Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 17: Non-contact AC voltage indicators

IEC 61557-17:2021 defines minimum performance requirements for non-contact AC voltage indicators to reduce the risk of electric shock for the testing person and bystanders caused by the wrong interpretation of the indication.
Products designed and manufactured in accordance with this document are for use by (electrically) skilled persons only. Non-contact AC voltage indicators are not designed for testing the absence of the operating voltage.
This International Standard is to be used in conjunction with IEC 61557-1:2019.

Sécurité électrique dans les réseaux de distribution basse tension au plus égale à 1 000 V C.A. et 1 500 V C.C. - Dispositifs de contrôle, de mesure ou de surveillance de mesures de protection - Partie 17: Indicateurs de tension alternative sans contact

IEC 61557-17:2021 définit les exigences minimales de qualités de fonctionnement relatives aux indicateurs de tension alternative sans contact afin de réduire le risque de choc électrique encouru par la personne qui effectue l’essai et les personnes au voisinage et occasionné par une mauvaise interprétation de l'indication.
Les produits conçus et fabriqués conformément au présent document sont destinés à être utilisés par des personnes (électriquement) qualifiées uniquement. Les indicateurs de tension alternative sans contact ne sont pas conçus pour vérifier l'absence de tension de service.

General Information

Status
Published
Publication Date
09-Nov-2021
Current Stage
PPUB - Publication issued
Completion Date
10-Nov-2021
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IEC 61557-17
Edition 1.0 2021-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical safety in low voltage distribution systems up to 1 000 V AC and
1 500 V DC – Equipment for testing, measuring or monitoring of protective
measures –
Part 17: Non-contact AC voltage indicators
Sécurité électrique dans les réseaux de distribution basse tension au plus égale
à 1 000 V C.A. et 1 500 V C.C. – Dispositifs de contrôle, de mesure ou de
surveillance de mesures de protection –
Partie 17: Indicateurs de tension alternative sans contact
IEC 61557-17:2021-11(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 61557-17
Edition 1.0 2021-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical safety in low voltage distribution systems up to 1 000 V AC and
1 500 V DC – Equipment for testing, measuring or monitoring of protective
measures –
Part 17: Non-contact AC voltage indicators
Sécurité électrique dans les réseaux de distribution basse tension au plus égale
à 1 000 V C.A. et 1 500 V C.C. – Dispositifs de contrôle, de mesure ou de
surveillance de mesures de protection –
Partie 17: Indicateurs de tension alternative sans contact
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.20; 29.080.01; 29.240.01 ISBN 978-2-8322-1017-7

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

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 61557-17:2021 © IEC 2021
CONTENTS

FOREWORD ........................................................................................................................... 3

INTRODUCTION ..................................................................................................................... 5

1 Scope .............................................................................................................................. 6

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

3 Terms and definitions ...................................................................................................... 6

4 Requirements .................................................................................................................. 7

4.1 General ................................................................................................................... 7

4.2 Influencing quantities – Operating uncertainty (B), percentage operating

uncertainty (B [%]) .................................................................................................. 7

4.3 Rated operating conditions ..................................................................................... 7

4.4 Battery test facility .................................................................................................. 7

4.5 Safety ..................................................................................................................... 7

4.6 Electromagnetic compatibility .................................................................................. 8

4.6.1 Immunity .......................................................................................................... 8

4.6.2 Emission .......................................................................................................... 8

4.7 Indication ................................................................................................................ 8

5 Marking and operating instructions .................................................................................. 8

6 Tests ............................................................................................................................... 9

6.1 General ................................................................................................................... 9

6.2 Test of mechanical strength .................................................................................... 9

6.3 Test of indication (type test) .................................................................................... 9

6.4 Test of visibility of optical indication (type test) ..................................................... 11

6.5 Safety tests ........................................................................................................... 11

6.6 EMC tests ............................................................................................................. 12

6.7 Marking and operating instructions ........................................................................ 12

Bibliography .......................................................................................................................... 13

Figure 1 – Non-contact AC voltage indicator ........................................................................... 8

Figure 2 – Test configuration to determine the trigger point of indication (front view) ............ 10

Figure 3 – Test configuration to determine the trigger point of indication (side view) ............. 11

---------------------- Page: 4 ----------------------
IEC FDIS 61557-17 © IEC 2021 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS
UP TO 1 000 V AC AND 1 500 V DC – EQUIPMENT FOR TESTING,
MEASURING OR MONITORING OF PROTECTIVE MEASURES –
Part 17: Non-contact AC voltage indicators
FOREWORD

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

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

IEC 61557-17 has been prepared by IEC technical committee 85: Measuring equipment for

electrical and electromagnetic quantities. It is an International Standard.
The text of this International Standard is based on the following documents:
FDIS Report on voting
85/790/FDIS 85/803/RVD

Full information on the voting for its approval can be found in the report on voting indicated in

the above table.
The language used for the development of this International Standard is English.
---------------------- Page: 5 ----------------------
– 4 – IEC 61557-17:2021 © IEC 2021

A list of all parts of the IEC 61557 series, published under the general title Electrical safety in

low voltage distribution systems up to 1 000 V AC and 1 500 V DC – Equipment for testing,

measuring or monitoring of protective measures, can be found on the IEC website.
This International Standard is to be used in conjunction with IEC 61557-1:2019.

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

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

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

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

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

stability date indicated on the IEC website under 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.
---------------------- Page: 6 ----------------------
IEC FDIS 61557-17 © IEC 2021 – 5 –
INTRODUCTION

The purpose of this document is to specify the minimum construction and performance

requirements of the non-contact AC voltage indicator in normal use and in case of reasonably

foreseeable misuse to reduce the risk of hazard during and after the voltage test.

The most reasonably foreseeable misuse of the non-contact AC voltage indicator is that the

operator uses it to check the absence of hazardous voltages followed by an unsafe

interpretation of the negative indication with respect to the current situation.

The assessment of the absence of hazardous live voltage is performed by using a 2-pole

low-voltage detector in compliance with IEC 61243-3.
---------------------- Page: 7 ----------------------
– 6 – IEC 61557-17:2021 © IEC 2021
ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS
UP TO 1 000 V AC AND 1 500 V DC – EQUIPMENT FOR TESTING,
MEASURING OR MONITORING OF PROTECTIVE MEASURES –
Part 17: Non-contact AC voltage indicators
1 Scope

This part of IEC 61557 defines minimum performance requirements for non-contact AC voltage

indicators to reduce the risk of electric shock for the testing person and bystanders caused by

the wrong interpretation of the indication.

Products designed and manufactured in accordance with this document are for use by

(electrically) skilled persons only. Non-contact AC voltage indicators are not designed for

testing the absence of the operating voltage.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies.

For undated references, the latest edition of the referenced document (including any

amendments) applies.

IEC 61010-031:2015, Safety requirements for electrical equipment for measurement, control

and laboratory use – Part 031: Safety requirements for hand-held probe assemblies for

electrical measurement and test
IEC 61010-031:2015/AMD1:2018

IEC 61326-1:2020, Electrical equipment for measurement, control and laboratory use – EMC

requirements – Part 1: General requirements

IEC 61557-1:2019, Electrical safety in low voltage distribution systems up to 1 000 V a.c. and

1 500 V d.c. – Equipment for testing, measuring or monitoring of protective measures – Part 1:

General requirements
3 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 61557-1 and the

following apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
____________

A consolidated version of this document exists, comprising IEC 61010-31:2015 and

IEC 61010-31:2015/AMD1:2018.
---------------------- Page: 8 ----------------------
IEC FDIS 61557-17 © IEC 2021 – 7 –
3.1
non-contact AC voltage indicator

hand-held and battery-powered probe without direct contact with the live part, indicating the

potential between the live part and the human body, which is usually close to the earth potential

3.2
protective fingerguard

part of the enclosure that indicates the limit of safe access and reduces the risk of the operator

touching hazardous live parts
[SOURCE: IEC 61010-031:2015, 3.1.3]
3.3
sensitivity range
range of voltage where the non-contact AC voltage indicator is triggering
4 Requirements
4.1 General

The requirements of IEC 61557-1:2019, Clause 4 and the following requirements apply.

4.2 Influencing quantities – Operating uncertainty (B), percentage operating
uncertainty (B [%])
IEC 61557-1:2019, 4.2 does not apply.
4.3 Rated operating conditions
The following rated operating conditions shall apply:
a) ambient temperature range from: −10 °C to +45 °C;

b) maximum relative humidity 95 % at temperatures up to 31 °C, decreasing linearly to 50 %

relative humidity at 45 °C;
c) distance through air between live conductor and probe tip: ≤ 2 mm;

d) position within a solid angle of 30° around the vertical axis between probe tip and conductor;

e) capacitance greater than or equal to 100 pF between the hand-held part and reference

earth, see Figure 2.
4.4 Battery test facility
In addition to IEC 61557-1:2019, 4.4, the following applies.

Non-contact AC voltage indicators shall have a self-test capability. As a minimum, the self-test

function shall confirm correct operation of the batteries and of the voltage indication.

4.5 Safety

The requirements in accordance with IEC 61557-1:2019, 4.5, do not apply. The following

requirements shall apply instead.
All electrical safety aspects are covered by IEC 61010-031.

The hand-held parts of the non-contact AC voltage indicator and the probe tip shall be separated

by a protective fingerguard, see Figure 1.
---------------------- Page: 9 ----------------------
– 8 – IEC 61557-17:2021 © IEC 2021

The clearance and creepage distance between the outmost tip of the probe and the hand-held

part of the fingerguard shall fulfil the requirements for double or reinforced insulation in

accordance with IEC 61010-031.

The probe tip shall be insulated by double or reinforced insulation from the handheld parts. The

insulation shall fulfil the relevant requirements of IEC 61010-031.

Non-contact AC voltage indicators shall be designed for measurement category III at a minimum

and for a minimum rated voltage to earth of 300 V.

The design of the protective fingerguard shall fulfil the requirements of IEC 61010-031.

Key
1 probe-tip
2 protective fingerguard
3 hand-held part
Figure 1 – Non-contact AC voltage indicator
4.6 Electromagnetic compatibility
4.6.1 Immunity
For immunity requirements, IEC 61326-1:2020, Table 2 shall apply.
4.6.2 Emission

For emissions, either class A or class B limits in accordance with IEC 61326-1:2020, 7.2 shall

apply.
4.7 Indication

The presence of voltage on a conductor within the specified sensitivity range of the non-contact

AC voltage indicator shall be indicated visually. Additional means of indication, for example

acoustic means or vibration, are permitted.
5 Marking and operating instructions

The requirements of IEC 61557-1:2019, Clause 5 do not apply. The following requirements shall

apply instead.

The non-contact AC voltage indicator shall be marked in accordance with IEC 61010-031:2015,

Table 1, with symbol 5 and symbol 7, and at least with the rated voltage to earth and

measurement category, the rated frequency and the specified range of sensitivity.

The operating instructions shall be in accordance with the requirements of IEC 61010-031 and,

the following information shall be provided in the operating instructions:
---------------------- Page: 10 ----------------------
IEC FDIS 61557-17 © IEC 2021 – 9 –

a) a clear warning that a non-contact AC voltage indicator shall not be used to test the absence

of voltages;

b) a clear warning that non-contact AC voltage indicators shall be used by skilled persons only;

c) information about influencing factors on the sensitivity of indication (for example wearing

protective gloves and/or shoes, presence of other energized conductors in the close

neighbourhood);

d) a statement that disassembling and repair of non-contact AC voltage indicators shall be

done by skilled persons only;
e) information about the type of energy source to be used;

f) the obligation to carry out a sensitivity test at the next applicable socket-outlet with live

voltages before starting the work.
6 Tests
6.1 General

The requirements of IEC 61557-1:2019, Clause 6 do not apply. The following requirements shall

apply instead.
6.2 Test of mechanical strength
Compliance with IEC 61557-1:2019, 4.7 shall be tested (type test).

A vibration test shall be carried out in accordance with IEC 61557-1. A drop test shall be carried

out in accordance with IEC 61010-031. After these tests, the non-contact AC voltage indicator

shall show no damages or cracks which could cause a hazard and shall show no loss of function

and sensitivity.
Compliance shall be tested as follows:
a) visual inspection (type test and routine test);
b) verification of clearances and creepages;

c) test of dielectric strength of solid insulation between probe tip and hand-held parts;

d) test of indication in accordance with 6.3 (type test and routine test);

e) functional test of battery test facility and self-test (type test and routine test).

6.3 Test of indication (type test)

The sensitivity of the non-contact AC voltage indicator shall be tested at the lower level of the

specified sensitivity range under the worst combination of operating conditions.

The test shall be carried out on an uninsulated cylindrical conductor with a cross section of

nominally 1,5 mm and a length of nominally 100 mm after the tests for mechanical strength.

During the test, the reference AC voltage of the live conductor shall be held at the specified

frequency and shall be adjusted from 85 % to 100 % of the specified lower level of the voltage

range to check the trigger point of the indication. The uncertainty of the voltage source should

be considered.

An earthed source and test configuration in accordance with Figure 2 and Figure 3 shall be

used for the test of indication.
---------------------- Page: 11 ----------------------
– 10 – IEC 61557-17:2021 © IEC 2021
Key
1 the distance is greater than 100 mm
2 the capacitance is 100 pF ±10 pF
3 metallic foil
4 device under test
5 the distance is approximately 50 mm
6 insulation plate of approximately 100 x 100 x 20 mm
7 the distance is 2 mm up to 2,4 mm
8 conductor at test voltage
9 metallic plate
Figure 2 – Test configuration to determine the trigger point of indication
(front view)
---------------------- Page: 12 ----------------------
IEC FDIS 61557-17 © IEC 2021 – 11 –
Key
1 the distance is greater than 100 mm
2 the capacitance is 100 pF ±10 pF
3 metallic foil
4 device under test
5 the distance is approximately 50 mm
6 insulation plate of approximately 100 x 100 x 20 mm
7 the distance is 2 mm up to 2,4 mm
8 conductor at test voltage
9 metallic plate
Figure 3 – Test configuration to determine the trigger point of indication
(side view)

To minimize the impact of extraneous capacities, any bracket to fix the device under test should

be non-metallic.

NOTE 1 Additional test points at other levels of the reference voltage can be defined by the manufacturer.

The routine tests shall be carried out under the test configuration in accordance with Figure 2,

but at room temperature, vertical position and a reference voltage equal to the specified lower

level of the voltage range.
NOTE 2 This document is not to be intended for calibration.
6.4 Test of visibility of optical indication (type test)

The indication shall be unambiguously discernible by an observer with average sight from a

distance of 0,5 m at ambient lighting levels from 30 lx to 1 000 lx.
6.5 Safety tests
The compliance with 4.5 shall be tested (type test).
---------------------- Page: 13 ----------------------
– 12 – IEC 61557-17:2021 © IEC 2021
6.6 EMC tests
The compliance with 4.6 shall be tested (type test).
6.7 Marking and operating instructions

The marking and the operating instructions shall be confirmed by visual inspection (type test).

The marking shall be inspected during the type test and the routine test.
---------------------- Page: 14 ----------------------
IEC FDIS 61557-17 © IEC 2021 – 13 –
Bibliography

IEC 61010-1:2010, Safety requirements for electrical equipment for measurement, control, and

laboratory use – Part 1: General requirements
IEC 61010-1:2010/AMD1:2016

IEC 61243-3, Live working – Voltage detectors – Part 3: Two-pole low-voltage type

___________
---------------------- Page: 15 ----------------------
– 14 – IEC 61557-17:2021 © IEC 2021
SOMMAIRE

AVANT-PROPOS .................................................................................................................. 15

INTRODUCTION ................................................................................................................... 17

1 Domaine d’application ................................................................................................... 18

2 Références normatives .................................................................................................. 18

3 Termes et définitions ..................................................................................................... 18

4 Exigences ...................................................................................................................... 19

4.1 Généralités ........................................................................................................... 19

4.2 Grandeurs d'influence – Incertitude de fonctionnement (B), incertitude de

fonctionnement en pourcentage (B [%]) ................................................................. 19

4.3 Conditions de fonctionnement assignées .............................................................. 19

4.4 Dispositif d'essai des batteries .............................................................................. 19

4.5 Sécurité ................................................................................................................ 19

4.6 Compatibilité électromagnétique ........................................................................... 20

4.6.1 Immunité ....................................................................................................... 20

4.6.2 Émission ........................................................................................................ 20

4.7 Indication .............................................................................................................. 20

5 Marquage et instructions de fonctionnement .................................................................. 20

6 Essais ........................................................................................................................... 21

6.1 Généralités ........................................................................................................... 21

6.2 Essai de résistance mécanique ............................................................................. 21

6.3 Essai d’indication (essai de type) ..........................................................................

...

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