CSA C22.2 No. 61010-2-032:20

(IEC 61010-2-032:2019, MOD)

National Standard of Canada Norme nationale du Canada

CSA C22.2 No. 61010-2-032:20

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 61010-2-032:2019, MOD)

CSA C22.2 nº 61010-2-032:20

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

(IEC 61010-2-032:2019, MOD)

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  CSA C22.2 No. 61010-2-032:20

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National Standard of Canada

CSA C22.2 No. 61010-2-032:20

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 61010-2-032:2019, MOD)

Prepared by

International Electrotechnical Commission

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ICS 19.080

ISBN 978-1-4883-3226-5

© 2020 Canadian Standards Association

All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher.

CSA C22.2 No. 61010-2-032:20

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 61010-2-032:2019, MOD)

CSA Preface

This is the fourth edition of CSA C22.2 No. 61010-2-032, 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, which is an adoption, with Canadian deviations, of the identically titled IEC (International Electrotechnical Commission) Standard 61010-2-032 (fourth edition, 2019-06). It supersedes the previous edition published in 2014 as CAN/CSA-C22.2 No. 61010-2-032 (adopted IEC 61010-2-032:2012). It is one in a series of Standards issued by CSA Group under Part II of the Canadian Electrical Code.

For brevity, this Standard will be referred to as “CSA C22.2 No. 61010-2-032” throughout.

This Standard is intended to be used in conjunction with CAN/CSA-C22.2 No. 61010-1:12, Safety requirements for electrical equipment for measurement, control, and laboratory use — Part 1: General requirements (adopted IEC 61010-1:2010, with Canadian and US deviations); and Amendment 1:2018 to CAN/CSA-C22.2 No. 61010-1:12 (adopted IEC Amendment 1:2016, with Canadian and US deviations).

This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard.

This Standard was reviewed for Canadian adoption by the CSA Subcommittee on Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use, under the jurisdiction of the CSA Technical Committee on Consumer and Commercial Products and the CSA Strategic Steering Committee on Requirements for Electrical Safety, and has been formally approved by the Technical Committee.

This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.

Interpretations: The Strategic Steering Committee on Requirements for Electrical Safety has provided the following direction for the interpretations of standards under its jurisdiction: “The literal text shall be used in judging compliance of products with the safety requirements of this Standard. When the literal text cannot be applied to the product, such as for new materials or construction, and when a relevant CSA committee interpretation has not already been published, CSA Group’s procedures for interpretation shall be followed to determine the intended safety principle.”

© 2020 Canadian Standards Association

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– 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

IEC 61010-2-032:2019 © IEC 2019 – 3 –

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

– 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:

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 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:

1. 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.

2. 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.

3. 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.

4. Type D: a current sensor designed to be applied to or removed from insulated conductors or from limited-energy circuit conductors.