE
327 3.1.102
328 CLAMP MULTIMETER
329 HAND-HELD multi-range and multifunction measuring instrument intended to measure current on
330 a live MAINS without physically opening the conductors, voltage on a live MAINS and other
331 electrical quantities such as resistance
332 3.2 Parts and accessories
333 Add the following two new terms and definitions:
334 3.2.101
335 JAW
336 part of a current sensor which surrounds or partially surrounds the conductor under test
337 3.2.102
338 JAW END
339 part of the JAW where opening occurs while clamping around a conductor
340 3.2.103
341 PROTECTIVE FINGERGUARD
342 part of the enclosure that indicates the limit of safe access and that reduces the risk of the
343 operator touching HAZARDOUS LIVE parts
344 3.5 Safety terms
345 Replace the definition of 3.5.4 with the following new definition:
346 3.5.4
347 MAINS
348 electricity supply system
349 Add the following new term and definition:
350 3.5.101
351 MEASUREMENT CATEGORY
352 classification of testing and measuring circuits according to the type of MAINS to which they are
353 intended to be connected
354 Note 1 to entry: MEASUREMENT CATEGORIES take into account OVERVOLTAGE CATEGORIES, short-circuit current levels,
355 the location where the test or measurement is to be made and some forms of energy limitation or transient protection
356 included in the building installation (see Annex AA for more information).

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357 3.6 Insulation
358 Add the following new term and definition:
359 3.6.101
360 UNINSULATED CONDUCTOR
361 conductor not insulated by solid insulation or insulated by solid insulation which does not meet
362 the requirements for BASIC INSULATION for the relevant voltage to earth
363 4 Tests
364 IEC 61010-1:2010, Clause 4 and IEC 61010-1:2010/AMD1:2016, Clause 4 apply except as
365 follows:
366 4.3.2.5 MAINS supply
367 Replace the existing title and text of 4.3.2.5 with the following title and text:
368 4.3.2.5 Power supply
369 The following requirements apply:
370 a) the MAINS supply voltage shall be between 90 % and 110 % of any RATED supply voltage for
371 which the current sensor can be set or, if the current sensor is RATED for a greater
372 fluctuation, at any supply voltage within the fluctuation range;
373 b) the MAINS frequency shall be any RATED frequency;
374 c) current sensor for both a.c. and d.c. shall be connected to an a.c. or d.c. supply;
375 d) current sensor powered by single-phase a.c. MAINS supply shall be connected both with
376 normal and reverse polarity;
377 e) if the means of connection permit reversal, battery-operated and d.c. current sensor shall
378 be connected with both reverse and normal polarity.
379 4.3.2.6 Input and output voltages
380 Replace the existing title and text of 4.3.2.6 with the following title and text:
381 4.3.2.6 Input and output voltages or currents
382 Input and output voltages or currents, including floating voltages but excluding the MAINS supply
383 voltage, shall be set to any voltage or current within their RATED range, in normal and reverse
384 polarity if possible.
385 4.4.2.8 Outputs
386 Replace the text with the following:
387 Outputs shall be open-circuited and short-circuited, one at a time.
388 Add the following new subclause:
389 4.4.2.101 Surge protective devices
390 Surge protective devices used in MAINS CIRCUITS or the circuits measuring MAINS shall be short-
391 circuited and open-circuited.

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392 5 Marking, documentation and indicator
393 IEC 61010-1:2010, Clause 5 and IEC 61010-1:2010/AMD1:2016, Clause 5 apply except as
394 follows:
395 5.1.2 Identification
396 Add the following new items and a new paragraph after the Note to item b):
397 aa) for current sensors designed for use only with a specific model of equipment, a clear
398 identification of the equipment, or with symbol 14 of Table 1 if this information is available
399 only in the documentation;
400 bb) for Type A current sensors, with symbol 102 of Table 1;
401 cc) for Type B and Type C current sensors, with symbol 101 of Table 1;
402 dd) for Type D current sensors, with symbol 101 and symbol 14 of Table 1.
403 The relevant symbol (14, 101 or 102) shall be marked adjacent to the JAWS or to the marking of
404 the MEASUREMENT CATEGORY for the JAWS, if present (see 5.1.5.101 and 5.1.5.102).
405 Table 1 – Symbols
406 Add the following two new symbols:
Number Symbol Reference Description
Do not apply current sensor to or remove from
HAZARDOUS LIVE UNINSULATED CONDUCTORS, which
may render electric shock, electric burn, or arc
flash
Application of current sensor to and removal from
102 IEC 60417-6300 (2016-03) HAZARDOUS LIVE UNINSULATED CONDUCTORS is
permitted
408 5.1.5 TERMINALS, connections and operating devices
409 Add the following new subclause:
410 5.1.5.101 Measuring circuit TERMINALS
411 5.1.5.101.1 General
412 Some measuring circuit TERMINALS for the current sensor within the scope of this document also
413 serve as output TERMINALS.
414 Except as permitted in 5.1.5.101.4:
415 a) the value of the nominal a.c. r.m.s. line-to-neutral or d.c. voltage of MAINS being measured
416 shall be marked for measuring circuit TERMINALS RATED for MEASUREMENT CATEGORIES, or
417 the value of the RATED voltage to earth for other measuring circuit TERMINALS, and
418 NOTE CLEARANCES and solid insulation for MEASUREMENT CATEGORIES are specified for a nominal a.c. r.m.s.
419 line-to-neutral or d.c. voltage of MAINS being measured. Neutral is considered to be earthed (see Annex I).
420 b) the value of the RATED voltage or the RATED current, as applicable, of each pair or set of
421 measuring circuit TERMINALS that are intended to be used together shall be marked, and

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422 c) the pertinent MEASUREMENT CATEGORY for each individual, pair, or set of measuring circuit
423 TERMINALS, or symbol 14 of Table 1 shall be marked as specified in 5.1.5.101.2 and
424 5.1.5.101.3, if applicable.
425 Measuring circuit TERMINALS are usually arranged in pairs or sets. Each pair or set of TERMINALS
426 may have a RATED voltage or a RATED current, or both, within that set, and each individual
427 TERMINAL may have a RATED voltage to earth. For some current sensors, the RATED voltage
428 between TERMINALS may be different from the RATED voltage to earth. Markings shall be clear
429 to avoid misunderstanding.
430 Symbol 14 of Table 1 shall be marked if current measuring TERMINALS are not intended for
431 connection to current transformers without internal protection (see 101.2).
432 Markings shall be placed adjacent to the TERMINALS. However, if there is insufficient space (as
433 in multi-input current sensor), the marking may be on the RATING plate or scale plate, or the
434 TERMINAL may be marked with symbol 14 of Table 1.
435 For any set of measuring circuit TERMINALS, symbol 14 of Table 1 does not need to be marked
436 more than once, if it is close to the TERMINALS.
437 Conformity is checked by inspection and, if applicable, as specified in 5.1.5.101.2 and
438 5.1.5.101.3, taking the exceptions in 5.1.5.101.4 into account.
439 5.1.5.101.2 Measuring circuit TERMINALS RATED for MEASUREMENT CATEGORIES
440 The relevant MEASUREMENT CATEGORY shall be marked for TERMINALS of measuring circuits
441 RATED for MEASUREMENT CATEGORIES. The MEASUREMENT CATEGORY markings shall be "CAT II",
442 "CAT III" or "CAT IV" as applicable.
443 The RATED voltage of the TERMINALS of a measuring circuit intended for MAINS voltage
444 measurements shall be equal to or higher than their RATED a.c. r.m.s. line-to-neutral or d.c.
445 voltage.
446 Marking those TERMINALS with more than one type of MEASUREMENT CATEGORY and its RATED
447 voltage is permissible.
448 Conformity is checked by inspection.
449 5.1.5.101.3 Measuring circuit TERMINALS RATED for connection to voltages above the
450 levels of 6.3.1
451 Symbol 14 of Table 1 shall be marked for measuring circuit TERMINALS RATED for connection to
452 voltages above the levels of 6.3.1, but that are not RATED for MEASUREMENT CATEGORIES (see
453 also 5.4.1 bb).
454 Conformity is checked by inspection.
455 5.1.5.101.4 Measuring circuit TERMINALS which are permanently connected, dedicated or
456 for non-HAZARDOUS LIVE voltages
457 Measuring circuit TERMINALS do not need to be marked if:
458 a) they are intended to be permanently connected and not ACCESSIBLE (see 5.4.3 aa) and bb)),
459 or
460 b) they are dedicated only for connection to specific TERMINALS of other equipment, or
461 c) it is obvious from other indications that the RATED voltage does not exceed the levels of
462 6.3.1.
463 NOTE Examples of acceptable indications that the RATED voltage of the inputs are intended to not exceed the
464 levels of 6.3.1 include:
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465 – the full scale deflection marking of a single-range indicating voltmeter or ammeter or maximum marking of
466 a multi-range CLAMP MULTIMETER;
467 – the maximum range marking of a voltage selector switch;
468 – a marked voltage or power RATING expressed in dB, mW or W, where the equivalent value, as explained in
469 the documentation, does not exceed 30 V a.c.
470 Conformity is checked by inspection.
471 5.1.5.102 Voltage and current RATINGS of JAWS
472 Current sensors that are intended to be used on UNINSULATED CONDUCTORS shall be marked
473 with the value of the nominal a.c. r.m.s. line-to-neutral or d.c. voltage of MAINS being measured
474 when JAWS are RATED for MEASUREMENT CATEGORIES, otherwise with the value of the RATED
475 voltage to earth of the JAWS.
476 JAWS of Type A, Type B or Type C current sensors RATED for MEASUREMENT CATEGORIES, shall
477 be marked with the relevant MEASUREMENT CATEGORY adjacent to the a.c. r.m.s. line-to-neutral
478 or d.c. voltage marking (see also note of 5.1.5.101.2). The MEASUREMENT CATEGORY markings
479 shall be "CAT II", "CAT III" or "C
...