prEN IEC 61010-2-032:2022

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

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

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

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

General Information

• Status: Not Published
• Publication Date: 12-May-2024
• ICS: 19.080 - Electrical and electronic testing
• Technical Committee: CLC/TC 66X - Safety of measuring, control, and laboratory equipment
• Drafting Committee: IEC/TC 66 - IEC_TC_66
• Current Stage: 4060 - Enquiry results established and sent to TC, SR, BTTF - Enquiry
• Start Date: 06-Jan-2023
• Completion Date: 06-Jan-2023
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Mandate: M/511 - Mandate to CEN, CENELEC and ETSI relating to harmonised standards in the field of the Low Voltage Directive
• Ref Project: oSIST prEN IEC 61010-2-032:2022 - Safety requirements for electrical equipment for measurement, control and laboratory use - Part 2-032: Particular requirements for hand-held and hand-manipulated current sensors for electrical test and measurement

Relations

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

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN IEC 61010-2-032:2022
01-december-2022
Varnostne zahteve za električno opremo za meritve, nadzor in laboratorijsko
uporabo - 2-032. del: Posebne zahteve za ročne in ročno vodene tokovne senzorje
za električno preskušanje in meritve

Safety requirements for electrical equipment for measurement, control and laboratory

use - Part 2-032: Particular requirements for hand-held and hand-manipulated current

sensors for electrical test and measurement

Sicherheitsbestimmungen für elektrische Mess-, Steuer-, Regel- und Laborgeräte – Teil 2

-032: Besondere Anforderungen für handgehaltene und handbediente Stromsonden für
elektrische Prüfungen und Messungen

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

laboratoire - Partie 2-032 : Exigences particulières pour les capteurs de courant, portatifs

et manipulés manuellement, pour essai électrique et mesurage
Ta slovenski standard je istoveten z: prEN IEC 61010-2-032:2022
ICS:
19.080 Električno in elektronsko Electrical and electronic
preskušanje testing
71.040.10 Kemijski laboratoriji. Chemical laboratories.
Laboratorijska oprema Laboratory equipment
oSIST prEN IEC 61010-2-032:2022 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN IEC 61010-2-032:2022
---------------------- Page: 2 ----------------------
oSIST prEN IEC 61010-2-032:2022
66/768/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61010-2-032 ED5
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2022-10-14 2023-01-06
SUPERSEDES DOCUMENTS:
66/762/RR
IEC TC 66 : SAFETY OF MEASURING, CONTROL AND LABORATORY EQUIPMENT
SECRETARIAT: SECRETARY:
United Kingdom Ms Stephanie Lavy
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY

SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING

Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.

Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of

which they are aware and to provide supporting documentation.
TITLE:

Safety requirements for electrical equipment for measurement, control and laboratory use -

Part 2-032: Particular requirements for hand-held and hand-manipulated current sensors for

electrical test and measurement
PROPOSED STABILITY DATE: 2025
NOTE FROM TC/SC OFFICERS:

Copyright © 2022 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to

download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National

Committee positions. You may not copy or "mirror" the file or printed version of the document, or any part of it, for

any other purpose without permission in writing from IEC.
---------------------- Page: 3 ----------------------
oSIST prEN IEC 61010-2-032:2022
IEC CDV 61010-2-032 © IEC 2022 2 66/768/CDV
1 CONTENTS

2 CONTENTS .......................................................................................................................... 2

3 FOREWORD......................................................................................................................... 4

4 INTRODUCTION ................................................................................................................... 7

5 1 Scope and object ........................................................................................................... 8

6 2 Normative references .................................................................................................. 11

7 3 Terms and definitions .................................................................................................. 12

8 4 Tests ........................................................................................................................... 13

9 5 Marking, documentation and indicator .......................................................................... 14

10 6 Protection against electric shock .................................................................................. 17

11 7 Protection against mechanical HAZARDS ........................................................................ 25

12 8 Resistance to mechanical stresses ............................................................................... 25

13 9 Protection against the spread of fire and arc flash ........................................................ 32

14 10 Equipment temperature limits and resistance to heat .................................................... 38

15 11 Protection against HAZARDS from fluids and solid foreign objects ................................... 39

16 12 Protection against radiation, including laser sources, and against sonic and

17 ultrasonic pressure ...................................................................................................... 39

18 13 Protection against liberated gases and substances, explosion and implosion ................ 39

19 14 Components and subassemblies .................................................................................. 39

20 15 Protection by interlocks ................................................................................................ 40

21 16 HAZARDS resulting from application .............................................................................. 40

22 17 RISK assessment ......................................................................................................... 40

23 101 Measuring circuits ....................................................................................................... 40

24 Annexes ............................................................................................................................. 43

25 Annex D (normative) Parts between which insulation requirements are specified (see

26 6.4, 6.5.3 and 6.101) ................................................................................................... 43

27 Annex F (normative) Routine tests ..................................................................................... 45

28 Annex K (normative) Insulation requirements not covered by 6.7 ........................................ 46

29 Annex L (informative) Index of defined terms ...................................................................... 58

30 Annex AA (normative) MEASUREMENT CATEGORIES ............................................................... 59

31 Annex BB (informative) HAZARDS pertaining to measurements performed in certain

32 environments ............................................................................................................... 62

33 Annex CC (informative) 4 mm "banana" TERMINALS ............................................................. 65

34 Annex DD (informative) Flowchart for insulation according to the type of circuit ................... 67

35 Annex EE (informative) Determination of CLEARANCES for Table 101 .................................... 70

36 Annex FF (normative) CLAMP MULTIMETER ........................................................................... 71

37 Bibliography ....................................................................................................................... 73

39 Figure 101 – Examples of current sensors and their parts .................................................... 10

40 Figure 4 – Acceptable arrangement of protective means against electric shock .................... 18

41 Figure 102 – CLEARANCE between the PROTECTIVE FINGERGUARD to the JAWS and to the

42 HAZARDOUS LIVE conductor ................................................................................................... 23

43 Figure 103 – Abrasion test of the JAW ENDS ......................................................................... 26

44 Figure 104 – Impact points for JAW impact test .................................................................... 27

---------------------- Page: 4 ----------------------
oSIST prEN IEC 61010-2-032:2022
IEC CDV 61010-2-032 © IEC 2022 3 66/768/CDV

45 Figure 105 – Indentation device .......................................................................................... 28

46 Figure 106 – Example of a current sensor with strain reliefs................................................. 30

47 Figure 107 – Flexing test .................................................................................................... 31

48 Figure 108 – Test probe to check protection against short-circuits ....................................... 37

49 Figure 109 - Use of the test probe of Figure 108 .................................................................. 37

50 Figure D.101 – Parts of current sensors (see also Table D.101) ........................................... 43

51 Figure K.101 – CLEARANCES between the conductor, the input/output circuit and the

52 enclosure of a Type A current sensor .................................................................................. 50

53 Figure K.102 – Test circuit for evaluation of TRANSIENT OVERVOLTAGE attenuation ................. 52

54 Figure AA.1 – Example to identify the locations of MEASUREMENT CATEGORIES ....................... 60

55 Figure CC.1 – Recommended dimensions of 4 mm TERMINALS ............................................. 66

56 Figure DD.1 – Requirements for CLEARANCE, CREEPAGE DISTANCE and solid insulation ........... 69

57 Figure FF.1 – Examples of CLAMP MULTIMETERS ................................................................... 71

59 Table 1 – Symbols .............................................................................................................. 14

60 Table 101 – CLEARANCES for unmated measuring circuit TERMINALS ...................................... 19

61 Table 102 – Energy level for JAW impact test ....................................................................... 26

62 Table 103 – Pull forces for endcaps of flexible current sensors ............................................ 29

63 Table 104 – Pull forces for input/output lead attachment test ............................................... 32

64 Table 105 – Thickness of the test probe of Figure 108 and test voltages .............................. 38

65 Table D.101 – Insulation requirements for current sensors ................................................... 44

66 Table K.15 – CLEARANCE values for the calculation of K.3.2 ................................................. 47

67 Table K.16 – Test voltages based on CLEARANCES ............................................................... 48

68 Table K.101 - Impulse voltages for circuits connected to MAINS ............................................ 52

69 Table K.102 - CLEARANCES for measuring circuits RATED for MEASUREMENT CATEGORIES ......... 53

70 Table K.103 – Impulse test voltages for testing electric strength of solid insulation for

71 measuring circuits RATED for MEASUREMENT CATEGORIES ....................................................... 54

72 Table K.104 – a.c. test voltages for testing electric strength of solid insulation for

73 measuring circuits RATED for MEASUREMENT CATEGORIES ....................................................... 55

74 Table K.105 – Minimum values for distance or thickness of solid insulation for

75 measuring circuits RATED for MEASUREMENT CATEGORIES ....................................................... 56

76 Table AA.1 – Characteristics of MEASUREMENT CATEGORIES .................................................. 61

77 Table EE.1 – CLEARANCES values for Table 101 ................................................................... 70

---------------------- Page: 5 ----------------------
oSIST prEN IEC 61010-2-032:2022
IEC CDV 61010-2-032 © IEC 2022 4 66/768/CDV
79 INTERNATIONAL ELECTROTECHNICAL COMMISSION
80 ____________
82 SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT
83 FOR MEASUREMENT, CONTROL, AND LABORATORY USE –
85 Part 2-032: Particular requirements for hand-held and
86 hand-manipulated current sensors for electrical test and measurement
88 FOREWORD

89 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

90 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international

91 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and

92 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,

93 Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their

94 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with

95 may participate in this preparatory work. International, governmental and non-governmental organizations liaising

96 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for

97 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.

98 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

99 consensus of opinion on the relevant subjects since each technical committee has representation from all

100 interested IEC National Committees.

101 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

102 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

103 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

104 misinterpretation by any end user.

105 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

106 transparently to the maximum extent possible in their national and regional publications. Any divergence between

107 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.

108 5) IEC itself does not provide any attestation of conformity. Independent certificati on bodies provide conformity

109 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

110 services carried out by independent certification bodies.

111 6) All users should ensure that they have the latest edition of this publication.

112 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

113 members of its technical committees and IEC National Committees for any personal injury, property damage or

114 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

115 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

116 Publications.

117 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

118 indispensable for the correct application of this publication.

119 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent

120 rights. IEC shall not be held responsible for identifying any or all such patent rights.

121 IEC 61010-2-032 has been prepared by IEC technical committee 66: Safety of measuring,

122 control and laboratory equipment.

123 It has the status of a group safety publication in accordance with IEC Guide 104.

124 This fifth edition cancels and replaces the fourth edition published in 2019. This edition

125 constitutes a technical revision.
---------------------- Page: 6 ----------------------
oSIST prEN IEC 61010-2-032:2022
IEC CDV 61010-2-032 © IEC 2022 5 66/768/CDV

126 This edition includes the following significant technical changes with respect to the previous

127 edition:

Clause 2 All normative references have been dated and new normative references have been added.

3.2.103 A new definition PROTECTIVE FINGERGUARD has been added to replace PROTECTIVE BARRIER

4.4.2.101 Addition of a new subclause about surge protective devices.
5.1.5.101.2 Minimum RATINGS for voltage of measuring TERMINALS are required.
6.5.1 The subclause has been modified
6.5.5 The subclause is no more used

6.6.101.1 Insulating material of group I may be allowed for determination of CLEARANCES of measuring

circuit TERMINALS.

6.6.101.2 CLEARANCES and CREEPAGE DISTANCES above 1 000 V a.c. and 1 500 V d.c. for measuring circuit

TERMINALS in unmated position have been defined.

6.6.101.3 Requirements for measuring circuit TERMINALS in partially mated position have been specified.

6.6.101.4 Requirements for measuring circuit TERMINALS in mated position have been specified.

6.6.102 This subclause replaces 6.6.101
6.101 This subclause replaces 6.9.101 of previous edition and has been modified.
6.102 The subclause replaces 6.9.102 of previous edition and has been modified.
8.101 JAW ENDS abrasion test has been modified.
8.105 A new subclause for input/output leads attachment has been added
9.101.2 Relocation of 101.3 of previous edition.

9.101.3 Relocation of 101.4 of previous edition, extension to MEASUREMENT CATEGORY II and reference

to IEC 61000-4-5 for tests. Table 102 has been replaced by Table K.101.
9.102 Relocation of 102 of previous edition.
14.101 Relocation of 14.102. 14.101 of previous edition has been deleted.

101.3 New subclause for protections against HAZARD occurring from reading a voltage value in

replacement of EE.5 of previous edition.

Table D.101 Transients are disregarded for insulation between JAW ENDS and input/output circuits.

F.101 Tests voltage for routine test of JAWS have been modified.

K.2.1 Another method for determination of CLEARANCES of secondary circuits is proposed.

K.3.2 New Table K.15 and Table K.16 for CLEARANCE calculation.
K.3.101 New clause

Clause K.4 Redraft of the clause to propose a method for determination of U for circuits which reduce

TRANSIENT OVERVOLTAGES.
Table K.101 replaces Table K.106.

K.101.4 The subclause has been reviewed. Tables and tests for solid insulation have been modified.

Table K.104 of previous edition has been deleted.
Annex AA Figure AA.1 has been redesigned.

Annex EE Addition of a new informative annex for determination of CLEARANCES for Table 101.

Annex FF This Annex was Annex EE of previous edition.
The current sensor type of a CLAMP MULTIMETER is type A or type B.
128
129 The text of this International Standard is based on the following documents:
FDIS Report on voting
66/xxx/FDIS 66/xxx/RVD
130

131 Full information on the voting for the approval of this International Standard can be found in the

132 report on voting indicated in the above table.
---------------------- Page: 7 ----------------------
oSIST prEN IEC 61010-2-032:2022
IEC CDV 61010-2-032 © IEC 2022 6 66/768/CDV

133 This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

134 A list of all parts of the IEC 61010 series, under the general title Safety requirements for

135 electrical equipment for measurement, control, and laboratory use, can be found on the IEC

136 website.

137 The language used for the development of this International Standard is English.

138 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in

139 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available

140 at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are

141 described in greater detail at www.iec.ch/publications.

142 A list of all parts of the IEC 61010 series, under the general title Safety requirements for

143 electrical equipment for measurement, control, and laboratory use, can be found on the IEC

144 website.
145 This Part 2-032 is to be used in conjunction with IEC 61010-1:2010 and

146 IEC 61010-1:2010/AMD1:2016. It was established on the basis of the third edition (2010) of

147 IEC 61010-1, including its amendment 1 (2016) and its corrigendum 1 (2019), hereinafter

148 referred to as Part 1.

149 This Part 2-032 supplements or modifies the corresponding clauses in IEC 61010-1 so as to

150 convert that publication into the IEC standard: Particular requirements for hand-held and hand-

151 manipulated current sensors for electrical test and measurement.

152 Where a particular subclause of Part 1 is not mentioned in this Part 2-032, that subclause

153 applies as far as is reasonable. Where this part states “addition”, “modification”, “replacement”,

154 or “deletion” the relevant requirement, test specification or note in Part 1 should be adapted

155 accordingly.
156 In this standard:
157 a) the following print types are used:
158 – requirements: in roman type;
159 – NOTES: in small roman type;
160 – conformity and tests: in italic type;

161 – terms used throughout this standard which have been defined in Clause 3: SMALL ROMAN

162 CAPITALS;

163 b) subclauses, figures, tables and notes which are additional to those in Part 1 are numbered

164 starting from 101. Additional annexes are lettered starting from AA and additional list items

165 are lettered from aa).

166 The committee has decided that the contents of this document will remain unchanged until the

167 stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

168 the specific document. At this date, the document will be
169 • reconfirmed,
170 • withdrawn,
171 • replaced by a revised edition, or
172 • amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct understanding

of its contents. Users should therefore print this document using a colour printer.

173
---------------------- Page: 8 ----------------------
oSIST prEN IEC 61010-2-032:2022
IEC CDV 61010-2-032 © IEC 2022 7 66/768/CDV
174 INTRODUCTION

175 IEC 61010-1 specifies the safety requirements that are generally applicable to all equipment

176 within its scope. For certain types of equipment, the requirements of IEC 61010-1 and its

177 amendment will be supplemented or modified by the special requirements of one, or more than

178 one, particular Part 2 which are read in conjunction with the Part 1 requirements.

179 1) Part 2-030 specifies the safety requirements for equipment with testing or measuring

180 circuits which are connected for test or measurement purposes to devices or circuits outside

181 the measurement equipment itself.

182 2) Part 2-032 specifies the safety requirements for hand-held and hand-manipulated current

183 sensors for measuring, detecting or injecting current, or indicating current waveforms on

184 circuits without physically opening the current path of the circuit being measured.

185 Most of the requirements of Part 2-030 have been included into Part 2-032. Equipment

186 within the scopes of both Part 2-030 and Part 2-032 are considered to be covered by the

187 requirements of Part 2-032.

188 However, for current sensor in combined equipment with protective bonding and automatic

189 disconnection of the supply, Part 2-030 and Part 2-032 are read in conjunction

190 3) Part 2-033 specifies the safety requirements for hand-held multimeters and other meters for

191 domestic and professional use, capable of measuring mains voltage, intended to measure

192 voltage and other electrical quantities such as resistance or current.
193 All relevant requirements of Part 2-030 have been included into Part 2-033.

194 4) Part 2-034 specifies the safety requirements for measurement equipment for insulation

195 resistance and test equipment for electric strength which are connected to units, lines or

196 circuits for test or measurement purposes.

197 All relevant requirements of Part 2-030 have been included into Part 2-034. However, for

198 equipment within the scope of Part 2-032 and Part 034, these standards are read in

199 conjunction.

200 IEC 61010-031 specifies the safety requirements for hand-held and hand-manipulated probe

201 assemblies and their related accessories intended to be used in particular with equipment in

202 the scope of Part 2-030, Part 2-032, Part 2-033 and Part 2-034. These probe assemblies are

203 for non-contact or direct electrical connection between a part and electrical test and

204 measurement equipment. They may be fixed to the equipment or be detachable accessories for

205 the equipment.
206
---------------------- Page: 9 ----------------------
oSIST prEN IEC 61010-2-032:2022
IEC CDV 61010-2-032 © IEC 2022 8 66/768/CDV
207 SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT
208 FOR MEASUREMENT, CONTROL, AND LABORATORY USE –
209
210 Part 2-032: Particular requirements for hand-held and
211 hand-manipulated current sensors for electrical test and measurement
212
213
214
215 1 Scope and object

216 IEC 61010-1:2010, Clause 1 and IEC 61010-1:2010/AMD1:2016, Clause 1 apply except as

217 follows:
218 1.1.1 Equipment included in scope
219 Replace the existing text with the following:

220 This group safety publication is primarily intended to be used as a product safety standard for

221 the products mentioned in the scope, but shall also be used by technical committees in the

222 preparation of their publications for products similar to those mentioned in the scope of this

223 document, in accordance with the principles laid down in IEC Guide 104 and lSO/lEC Guide 51.

224 This part of IEC 61010 specifies safety requirements for HAND-HELD and hand-manipulated

225 current sensors described below.

226 These current sensors are for measuring, detecting or injecting current, or indicating current

227 waveforms on circuits without physically opening the current path of the circuit being measured.

228 They can be stand-alone current sensors or accessories to other equipment or parts of

229 combined equipment (see Figure 101). These include measurement circuits which are part of

230 electrical test and measurement equipment, laboratory equipment, or process control

231 equipment. These current sensors and circuits need additional protective means between the

232 current sensor, the circuit and an OPERATOR.

233 NOTE 1 Combined equipment is equipment that is electrically connected to a current sensor by means of a

234 permanent connection which can be detached only by the use of a TOOL.

235 NOTE 2 Some current sensors are also known as current clamps, CLAMP MULTIMETERS and current probes.

236 Current sensors are hand-manipulated before and/or after a test or measurement, but do not

237 necessarily need to be HAND-HELD during the test or measurement. Current sensors used as

238 FIXED EQUIPMENT are not within the scope of this document.
239 The following types of current sensors are covered:

240 a) Type A: a current sensor designed to be applied to or removed from HAZARDOUS LIVE

241 UNINSULATED CONDUCTORS. Type A current sensors have defined HAND-HELD or hand-

242 manipulated parts providing protection against electric shock from the conductor being

243 measured, and also have protection against short-circuits between wires and between

244 busbars during clamping.

245 b) Type B: a current sensor which has protection against short-circuits between wires or

246 busbars during clamping but without defined HAND-HELD or hand-manipulated parts which

247 provide protection against electric shock during clamping. Additional protective means are

248 necessary to avoid electric shock from HAZARDOUS LIVE conductors which cannot be de-

249 energised during application or removal of the current sensor.
250 EXAMPLE 1 Flexible current sensors.

251 c) Type C: a current sensor without protection against short-circuits between wires or busbars

252 during clamping. Type C current sensors are intended to be applied to or removed from

---------------------- Page: 10 ----------------------
oSIST prEN IEC 61010-2-032:2022
IEC CDV 61010-2-032 © IEC 2022 9 66/768/CDV

253 HAZARDOUS LIVE UNINSULATED CONDUCTORS or from non-limited-energy circuit conductors

254 only when they are de-energised.
255 EXAMPLE 2 Split-core transducers.

256 d) Type D: a current sensor designed to be applied to or removed from insulated conductors

257 or from limited-energy circuit conductors.

258 EXAMPLE 3 Current probes for oscilloscopes and earth leakage current detectors.

259 Type A, Type B and Type C current sensors can also be applied to or removed from insulated

260 conductors. In this case, HAZARDS are limited to acceptable levels by the insulation of the

261 conductors.
262 Additional requirements for CLAMP MULTIMETERS are given in Annex FF.

263 Figure 101 shows graphical representations of typical current sensors for illustration purposes.

264 Current sensors can look different depending on the design.
---------------------- Page: 11 ----------------------
oSIST prEN IEC 61010-2-032:2022
IEC CDV 61010-2-032 © IEC 20
...