EN 60243-2:2014

SLOVENSKI STANDARD
01-april-2014
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Electric strength of insulating materials - Test methods -- Part 2: Additional requirements
for tests using direct voltage
Rigidité diélectrique des matériaux isolants - Méthodes d’essai -- Partie 2: Exigences
complémentaires pour les essais à tension continue
Ta slovenski standard je istoveten z: EN 60243-2:2014
ICS:
17.220.99 Drugi standardi v zvezi z Other standards related to
elektriko in magnetizmom electricity and magnetism
29.035.01 Izolacijski materiali na Insulating materials in
splošno general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60243-2
NORME EUROPÉENNE
February 2014
EUROPÄISCHE NORM
ICS 17.220.99; 29.035.01 Supersedes EN 60243-2:2001

English version
Electric strength of insulating materials -
Test methods -
Part 2: Additional requirements for tests using direct voltage
(IEC 60243-2:2013)
Rigidité diélectrique des matériaux Elektrische Durchschlagfestigkeit
isolants - Méthodes d’essai - von isolierenden Werkstoffen -
Partie 2: Exigences complémentaires pour Prüfverfahren -
les essais à tension continue Teil 2: Zusätzliche Anforderungen für
(CEI 60243-2:2013) Prüfungen mit Gleichspannung
(IEC 60243-2:2013)
This European Standard was approved by CENELEC on 2013-12-31. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the CEN-CENELEC Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2014 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60243-2:2014 E
Foreword
The text of document 112/245/CDV, future edition 3 of IEC 60243-2, prepared by
IEC/TC 112 "Evaluation and qualification of electrical insulation materials and systems" was submitted
to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60243-2:2014.

The following dates are fixed:
(dop) 2014-09-30
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2016-12-31
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60243-2:2001.

This standard shall be read in conjunction with EN 60243-1.

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 60243-2:2013 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated :

IEC 60674-2 NOTE Harmonized as EN 60674-2.

- 3 - EN 60243-2:2014
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 60243-1 2013 Electric strength of insulating materials - EN 60243-1 2013
Test methods -
Part 1: Tests at power frequencies

IEC 60243-2 ®
Edition 3.0 2013-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric strength of insulating materials – Test methods –

Part 2: Additional requirements for tests using direct voltage

Rigidité diélectrique des matériaux isolants – Méthodes d’essai –

Partie 2: Exigences complémentaires pour les essais à tension continue

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX J
ICS 17.220.99; 29.035.01 ISBN 978-2-8322-1200-4

– 2 – 60243-2 © IEC:2013
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Significance of the test . 5
5 Electrodes and test specimens . 6
6 Conditioning before tests . 6
7 Surrounding medium . 6
8 Electrical apparatus . 6
8.1 Voltage source . 6
8.2 Voltage measurement . 7
9 Procedure . 7
10 Mode of increase of voltage . 7
11 Criterion of breakdown . 7
12 Number of tests . 7
13 Report . 7
Bibliography . 8

60243-2 © IEC:2013 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC STRENGTH OF INSULATING MATERIALS –
TEST METHODS –
Part 2: Additional requirements for tests using direct voltage

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of 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, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). 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. 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 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 IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60243-2 has been prepared by technical committee 112:
Evaluation and qualification of electrical insulation materials and systems
This third edition cancels and replaces the second edition published in 2001, and constitutes
an editorial revision.
This standard shall be read in conjunction with IEC 60243-1.
The text of this standard is based on the following documents:
CDV Report on voting
112/245/CDV 112/266A/RVC
– 4 – 60243-2 © IEC:2013
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 60243 series, published under the general title Electric strength of
insulating materials – Test methods, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
60243-2 © IEC:2013 – 5 –
ELECTRIC STRENGTH OF INSULATING MATERIALS –
TEST METHODS –
Part 2: Additional requirements for tests using direct voltage

1 Scope
This part of IEC 60243 gives requirements additional to those in IEC 60243-1 for the
determination of the electric strength of solid insulating materials under direct voltage stress.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60243-1:2013, Electric strength of insulating materials – Test methods – Part 1: Tests at
power frequencies
3 Terms and definitions
For the purposes of this document, the terms and definitions in IEC 60243-1:2013 apply.
4 Significance of the test
In addition to the requirements of Clause 4 of IEC 60243-1:2013, the following points shall be
considered when using direct-voltage tests.
For a non-homogeneous test specimen, with alternating voltage, the distribution of voltage
stress within the test specimen is determ
...