IEC 61010-2-032:2019

IEC 61010-2-032 ®
Edition 4.0 2019-06
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
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
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IEC 61010-2-032 ®
Edition 4.0 2019-06
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
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
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 19.080 ISBN 978-2-8322-6994-7
– 2 – IEC 61010-2-032:2019 © IEC 2019
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope and object . 8
2 Normative references . 10
3 Terms and definitions . 10
4 Tests . 11
5 Marking and documentation . 12
6 Protection against electric shock . 16
7 Protection against mechanical HAZARDS . 21
8 Resistance to mechanical stresses . 21
9 Protection against the spread of fire . 25
10 Equipment temperature limits and resistance to heat . 25
11 Protection against HAZARDS from fluids and solid foreign objects . 26
12 Protection against radiation, including laser sources, and against sonic and
ultrasonic pressure . 26
13 Protection against liberated gases and substances, explosion and implosion . 26
14 Components and subassemblies . 27
15 Protection by interlocks . 28
16 HAZARDS resulting from application . 28
17 RISK assessment . 28
Annexes . 36
Annex D (normative) Parts between which insulation requirements are specified (see
6.4, 6.5.3, 6.9.101 and 6.101) . 36
Annex F (normative) Routine tests . 38
Annex K (normative) Insulation requirements not covered by 6.7 . 39
Annex L (informative) Index of defined terms . 46
Annex AA (normative) MEASUREMENT CATEGORIES . 47
Annex BB (informative) HAZARDS pertaining to measurements performed in certain
environments . 49
Annex CC (informative) 4-mm "banana" TERMINALS . 52
Annex DD (informative) Flowchart for insulation according to the type of circuit . 54
Annex EE (normative) CLAMP MULTIMETER . 57
Bibliography . 60
Figure 101 – Examples of current sensors and their parts . 9
Figure 102 – CLEARANCE between the PROTECTIVE BARRIER to the JAWS and to the
HAZARDOUS LIVE conductor . 19
Figure 103 – Abrasion test of the JAW ENDS . 22
Figure 104 – Impact points for JAW impact test . 23
Figure 105 – Indentation device . 24
Figure 106 – Test probe to check protection against short-circuits . 34
Figure 107 – Use of the test probe of Figure 106 . 34

Figure D.101 – Parts of current sensors (see also Table D.101) . 36
Figure AA.1 – Example to identify the locations of measuring circuits . 48
Figure CC.1 – Recommended dimensions of 4-mm TERMINALS . 53
Figure DD.1 – Requirements for CLEARANCE, CREEPAGE DISTANCE and solid insulation . 56
Figure EE.1 – Examples of CLAMP MULTIMETERS . 57
Table 1 – Symbols . 12
Table 101 – CLEARANCES and CREEPAGE DISTANCES for measuring circuit TERMINALS
with HAZARDOUS LIVE conductive parts up to 1 000 V a.c. or 1 500 V d.c. . 17
Table 102 – Energy level for JAW impact test . 22
Table 103 – Pull forces for endcaps of flexible current sensors . 25
Table 104 – Impulse voltages . 28
Table 105 – Thickness of the test probe of Figure 106 and test voltages. 35
Table D.101 – Insulation requirements for current sensors . 37
Table K.101 – CLEARANCES of measuring circuits RATED for MEASUREMENT CATEGORIES . 40
Table K.102 – a.c. test voltages for testing electric strength of solid insulation in
measuring circuits RATED for MEASUREMENT CATEGORIES . 41
Table K.103 – Impulse test voltages for testing electric strength of solid insulation in
measuring circuits RATED for MEASUREMENT CATEGORIES . 42
Table K.104 –Test voltages for testing long-term stress of solid insulation in measuring
circuits RATED for MEASUREMENT CATEGORIES . 43
Table K.105 – Minimum values for distance or thickness of solid insulation in
measuring circuits RATED FOR MEASUREMENT CATEGORIES III and IV . 44
Table AA.1 – Characteristics of MEASUREMENT CATEGORIES . 48

– 4 – IEC 61010-2-032:2019 © IEC 2019
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,
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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
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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
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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.
This fourth edition cancels and replaces the third edition published in 2012. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) It has been indicated that current sensors used as FIXED EQUIPMENT are not within the
scope of this document.
b) Fork-style current sensors have been added.

c) Requirements from Part 2-033 applicable to CLAMP MULTIMETERS that have a primary
purpose of measuring voltage on live MAINS have been included in the new normative
Annex EE.
LEARANCES and CREEPAGE DISTANCES for measuring circuit TERMINALS exceeding
d) C
1 000 V a.c. or 1 414 V d.c. and for WET LOCATIONS have been specified.
e) Reduced CREEPAGE DISTANCES are allowed to be according to material group I for all
insulating materials.
f) Requirements for input/output circuits of Type A, Type B and Type C current sensors
have been detailed in 6.9.102.
g) Requirements for output circuit leads have been modified.
h) The JAW impact test has been limited to the front of the JAWS.
i) The abrasion test for cords of flexible current sensors has been removed and replaced by
a pressure test at high temperature.
j) The voltage source for testing overvoltage limiting components or circuits may be limited
to 400 V.
k) Reference to IEC 61010-031 for probe assemblies has been added.
l) Requirements for the prevention of TRANSIENT OVERVOLTAGES for MAINS voltage measuring
circuits have been added.
m) Requirements for measuring circuits from 1 000 V to 3 000 V have been added.
TERMINALS has been added.
n) An informative Annex CC about the dimensions of banana
o) A flowchart for insulation according to the type of circuit has been added in a new
Annex DD.
The text of this International Standard is based on the following documents:
FDIS Report on voting
66/691/FDIS 66/695/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document 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.
This Part 2-032 is to be used in conjunction with the latest edition of IEC 61010-1. It was
established on the basis of the third edition (2010) of IEC 61010-1 and its Amendment 1
(2016), hereinafter referred to as Part 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 2-032 states "addition", "modification",
"replacement", or "deletion" the relevant requirement, test specification or note in Part 1
should be adapted accordingly.

– 6 – IEC 61010-2-032:2019 © IEC 2019
In this standard:
a) the fol
lowing print types are used:
– requirements: in roman type;
NOTES: in small roman type;
–
– conformity and tests: 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. Additional annexes are lettered starting from AA and additional list
items are lettered from aa).
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document 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.
The contents of the corrigendum of February 2020 have been included in this copy.

INTRODUCTION
Part 2-030 specifies the safety requirements for equipment with testing and measuring circuits
which are connected for test or measurement purposes to devices or circuits outside the
measurement equipment itself. Requirements of Part 2-030 have been included in this Part 2-
032. Equipment within the scopes of both Part 2-030 and Part 2-032 are considered to be
covered by the requirements of this Part 2-032.
Part 2-033 specifies the safety requirements for hand-held multimeters that have the primary
purpose of measuring voltage on live MAINS. For equipment within the scope of Part 2-032 and
Part 2-033, only this Part 2-032 is applicable.
Part 2-034 specifies the safety requirements for measurement equipment for insulation
resistance and test equipment for electric strength which are connected to units, lines or
circuits for test or measurement purposes. For equipment within the scope of Part 2-032 and
Part 2-034, both documents should be read in conjunction.

– 8 – IEC 61010-2-032:2019 © IEC 2019
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
Replace the existing text with the following:
HAND-HELD and hand-manipulated
This part of IEC 61010 specifies safety requirements for
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 can 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. These current sensors and circuits need additional protective means between the
current sensor, the circuit and an OPERATOR.
NOTE 1 Combined equipment is equipment that is electrically connected to a current sensor by means of a
permanent connection which can be detached only by the use of a TOOL.
NOTE 2 Some current sensors are also known as current clamps, CLAMP MULTIMETERS and current probes.
Current sensors are hand-manipulated before and/or after a test or measurement, but do not
necessarily need to be HAND-HELD during the test or measurement. Current sensors used as
FIXED EQUIPMENT are not within the scope of this document.
The following types of current sensors are covered:
a) Type A: a current sensor designed to be applied to or removed from HAZARDOUS LIVE
UNINSULATED 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 between
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 from HAZARDOUS LIVE UNINSULATED 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 to or removed from insulated conductors
or from limited-energy circuit conductors.

EXAMPLE 3 Current probes for oscilloscopes and earth leakage current detectors.
All current sensors can also be used with insulated conductors. In this case, HAZARDS are
limited to acceptable levels by the insulation of the conductors.
Additional requirements for CLAMP MULTIMETERS are given in Annex EE.
Figure 101 shows graphical representations of typical current sensors for illustration
purposes. Current sensors can look different depending on the design.

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)

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
Add the following three new paragraphs at the end of the subclause:

– 10 – IEC 61010-2-032:2019 © IEC 2019
Requirements for protection against HAZARDS resulting from NORMAL USE and REASONABLY
FORESEEABLE MISUSE of measuring circuits are given in Clause 101.
Requirements for prevention of HAZARD from arc flash and short-circuits are given in
Clause 102.
Requirements for reliance on the displayed value of CLAMP MULTIMETERS are given in
Clause EE.5 .
2 Normative references
This clause of Part 1 is applicable except as follows:
Replace "IEC 61010-031" with the following new reference:
IEC 61010-031:2015, Safety requirements for electrical equipment for measurement, control
and laboratory use – Part 031: Safety requirements for hand-held and hand-manipulated
probe assemblies for electrical test and measurement
IEC 61010-031:2015/AMD1:2018
Replace "IEC 61180-1 (all parts)", "IEC 61180-1" and "IEC 61180-2", with the following new
reference:
IEC 61180, High-voltage test techniques for low-voltage equipment – Definitions, test and
procedure requirements, test equipment
3 Terms and definitions
This clause of Part 1 is applicable except as follows:
3.1 Equipment and states of equipment
Add the following two new terms and definitions:
3.1.101
HAND-HELD
intended to be supported by one hand during NORMAL USE
3.1.102
CLAMP MULTIMETER
HAND-HELD multi-range and multifunction measuring instrument intended to measure current
on a live MAINS without physically opening the conductors, voltage on a live MAINS and other
electrical quantities such as resistance
3.2 Parts and accessories
Add the following two new terms and 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
Replace the definition of 3.5.4 with the following new definition:
3.5.4
MAINS
electricity supply system
Add the following new term and definition:
3.5.101
MEASUREMENT CATEGORY
classification of testing and measuring circuits according to the type of MAINS 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 where 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
Add the following new term and definition:
3.6.101
UNINSULATED CONDUCTOR
conductor 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:
4.3.2.5 MAINS supply
Replace the existing title and text with:
4.3.2.5 Power supply
The following requirements apply.
a) The MAINS supply voltage shall be between 90 % and 110 % of any RATED supply voltage
for which the equipment can be set or, if the equipment is RATED for a greater fluctuation,
at any supply voltage within the fluctuation range.
b) The MAINS frequency shall be any RATED frequency.
c) Equipment for both a.c. and d.c. shall be connected to an a.c. or d.c. supply.
d) Equipment powered by single-phase a.c. MAINS supply shall be connected both with
normal and reverse polarity.
e) If the means of connection permit reversal, battery-operated and d.c. equipment shall be
connected with both reverse and normal polarity.
4.3.2.6 Input and output voltages
Replace the existing title and text with:

– 12 – IEC 61010-2-032:2019 © IEC 2019
4.3.2.6 Input and output voltages or currents
Input and output voltages or currents, including floating voltages but excluding the MAINS
supply voltage, shall be set to any voltage or current within their RATED range, in normal and
reverse polarity if possible.
4.4.2.8 Outputs
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
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, with symbol 101 and symbol 14 of Table 1.
The relevant symbol (14, 101 or 102) shall be marked adjacent to the JAWS or to the marking
of the MEASUREMENT CATEGORY for the JAWS, if present (see 5.1.5.101 and 5.1.5.102).
Table 1 – Symbols
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
5.1.5 TERMINALS, connections and operating devices
Add the following two new subclauses:
TERMINALS
5.1.5.101 Measuring circuit
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
TERMINALS that are intended to be used together shall be marked, and
measuring circuit
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
TERMINAL may have a RATED voltage to earth. For some current sensors, the RATED
individual
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 current sensors), 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.
5.1.5.101.2 Measuring circuit TERMINALS rated for MEASUREMENT CATEGORIES
The relevant MEASUREMENT CATEGORY shall be marked for TERMINALS of measuring circuits
RATED for MEASUREMENT CATEGORIES. The MEASUREMENT CATEGORY markings shall be "CAT II",
"CAT III" or "CAT IV" as applicable.
Marking those TERMINALS with more than one type of MEASUREMENT CATEGORY and its RATED
voltage to earth is permissible.
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 MEASUREMENT CATEGORIES
(see also 5.4.2 bb)).
Conformity is checked by inspection.
5.1.5.101.4 Measuring circuit TERMINALS which are permanently connected, dedicated
or for non-HAZARDOUS LIVE voltages
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 (see also
6.101.3), or
c) it is obvious from other indications that the RATED voltage is below the levels of 6.3.1.

– 14 – IEC 61010-2-032:2019 © IEC 2019
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 30 V a.c.
Conformity is checked by inspection.
5.1.5.102 Voltage and current RATINGS of JAWS
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.
JAWS of Type A, Type B or Type C current sensors RATED for MEASUREMENT CATEGORIES, shall
be marked with the relevant MEASUREMENT CATEGORY adjacent to the voltage to earth marking.
The MEASUREMENT CATEGORY markings 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 on or close to the JAWS. The nature of the
current shall also be marked unless the marked value applies to both a.c. and d.c.
Conformity is checked by inspection.
5.4.1 General
Add the following new items to the list and a new paragraph:
aa) information about each relevant MEASUREMENT CATEGORY if the measuring circuit is
RATED for MEASUREMENT CATEGORIES (see 5.1.5.101.2);
bb) for measuring circuits that are not RATED for MEASUREMENT CATEGORIES, but that could
be misused by connection to such circuits, a warning not to use the current sensor for
measurements on MAINS, and a detailed RATING including TRANSIENT OVERVOLTAGES
(see AA.2.4 for more information).
Some current sensors may have multiple MEASUREMENT CATEGORY RATINGS for the same
measuring circuit. For such current sensors, the documentation shall clearly identify the
MEASUREMENT CATEGORIES where the current sensor is intended to be used and where it shall
not be used.
5.4.2 Equipment RATINGS
Add the following two new items to the list and a new paragraph:
aa) information about each relevant MEASUREMENT CATEGORY if the measuring circuit is
RATED for MEASUREMENT CATEGORIES (see 5.1.5.101.2 and 5.1.5.102);
bb) for Type A, Type B and Type C current sensors that are not RATED for MEASUREMENT
CATEGORIES, but that could be misused by connection to such circuits, a warning not to
use the current sensor for measurements on MAINS, 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 shall not be used.

5.4.3 Equipment installation
Add the following two new items to the list:
aa) for measuring circuit TERMINALS intended for permanent connection and that are RATED
MEASUREMENT CATEGORIES, information regarding the MEASUREMENT CATEGORY,
for
RATED voltages or RATED currents as applicable (see 5.1.5.101.2 and 5.1.5.102);
bb) for measuring circuit TERMINALS intended for permanent connection and that are not
RATED for MEASUREMENT CATEGORIES, information regarding the RATED voltages, RATED
RATED TRANSIENT OVERVOLTAGES as applicable (see 5.1.5.101.4
currents, and
and 5.1.5.102).
5.4.4 Equipment operation
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 current sensor;
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;
j) instructions to de-energise the installation on which the current is measured, or to adopt
HAZARDOUS LIVE installations, during
safe operating procedures when working on
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 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 8.103);
p) a warning to the OPERATOR not to use a current sensor if the wear indicator in the JAW END
is visible (see 8.104);
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.
– 16 – IEC 61010-2-032:2019 © IEC 2019
Conformity is checked by inspection.
6 Protection against electric shock
This clause of Part 1 is applicable except as follows:
6.1.2 Exceptions
Add the following new item to the list:
aa) conductive parts of a JAW END, provided that they meet the requirements of 6.9.101.
6.5.2 PROTECTIVE BONDING
Replace the existing title with the following and delete the text:
6.5.2 Not used
6.6 Connections to external circuits
Add the following two new subclauses:
6.6.101 Measuring circuit TERMINALS
The conductive parts of each unmated measuring circuit TERMINAL which could become
HAZARDOUS LIVE when the highest RATED voltage is applied to other measuring circuit
TERMINALS on the current sensor shall be separated by at least:
a) for TERMINALS with voltage RATING up to 1 000 V a.c. or 1 500 V d.c., the applicable
CLEARANCE and CREEPAGE DISTANCE of Table 101 from the closest approach of the test
finger touching the external parts of the TERMINAL in the least favourable position
(see Figure 1);
b) for TERMINALS with voltage RATING exceeding 1 000 V a.c. or 1 500 V d.c., 2,8 mm for the
CLEARANCE and CREEPAGE DISTANCE from the closest approach of the test finger touching
the external parts of the TERMINAL in the least favourable position. These TERMINALS shall
also withstand the voltage test of 6.8 with a test voltage equal to the RATED voltage of the
TERMINAL multiplied by 1,25 applied between the closest approach of the test finger
touching the external parts of the TERMINAL in the least favourable position and the other
measuring circuit TERMINALS.
EXAMPLE For a 4 000 V a.c. r.m.s. RATED voltage, the test voltage is 5 000 V a.c. r.m.s. (7 070 V peak). The
calculated CLEARANCE is 13,1 mm according to D in Table K.15. For homogeneous fields, a lower CLEARANCE
value can be achieved by testing (see IEC 60664-1 for more information about homogeneous fields).
c) for WET LOCATIONS, there are no CLEARANCE and CREEPAGE DISTANCE requirements for
voltages between 16 V a.c. r.m.s. and 30 V a.c. r.m.s., or between 35 V d.c. and 60 V d.c.,
but conductive parts of unmated measuring circuit TERMINALS shall not be ACCESSIBLE.

Table 101 – CLEARANCES and CREEPAGE DISTANCES for measuring circuit TERMINALS
with HAZARDOUS LIVE conductive parts up to 1 000 V a.c. or 1 500 V d.c.
Voltage on conductive parts of TERMINAL CLEARANCE and CREEPAGE DISTANCE
V a.c. r.m.s. and V d.c. mm
≥ 30 ≤ 300 0,8
> 300 ≤ 600 1,0
> 600 ≤ 1 000 2,6
a
> 1 000 ≤ 1 500 2,8
NOTE The values in this table are not applicable to voltages below HAZARDOUS LIVE voltages (see
6.3.1 a)).
a
Only for d.c. voltage.
Annex CC provides information regarding the recommended dimensions of 4 mm "banana"
TERMINALS.
Conformity is checked by inspection, by the determination
...