EN 61243-3:1998

SLOVENSKI STANDARD
01-september-2000
Delo pod napetostjo - Napetostni detektorji - 3. del: Dvopolni nizkonapetostni tip
(IEC 61243-3:1998)
Live working - Voltage detectors -- Part 3: Two-pole low-voltage type
Arbeiten unter Spannung - Spannungsprüfer -- Teil 3: Zweipoliger Spannungsprüfer für
Niederspannungsnetze
Travaux sous tension - Détecteurs de tension -- Partie 3: Type bipolaire basse tension
Ta slovenski standard je istoveten z: EN 61243-3:1998
ICS:
13.260 9DUVWYRSUHGHOHNWULþQLP Protection against electric
XGDURP'HORSRGQDSHWRVWMR shock. Live working
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

NORME
CEI
INTERNATIONALE
IEC
61243-3
INTERNATIONAL
Première édition
STANDARD
First edition
1998-10
Travaux sous tension – Détecteurs de tension –
Partie 3:
Type bipolaire basse tension
Live working – Voltage detectors –
Part 3:
Two-pole low-voltage type
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61243-3 © IEC:1998 – 3 –
CONTENTS
Page
FOREWORD . 7
INTRODUCTION . 9
Clause
1 Scope . 11
2 Normative references . 11
3 Definitions. 15
4 Requirements. 21
4.1 General. 21
4.2 Functional requirements. 21
4.3 Electrical requirements. 25
4.4 Mechanical requirements . 29
4.5 Connecting leads . 31
4.6 Switches . 31
4.7 Clear indication and perceptibility . 31
4.8 Climatic categories. 33
4.9 Accuracy of indication . 33
4.10 Marking. 33
5 Tests . 35
5.1 General. 35
5.2 Tests of construction, protection against contact, current limiting resistance,
battery box, marking, instructions for use, and circuit diagram . 37
5.3 Test of clear indication and perceptibility . 37
5.4 Cold and moist heat test. 45
5.5 Test of electric strength. 45
5.6 Test of operating current . 47
5.7 Test of leakage current on indoor type detectors . 47
5.8 Test of leakage current on outdoor type detectors . 49
5.9 Test of surge voltage strength . 49
5.10 Testing for safety in the event of mistaking the voltage of the network . 49
5.11 Test of function of switches . 51
5.12 Test of built-in testing elements. 51
5.13 Test of radio interference suppression. 51
5.14 Test of heat resistance of insulating parts. 51
5.15 Test of over-temperature of handles and enclosures. 53
5.16 Impact hammer test . 53
5.17 Test of drop resistance. 53
5.18 Vibration resistance . 55
5.19 Flexing test . 55
5.20 Tensile test . 57
5.21 Pull relief test. 57
5.22 Test of the close adhesion of the detachable insulation of the electrode insulation 57
5.23 Test of degree of protection by enclosure . 59

61243-3 © IEC:1998 – 5 –
Table 1 – Climatic categories. 33
Figures
Figure 1 – Voltage detector. 61
Figure 2 – Arrangement for the test of clarity of visual indication . 63
Figure 3 – Arrangement for the test of audible indication . 65
Figure 4 – Apparatus for flexing test . 67
Annexes
Annex A – General test procedure . 69
Annex B – Instructions for use . 71
Annex C – Sampling plans and procedure. 75
Annex D – Example of how to use IEC 60664-1 (see 4.3.6) . 81
Annex E – Supplementary functions. 83
Annex F – Acceptance tests . 89

61243-3 © IEC:1998 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
–––––––––
LIVE WORKING – VOLTAGE DETECTORS –
Part 3: Two-pole low-voltage type
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization
for Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61243-3 has been prepared by IEC technical committee 78: Live
working.
The text of this standard is based on the following documents:
FDIS Report on voting
78/251/FDIS 78/257/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
Annexes A, B, C, D and E form an integral part of this standard.
Annex F is for information only.
The contents of the corrigenda of May 2000 and of December 2000 have been included in
this copy.
61243-3 © IEC:1998 – 9 –
INTRODUCTION
Some low-voltage detectors have been in use for general detection of the state of electrical
circuits.
The detector covered in this standard is very specific in the sense that it is not a measuring
instrument. This detector complies with special requirements for live working thus providing a
high level of safety to protect qualified users performing tests on electrical networks and to
indicate clearly the voltage states "voltage present" and/or "voltage not present".

61243-3 © IEC:1998 – 11 –
LIVE WORKING – VOLTAGE DETECTORS –
Part 3: Two-pole low-voltage type
1 Scope
This part of IEC 61243 is applicable to two-pole voltage detectors to be used on electrical
systems for nominal voltages not exceeding 1 000 V a.c. and/or 1 500 V d.c. and below 500 Hz
(nominal frequencies). The detector types are classified as follows: voltage class A: up to and
including 500 V a.c./750 V d.c.; voltage class B: up to and including 1 000 V a.c./1 500 V d.c.
This part of IEC 61243 also applies to supplementary functions such as phase indications,
rotating field indications, and continuity checks (see annex E). Furthermore, it applies to
accessories such as crocodile clips, detachable leads and contact electrode extensions.
Unless otherwise specified, all the voltages defined in this standard refer to phase-to-phase
voltages of three-phase systems. Detectors may be used in other than three-phase systems,
then the applicable phase-to-phase or phase-to-earth (ground) voltages are to be used to
determine the operating voltage.
Low-voltage detectors covered by this standard are not intended to provide measurement of
absolute values.
Measuring devices are excluded from this standard.
NOTE – The requirements for measuring devices are specified in IEC 61010-1 and IEC 61010-2-031.
2 Normative references
The following normative documents contain provisions which, through reference in this text,
constitute provisions of this part of IEC 61243. At the time of publication, the editions indicated
were valid. All normative documents are subject to revision, and parties to agreements based
on this part of IEC 61243 are encouraged to investigate the possibility of applying the most
recent editions of the normative documents indicated below. Members of IEC and ISO maintain
registers of currently valid International Standards.
IEC 60050(151):1978, International Electrotechnical Vocabulary (IEV) – Chapter 151: Electrical
and magnetic devices
IEC 60050(441):1984, International Electrotechnical Vocabulary (IEV) – Chapter 441:
Switchgear, controlgear and fuses
IEC 60050(601):1985, International Electrotechnical Vocabulary (IEV) – Chapter 601:
Generation, transmission and distribution of electricity – General
IEC 60060-1:1989, High voltage test techniques – Part 1: General definitions and test
requirements
61243-3 © IEC:1998 – 13 –
IEC 60060-2:1994, High voltage test techniques – Part 2: Measuring systems
IEC 60068-1:1988, Environmental testing – Part 1: General and guidance
IEC 60068-2-6:1995, Environmental testing – Part 2: Tests – Test Fc: Vibration (sinusoidal)
IEC 60068-2-32:1975, Environmental testing – Part 2: Tests – Test Ed: Free fall (Procedure 1)
IEC 60068-2-75:1997, Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests
IEC 60245-4:1994 Rubber insulated cables – Rated voltages up to and including 450/750 V –
Part 4: Cords and flexible cables
IEC 60304:1982, Standard colours for installation for low-frequency cables and wires
IEC 60364-4-41:1992, Electrical installations of buildings – Part 4: Protection for safety –
Chapter 41: Protection against electric shock
IEC 60364-4-47:1981, Electrical installations of buildings – Part 4: Protection for safety –
Chapter 47: Application of protective measures for safety – Section 470: General –
Section 471: Measures of protection again
...