EN 61010-2-032:2012

SLOVENSKI STANDARD
01-februar-2013
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SIST EN 61010-2-032:2003
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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 61010-2-032:2012)
Sicherheitsbestimmungen für elektrische Mess-, Steuer-, Regel- und Laborgeräte - Teil 2
-032: Besondere Anforderungen für handgehaltene und handbediente Stromsonden für
elektrische Prüfungen und Messungen (IEC 61010-2-032:2012)
Règles 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 à la main, de test et de mesure électriques (CEI 61010-2-032:2012)
Ta slovenski standard je istoveten z: EN 61010-2-032:2012
ICS:
19.080 (OHNWULþQRLQHOHNWURQVNR Electrical and electronic
SUHVNXãDQMH 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.

EUROPEAN STANDARD
EN 61010-2-032
NORME EUROPÉENNE
November 2012
EUROPÄISCHE NORM
ICS 19.080 Supersedes EN 61010-2-032:2002

English version
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 61010-2-032:2012)
Règles de sécurité pour appareils Sicherheitsbestimmungen für elektrische
électriques de mesurage, de régulation et Mess-, Steuer-, Regel- und Laborgeräte –
de laboratoire - Teil 2-032: Besondere Anforderungen für
Partie 2-032: Exigences particulières pour handgehaltene und handbediente
les capteurs de courant, portatifs et Stromsonden für elektrische Prüfungen
manipulés à la main, de test et de mesure und Messungen
électriques (IEC 61010-2-032:2012)
(CEI 61010-2-032:2012)
This European Standard was approved by CENELEC on 2012-10-31. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the CEN-CENELEC Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61010-2-032:2012 E

Foreword
The text of document 66/474/FDIS, future edition 3 of IEC 61010-2-032, prepared by IEC/TC 66, "Safety
of measuring, control and laboratory equipment" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN 61010-2-032:2012.
The following dates are fixed:
(dop) 2013-07-31
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2015-10-31
standards conflicting with the
document have to be withdrawn
This document supersedes EN 61010-2-032:2002.
032:2002:
a) A new Type D current sensor has been defined.
b) The terminology for MEASUREMENT CATEGORY I has changed. In this Part 2-032, it is termed “not RATED
for measurements within MEASUREMENT CATEGORIES II, III, or IV”.
c) Requirements for markings of measuring circuit TERMINALS and JAWS have been modified.
d) CLEARANCES and CREEPAGE DISTANCES have been added for unmated measuring circuit TERMINALS.
e) Requirements have been added for specialized measuring circuit TERMINALS.
f) The pull test for endcaps of flexible current sensors has been revised.
g) Requirements for output circuit leads have been revised.
h) Requirements have been added for temperature limits and resistance to heat to prevent thermal
HAZARDS from eddy currents and high currents.
i) Requirements for circuits or components used as TRANSIENT OVERVOLTAGE limiting devices have been
revised.
j) Requirements have been added for low battery indication.
k) Requirements have been revised and added pertaining to REASONABLY FORESEEABLE MISUSE of
measuring circuits, including usage of the current sensor in a manner that might cause arc flash.
l) Requirements for MAINS voltage measuring circuits have been added.
m) Requirements to prevent HAZARDs from short-circuits have been revised and located in a new Clause
102.
n) ROUTINE TESTS have been modified.
o) Insulation requirements for measuring circuits have been primarily located in Annex K.
p) Annex AA has been added to describe the characteristics of MEASUREMENT CATEGORIES.
q) Annex BB has been added to describe HAZARDS that may be encountered when using measuring
circuits.
established. Consideration may be given to future editions of, or amendments to, EN 61010-1.
This Part 2-032 supplements or modifies the corresponding clauses in EN 61010-1 so as to convert that
publication into the European Standard: Particular requirements for HAND-HELD MULTIMETERS and other
METERS, for domestic and professional use, capable of measuring MAINS voltage.
Where a particular subclause of Part 1 is not mentioned in this Part 2-032, that subclause applies as far
as is reasonable. Where this part states “addition”, “modification”, “replacement”, or “deletion” the relevant
requirement, test specification or note in Part 1 should be adapted accordingly.
In this standard:
a) the following print types are used:
– requirements: in roman type;

- 3 - EN 61010-2-032:2012
– NOTES: in small roman type;
– conformity and test: in italic type;
– terms used throughout this standard which have been defined in Clause 3: SMALL ROMAN CAPITALS;
b) subclauses, figures, tables and notes which are additional to those in Part 1 are numbered starting
from 101; and additional list items are numbered from aa). Additional annexes are numbered AA and BB.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
This standard covers the Principle Elements of the Safety Objectives for Electrical Equipment Designed
for Use within Certain Voltage Limits (LVD - 2006/95/EC)
Endorsement notice
The text of the International Standard IEC 61010-2-032:2012 was approved by CENELEC as a European
Standard without any modification.
Add the following reference to the bibliography of EN 61010-1:

IEC 61010-2-033 NOTE  Harmonized as EN 61010-2-033.

IEC 61010-2-032 ®
Edition 3.0 2012-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
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

Règles 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 à la main, de test et de mesure électriques

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX X
ICS 19.080 ISBN 978-2-83220-405-4

– 2 – 61010-2-032 © IEC:2012
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope and object . 8
2 Normative references . 11
3 Terms and definitions . 11
4 Tests . 12
5 Marking and documentation . 12
6 Protection against electric shock . 16
7 Protection against mechanical HAZARDS . 22
8 Resistance to mechanical stresses . 23
8.1 General . 23
8.2 ENCLOSURE rigidity tests . 23
9 Protection against the spread of fire . 23
10 Equipment temperature limits and resistance to heat . 24
11 Protection against HAZARDS from fluids . 24
12 Protection against radiation, including laser sources, and against sonic and
ultrasonic pressure . 25
13 Protection against liberated gases and substances, explosion and implosion . 25
14 Components and subassemblies . 25
15 Protection by interlocks . 26
16 HAZARDS resulting from application . 26
17 RISK assessment . 26
101 Measuring circuits . 27
102 Prevention of HAZARD from arc flash and short-circuits . 30
102.1 General . 30
102.2 Protection against short-circuits during clamping . 31
102.3 Protection against short-circuits in closed position . 32
Annexes . 33
Annex D (normative) Parts between which insulation requirements are specified (see
6.4, 6.5.3, 6.9.101 and 6.9.103) . 33
Annex F (normative) ROUTINE TESTS . 35
Annex K (normative) Insulation requirements not covered by 6.7 . 36
Annex L (informative) Index of defined terms . 42
Annex AA (normative) MEASUREMENT CATEGORIES . 44
Annex BB (informative) HAZARDS pertaining to measurements performed in certain
environments . 46
Bibliography . 48

Figure 101 – Examples of current sensors and their parts . 10
Figure 102 – Pre-treatment of the JAW ENDS . 18
Figure 103 – CLEARANCE between the PROTECTIVE BARRIER or tactile indicator to the
JAWS and to the HAZARDOUS LIVE conductor . 19
Figure 104 – Treatment of the insulation of a flexible current sensor . 21

61010-2-032 © IEC:2012 – 3 –
Figure 105 – Pulley for the treatment of Figure 104 . 21
Figure 106 – Test probe to check protection against short-circuits . 31
Figure 107 – Use of the test probe of Figure 106 . 32
Figure D.101 – Parts of current sensors (see also Table D.101) . 33
Figure AA.1 – Example to identify the locations of measuring circuits . 45

Table 101 – CLEARANCES and CREEPAGE DISTANCES for measuring circuit TERMINALS
with HAZARDOUS LIVE conductive parts . 17
Table 102 – Pull forces for endcaps of flexible current sensors . 22
Table 103 – Energy level . 23
Table 104 – Impulse voltages . 26
Table 105 – Thickness of the test probe of Figure 106 and test voltages. 32
Table D.101 – Insulation requirements between circuits and ACCESSIBLE parts of
current sensors . 34
Table F.101 – Test voltages for ROUTINE TESTS of JAWS of current sensors . 35
Table K.101 – CLEARANCES for measuring circuits of MEASUREMENT CATEGORIES II, III
and IV . 37
Table K.102 – Test voltages for testing electric strength of solid insulation in
measuring circuits of MEASUREMENT CATEGORY II . 38
Table K.103 – Test voltages for testing electric strength of solid insulation in
measuring circuits of MEASUREMENT CATEGORY III . 38
Table K.104 – Test voltages for testing electric strength of solid insulation in
measuring circuits of MEASUREMENT CATEGORY IV . 39
Table K.105 – Test voltages for testing long term stress of solid insulation in
measuring circuits . 39
Table AA.1 – Characteristics of MEASUREMENT CATEGORIES . 45

– 4 – 61010-2-032 © IEC:2012
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
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

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61010-2-032 has been prepared by IEC technical committee 66:
Safety of measuring, control and laboratory equipment.
The text of this standard is based on the following documents:
FDIS Report on voting
66/474/FDIS 66/488/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This third edition cancels and replaces the second edition published in 2002. This edition
constitutes a technical revision.

61010-2-032 © IEC:2012 – 5 –
This edition includes the following significant technical changes with respect to the previous
edition:
a) A new Type D current sensor has been defined.
b) The terminology for MEASUREMENT CATEGORY I has changed. In this Part 2-032, it is
termed “not RATED for measurements within MEASUREMENT CATEGORIES II, III, or IV”.
c) Requirements for markings of measuring circuit TERMINALS and JAWS have been modified.
d) CLEARANCES and CREEPAGE DISTANCES have been added for unmated measuring circuit
TERMINALS.
e) Requirements have been added for specialized measuring circuit TERMINALS.
f) The pull test for endcaps of flexible current sensors has been revised.
g) Requirements for output circuit leads have been revised.
h) Requirements have been added for temperature limits and resistance to heat to prevent
thermal HAZARDS from eddy currents and high currents.
i) Requirements for circuits or components used as TRANSIENT OVERVOLTAGE limiting
devices have been revised.
j) Requirements have been added for low battery indication.
k) Requirements have been revised and added pertaining to REASONABLY FORESEEABLE
MISUSE of measuring circuits, including usage of the current sensor in a manner that
might cause arc flash.
l) Requirements for MAINS voltage measuring circuits have been added.
m) Requirements to prevent HAZARDs from short-circuits have been revised and located in a
new Clause 102.
n) ROUTINE TESTS have been modified.
o) Insulation requirements for measuring circuits have been primarily located in Annex K.
p) Annex AA has been added to describe the characteristics of MEASUREMENT CATEGORIES.
q) Annex BB has been added to describe HAZARDS that may be encountered when using
measuring circuits.
This Part 2-032 is intended to be used in conjunction with IEC 61010-1. It was established on
the basis of the third edition (2010). Consideration may be given to future editions of, or
amendments to, IEC 61010-1.
This Part 2-032 supplements or modifies the corresponding clauses in IEC 61010-1 so as to
convert that publication into the IEC standard: Particular requirements for HAND-HELD and
hand-manipulated current sensors for electrical test and measurement.
Where a particular subclause of Part 1 is not mentioned in this Part 2-032, that subclause
applies as far as is reasonable. Where this part states “addition”, “modification”,
“replacement”, or “deletion” the relevant requirement, test specification or note in Part 1
should be adapted accordingly.
In this standard:
a) the following print types are used:
– requirements: in roman type;
– NOTES: in small roman type;
– conformity and test: in italic type;
– terms used throughout this standard which have been defined in Clause 3: SMALL
ROMAN CAPITALS;
– 6 – 61010-2-032 © IEC:2012
b) subclauses, figures, tables and notes which are additional to those in Part 1 are numbered
starting from 101; and additional list items are numbered from aa). Additional annexes are
numbered AA and BB.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 61010 series, under the general title Safety requirements for
electrical equipment for measurement, control and laboratory use, can be found on the IEC
website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
61010-2-032 © IEC:2012 – 7 –
INTRODUCTION
IEC 61010-1 specifies the safety requirements that are generally applicable to all equipment
within its scope. For certain types of equipment, the requirements of IEC 61010-1 will be
supplemented or modified by the special requirements of one, or more than one, particular
part 2s of the standard which are to be read in conjunction with the Part 1 requirements.
This Part 2-032 specifies the safety requirements that are generally applicable to HAND-HELD
and hand-manipulated current sensors (see Clause 1).
Part 2-030 specifies the safety requirements for testing and measuring circuits which are
connected for test or measurement purposes to devices or circuits outside the measurement
equipment itself.
Part 2-033 specifies the safety requirements for HAND HELD METERS that have a primary
purpose of measuring voltage on a live MAINS CIRCUIT.
Except for protective bonding, all requirements of Part 2-030 have been included into
Part 2-032. Equipment within the scopes of Part 2-030 and Part 2-032 are considered to be
covered by the requirements of Part 2-032. However, for equipment within the scope of both
Part 2-032 and Part 2-033, the two standards are to be read in conjunction.

– 8 – 61010-2-032 © IEC:2012
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

1 Scope and object
This clause of Part 1 is applicable except as follows:
1.1.1 Equipment included in scope
Replacement:
Replace the existing text with the following:
This part of IEC 61010 specifies safety requirements for HAND-HELD and hand-manipulated
current sensors described below.
These current sensors are for measuring, detecting or injecting current, or indicating current
waveforms on circuits without physically opening the current path of the circuit being
measured. They may be stand-alone current sensors or accessories to other equipment or
parts of combined equipment (see Figure 101). These include measurement circuits which are
part of electrical test and measurement equipment, laboratory equipment, or process control
equipment. The existence of these current sensors and circuits in equipment requires
additional protective means between the current sensor, the circuit and an OPERATOR.
NOTE 1 This part includes also the requirements of Part 2-030. Testing and measuring circuits that are not within
the scope of this part are considered to be covered by the requirements of Part 1 or other parts 2s of IEC 61010,
and then will also need to meet the requirements of these other parts with the exception of Part 2-030. Current
clamp meters and similar currents sensors that have a primary purpose of measuring voltage on a live MAINS
CIRCUIT are also within the scope of Part 2-033.
NOTE 2 Some current sensors are also known as current clamps and current probes.
Current sensors require hand manipulation before or after a test or measurement, but do not
necessarily need to be HAND-HELD during the test or measurement.
NOTE 3 Some current sensors designed for portable use can also be used for fixed installations.
The following types of current sensors are covered:
a) Type A: a current sensor designed to be applied around or removed from UNINSULATED
HAZARDOUS LIVE conductors. Type A current sensors have defined HAND-HELD or hand-
manipulated parts providing protection against electric shock from the conductor being
measured, and also have protection against short-circuits between wires and busbars
during clamping.
b) Type B: a current sensor which has protection against short-circuits between wires or
busbars during clamping but without defined HAND-HELD or hand-manipulated parts which
provide protection against electric shock during clamping. Additional protective means are
necessary to avoid electric shock from HAZARDOUS LIVE conductors which cannot be de-
energised during application or removal of the current sensor.
EXAMPLE 1 Flexible current sensors.
c) Type C: a current sensor without protection against short-circuits between wires or
busbars during clamping. Type C current sensors are intended to be applied to or removed

61010-2-032 © IEC:2012 – 9 –
from UNINSULATED HAZARDOUS LIVE conductors or from non-limited-energy circuit
conductors only when they are de-energised.
EXAMPLE 2 Split-core transducers.
d) Type D: a current sensor designed to be applied around or removed from insulated
conductors or from limited-energy circuit conductors.
A Type D current sensor does not need protection against short-circuits during clamping
and has no defined HAND-HELD or hand-manipulated parts providing protection against
electric shock from the conductor being measured.
EXAMPLE 3 Current probes for oscilloscopes and earth leakage current detectors.
NOTE 4 All current sensors can also be used around insulated conductors. In this case, HAZARDS are limited to
acceptable levels by the insulation of the conductors.

– 10 – 61010-2-032 © IEC:2012
1 3
Type A Type A
Current sensor as an accessory Current sensor with self-contained measuring functions
or with additional measuring functions
2 1
Type B Type C
Flexible current sensor Split-core current sensor

IEC  1865/12
Type D
Current sensor for non HAZARDOUS LIVE applications
(shown with a sliding JAW)
Key
1 JAW END(S)
2 JAW
3 measuring circuit TERMINALS
Figure 101 – Examples of current sensors and their parts
1.2.1 Aspects included in scope
Addition:
Add the following two new paragraphs at the end of the subclause:
Requirements for protection against HAZARDS resulting from NORMAL USE and REASONABLY
of measuring circuits are given in Clause 101.
FORESEEABLE MISUSE
0,00 A
61010-2-032 © IEC:2012 – 11 –
Requirements for prevention of HAZARD from arc flash and short-circuits are given in
Clause 102.
2 Normative references
This clause of Part 1 is applicable.
3 Terms and definitions
This clause of Part 1 is applicable except as follows:
3.1 Equipment and states of equipment
Addition:
Add the following new definition:
3.1.101
HAND-HELD
intended to be supported by one hand during NORMAL USE
3.2 Parts and accessories
Addition:
Add the following new definitions:
3.2.101
JAW
part of a current sensor which surrounds or partially surrounds the conductor under test
3.2.102
JAW END
part of the JAW where opening occurs while clamping around a conductor
3.5 Safety terms
Replacement:
Replace the definitions of 3.5.4 and 3.5.5 with the following new definitions:
3.5.4
MAINS
low-voltage electricity supply system to which the current sensor concerned is designed to be
connected for the purpose of powering the current sensor or for measurements
3.5.5
MAINS CIRCUIT
circuit which is intended to be directly connected to the MAINS for the purpose of powering the
current sensor or for measurements

– 12 – 61010-2-032 © IEC:2012
Addition:
Add the following new definition:
3.5.101
MEASUREMENT CATEGORY
classification of testing and measuring circuits according to the type of MAINS CIRCUITS to
which they are intended to be connected
Note 1 to entry: MEASUREMENT CATEGORIES take into account OVERVOLTAGE CATEGORIES, short-circuit current
levels, the location in the building installation at which the test or measurement is to be made and some forms of
energy limitation or transient protection included in the building installation. See Annex AA for more information.
3.6 Insulation
Addition:
Add the following new definition:
3.6.101
UNINSULATED
not insulated by solid insulation or insulated by solid insulation which does not meet the
requirements for BASIC INSULATION for the relevant voltage to earth
4 Tests
This clause of Part 1 is applicable except as follows:
4.4.2.8 Outputs
Replacement:
Replace the text with the following:
Outputs shall be open-circuited and short-circuited, one at a time.
5 Marking and documentation
This clause of Part 1 is applicable except as follows:
5.1.2 Identification
Addition:
Add the following new items and a new paragraph after the note to item b):
aa) for current sensors designed for use only with a specific model of equipment, a clear
identification of the equipment, or with symbol 14 of Table 1 if this information is
available only in the documentation;
bb) for Type A current sensors, with symbol 102 of Table 1;
cc) for Type B and Type C current sensors, with symbol 101 of Table 1;
dd) for Type D current sensors, symbol 101 of Table 1 is permitted with an additional
marking (see 5.1.5.102).
The relevant symbol (14, 101 or 102) shall be marked adjacent to the JAWS or the marking of
the MEASUREMENT CATEGORY for the JAWS, if present (see 5.1.5.101 and 5.1.5.102).

61010-2-032 © IEC:2012 – 13 –
Table 1 – Symbols
Addition:
Add the following new symbols:
Number Symbol Reference Description
Do not apply around or
remove from UNINSULATED
HAZARDOUS LIVE
conductors, which may
render electric shock,
electric burn, or arc flash
Application around and
removal from UNINSULATED
HAZARDOUS LIVE
conductors is permitted
5.1.5 TERMINALS, connections and operating devices
Addition:
Add the following new subclauses:
5.1.5.101 Measuring circuit TERMINALS
5.1.5.101.1 General
Except as permitted in 5.1.5.101.4:
a) the value of the RATED voltage to earth of measuring circuit TERMINALS shall be marked,
and
b) the value of the RATED voltage or the RATED current, as applicable, of each pair or set of
measuring circuit TERMINALS that are intended to be used together shall be marked, and
c) the pertinent MEASUREMENT CATEGORY for each individual, pair, or set of measuring circuit
TERMINALS or symbol 14 of Table 1 shall be marked as specified in 5.1.5.101.2 and
5.1.5.101.3, if applicable.
Measuring circuit TERMINALS are usually arranged in pairs or sets. Each pair or set of
TERMINALS may have a RATED voltage or a RATED current, or both, within that set, and each
individual TERMINAL may have a RATED voltage to earth. For some equipment, the RATED
voltage between TERMINALS may be different from the RATED voltage to earth. Markings shall
be clear to avoid misunderstanding.
Markings shall be placed adjacent to the TERMINALS. However, if there is insufficient space (as
in multi-input equipment), the marking may be on the RATING plate or scale plate, or the
TERMINAL may be marked with symbol 14 of Table 1.
For any set of measuring circuit TERMINALS, symbol 14 of Table 1 does not need to be marked
more than once, if it is close to the TERMINALS.
Conformity is checked by inspection and, if applicable, as specified in 5.1.5.101.2 and
5.1.5.101.3, taking the exceptions in 5.1.5.101.4 into account.

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5.1.5.101.2 Measuring circuit TERMINALS RATED for MEASUREMENT CATEGORIES II, III or IV
The relevant MEASUREMENT CATEGORY shall be marked for measuring circuit TERMINALS RATED
for measurements within MEASUREMENT CATEGORIES II, III or IV. The MEASUREMENT CATEGORY
markings shall be “CAT II”, “CAT III” or “CAT IV” as applicable.
Marking more than one type of MEASUREMENT CATEGORY and its RATED voltage to earth is
permissible (see also 5.1.5.101.1).
Conformity is checked by inspection.
5.1.5.101.3 Measuring circuit TERMINALS RATED for connection to voltages above the
levels of 6.3.1
Symbol 14 of Table 1 shall be marked for measuring circuit TERMINALS RATED for connection to
voltages above the levels of 6.3.1, but that are not RATED for measurements within
MEASUREMENT CATEGORIES II, III or IV (see also 5.4.2 bb)).
Conformity is checked by inspection.
5.1.5.101.4 Low voltage, permanently connected, or dedicated measuring circuit
TERMINALS
Measuring circuit TERMINALS do not need to be marked if:
a) they are intended to be permanently connected and not ACCESSIBLE (see 5.4.3 aa)
and bb)), or
b) they are dedicated only for connection to specific TERMINALS of other equipment, or
c) it is obvious from other indications that the RATED voltage is below the levels of 6.3.1.
NOTE Examples of acceptable indications that the inputs are intended to be less than the levels of 6.3.1
include:
– the full scale deflection marking of a single-range indicating voltmeter or ammeter;
– the maximum range marking of a voltage selector switch;
– a marked voltage or power RATING expressed in dB, mW or W, where the equivalent value, as explained in
the documentation, is below 33 V a.c.
Conformity is checked by inspection.
RATINGS of JAWS
5.1.5.102 Voltage and current
Current sensors that are intended to be used on UNINSULATED conductors shall be marked
with the value of the RATED voltage to earth of the JAWS.
Current sensors that are intended to be used only on insulated conductors shall be marked to
indicate that the current sensor must not be used on UNINSULATED conductors, or with
symbol 14.
JAWS of Type A, Type B or Type C current sensors RATED for measurements within
MEASUREMENT CATEGORIES II, III or IV, shall be marked with the relevant MEASUREMENT
adjacent to the voltage to earth marking. The MEASUREMENT CATEGORY markings
CATEGORY
shall be “CAT II”, “CAT III” or “CAT IV” as applicable.
JAWS and output circuit TERMINALS of Type D current sensors shall not be marked with any
MEASUREMENT CATEGORY.
The value of the RATED current shall be marked. The nature of the current shall also be
marked unless the marked value applies to both a.c. and d.c. current.

61010-2-032 © IEC:2012 – 15 –
Conformity is checked by inspection.
5.4.2 Equipment RATINGS
Addition:
Add the following two new items to the list and a new paragraph:
aa) information about each relevant MEASUREMENT CATEGORY if the measuring circuit has a
RATING for MEASUREMENT CATEGORY II, III or IV (see 5.1.5.101.2 and 5.1.5.102);
bb) for current sensors that do not have a RATING for MEASUREMENT CATEGORY II, III or IV,
but could be misused by connection to such circuits, a warning not to use the current
sensor for measurements on MAINS CIRCUITS, and a detailed RATING including TRANSIENT
OVERVOLTAGES (see AA.2.4 for more information).
If the current sensor has multiple MEASUREMENT CATEGORY RATINGS for the same measuring
circuit, the documentation shall clearly identify the MEASUREMENT CATEGORIES where the
current sensor is intended to be used and where it must not be used.
5.4.3 Equipment installation
Addition:
Add the following two new items to the list:
aa) for measuring circuit TERMINALS intended for permanent connection and RATED for
MEASUREMENT CATEGORIES II, III or IV, information regarding the MEASUREMENT
CATEGORY, RATED voltages or RATED currents as applicable (see 5.1.5.101 and
5.1.5.102);
bb) for measuring circuit TERMINALS intended for permanent connection and that are not
RATED for MEASUREMENT CATEGORIES II, III or IV, information regarding the RATED
voltages, RATED currents, and RATED TRANSIENT OVERVOLTAGES as applicable (see
5.1.5.101 and 5.1.5.102).
5.4.4 Equipment operation
Replacement:
Replace the existing text with the following:
Instructions for use shall include, if applicable:
a) identification and description of operating controls and their use in all operating modes;
b) for current sensors designed for use only with a specific model of equipment, a clear
identification of the equipment;
c) specifications of limits for intermittent operation;
d) specifications of limits of the current versus the frequency if the magnetic circuit can reach
a hazardous temperature;
e) explanations of symbols related to safety which are used on the equipment;
f) instructions for interconnection to accessories and other equipment, including indication of
suitable accessories and detachable parts;
g) instructions for replacement of consumable materials;
h) instructions for cleaning and decontamination;
i) instructions for the application and removal of the current sensor;

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j) instructions to de-energise the installation on which the current is measured, or to adopt
safe operating procedures when working on HAZARDOUS LIVE installations, during
application and removal of Type B current sensors;
k) instructions to de-energise the installation on which the current is measured, when
working on HAZARDOUS LIVE installations, or non-limited-energy installations during
application and removal of Type C current sensors;
l) instructions about the function of the tactile indicator or PROTECTIVE BARRIER, indicating the
limit of safe access of the HAND-HELD part;
m) a warning to the OPERATOR that Type D current sensors are only for use around insulated
conductors or limited energy circuit conductors;
n) a warning to the OPERATOR that individual protective equipment should be used if
HAZARDOUS LIVE parts in the installation where measurement is to be carried out could be
ACCESSIBLE;
o) a warning to the OPERATOR not to use a flexible current sensor if the wear indicator of the
flexible cord used for the JAW of the flexible current sensor is visible (see 6.9.101.4);
p) a warning to the OPERATOR not to use a current sensor if the wear indicator in the JAW END
is visible (see 6.9.101.3);
q) a warning to the OPERATOR not to use a current sensor above its RATED frequency, if the
magnetic circuit can reach a hazardous temperature (see 10.101).
There shall be a statement in the instructions that, if the current sensor is used in a manner
not specified by the manufacturer, the protection provided by the current sensor may be
impaired.
Conformity is checked by inspection.
6 Protection against electric shock
This clause of Part 1 is applicable except as follows:
6.1.2 Exceptions
Addition:
Add the following new item aa):
aa) conductive parts of a JAW END, provided that they me
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