IEC 60587:2007
(Main)Electrical insulating materials used under severe ambient conditions - Test methods for evaluating resistance to tracking and erosion
Electrical insulating materials used under severe ambient conditions - Test methods for evaluating resistance to tracking and erosion
IEC 60587:2007 describes two test methods for the evaluation of electrical insulating materials for use under severe ambient conditions at power frequencies (45 Hz to 65 Hz) by measurement of the resistance to tracking and erosion, using a liquid contaminant and inclined plane specimens. The two methods are as follows:
- Method 1: constant tracking voltage;
- Method 2: stepwise tracking voltage.
The main changes from the previous edition are as follows: experience has indicated the need for improved description of the experimental method. For the preparation of the test specimens abrasion is recommended only if necessary. The ventilation of the test chamber is described in detail. For specimens of soft elastomeric materials a mounting support is described. The maximum depth of erosion has to be reported in the classification.
Matériaux isolants électriques utilisés dans des conditions ambiantes sévères - Méthodes d'essai pour évaluer la résistance au cheminement et à l'érosion
La CEI 60587:2007 décrit deux méthodes d'essai pour évaluer les matériaux isolants électriques utilisés dans des conditions ambiantes sévères à des fréquences industrielles (comprises entre 45 Hz et 65 Hz), impliquant la mesure de la résistance au cheminement et à l'érosion, à l'aide d'un contaminant liquide et d'éprouvettes plates inclinées. Les deux méthodes sont les suivantes:
- Méthode 1: essai de résistance au cheminement à tension constante;
- Méthode 2: essai de résistance au cheminement par paliers de tension.
Les principales modifications suivantes ont été apportées par rapport à l'édition précédente: l'expérience a montré le besoin d'améliorer la description de la méthode expérimentale. Ensuite, en ce qui concerne la préparation des éprouvettes, l'abrasion est recommandée uniquement si nécessaire. La ventilation de l'enceinte d'essai est également décrite en détail. Un support de montage est décrit pour les éprouvettes constituées de matériaux élastomères souples. Enfin, la profondeur d'érosion maximale doit être mentionnée dans la classification. La version française de cette norme n'a pas été soumise au vote.
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INTERNATIONAL IEC
STANDARD 60587
Third edition
2007-05
Electrical insulating materials
used under severe ambient conditions –
Test methods for evaluating resistance
to tracking and erosion
Reference number
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.
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Web: www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
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INTERNATIONAL IEC
STANDARD 60587
Third edition
2007-05
Electrical insulating materials
used under severe ambient conditions –
Test methods for evaluating resistance
to tracking and erosion
PRICE CODE
Commission Electrotechnique Internationale
P
International Electrotechnical Commission
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For price, see current catalogue
– 2 – 60587 © IEC:2007(E)
CONTENTS
FOREWORD.3
1 Scope.5
2 Terms and definitions .5
3 Test specimens .6
3.1 Dimensions .6
3.2 Preparation .6
4 Apparatus.6
4.1 Electrical apparatus.6
4.2 Electrodes .8
4.3 Contaminant.9
4.4 Timing device .10
4.5 Depth gauge.10
4.6 Ventilation .10
5 Procedure .11
5.1 Preparation of the test.11
5.2 Method 1: Application of constant tracking voltage .13
5.3 Method 2: stepwise tracking voltage.14
5.4 End-point criteria.14
6 Test report.15
Table 1 – Test parameters .8
Figure 1 – Test specimen with holes for fixing electrodes .6
Figure 2 – Schematic circuit diagram .7
Figure 3 – Example: typical circuit for an overcurrent delay relay (F in Figure 2).8
Figure 4 – Top electrode, stainless steel 0,5 mm thick .9
Figure 5 – Bottom electrode, stainless steel 0,5 mm thick .9
Figure 6 – Assembly of the electrodes .10
Figure 7 – Test assembly, schematic .11
Figure 8 – Mounting support .12
Figure 9 – Filter-paper (eight sheets requested for each top electrode).12
60587 © IEC:2007(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_____________
ELECTRICAL INSULATING MATERIALS
USED UNDER SEVERE AMBIENT CONDITIONS −
TEST METHODS FOR EVALUATING RESISTANCE TO TRACKING
AND EROSION
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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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 60587 has been prepared by IEC technical committee 112:
Evaluation and qualification of electrical insulating materials and systems.
This third edition cancels and replaces the second edition, published in 1984, and constitutes
a technical revision. The main changes from the previous edition are as follows: experience
has indicated the need for improved description of the experimental method. For the
preparation of the test specimens abrasion is recommended only if necessary. The ventilation
of the test chamber is described in detail. For specimens of soft elastomeric materials a
mounting support is described. The maximum depth of erosion has to be reported in the
classification.
– 4 – 60587 © IEC:2007(E)
The text of this standard is based on the following documents:
FDIS Report on voting
112/56/FDIS 112/61A/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.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result 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.
A bilingual version of this publication may be issued at a later date.
60587 © IEC:2007(E) – 5 –
ELECTRICAL INSULATING MATERIALS
USED UNDER SEVERE AMBIENT CONDITIONS −
TEST METHODS FOR EVALUATING RESISTANCE TO TRACKING
AND EROSION
1 Scope
This International standard describes two test methods for the evaluation of electrical
insulating materials for use under severe ambient conditions at power frequencies (45 Hz to
65 Hz) by measurement of the resistance to tracking and erosion, using a liquid contaminant
and inclined plane specimens. The two methods are as follows:
– Method 1: constant tracking voltage;
– Method 2: stepwise tracking voltage.
NOTE 1 Method 1 is the most widely used method as there is less need for continual inspection.
NOTE 2 The test conditions are designed to accelerate the production of the effects, but do not reproduce all the
conditions encountered in service.
2 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
2.1
track
partially conducting path created by localized deterioration on the surface of an insulating
material
2.2
tracking
progressive degradation of the surface of a solid insulating material by local discharges to
form conducting or partially conducting paths
NOTE Tracking usually occurs due to surface contamination.
[IEC 60050-212-01-42 ]
2.3
erosion, electrical
loss of material by leakage current or electrical discharge
2.4
time-to-track
time required to produce tracks under the specified conditions of test
—————————
IEC 60050-212:1990, International Electrotechnical Vocabulary − Chapter 212: Insulating solids, liquids and
gases
– 6 – 60587 © IEC:2007(E)
3 Test specimens
3.1 Dimensions
Flat specimens with a size of at least 50 mm X 120 mm shall be used. The preferred
thickness shall be 6 mm. Other thicknesses may be used, but must be mentioned in the test
report. The specimens shall be drilled as shown in Figure 1, to attach the electrodes.
120 (at least)
10 95
Reference marks
IEC 672/07
Dimensions in millimetres
Figure 1 – Test specimen with holes for fixing electrodes
3.2 Preparation
The specimens shall be washed with a suitable solvent (e.g. isopropyl alcohol) to remove
leftovers such as fat from handling. After that the specimens shall be rinsed with distilled
water.
The cleaned specimens shall be mounted carefully to avoid contamination.
If the contaminant does not wet the surface evenly within the observation time mentioned in
5.1, the surface of the specimens can be slightly abraded. The abrasion should be done with
a fine (U.S. grade (CAMI): 400 mesh; European grade (FEPA): P800) aluminium-oxide- or
zirconia-aluminia-abrasive under water until the whole surface wets and appears uniformly
matt when dry. When abraded the specimen shall be cleaned another time with distilled water.
Abrasion has to be mentioned in the test report.
Specimens used for criterion B (see 5.4) shall have reference marks on both edges, 25 mm
above the lower electrode (see Figures 1 and 7).
4 Apparatus
4.1 Electrical apparatus
A schematic circuit is given in Figure 2. As the test will be carried out at high voltages, it is
obviously necessary to use an earthed safety enclosure. The circuit comprises:
50 (at least)
60587 © IEC:2007(E) – 7 –
– A 45 Hz to 65 Hz power supply with an output voltage stabilized to ±5 % which can be
varied up to about 6 kV with a
...
IEC 60587 ®
Edition 3.0 2007-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical insulating materials used under severe ambient conditions – Test
methods for evaluating resistance to tracking and erosion
Matériaux isolants électriques utilisés dans des conditions ambiantes sévères –
Méthodes d’essai pour évaluer la résistance au cheminement et à l’érosion
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by
any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or
IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.
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Web: www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
ƒ Catalogue of IEC publications: www.iec.ch/searchpub
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IEC 60587 ®
Edition 3.0 2007-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical insulating materials used under severe ambient conditions – Test
methods for evaluating resistance to tracking and erosion
Matériaux isolants électriques utilisés dans des conditions ambiantes sévères –
Méthodes d’essai pour évaluer la résistance au cheminement et à l’érosion
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
P
CODE PRIX
ICS 17.220.99; 29.035.01 ISBN 978-2-88910-208-2
– 2 – 60587 © IEC:2007
CONTENTS
FOREWORD.3
1 Scope.5
2 Terms and definitions .5
3 Test specimens .6
3.1 Dimensions .6
3.2 Preparation .6
4 Apparatus.6
4.1 Electrical apparatus.6
4.2 Electrodes .8
4.3 Contaminant.9
4.4 Timing device .10
4.5 Depth gauge.10
4.6 Ventilation .10
5 Procedure .11
5.1 Preparation of the test.11
5.2 Method 1: Application of constant tracking voltage .13
5.3 Method 2: stepwise tracking voltage.14
5.4 End-point criteria.14
6 Test report.15
Figure 1 – Test specimen with holes for fixing electrodes .6
Figure 2 – Schematic circuit diagram .7
Figure 3 – Example: typical circuit for an overcurrent delay relay (F in Figure 2).8
Figure 4 – Top electrode, stainless steel 0,5 mm thick .9
Figure 5 – Bottom electrode, stainless steel 0,5 mm thick .9
Figure 6 – Assembly of the electrodes .10
Figure 7 – Test assembly, schematic .11
Figure 8 – Mounting support .12
Figure 9 – Filter-paper (eight sheets requested for each top electrode).12
Table 1 – Test parameters .8
60587 © IEC:2007 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_____________
ELECTRICAL INSULATING MATERIALS
USED UNDER SEVERE AMBIENT CONDITIONS –
TEST METHODS FOR EVALUATING RESISTANCE
TO TRACKING AND EROSION
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 60587 has been prepared by IEC technical committee 112:
Evaluation and qualification of electrical insulating materials and systems.
This third edition cancels and replaces the second edition, published in 1984, and constitutes
a technical revision. The main changes from the previous edition are as follows: experience
has indicated the need for improved description of the experimental method. For the
preparation of the test specimens abrasion is recommended only if necessary. The ventilation
of the test chamber is described in detail. For specimens of soft elastomeric materials a
mounting support is described. The maximum depth of erosion has to be reported in the
classification.
This bilingual version, published in 2009-11, corresponds to the English version.
– 4 – 60587 © IEC:2007
The text of this standard is based on the following documents:
FDIS Report on voting
112/56/FDIS 112/61/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.
The French version of this standard has not been voted upon.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result 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.
60587 © IEC:2007 – 5 –
ELECTRICAL INSULATING MATERIALS
USED UNDER SEVERE AMBIENT CONDITIONS –
TEST METHODS FOR EVALUATING RESISTANCE
TO TRACKING AND EROSION
1 Scope
This International standard describes two test methods for the evaluation of electrical
insulating materials for use under severe ambient conditions at power frequencies (45 Hz to
65 Hz) by measurement of the resistance to tracking and erosion, using a liquid conta
...
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