IEC 61243-3:2009

IEC 61243-3 ®
Edition 2.0 2009-11
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

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IEC 61243-3 ®
Edition 2.0 2009-11
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
XB
CODE PRIX
ICS 13.260; 29.240.20; 29.260.99 ISBN 978-2-88910-452-9
– 2 – 61243-3 © IEC:2009
CONTENTS
FOREWORD.5
INTRODUCTION.7
1 Scope.8
2 Normative references .8
3 Terms and definitions .10
4 Requirements .13
4.1 General requirements.13
4.1.1 Safety.13
4.1.2 Indication.13
4.1.3 Electromagnetic compatibility (EMC) .14
4.2 Functional requirements .14
4.2.1 Clear indication .14
4.2.2 Clear perceptibility.15
4.2.3 Temperature and humidity dependence of the indication .15
4.2.4 Frequency dependency for a.c. voltage detector.16
4.2.5 Ripple dependency for d.c. voltage detector .16
4.2.6 Response time .16
4.2.7 Power source dependability.16
4.2.8 Testing element.16
4.2.9 Time rating .16
4.3 Electrical requirements.17
4.3.1 Insulating material .17
4.3.2 Protection against electric shocks.17
4.3.3 Current limiting elements.17
4.3.4 Minimum clearance and creepage distances.17
4.3.5 Protection against electrical stresses.20
4.3.6 Lead(s).20
4.3.7 Probes.20
4.3.8 Connector(s) (if any).20
4.3.9 Accessible switches in the detecting circuit for temporary loading (if

any).20
4.4 Mechanical requirements.20
4.4.1 Design.20
4.4.2 Dimensions, construction.22
4.4.3 Degree of protection provided by enclosures .22
4.4.4 Resistance to vibration .22
4.4.5 Drop resistance .22
4.4.6 Shock resistance .22
4.4.7 Possible disassembling .22
4.4.8 Surface temperature.23
4.4.9 Resistance to heat.23
4.4.10 Probes.23
4.4.11 Lead(s).23
4.5 Marking .23
4.5.1 General .23
4.5.2 Marking on the indicator .23

61243-3 © IEC:2009 – 3 –
4.5.3 Marking on the probe and/or the lead .24
4.6 Instructions for use.24
4.7 Requirements in case of reasonably foreseeable misuse during live working.24
4.7.1 AC/DC voltage misuse.24
4.7.2 Maximum current to earth in case of misuse .25
4.7.3 Misuse in case of mistaking of the voltage of the low voltage network .26
5 Tests .26
5.1 General .26
5.2 Tests for general requirements.27
5.2.1 Indication.27
5.2.2 Electromagnetic compatibility (EMC) .27
5.3 Tests for functional requirements .28
5.3.1 Clear indication .28
5.3.2 Clear perceptibility of visual indication.30
5.3.3 Clear perceptibility of audible indication (when available) .32
5.3.4 Temperature and humidity dependence of the indication .34
5.3.5 Frequency dependency for a.c. voltage detector.35
5.3.6 Ripple dependency for d.c. voltage detector .36
5.3.7 Response time .36
5.3.8 Power source dependability.37
5.3.9 Testing element.37
5.3.10 Time rating .37
5.4 Tests for electrical requirements.38
5.4.1 Tests on the insulation .38
5.4.2 Protection against electric shocks.39
5.4.3 Current limiting elements.40
5.4.4 Minimum clearance and creepage distances.40
5.4.5 Protection against electrical stresses.40
5.4.6 Lead(s).41
5.4.7 Probe(s) .41
5.4.8 Connector(s) .41
5.4.9 Switches for temporary loading (if any).41
5.5 Tests for mechanical requirements .42
5.5.1 Design.42
5.5.2 Dimensions, construction.42
5.5.3 Degree of protection provided by enclosures .42
5.5.4 Vibration resistance.42
5.5.5 Drop resistance .
...