prEN IEC 61010-2-030:2026

Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-030: Particular requirements for equipment having testing or measuring circuits

Sicherheitsbestimmungen für elektrische Mess-, Steuer-, Regel- und Laborgeräte - Teil 2-030: Besondere Anforderungen für Geräte mit Prüf- oder Messstromkreis

Exigences de sécurité pour appareils électriques de mesurage, de régulation et de laboratoire - Partie 2-030: Exigences particulières pour les appareils équipés de circuits d'essai ou de mesure

Varnostne zahteve za električno opremo za meritve, nadzor in laboratorijsko uporabo - 2-030. del: Posebne zahteve za opremo, ki ima preskusna in merilna vezja

General Information

• Status: Not Published
• Publication Date: 04-Oct-2027
• ICS: 19.080 - Electrical and electronic testing
• ICS: 71.040.10 - Chemical laboratories. Laboratory equipment
• Technical Committee: CLC/TC 66X - Safety of measuring, control, and laboratory equipment
• Current Stage: 4020 - Enquiry circulated - Enquiry
• Start Date: 13-Mar-2026
• Completion Date: 13-Mar-2026
• Directive: Harmonized Standard2014/35/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: oSIST prEN IEC 61010-2-030:2026 - Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-030: Particular requirements for equipment having testing or measuring circuits

Relations

• Revises: FprEN IEC 61010-2-030:2023 - Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-030: Particular requirements for equipment having testing or measuring circuits
• Effective Date: 24-Jun-2025
• Revises: EN IEC 61010-2-030:2021/A11:2021 - Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-030: Particular requirements for equipment having testing or measuring circuits
• Effective Date: 03-Jun-2025
• Revises: EN IEC 61010-2-030:2021 - Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-030: Particular requirements for equipment having testing or measuring circuits
• Effective Date: 03-Jun-2025

Overview

prEN IEC 61010-2-030:2026 is a draft international standard published by CLC that defines particular safety requirements for electrical equipment used for measurement, control, and laboratory applications, specifically focusing on equipment with testing or measuring circuits. This standard is part of the broader IEC 61010 series, which establishes comprehensive safety criteria for various types of laboratory, control, and test equipment. The 2-030 part addresses additional safety concerns that arise when testing or measuring circuits in such equipment are directly connected to external devices or systems.

Key Topics

prEN IEC 61010-2-030:2026 supplements the general requirements of IEC 61010-1 with particular provisions for equipment having testing or measuring circuits. Key safety aspects covered include:

• Protection Against Electric Shock – Measures and requirements to prevent electric shock to users, especially when circuits connect to hazardous or high-energy sources.
• Marking and Documentation – Guidance on clear labeling of measuring circuit terminals, including rated voltage, current, and measurement category (e.g., CAT II, CAT III, CAT IV).
• Mechanical Hazards and Stress Resistance – Requirements that ensure the physical durability and security of terminals, connectors, and housing.
• Prevention of Fire and Arc Flash Spread – Design and material precautions to reduce the risk of fire or arc flash propagation originating from testing circuits.
• Protection Against Hazardous Substances and Radiation – Safeguards related to exposure from radiation, ultrasonic pressure, or dangerous substances during operation.
• Fault Conditions and Single Fault Testing – Tests and procedures to verify continued safety under defined fault scenarios such as failure of surge protection components.
• Measuring Circuit Definitions and Insulation Requirements – Clarification of terms, categories, and necessary insulation standards for measuring circuits.
• Clearances and Creepage Distances – Detailed requirements for spacing within equipment to prevent short circuits or arcing, vital for circuits interfaced with mains or high voltage.

Applications

prEN IEC 61010-2-030:2026 is crucial for industries that rely on test and measurement, laboratory experimentation, or process control where electrical safety is paramount. Typical applications include:

• Electrical Test Equipment: Voltage, current, and resistance meters, data loggers, oscilloscopes, and other diagnostic instruments that connect to external live circuits.
• Laboratory Equipment: Devices that measure physical properties like temperature, force, or chemical reactions, often interfacing with sensors or probes.
• Process Control Systems: Instruments used in industrial automation that monitor or control external processes via test or measuring circuits.
• Educational and Research Labs: Ensures equipment safety in environments where students, researchers, or operators interact with diverse electrical systems.

This standard provides manufacturers, operators, and safety assessors with defined criteria to ensure equipment is suitable for the intended test environments-especially critical when interfacing with mains installations or hazardous sources.

Related Standards

The IEC 61010 series forms a comprehensive suite for the safety of electrical measuring and laboratory equipment. Key related standards include:

• IEC 61010-1: Safety requirements – General foundation for all equipment in this family.
• IEC 61010-2-032: Requirements for hand-held and hand-manipulated current sensors.
• IEC 61010-2-033: Particular requirements for hand-held multimeters and testers.
• IEC 61010-2-034: Safety for measuring equipment that tests insulation resistance and related properties.
• IEC 61010-031: Safety for hand-held probe assemblies.
• IEC 61010-2-130: Safety requirements for equipment used by pupils in educational establishments.
• IEC 60364-4-44: Protection against voltage disturbances – Relevant for installations connecting to or being measured by such equipment.

Practical Value

Adherence to prEN IEC 61010-2-030:2026 helps:

• Ensure user and operator safety when testing or measuring external circuits, including mains.
• Facilitate market access for manufacturers by standardizing safety compliance across regions.
• Support conformity assessment and certification for lab, control, and testing equipment.
• Reduce risks of electric shock, fire, or equipment damage in real-world operation.

For any organization involved in the design, manufacture, certification, or operation of laboratory or test equipment, this standard is a critical resource for maintaining compliance, safety, and reliability.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2026
Varnostne zahteve za električno opremo za meritve, nadzor in laboratorijsko
uporabo - 2-030. del: Posebne zahteve za opremo, ki ima preskusna in merilna
vezja
Safety requirements for electrical equipment for measurement, control, and laboratory
use - Part 2-030: Particular requirements for equipment having testing or measuring
circuits
Sicherheitsbestimmungen für elektrische Mess-, Steuer-, Regel- und Laborgeräte - Teil 2
-030: Besondere Anforderungen für Geräte mit Prüf- oder Messstromkreis
Exigences de sécurité pour appareils électriques de mesurage, de régulation et de
laboratoire - Partie 2-030: Exigences particulières pour les appareils équipés de circuits
d'essai ou de mesure
Ta slovenski standard je istoveten z: prEN IEC 61010-2-030:2026
ICS:
19.080 Električno in elektronsko Electrical and electronic
preskušanje testing
71.040.10 Kemijski laboratoriji. Chemical laboratories.
Laboratorijska oprema Laboratory equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

66/878/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61010-2-030 ED4
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2026-03-13 2026-06-05
SUPERSEDES DOCUMENTS:
66/864/CD, 66/869/CC
IEC TC 66 : SAFETY OF MEASURING, CONTROL AND LABORATORY EQUIPMENT
SECRETARIAT: SECRETARY:
United Kingdom Ms Stephanie Lavy
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
TC 65,TC 85 TC 66 Horizontal Group Safety
ASPECTS CONCERNED:
Saf ety
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 d rawn to the f act that this Co mmittee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC memb ers are invited to vo te thro ug h the

CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recip ients o f this d o cument are invited to sub mit, with their co mments, no tification o f any relevant p atent rig hts o f which they
are aware and to provide supporting documentation.
Recip ients of this d ocument are invited to sub mit, with their co mments, no tification of any relevant “In So me Co untries” clauses
to b e includ ed sho uld this p ro posal p ro ceed . Recip ients are remind ed that the CD V stag e is the f inal stag e f or sub mitting ISC
clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-030:
Particular requirements for equipment having testing or measuring circuits

PROPOSED STABILITY DATE: 2031
NOTE FROM TC/SC OFFICERS:
Please note: We kindly ask NCs to submit their comments by 2026-05-29 as the WG has a planned meeting
on June 4th and 5th, 2026.
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 f ile or printed version of the document, or any part of it, f or any other purpose without
permission in writing from IEC.

IEC CDV 61010-2-030 © IEC 2026
1 CONTENTS
2 FOREWORD.3
3 INTRODUCTION .7
4 1 Scope and object .8
5 2 Normative references .9
6 3 Terms, definitions and abbreviated terms .9
7 4 Assessment, tests, and environmental conditions . 11
8 5 Marking and documentation. 12
9 6 Protection against electric shock . 15
10 7 Protection against mechanical HAZARDS . 22
11 8 Resistance to mechanical stresses . 22
12 9 Protection against the spread of fire and arc flash . 22
13 10 Equipment temperature limits and resistance to temperature . 29
14 11 Protection against HAZARDS from fluids and solid foreign objects. 29
15 12 Protection against injury from radiation, sonic and ultrasonic pressure. 29
16 13 Protection against hazardous substances, explosion and implosion. 29
17 14 Components and subassemblies . 29
18 15 Interlocks and safety-related controls . 30
19 16 Protection against HARM related to the use of the equipment . 30
20 17 Assessment of RISKS and situations not fully covered by Clauses 6 to 16 . 33
21 Annex K (normative) Insulation requirements not covered by 6.7. 34
22 Annex L (informative) Index of defined terms. 47
23 Annex AA (normative) MEASUREMENT CATEGORIES . 48
24 Annex BB (informative) MEASURING CIRCUITS . 51
25 Annex CC (informative) HAZARDS pertaining to measurements performed in certain
26 environments. 53
27 Annex DD (informative) 4 mm "banana" TERMINALS . 56
28 Annex EE (informative) Flowchart for insulation according to the type of MEASURING
29 CIRCUIT . 58
30 Annex FF (informative) Determination of CLEARANCES for Table 102 . 61
31 Annex GG (informative) Effects of capacitors and inductors discharge current . 62
32 Bibliography . 66

33 Figure K.101 – Test circuit for evaluation of TRANSIENT OVERVOLTAGE attenuation . 43
34 Figure AA.1 – Example to identify the locations of MEASUREMENT CATEGORIES . 51
35 Figure DD.1 – Recommended dimensions of 4 mm TERMINALS . 59
36 Figure EE.1 – Requirements for CLEARANCE, CREEPAGE DISTANCE and solid insulation. 62
37 Figure GG.1 – Forms of current for inductor and capacitor discharges . 65
38 Figure GG.2 – Threshold of ventricular fibrillation . 66

39 Table 0.1 – IEC 61010 standards to be applied in case of combined equipment .8
40 Table 101 – Abbreviated terms . 12
41 Table 102 –CLEARANCES for unmated MEASURING CIRCUIT TERMINALS . 19
IEC CDV 61010-2-030 © IEC 2026
42 Table 27 – Bridging insulation by IEC 60384-14 subclass Y capacitors. 32
43 Table K.15 – CLEARANCE values for the calculation of K.3.2 . 38
44 Table K.16 – Test voltages based on CLEARANCES . 39
45 Table K.101 – Impulse voltages for circuits connected to MAINS . 42
46 Table K.102 – CLEARANCES for MEASURING CIRCUITS . 44
47 Table K.103 – Impulse test voltages for solid insulation in MEASURING CIRCUITS . 45
48 Table K.104 – AC test voltages for solid insulation in MEASURING CIRCUITS . 46
49 Table K.105 – Minimum values for distance or thickness of solid insulation in
50 MEASURING CIRCUITS . 47
51 Table AA.1 – Characteristics of MEASUREMENT CATEGORIES . 52
52 Table FF.1 – CLEARANCE values for Table 102 . 63
53 Table GG.1 - Effects of inductor discharge shock . 67
54 Table GG.2 - Effects of capacitor discharge shock . 67

IEC CDV 61010-2-030 © IEC 2026
55 INTERNATIONAL ELECTROTECHNICAL COMMISSION
56 ____________
57 SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT
58 FOR MEASUREMENT, CONTROL, AND LABORATORY USE –

59 Part 2-030: Particular requirements for equipment
60 having testing or measuring circuits

61 FOREWORD
62 1) The Internatio nal Electro technical Co mmission (IEC) is a wo rld wid e o rg anization f or stand ardization co mprising
63 all natio nal electro technical committees (IEC Natio nal Co mmittees). The o b ject of IEC is to p ro mote international
64 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
65 in ad d ition to o ther activities, IEC p ub lishes International Standards, Technical Specifications, Technical Reports,
66 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
67 p rep aratio n is entrusted to technical committees; any IEC Natio nal Co mmittee interested in the sub ject d ealt with
68 may p articipate in this prep aratory wo rk. International, g overnmental and no n-governmental o rganizations liaising
69 with the IEC also p articip ate in this p rep aratio n. IEC co llab orates clo sely with the Internatio nal Org anization for
70 Stand ard izatio n (ISO) in acco rd ance with co nd itio ns d etermined b y ag reement b etween the two o rg anizatio ns.
71 2) The f o rmal d ecisions o r ag reements o f IEC o n technical matters exp ress, as nearly as p o ssible, an international
72 consensus of opinion on the relevant subjects since each technical committee has representation from all
73 interested IEC National Committees.
74 3) IEC Publications have the f orm of recommendations f or international use and are accepted by IEC National
75 Committees in that sense. While all reasonable ef forts are made to ensure that the technical content of IEC
76 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
77 misinterpretation by any end user.
78 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
79 transp arently to the maximum extent p ossible in their national and reg ional pub lications. Any d iverg ence b etween
80 any IEC Pub lication and the co rrespo nding national o r reg ional p ublication shall b e clearly ind icated in the latter.
81 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
82 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible f or any
83 services carried out by independent certification bodies.
84 6) All users should ensure that they have the latest edition of this publication.
85 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
86 memb ers o f its technical co mmittees and IEC Natio nal Co mmittees f or any p erso nal injury, p ro p erty d amage or
87 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
88 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
89 Publications.
90 8) Attention is drawn to the Normative ref erences cited in this publication. Use of the ref erenced publications is
91 indispensable for the correct application of this publication.
92 9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
93 p atent(s). IEC takes no p o sition co ncerning the evid ence, validity o r ap p licability o f any claimed p atent rig hts in
94 resp ect thereof. As o f the d ate of p ublication o f this d ocument, IEC had no t received notice of (a) p atent(s), which
95 may b e req uired to imp lement this d o cument. Ho wever, imp lementers are cautio ned that this may no t rep resent
96 the latest inf ormation, which may be obtained from the patent database available at https://patents.iec.ch. IEC
97 shall not be held responsible for identifying any or all such patent rights.
98 IEC 61010-2-030 has been prepared by IEC technical committee 66: Safety of measuring,
99 control and laboratory equipment. It is an International Standard.
100 It has the status of a group safety publication in accordance with IEC Guide 104.
101 This fourth edition cancels and replaces the third edition published in 2023. This edition
102 constitutes a technical revision.
103 This edition includes the following significant technical changes with respect to the previous
104 edition:
105 a) Introduction has been reorganized;
IEC CDV 61010-2-030 © IEC 2026
106 b) IEC 61010-2-130 is used in conjunction with this document for equipment in both scopes;
107 c) impact of amendment 2 to IEC 61010-1:2010+A1/2016 has been taken into consideration:
108 1) Clause 2 and Bibliography have been updated;
109 2) MAINS definition has been modified
110 3) in 4.3.2.5, specific requirements for power supply have been deleted since Amendment
111 2 of IEC 61010-1 take them now into account;
112 4) Figure 101 has been replaced by Figure 3;
113 5) modifications of 6.8.3.1 and 6.8.3.2 have been deleted since Amendment 2 of IEC 61010
114 1 take them now into account;
115 6) conformity statements of K.3.2 and K.101.2 have been modified;
116 7) a few conformity statements for constructional requirements of solid insulation have
117 been modified;
118 d) definition of MEASUREMENT CATEGORY has been modified, added a definition for MEASURING
119 and HIGH INTEGRITY component (see also 14.102);
CIRCUITS
120 e) added a new 3.101 for abbreviated terms and a Table 101;
121 f) in 4.4.2.101, requirements for surge protective components have been modified;
122 g) in 5.1.5.101.2, markings of TERMINALS for MEASUREMENT CATEGORIES have been completed,
123 including the nature of the voltage AC or DC only which is now explicitly permissible;
124 h) requirements for markings of HAZARD OUS LIVE output TERMINALS have been added to a new
125 5.1.5.101.4 and the previous 5.1.5.101.4 has been renumbered 5.1.5.101.5; RATINGS for the
126 output voltage have been added in 5.4.2;
127 i) new requirements for equipment operation in 5.4.4;
128 j) exception of 6.1.2 has been better framed;
129 k) 6.5.2.101 has been deleted;
130 l) 6.5.5 has been modified to take into account the automatic disconnection of HAZARD OUS LIVE
131 voltage source;
132 m) 6.5.6 has been modified to take into account voltage-limiting devices used in MEASURING
133 CIRCUITS;
134 n) in 6.6.101.1, a new requirement for TERMINALS is added;
135 o) in 6.6.101.2, the conformity statement has been modified;
136 p) in 6.6.101.5, the conformity statement has been modified;
137 q) a new 6.101 for protection ag ainst hazardous live outputs, including unintentional energising
138 of the outputs and requirement for HAZARD indicator;
139 r) subclause 9.1 has been modified;
140 s) 9.101.1 and 9.101.2.1 have been redrafted for clarification, in particular to take into account
141 the recommendations of new Annex N about REASONABLY FORESEEABLE MISUSE; an exception
142 has been added for MEASURING CIRCUIT not RATED for MEASUREMENT CATEGORIES III or IV;
143 a) requirements for SPD have been added to 14.8;
144 b) requirements for capacitors have been added to 14.9;
145 c) requirements for HIGH INTEGRITY components have been added in a new 14.102;
146 d) Clause 101 has been deleted and replaced by a new Annex BB:
147 1) 101.2 has been moved to 9.101.4 as this subclause is relevant for prevention of spread
148 of fire;
149 2) protection of current MEASURING CIRCUITS has been completed in 9.101.4.1;
150 3) 101.3 has been moved to 16.4 and 16.101;
151 e) a new 16.102 for hazardous energy stored in the devices under tests has been added;
152 f) installation limit of CAT IV has been modified in Figure AA.1;
IEC CDV 61010-2-030 © IEC 2026
153 g) a new Annex BB for MEASURING CIRCUIT has been added.
154 Other annexes have been renumbered;
155 h) a new informative Annex GG describing the effects of capacitors and inductors discharge
156 current has been added.
157 The text of this International Standard is based on the following documents:
Draf t Report on voting
66/xxx/FDIS 66/xxx/RVD
158 Full information on the voting for its approval can be found in the report on voting indicated in
159 the above table.
160 The language used for the development of this International Standard is English.
161 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
162 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
163 at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
164 described in greater detail at www.iec.ch/publications.
165 A list of all parts of the IEC 61010 series, under the general title Safety requirements for
166 electrical equipment for measurement, control, and laboratory use, can be found on the IEC
167 website.
168 This document is to be used in conjunction with IEC 61010-1:2010,
169 IEC 61010-1:2010/AMD1:2016 and IEC 61010-1:2010/AMD2:— .
170 This document supplements or modifies the corresponding clauses in IEC 61010-1 so as to
171 convert that publication into the IEC standard: Particular requirements for equipment having
172 testing or measuring circuits.
173 Where a particular subclause of IEC 61010-1 is not mentioned in this document, that subclause
174 applies as far as is reasonable. Where this document states "addition", "modification",
175 "replacement", or "deletion", the relevant requirement, test specification or note in IEC 61010-1
176 should be adapted accordingly.
177 In this standard:
178 • the following print types are used:
179 – requirements: in roman type;
180 – NOTES: in small roman type;
181 – conformity and tests: in italic type;
182 – terms used throughout this standard which have been defined in Clause 3: SMALL ROMAN
183 CAPITALS;
184 • subclauses, figures, tables and notes which are additional to those in IEC 61010-1 are
185 numbered starting from 101. Additional annexes are lettered starting from AA and additional
186 list items are lettered from aa).
___________
Second amendment under preparation. Stage at the time of publication: IEC FDIS 61010-1/AMD2:2026.
IEC CDV 61010-2-030 © IEC 2026
The committee has decided that the contents of this document will remain unchanged until the
188 stability date indicated on the IEC website under webstore.iec.ch in the data related to the
189 specific document. At this date, the document will be
190 • reconfirmed,
191 • withdrawn,
192 • replaced by a revised edition, or
193 • amended.
IMPORTANT – The "colour inside" logo on the cover page of this document 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.

IEC CDV 61010-2-030 © IEC 2026
195 INTRODUCTION
196 IEC 61010-1 specifies the safety requirements that are generally applicable to all equipment
197 within its scope. For certain types of equipment, the requirements of IEC 61010-1 and its
198 amendments will be supplemented or modified by the special requirements of one or more
199 standard from the IEC 61010-2 series which is/are read in conjunction with the requirements of
200 IEC 61010-1.
201 T his document and IEC 61010-2-032, IEC 61010-2-033 and IEC 61010-2-034 specify the safety
202 requirements for equipment having testing or measuring circuits which are connected for test
203 or measurement purposes to devices or circuits outside the measurement equipment itself.
204 According to the type of equipment and combination of functions, several IEC 61010 standards
205 are used in conjunction (see Table 0.1).
206 Table 0.1 – IEC 61010 standards to be applied in case of combined equipment
Additional standards to be applied in case of combined equipment
with additional features or equipment designed for specific use
Type of Applicable
Equipment
Insulation
equipment IEC 61010
Other Hand-held used in
Hand-held
resistance
(example) standards
Multimeter measuring and hand- educational
current test or
and test manipulated establishment
function
measurement
sensing
by pupil
functions probe
function
OPERATORS
Hand-held
Other
and hand- Function Part 2-033 Part 2-034 is
Part 1 + f unctions
manipulated included in is used in
are
Part 2-032
current
the scope included conjunction
included
sensors
Hand-held
multimeters
and other Function Part 2-034 is
Part 1 + Part 2-032
meters for includ ed in used in
It depends
Part 2-033 supersedes
measuring the scope conjunction
mains
Part 031
Part 2-130 is
voltage
applies to
used in
relevant
conjunction
Insulation
accessories
resistance Other
Part 2-032 Function
and test Part 1 + f unctions
is used in Not apply included in
equipment Part 2-034 are
conjunction the scope
for electric included
strength
Other
equipment
Part 2-032 Functions
having Part 1 + Part 2-034
is used in includ ed in
It depends
testing or
Part 2-030 supersedes
conjunction the scope
measuring
circuits
IEC CDV 61010-2-030 © IEC 2026
207 SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT
208 FOR MEASUREMENT, CONTROL, AND LABORATORY USE –

209 Part 2-030: Particular requirements for equipment
210 having testing or measuring circuits

211 All Clauses and their subclauses, all Annexes, their Clauses and subclauses, and Bibliography
212 of IEC 61010-1:2010, IEC 61010-1:2010/AMD1:2016 and IEC 61010-1:2010/AMD2:— apply
213 except as follows.
1 Scope and object
1.1 Scope
214 1.1.1 Equipment included in scope
215 Replace the existing text of 1.1.1 with the following new text:
216 This part of IEC 61010 specifies safety requirements for eq uipment having testing or measuring
217 circuits which are connected for test or measurement purposes to devices or circuits outside
218 the measurement equipment itself.
219 These include testing or measuring circuits which are part of electrical test and measurement
220 equipment, laboratory equipment, or process control equipment. These circuits in equipment
221 have additional protective means between the circuit and an OPERATOR.
222 NOTE These testing and measuring circuits can, for example:
223 – measure voltages in circuits of other equipment;
224 – measure temperature of a separate device via a thermocouple;
225 – measure force on a separate device via a strain gauge;
226 – inject a voltage or current onto a circuit to analyse or test a new design.
227 This group safety publication focusing on safety essential requirements is primarily intended to
228 be used as a product safety standard for the products mentioned in the scope, but is also
229 intended to be used by technical committees in the preparation of publications for products
230 similar to those mentioned in the scope of this document, in accordance with the principles laid
231 down in IEC Guide 104 and lSO/lEC Guide 51.
232 One of the responsibilities of a technical committee is, wherever applicable, to make use of
233 basic safety publications and/or group safety publications in the preparation of its publications.
1.2 Aspects
1.2.1 Aspects included in scope
235 Replace item c) and item h) from the list of the second paragraph of 1.2.1 with the following
236 new item c) and item h):
237 c) spread of fire or arc flash from the equipment (see Clause 9);
238 h) HAZARDS related to the use and REASONABLY FORESEEABLE MISUSE of the equipment
239 (see Clause 16 and Annex BB).
___________
Second amendment under preparation. Stage at the time of publication: IEC FDIS 61010-1/AMD2:2026.
IEC CDV 61010-2-030 © IEC 2026

Insert the following new paragraph between the third paragraph and the NOTE of 1.2.1:
241 Annex BB and Annex CC provide g uidance to eq uipment manufacturers on HAZARDS that should
242 be considered for equipment intended for performing tests and measurements on hazardous
243 conductors, including MAINS conductors and telecommunication network conductors.

244 1.2.2 Aspects excluded from scope
245 Add a new item aa) after item h) of the list of 1.2.2:
246 aa) HAZARDS related to the use by pupil OPERATORS in educational establishments (see
247 IEC 61010-2-130).
2 Normative references
248 2 Normative references
249 Insert the following five new normative references in Clause 2:
250 IEC 60364-4-44:2024, Low-voltage electrical installations – Part 4-44: Protection for safety –
251 Protection against voltage disturbances and electromagnetic disturbances
252 IEC 61010-1:2010, Safety requirements for electrical equipment for measurement, control, and
253 laboratory use – Part 1: General requirements
254 IEC 61010-1:2010/AMD1:2016
255 IEC 61010-1:2010/AMD2:—
256 IEC 61010-2-032:— , Safety requirements for electrical equipment for measurement, control,
257 and laboratory use – Part 2-032: Particular requirements for hand-held and hand-manipulated
258 current sensors for electrical test and measurement
259 IEC 61010-031:2022, Safety requirements for electrical equipment for measurement, control and
260 laboratory use – Part 031: Safety requirements for hand-held probe assemblies for electrical
261 measurement and test
3 Terms, definitions and abbreviated terms
262 Replace the existing title of Clause 3 with the following new title:
263 3 Terms, definitions and abbreviated terms
3.5 Safety terms
264 Add the following new term and definition after 3.2.5:
___________
Second amendment under preparation. Stage at the time of publication: IEC FDIS 61010-1/AMD2:2026.
Sixth edition under preparation. Stage at the time of publication: IEC CDV 61010-2-032:2026.
IEC CDV 61010-2-030 © IEC 2026
3.2.101
266 MEASURING CIRCUIT
267 testing or measuring circuit (internal to the equipment) which is connected for test or
268 measurement purposes to devices or circuits outside the equipment itself

Replace the definition of 3.5.4 with the following new definition:
270 3.5.4
271 MAINS
272 AC or DC electrical power distribution system (external to the equipment)
273 NOTE 1 to entry: MAINS include p ub lic o r p rivate electrical utilities and , unless o therwise sp ecified in this d ocument,
274 equivalent sources such as motor-driven generators and uninterruptible power supplies.
275 NOTE 2 to entry: This d ef inition d iffers fro m the IEC 61010-1:2010/AMD2:— d ef inition b y allo wing vo ltages g reater
276 than 1 000 V AC and 1 500 V DC and MAINS can be used to power the equipment or be measured.

277 Add the following two new terms and definitions after 3.5.24:
278 3.5.101
279 HIGH INTEGRITY
280 providing a degree of protection against HAZARDS equivalent to two levels of protection
281 NOTE 1 to entry: A HIGH INTEGRITY p art is co nsidered as no t sub ject to f ailure when tests und er f ault co nd itions are
282 made.
283 NOTE 2 to entry: See reinforced protection defined in IEC 60050-903:2013, 903-02-08.
284 3.5.102
285 MEASUREMENT CATEGORY
286 numeral defining MEASURING CIRCUITS according to the type of MAINS to which they are intended
287 to be connected
IEC CDV 61010-2-030 © IEC 2026
288 Add the new following 3.101 and a new Table 101 after 3.6:
289 3.101 Abbreviated terms
290 The list of abbreviated terms and symbols used in this document is given in Table 101.
291 Table 101 – Abbreviated terms
Abbreviated term
Term Note
or symbol
Pertaining to alternating electric quantities such as voltage or
AC alternating current
current, to devices operated with these, or to quantities
associated with these devices (IEC 60050-151:2001, 151-15-01,
modif ied).
Pertaining to time-ind ependent electric q uantities such as vo ltage
DC direct current
o r current, to d evices o p erated with d irect vo ltage and current, o r
to q uantities associated with these d evices (IEC 60050-151:2001,
151-15-02, modified).
RMS root-mean-square Fo r a time-dependent quantity, positive square root of the mean
value of the square of the quantity taken over a given time
interval (IEC 60050-103:2009/AMD1:2017, 103-02-03, modified).
Surge protective devices connected to low-voltage power systems
SPD surge protective
described in IEC 61643-11.
device
Components for low-voltage surge protective devices (SPD) described in
surge protective
SPC
IEC 61643 series such as IEC 61643-311, IEC 61643-331, IEC 61643-
component
341.
B BASIC INSULATION or BASIC INSULATION or SUPPLEMENTARY INSULATION is required or
SUPPLEMENTARY
allowed.
INSULATION
DOUBLE INSULATION DOUBLE INSULATION or REINFORCED INSULATION is required or
D
or REINFORCED
allowed.
INSULATION
OVERVOLTAGE
OVC "OVC" precedes the OVERVOLTAGE CATEGORY numeral.
CATEGORY
CAT MEASUREMENT "CAT" precedes the MEASUREMENT CATEGORY numeral.

CATEGORY
CLEARANCE f or D is the CLEARANCE that would be applicable to a TRANSIENT
D 1
TRANSIENT
OVERVOLTAGE with the shape of a 1,2 × 50 µs impulse
OVERVOLTAGE (see K.3.2).
CLEARANCE f or D is the CLEARANCE that would be applicable to the peak
D 2
WORKING VOLTAGE WORKING VOLTAGE without any TRANSIENT OVERVOLTAGE
(see K.3.2).
U is maximum peak value of the working voltage plus the
U maximum peak value
m m
maximum additional transient overvoltage (see K.3.2).
4 Assessment, tests, and environmental conditions
4.3 Reference test conditions
4.3.2 State of equipment
292 4.3.2.6 Input and output voltages
293 Replace the existing title and text of 4.3.2.6 with the following new title and text:
294 4.3.2.6 Input and output voltages or currents
295 Input and output voltages or currents, including floating voltages but excluding the electrical
296 supply source (see 4.3.2.5), shall be set to any voltage or current within their RATED range, in
297 normal and reverse polarity if possible.
IEC CDV 61010-2-030 © IEC 2026
4.4 Testing in SINGLE FAULT CONDITION
4.4.2 Application of fault conditions
298 4.4.2.1 General
299 Replace the item 2) of the first paragraph of 4.4.2.1 with the following new item 2):
300 2) Applicable fault conditions specified in 4.4.2.2 to 4.4.2.15 and 4.4.2.101;

301 Add the following 4.4.2.101 after 4.4.2.15:
302 4.4.2.101 Surge protective components (SPC)
303 SPC used in MAINS CIRCUITS or MEASURING CIRCUITS connected to MAINS shall be short-circuited
304 and open-circuited, only one at a time in turn in any convenient order (see also 14.8).
5 Marking and documentation
5.1 Marking
5.1.5 TERMINALS, connections and operating devices
305 Add the following 5.1.5.101 after 5.1.5.2:
306 5.1.5.101 MEASURING CIRCUIT TERMINALS
307 5.1.5.101.1 General
308 MEASURING CIRCUIT TERMINALS are usually arranged in pairs or sets. Each pair or set of
309 TERMINALS may have a RATED voltage or a RATED current, or both, within that set, and each
310 individual TERMINAL may have a RATED voltag e to earth. For some eq uipment, the RATED voltage
311 between TERMINALS may be different from the RATED voltage to earth. Markings shall be clear
312 to avoid misunderstanding.
313 Some MEASURING CIRCUIT TERMINALS for the equipment within the scope of this document also
314 serve as output TERMINALS.
315 Except as permitted in 5.1.5.101.5:
316 a) each pair or set of MEASURING CIRCUIT TERMINALS that are intended to be used together shall
317 be marked with the value of the RATED voltage or the RATED current, as applicable; and
318 b) MEASURING CIRCUIT TERMINALS RATED for MEASUREMENT CATEGORIES shall be marked with the
319 value of the RATED nominal AC RMS line-to-neutral or DC voltage of MAINS as specified in
320 5.1.5.101.2, and other MEASURING CIRCUIT TERMINALS shall be marked with the value of the
321 RATED voltage to earth; and
322 c) each individual, pair, or set of MEASURING CIRCUIT TERMINALS shall be marked with the
323 pertinent numeral of the MEASUREMENT CATEGORY for as specified in 5.1.5.101.2 or with the
324 symbol 14 of Table 1 as specified in 5.1.5.101.3, if applicable.
325 Current MEASURING CIRCUIT TERMINALS not intended for connection to the secondary of current
326 transformers without internal protection shall be marked with symbol 14 of Table 1 (see
327 9.101.4.2).
328 Markings shall be placed adjacent to the TERMINALS. However, if there is insufficient space (as
329 in multi-input equipment), the marking may be on the RATING plate or scale plate, or the
330 TERMINAL may be marked with symbol 14 of Table 1.
331 Any set of MEASURING CIRCUIT TERMINALS does not need to be marked with symbol 14 of T able 1
332 more than once, if it is close to the TERMINALS.
IEC CDV 61010-2-030 © IEC 2026
Conformity is checked by inspection and, if applicable, as specified in 5.1.5.101.2, 5.1.5.101.3
334 and 5.1.5.101.4, taking the exceptions in 5.1.5.101.5 into account.
335 5.1.5.101.2 MEASURING CIRCUIT TERMINALS RATED for MEASUREMENT CATEGORIES
336 TERMINALS of MEASURING CIRCUITS RATED for MEASUREMENT CATEGORIES shall be marked with the
337 numeral of the MEASUREMENT CATEGORY and the nominal AC RMS line-to-neutral or DC voltage
338 of the MAINS RATED for the MEASUREMENT CATEGORY.
339 1) The numeral of the MEASUREMENT CATEGORY markings shall be marked "CAT II", "CAT III"
340 or "CAT IV" as applicable.
341 2) The nominal AC RMS line-to-neutral or DC voltage of MAINS being measured is the voltage
342 to earth for MEASUREMENT CATEGORIES. It is taken from the following list:
343 50 V, 100 V, 150 V, 300 V, 600 V, 1 000 V, 1 500 V, 2 000 V and 3 000 V.
344 Marking those TERMINALS with the nature AC or DC of the nominal AC RMS line-to-neutral
345 or DC voltage of the MAINS RATED for the MEASUREMENT CATEGORY only is permissible.
346 NOTE CLEARANCES and solid insulation for MEASUREMENT CATEGORIES are RATED f or a nominal AC RMS line-
347 to-neutral voltage or a DC voltage of MAINS. Neutral is considered to be earthed (see K.101.2, K.101.4 and
348 Annex I).
349 Marking those TERMINALS with more than one numeral of MEASUREMENT CATEGORY and its
350 nominal AC RMS line-to-neutral or DC voltage of MAINS is permissible.
351 Conformity is checked by inspection.
352 The nominal AC RMS line-to-neutral or DC voltage of MAINS for the MEASUREMENT CATEGORY is
th
353 g iven in the 7 column of T able I.1 from Annex I (Line-to-neutral pertinent to MAINS system type
354 and nominal voltage) for MAINS supply systems up to 1 000 V.
355 The phase-to-phase voltage on these MAINS supply systems can be higher than the nominal AC
356 RMS line-to-neutral or DC voltage of MAINS for the MEASUREMENT CATEGORY.
357 EXAMPLE According to Annex I, the nominal voltages of a three-phase f our-wire systems with earthed neutral in
358 TT system can be 277 V (L-N)/480 V (L-L) while the line-to-neutral pertinent to MAINS system type (the nominal
359 voltage nominal AC RMS line-to-neutral or DC voltage of MAINS) is 300 V.
360 The RATED voltage of the TERMINALS of a MEASURING CIRCUIT intended for MAINS voltage
361 measurements shall be equal to or higher than their nominal AC RMS line-to-neutral or DC
362 voltage of the MAINS RATED for the MEASUREMENT CATEGORY.
363 Conformity is checked by inspection.
364 5.1.5.101.3 MEASURING CIRCUIT TERMINALS RATED for connection to voltages above the
365 levels of 6.3.1
366 TERMINALS of MEASURING CIRCUIT TERMINALS RATED for connection to voltages above the levels
367 of 6.3.1, but not RATED for MEASUREMENT CATEGORIES shall be marked with symbol 14 of T able 1
368 in close proximity to those TERMINALS (see also 5.4.1 bb) ).
369 Conformity is checked by inspection.
370 5.1.5.101.4 HAZARDOUS LIVE output TERMINALS
371 Output TERMINALS which can be HAZARDOUS LIVE shall be marked with symbol 12 of Table 1 in
372 close proximity to those TERMINALS.
373 Conformity is checked by inspection.
IEC CDV 61010-2-030 © IEC 2026
374 EASURING CIRCUIT TERMINALS which are permanently connected, dedicated,
5.1.5.101.5 M
375 or for non-HAZARDOUS LIVE voltages
376 MEASURING CIRCUIT TERMINALS do not need to be marked if:
377 a) they are intended to be permanently connected and not ACCESSIBLE (see 5.4.3 aa) and bb)),
378 or
379 b) they are dedicated only for connection to specific TERMINALS of other equipment, or
380 c) it is obvious from other indications that the RATED voltage does not exceed the levels of
381 6.3.1.
382 NOTE Examples of acceptable indications that the RATED voltage of the inputs is intended to not exceed the
383 levels of 6.3.1 include:
384 – the f ull-scale d eflection marking o f a sing le-rang e ind icating vo ltmeter o r ammeter o r maximum marking of a
385 multi-range multimeter;
386 – the maximum range marking of a voltage selector switch;
387 – a marked vo ltag e o r p o wer RATING exp ressed in d B, mW o r W, where the eq uivalent value, as exp lained in
388 the documentation, does not exceed 30 V AC.
389 Conformity is checked by inspection.
5.4 Documentation
390 5.4.1 General
391 Add the following two new items to the list of the first paragraph of 5.4.1 after item k):
392 aa) information about each relevant MEASUREMENT CATEGORY if the MEASURING CIRCUIT is
393 RATED for MEASUREMENT CATEGORIES (see 5.1.5.101.2);
394 bb) for MEASURING CIRCUITS that are not RATED for MEASUREMENT CATEGORIES, but that could
395 be misused by connection to such circuits, a warning not to use the equipment for
396 measurements on MAINS, and a detailed RATING including TRANSIENT OVERVOLTAGES (see
397 AA.2.4 for more information).

398 Insert the following new paragraph between the first and the second paragraph of 5.4.1 after
399 the list:
400 Some equipment may have multiple MEASUREMENT CATEGORY RATINGS for the same MEASURING
401 CIRCUIT. For such equipment, the documentation shall clearly identify the MEASUREMENT
402 CATEGORIES where the equipment is intended to be used and where it shall not be used.

403 5.4.2 Equipment RATINGS
404 Add the following new item to the list of the first paragraph of 5.4.2 after item f):
405 aa) when relevant, the output voltage or voltage range, frequency and current RATING.

406 5.4.3 Equipment installation
407 Add the following two new items to the list of the first paragraph of 5.4.3 after item h):
408 aa) for MEASURING CIRCUIT TERMINALS intended for permanent connection and that are RATED
409 for MEASUREMENT CATEGORIES, information regarding the MEASUREMENT CATEGORY,
410 RATED voltages or RATED currents as applicable (see 5.1.5.101.2);
411 bb) for MEASURING CIRCUIT TERMINALS intended for permanent connection and that are not
412 RATED for MEASUREMENT CATEGORIES, information regarding the RATED voltages, RATED
IEC CDV 61010-2-030 © IEC 2026
413 currents, and RATED TRANSIENT OVERVOLTAGES as applicable or information for dedicated
414 connection (see 5.1.5.101.5).

415 5.4.4 Equipment operation
416 Add the following two new items to the list of the first paragraph of 5.4.4 after item l):
417 aa) instructions to warn the OPERATOR that a HAZARDOUS LIVE voltage can be present on
418 locking or screw-held type TERMINALS during NORMAL USE if it is not feasible for operating
419 reasons to prevent it (see 6.1.2 aa));
420 bb) when performing an AC or a DC current measurement in series with an inductive circuit,
421 instructions to warn the OPERATOR that a HAZARDOUS LIVE voltage can be present if the
422 circuit is suddenly opened (a probe falls off for example) (see 16.102);
423 cc) instructions for a daily check before use to ensure the correct functionality of the
424 equipment before use when one HAZARD indicator has been considered to be sufficient in
425 (see 6.101.3).
NORMAL CONDITION
6 Protection against electric shock
426 6.1.1 Requirements
427 Add the words “and 6.101” at the end of the conformity statement of 6.1.1:

428 6.1.2 Exceptions
429 Add the following new item to the list of 6.1.2 after item b):
430 aa) locking or screw-held type MEASURING CIRCUITS TERMINALS, including TERMINALS which
431 do not require the use of a TOOL (see 5.4.4 aa)). Symbol 12 of Table 1 shall be marked
432 adjacent to the TERMINALS. Alternatively, symbol 14 of Table 1 may be used in lieu of
433 symbol 12. If this is not possible, the symbol shall be marked on the equipment as far
434 as practical to indicate a warning.
6.5 Additional means of protection in case of SINGLE FAULT CONDITIONS
435 6.5.1 General
436 Replace the existing item c) of 6.5.1 with the following new item c):
437 c) automatic disconnection of HAZARDOUS LIVE voltage source (see 6.5.5);

438 Replace in Figure 4, the text in the cell referenced 6.5.1 c) with the text “Automatic
439 disconnection of HAZARDOUS LIVE voltage source”.
6.5.2 Protective bonding
440 6.5.2.3 PROTECTIVE CONDUCTOR TERMINAL
441 Replace the existing item h) 2) of 6.5.2.3 with the following new item h) 2):
442 h) 2) the PROTECTIVE BONDING shall not be interrupted by any switching or interrupting device.
443 Devices used for indirect bonding in MEASURING CIRCUITS (see 6.5.5 and 6.5.6) are
444 permitted to be part of the PROTECTIVE BONDING.
6.5.5 Automatic disconnection of the supply
445 Replace the existing title of 6.5.5 with the following new title:
IEC CDV 61010-2-030 © IEC 2026
446 6.5.5 Automatic disconnection of HAZARDOUS LIVE voltage source

447 Add the following five paragraphs after the last paragraph of 6.5.5:
448 For MEASURING CIRCUITS, voltage-sensitive tripping devices can be used to establish indirect
449 bonding between the PROTECTIVE CONDUCTOR TERMINAL and ACCESSIBLE conductive parts if
450 these become HAZARDOUS LIVE as a result of a fault.
451 Voltage-sensitive tripping devices interrupt the HAZARD OUS LIVE voltage source, or con
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