Live working - Voltage detectors - Part 3: Two-pole low-voltage type

IEC 61243-3:2014 is applicable to hand-held two-pole voltage detectors with their accessories (crocodile clips and detachable leads) to be used in contact with parts of electrical systems for a.c. voltages not exceeding 1 000 V at nominal frequencies between 16 2/3 Hz and up to 500 Hz, and/or for d.c. voltages not exceeding 1 500 V. Contact electrode extensions are not covered by this standard. Voltage detectors covered by this standard are intended to be used under dry and humid conditions, both indoor and outdoor. They are not intended to be used under rain conditions. Voltage detectors covered by this standard are not intended to be used for continuous operation. Voltage detectors covered by this standard are intended to be used up to 2 000 m above sea level. This standard also includes provisions for the following supplementary functions when available:
- phase indication;
- rotating field indication;
- and continuity check. Other supplementary functions are not covered by this standard. Voltage detectors covered by this standard are not considered as measuring devices. Relevant safety requirements for measuring devices are included in IEC 61010 series. This third edition cancels and replaces the second edition published in 2009. It is a technical revision which includes the following significant technical changes with respect to the previous edition:
- requirement and test to manage interference voltages at power frequencies;
- and informative annex on voltage detectors and the presence of interference voltages.
The contents of the corrigendum of January 2015 and May 2015 have been included in this copy.

Travaux sous tension - Détecteurs de tension - Partie 3: Type bipolaire basse tension

L'IEC 61243-3:2014 concerne les détecteurs de tension portatifs bipolaires ainsi que leurs accessoires (les pinces crocodiles et les cordons détachables) pour un usage au contact avec des pièces d'installations électriques à des tensions alternatives n'excédant pas 1 000 V à des fréquences nominales comprises entre 16 2/3 Hz et 500 Hz, et/ou à des tensions continues n'excédant pas 1 500 V. Les rallonges d'électrode de contact ne sont pas couvertes par la présente norme. Les détecteurs de tension couverts par la présente norme sont prévus pour une utilisation sous des conditions sèches et humides, à l'intérieur et à l'extérieur. Ils ne sont pas prévus pour une utilisation en conditions de pluie. Les détecteurs de tension couverts par la présente norme ne sont pas prévus pour un fonctionnement en continu. Les détecteurs de tension couverts par la présente norme sont prévus pour une utilisation à une altitude allant jusqu'à 2 000 m au-dessus du niveau de la mer. La présente norme inclut aussi des dispositions pour les fonctions supplémentaires suivantes, lorsqu'elles existent:
- l'indication de phase;
- l'indication de la rotation de phase;
- et le contrôle de continuité. Les autres fonctions supplémentaires ne sont pas couvertes par la présente norme. Les détecteurs de tension couverts par la présente norme ne sont pas considérés comme des instruments de mesure. Les exigences de sécurité relatives aux instruments de mesure sont incluses dans la série de normes IEC 61010. Cette troisième édition annule et remplace la deuxième édition publiée en 2009. Elle constitue une révision technique qui inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- exigence et essai pour la gestion des tensions perturbatrices aux fréquences industrielles;
- et l'annexe informative sur les détecteurs de tension et présence de tension perturbatrices.
Le contenu des corrigendas de janvier 2015 et mai 2015 a été pris en considération dans cet exemplaire.

General Information

Status
Published
Publication Date
08-Oct-2014
Technical Committee
Current Stage
PPUB - Publication issued
Start Date
09-Oct-2014
Completion Date
09-Oct-2014
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IEC 61243-3
Edition 3.0 2014-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Live working – Voltage detectors –
Part 3: Two-pole low-voltage type
Travaux sous tension – Détecteurs de tension –
Partie 3: Type bipolaire basse tension
IEC 61243-3:2014-10(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 61243-3
Edition 3.0 2014-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Live working – Voltage detectors –
Part 3: Two-pole low-voltage type
Travaux sous tension – Détecteurs de tension –
Partie 3: Type bipolaire basse tension
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XC
ICS 13.260, 29.240.20, 29.260.99 ISBN 978-2-8322-1882-2

Warning! Make sure that you obtained this publication from an authorized distributor.

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® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 61243-3:2014  IEC 2014
CONTENTS

FOREWORD......................................................................................................................... 6

INTRODUCTION ................................................................................................................... 8

1 Scope ............................................................................................................................ 9

2 Normative references .................................................................................................... 9

3 Terms and definitions .................................................................................................. 11

4 Requirements .............................................................................................................. 14

4.1 General requirements .......................................................................................... 14

4.1.1 Safety .......................................................................................................... 14

4.1.2 Indication ..................................................................................................... 15

4.1.3 Electromagnetic compatibility (EMC) ............................................................ 15

4.2 Functional requirements ...................................................................................... 15

4.2.1 Clear indication ............................................................................................ 15

4.2.2 Clear perceptibility ....................................................................................... 16

4.2.3 Temperature and humidity dependence of the indication ............................... 17

4.2.4 Frequency dependency for a.c. voltage detector ........................................... 17

4.2.5 Ripple dependency for d.c. voltage detector ................................................. 17

4.2.6 Response time ............................................................................................. 17

4.2.7 Power source dependability .......................................................................... 17

4.2.8 Testing element ........................................................................................... 18

4.2.9 Time rating .................................................................................................. 18

4.3 Electrical requirements ........................................................................................ 18

4.3.1 Insulating material ........................................................................................ 18

4.3.2 Protection against electric shocks ................................................................. 18

4.3.3 Current limiting elements .............................................................................. 19

4.3.4 Minimum clearance and creepage distances ................................................. 19

4.3.5 Protection against electrical stresses ............................................................ 21

4.3.6 Lead(s) ........................................................................................................ 21

4.3.7 Probes ......................................................................................................... 22

4.3.8 Connector(s) (if any) .................................................................................... 22

4.3.9 Accessible switches in the detecting circuit for temporary loading (if

any) ............................................................................................................. 22

4.4 Mechanical requirements ..................................................................................... 22

4.4.1 Design ......................................................................................................... 22

4.4.2 Dimensions, construction ............................................................................. 24

4.4.3 Degree of protection provided by enclosures ................................................ 24

4.4.4 Resistance to vibration ................................................................................. 24

4.4.5 Drop resistance ............................................................................................ 24

4.4.6 Shock resistance.......................................................................................... 24

4.4.7 Possible disassembling ................................................................................ 24

4.4.8 Surface temperature .................................................................................... 25

4.4.9 Resistance to heat ....................................................................................... 25

4.4.10 Probes ......................................................................................................... 25

4.4.11 Lead(s) ........................................................................................................ 25

4.5 Marking ............................................................................................................... 25

4.5.1 General ....................................................................................................... 25

4.5.2 Marking on the indicator ............................................................................... 25

---------------------- Page: 4 ----------------------
IEC 61243-3:2014  IEC 2014 – 3 –

4.5.3 Marking on the probe and/or the lead ........................................................... 26

4.6 Instructions for use .............................................................................................. 26

4.7 Requirements in case of reasonably foreseeable misuse during live working ........ 27

4.7.1 AC/DC voltage misuse ................................................................................. 27

4.7.2 Maximum current to earth in case of misuse ................................................. 27

4.7.3 Misuse in case of mistaking of the voltage of the low voltage network ........... 28

5 Tests ........................................................................................................................... 28

5.1 General ............................................................................................................... 28

5.2 Tests for general requirements ............................................................................ 29

5.2.1 Indication ..................................................................................................... 29

5.2.2 Electromagnetic compatibility (EMC) ............................................................ 29

5.3 Tests for functional requirements ......................................................................... 30

5.3.1 Clear indication ............................................................................................ 30

5.3.2 Clear perceptibility of visual indication .......................................................... 33

5.3.3 Clear perceptibility of audible indication (when available) .............................. 35

5.3.4 Temperature and humidity dependence of the indication ............................... 37

5.3.5 Frequency dependency for a.c. voltage detector ........................................... 38

5.3.6 Ripple dependency for d.c. voltage detector ................................................. 39

5.3.7 Response time ............................................................................................. 39

5.3.8 Power source dependability .......................................................................... 40

5.3.9 Testing element ........................................................................................... 40

5.3.10 Time rating .................................................................................................. 40

5.4 Tests for electrical requirements .......................................................................... 41

5.4.1 Tests on the insulation ................................................................................. 41

5.4.2 Protection against electric shocks ................................................................. 42

5.4.3 Current limiting elements .............................................................................. 43

5.4.4 Minimum clearance and creepage distances ................................................. 43

5.4.5 Protection against electrical stresses ............................................................ 43

5.4.6 Lead(s) ........................................................................................................ 44

5.4.7 Probe(s) ...................................................................................................... 44

5.4.8 Connector(s) ................................................................................................ 44

5.4.9 Switches for temporary loading (if any) ......................................................... 44

5.5 Tests for mechanical requirements ...................................................................... 45

5.5.1 Design ......................................................................................................... 45

5.5.2 Dimensions, construction ............................................................................. 45

5.5.3 Degree of protection provided by enclosures ................................................ 45

5.5.4 Vibration resistance ..................................................................................... 45

5.5.5 Drop resistance ............................................................................................ 46

5.5.6 Shock resistance.......................................................................................... 47

5.5.7 Possible disassembling ................................................................................ 47

5.5.8 Surface temperature .................................................................................... 47

5.5.9 Heat resistance ............................................................................................ 48

5.5.10 Probes ......................................................................................................... 48

5.5.11 Lead(s) ........................................................................................................ 50

5.6 Marking ............................................................................................................... 51

5.6.1 Visual inspection and measurement ............................................................. 51

5.6.2 Durability of marking .................................................................................... 51

5.7 Instructions for use .............................................................................................. 52

5.7.1 Type test ..................................................................................................... 52

---------------------- Page: 5 ----------------------
– 4 – IEC 61243-3:2014  IEC 2014
5.7.2 Alternative test in case of voltage detectors having completed the

production phase ......................................................................................... 52

5.8 Tests for reasonably foreseeable misuse during live working ................................ 52

5.8.1 AC/DC voltage misuse ................................................................................. 52

5.8.2 Maximum current to earth in case of misuse ................................................. 52

5.8.3 Misuse in case of mistaking of the voltage of the low voltage network ........... 53

6 Conformity testing ....................................................................................................... 53

7 Modifications ............................................................................................................... 53

Annex A (informative) Differences with IEC 61010 series .................................................... 54

A.1 Existing requirements and tests but with different sanctions or pass test

criteria ................................................................................................................ 54

A.2 List of requirements of IEC 61010 series not included in this standard, with

rationale ............................................................................................................. 56

A.3 Additional requirements of this standard, related to safety and functional

safety of voltage detectors, with rationale ............................................................ 57

Annex B (normative) Supplementary functions: Phase indication – Rotating field

indication – Continuity check ............................................................................................... 59

B.1 Terms and definitions .......................................................................................... 59

B.2 General requirements for the supplementary functions ......................................... 59

B.2.1 Safety and performance of the voltage detector ............................................ 59

B.2.2 Indication ..................................................................................................... 59

B.2.3 Indication only in contact with bare part ........................................................ 59

B.2.4 Temperature rise.......................................................................................... 59

B.2.5 Instructions for use ...................................................................................... 59

B.3 General tests for the supplementary functions ..................................................... 60

B.3.1 Safety and performance of the voltage detector ............................................ 60

B.3.2 Indication ..................................................................................................... 60

B.3.3 Indication only in contact with bare part ........................................................ 60

B.3.4 Temperature rise test ................................................................................... 60

B.3.5 Instructions for use ...................................................................................... 60

B.4 Phase indication with or without the use of accessible electrode .......................... 61

B.4.1 General ....................................................................................................... 61

B.4.2 Additional requirements ................................................................................ 61

B.4.3 Additional tests ............................................................................................ 61

B.5 Rotating field indication ....................................................................................... 62

B.5.1 Additional requirements ................................................................................ 62

B.5.2 Additional tests ............................................................................................ 62

B.6 Continuity check.................................................................................................. 63

B.6.1 Additional requirements ................................................................................ 63

B.6.2 Additional tests ............................................................................................ 63

B.7 Classification of defects and associated requirements and tests ........................... 64

Annex C (normative) Instructions for use ............................................................................ 65

C.1 General ............................................................................................................... 65

C.2 Safety advices .................................................................................................... 66

Annex D (normative) General type test procedure ............................................................... 67

Annex E (normative) Classification of defects and associated requirements and tests ......... 69

Annex F (informative) In-service care and use .................................................................... 71

F.1 Use and storage .................................................................................................. 71

F.2 Inspection before use .......................................................................................... 71

---------------------- Page: 6 ----------------------
IEC 61243-3:2014  IEC 2014 – 5 –

F.3 Maintenance ....................................................................................................... 71

F.3.1 Regular maintenance ................................................................................... 71

F.3.2 Periodic maintenance ................................................................................... 72

F.3.3 Periodic testing ............................................................................................ 72

Annex G (informative) Voltage detectors and the presence of interference voltages ............ 73

G.1 General ............................................................................................................... 73

G.2 Voltage detectors with the capability of suppressing or reducing significantly

the level of interference voltages – relatively low internal impedance (<

100 kΩ) ............................................................................................................... 73

G.3 Voltage detectors with the capability of discriminating an operating voltage

from an interference voltage ................................................................................ 73

G.4 Voltage detectors with no capability of suppressing or reducing significantly

the level of interference voltages – relatively high internal impedance (> 100

kΩ) ..................................................................................................................... 74

Bibliography ....................................................................................................................... 75

Figure 1 – Illustration of the electrical insulation features applicable to components of

a voltage detector ............................................................................................................... 20

Figure 2 – Voltage detector ................................................................................................. 23

Figure 3 – Maximum rms a.c. current to earth in case of misuse .......................................... 27

Figure 4 – Maximum d.c. current to earth in case of misuse ................................................. 28

Figure 5 – Test set-up for the performance of a voltage detector claiming to be able to

distinguish an operating voltage from an interference voltage .............................................. 32

Figure 6 – Test set-up for measurement of clear perceptibility of visual indication ................ 34

Figure 7 – Test set-up for measurement of clear perceptibility of audible indication .............. 36

Figure 8 – Test set-up for close adhesion of insulation of the insulated part of the

contact electrode ................................................................................................................ 49

Table 1 – Climatic categories of voltage detectors ............................................................... 17

Table 2 – Minimum clearance distances for basic insulation and for supplementary

insulation ............................................................................................................................ 20

Table 3 – Minimum clearance distances for reinforced insulation ......................................... 21

Table 4 – Parameters to be observed to check the climatic dependence .............................. 37

Table 5 – AC voltage values for test on the complete equipment .......................................... 42

Table 6 – Maximum permissible surface temperatures ......................................................... 48

Table B.1 – Classification of defects and associated requirements and tests ........................ 64

Table D.1 – Sequential order for performing type tests ........................................................ 67

Table D.2 – Type tests out of sequence ............................................................................... 68

Table E.1 – Classification of defects and associated requirements and tests ........................ 69

Table F.1 – Periodic testing ................................................................................................ 72

---------------------- Page: 7 ----------------------
– 6 – IEC 61243-3:2014  IEC 2014
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LIVE WORKING –
VOLTAGE DETECTORS –
Part 3: Two-pole low-voltage type
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