EN 62631-3-2:2016

Dielectric and resistive properties of solid insulating materials - Part 3-2: Determination of resistive properties (DC Methods) - Surface resistance and surface resistivity

IEC 62631-3-2:2015 covers methods of test for the determination of surface resistance and surface resistivity of electrical insulation materials by applying DC voltage. This first edition cancels and replaces the second edition of IEC 60093, published in 1980, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the second edition of IEC 60093: a) IEC 60093 has been completely revised, both editorially and technically, and incorporated into the new IEC 62631 series; b) test methods have been updated to current day state of the art; c) volume and surface resistance and resistivity are now separated into IEC 62631-3-1 and IEC 62631-3-2, respectively.

Dielektrische und resistive Eigenschaften fester Isolierstoffe - Teil 3-2: Bestimmung resistiver Eigenschaften (Gleichspannungsverfahren) - Oberflächenwiderstand und spezifischer Oberflächenwiderstand

Propriétés diélectriques et résistives des matériaux isolants solides - Partie 3-2: Détermination des propriétés résistives (Méthodes en courant continu) - Résistance superficielle et résistivité superficielle

L'IEC 62631-3-2:2015 couvre des méthodes d'essai pour déterminer la résistance superficielle et la résistivité superficielle de matériaux isolants électriques en appliquant une tension continue. Cette première édition annule et remplace la deuxième édition de l'IEC 60093 parue en 1980 dont elle constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à la deuxième édition de l'IEC 60093: a) l'IEC 60093 a été entièrement révisée tant au plan rédactionnel que technique et insérée dans la nouvelle série IEC 62631; b) les méthodes d'essai ont été adaptées à l'état actuel de la technique; c) les résistances et les résistivités transversales et superficielles sont maintenant séparées et font l'objet de deux parties, l'IEC 62631-3-1 et l'IEC 62631-3-2, respectivement.

Dielektrične in uporovne lastnosti trdnih izolacijskih materialov - 3-2. del: Ugotavljanje uporovnih lastnosti (metode z enosmernim tokom) - Površinska upornost in površinska specifična upornost (IEC 62631-3-2:2015)

Ta del standarda IEC 62631 obravnava preskusne metode za ugotavljanje površinske upornosti in površinske specifične upornosti elektroizolacijskih materialov z uporabo enosmernega toka.

General Information

• Status: Published
• Publication Date: 25-Feb-2016
• Withdrawal Date: 07-Jan-2019
• ICS: 17.220.99 - Other standards related to electricity and magnetism
• ICS: 29.035.01 - Insulating materials in general
• Technical Committee: CLC/SR 112 - Evaluation and qualification of electrical insulating materials and systems (to be defined)
• Drafting Committee: IEC/TC 112 - IEC_TC_112
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 26-Feb-2016
• Completion Date: 26-Feb-2016
• Ref Project: SIST EN 62631-3-2:2016 - Dielectric and resistive properties of solid insulating materials - Part 3-2: Determination of resistive properties (DC Methods) - Surface resistance and surface resistivity (IEC 62631-3-2:2015)

Relations

• Replaces: HD 429 S1:1983 - Methods of test for volume resistivity and surface resistivity of solid electrical insulating materials
• Effective Date: 07-Jun-2022
• Revised: prEN IEC 62631-3-2:2022 - Dielectric and resistive properties of solid insulating materials - Part 3-2: Determination of resistive properties (DC methods) - Surface resistance and surface resistivity
• Effective Date: 28-Sep-2021

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 62631-3-2:2016
01-maj-2016
'LHOHNWULþQHLQXSRURYQHODVWQRVWLWUGQLKL]RODFLMVNLKPDWHULDORYGHO
8JRWDYOMDQMHXSRURYQLKODVWQRVWLPHWRGH]HQRVPHUQLPWRNRP3RYUãLQVND
XSRUQRVWLQSRYUãLQVNDVSHFLILþQDXSRUQRVW,(&

Dielectric and resistive properties of solid insulating materials - Part 3-2: Determination of

resistive properties (DC Methods) - Surface resistance and surface resistivity (IEC 62631

-3-2:2015)

Propriétés diélectriques et résistives des matériaux isolants solides - Partie 3-2:

Détermination des propriétés résistives (Méthodes en courant continu) - Résistance

superficielle et résistivité superficielle
Ta slovenski standard je istoveten z: EN 62631-3-2:2016
ICS:
29.035.01 Izolacijski materiali na Insulating materials in
splošno general
SIST EN 62631-3-2:2016 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 62631-3-2:2016
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SIST EN 62631-3-2:2016
EUROPEAN STANDARD EN 62631-3-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2016
ICS 17.220.99; 29.035.01
English Version
Dielectric and resistive properties of solid insulating materials -
Part 3-2: Determination of resistive properties (DC Methods) -
Surface resistance and surface resistivity
(IEC 62631-3-2:2015)

Propriétés diélectriques et résistives des matériaux isolants Dielektrische und resistive Eigenschaften fester Isolierstoffe

solides - Partie 3-2: Détermination des propriétés résistives - Teil 3-2: Bestimmung von Widerstandseigenschaften

(Méthodes en courant continu) - Résistance superficielle et (Gleichstromverfahren) - Oberflächenwiderstand und

résistivité superficielle spezifischer Oberflächenwiderstand
(IEC 62631-3-2:2015) (IEC 62631-3-2:2015)

This European Standard was approved by CENELEC on 2016-01-08. 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.
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

© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 62631-3-2:2016 E
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SIST EN 62631-3-2:2016
EN 62631-3-2:2016
European foreword

The text of document 112/340/FDIS, future edition 1 of IEC 62631-3-2, prepared by IEC/TC 112

"Evaluation and qualification of electrical insulating materials and systems" was submitted to the

IEC-CENELEC parallel vote and approved by CENELEC as EN 62631-3-2:2016.
The following dates are fixed:
(dop) 2016-10-08
• 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) 2019-01-08
standards conflicting with the
document have to be withdrawn

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 62631-3-2:2015 was approved by CENELEC as a

European Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 60893-2 NOTE Harmonized as EN 60893-2.
IEC 61212-2 NOTE Harmonized as EN 61212-2.
IEC 62011-2 NOTE Harmonized as EN 62011-2.
ISO 10350 (Series) NOTE Harmonized as EN ISO 10350 (Series).
ISO 10350-1 NOTE Harmonized as EN ISO 10350-1.
ISO 10350-2 NOTE Harmonized as EN ISO 10350-2.
ISO 14526 (Series) NOTE Harmonized as EN ISO 14526 (Series).
ISO 14527 (Series) NOTE Harmonized as EN ISO 14527 (Series).
ISO 14528 (Series) NOTE Harmonized as EN ISO 14528 (Series).
ISO 14529 (Series) NOTE Harmonized as EN ISO 14529 (Series).
ISO 14530 (Series) NOTE Harmonized as EN ISO 14530 (Series).
ISO 15252 (Series) NOTE Harmonized as EN ISO 15252 (Series).
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SIST EN 62631-3-2:2016
EN 62631-3-2:2016
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 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:

www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60212 - Standard conditions for use prior to and EN 60212 -
during the testing of solid electrical
insulating materials
IEC 62631-3-1 - Dielectric and resistive properties of solid - -
insulating materials - Part 3-1
Determination of resistive properties (DC
Methods) - Volume resistance and volume
resistivity, general method
IEC 62631-3-3 - Dielectric and resistive properties of solid EN 62631-3-3 -
insulating materials - Part 3-1
Determination of resistive properties (DC
Methods) - Volume resistance and volume
resistivity, general method
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SIST EN 62631-3-2:2016
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SIST EN 62631-3-2:2016
IEC 62631-3-2
Edition 1.0 2015-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Dielectric and resistive properties of solid insulating materials –
Part 3-2: Determination of resistive properties (DC methods) – Surface
resistance and surface resistivity
Propriétés diélectriques et résistives des matériaux isolants solides –
Partie 3-2: Détermination des propriétés résistives (méthodes en courant
continu) – Résistance superficielle et résistivité superficielle
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.99; 29.035.01 ISBN 978-2-8322-3025-1

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
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SIST EN 62631-3-2:2016
– 2 – IEC 62631-3-2:2015  IEC:2015
CONTENTS

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

1 Scope .............................................................................................................................. 5

2 Normative references ...................................................................................................... 5

3 Terms and definitions ...................................................................................................... 5

4 Significance ..................................................................................................................... 7

5 Method of test ................................................................................................................. 7

5.1 General ................................................................................................................... 7

5.2 Voltage ................................................................................................................... 8

5.3 Equipment .............................................................................................................. 8

5.3.1 General ........................................................................................................... 8

5.3.2 Accuracy ......................................................................................................... 8

5.3.3 Voltage source ................................................................................................ 8

5.3.4 Electrode arrangement A – Spring loaded electrodes ....................................... 8

5.3.5 Electrode arrangement B – Small line electrodes ............................................. 9

5.3.6 Electrode arrangement C – Annular electrodes .............................................. 10

5.3.7 Electrode arrangement D – Line electrodes ................................................... 11

5.3.8 Electrode arrangement E – Line electrodes for small plates ........................... 11

5.4 Test circuit ............................................................................................................ 11

5.5 Calibration ............................................................................................................ 12

5.6 Test specimen ...................................................................................................... 12

5.6.1 Recommended dimensions of test specimen and electrode

arrangements ................................................................................................ 12

5.6.2 Manufacturing of test specimen ..................................................................... 12

5.6.3 Number of test specimen ............................................................................... 13

5.6.4 Application of electrodes................................................................................ 13

5.6.5 Conditioning and pre-treatment of test specimen ........................................... 13

5.7 Test procedure ...................................................................................................... 13

6 Evaluation ..................................................................................................................... 13

6.1 For electrode arrangements A, B, D, and E ........................................................... 13

6.2 For electrode arrangement C ................................................................................ 14

7 Test report ..................................................................................................................... 14

8 Repeatability and reproducibility .................................................................................... 15

Annex A (informative) Specimen dimensions and electrode arrangement ............................. 16

Bibliography .......................................................................................................................... 17

Figure 1 – Electrode arrangement A (example) ....................................................................... 9

Figure 2 – Collector electrode for electrode arrangement B................................................... 10

Figure 3 – Electrode arrangement C ..................................................................................... 10

Figure 4 – Connection diagram of measurement with two- and three-terminal electrode

arrangements........................................................................................................................ 12

Table 1 – Typical electrode dimensions for electrode arrangement C .................................... 11

Table A.1 – Recommended test specimen dimensions and electrode arrangements for

specific products ................................................................................................................... 16

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SIST EN 62631-3-2:2016
IEC 62631-3-2:2015  IEC:2015 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DIELECTRIC AND RESISTIVE PROPERTIES
OF SOLID INSULATING MATERIALS –
Part 3-2: Determination of resistive properties (DC methods) –
Surface resistance and surface resistivity
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 62631-3-2 has been prepared by IEC technical committee 112:

Evaluation and qualification of electrical insulating materials and systems.

This first edition cancels and replaces the second edition of IEC 60093, published in 1980,

and constitutes a technical revision.

This edition includes the following significant technical changes with respect to the second

edition of IEC 60093:

a) IEC 60093 has been completely revised, both editorially and technically, and incorporated

into the new IEC 62631 series;
b) test methods have been updated to current day state of the art;

c) volume and surface resistance and resistivity are now separated into IEC 62631-3-1 and

IEC 62631-3-2, respectively.
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SIST EN 62631-3-2:2016
– 4 – IEC 62631-3-2:2015  IEC:2015
The text of this standard is based on the following documents:
FDIS Report on voting
112/340FDIS 112/351/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.

A list of all parts in the IEC 62631 series, published under the general title Dielectric and

resistive properties of solid insulating materials, 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 website 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.
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SIST EN 62631-3-2:2016
IEC 62631-3-2:2015  IEC:2015 – 5 –
DIELECTRIC AND RESISTIVE PROPERTIES
OF SOLID INSULATING MATERIALS –
Part 3-2: Determination of resistive properties (DC methods) –
Surface resistance and surface resistivity
1 Scope

This part of IEC 62631 covers methods of test for the determination of surface resistance and

surface resistivity of electrical insulation materials by applying DC voltage.
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 60212, Standard conditions for use prior to and during the testing of solid electrical

insulating materials

IEC 62631-3-1, Dielectric and resistive properties of solid insulating materials – Part 3-1:

Determination of resistive properties (DC Methods) – Volume resistance and volume

resistivity – General method

IEC 62631-3-3, Dielectric and resistive properties of solid insulating materials – Part 3-3:

Determination of resistive properties (DC Methods) – Insulation resistance
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
electrode arrangement
electrical conductive bodies on the surface of a test specimen

Note 1 to entry: The arrangement of electrodes should include procedures to ascertain sufficient contact to the

surface (e.g. by means of conducting paint) and/or the use of an adequate mechanical system applying the

necessary contact force to the test specimen’s surface.
3.1.1
spring loaded electrodes

line electrode system using two parallel lines of conducting spring tongues with sharp edges,

separated by a gap
3.1.2
line electrodes

electrode arrangement provided by two parallel lines, separated by a gap, applied to the test

specimen’s surface using a conductive material
___________
To be published.
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SIST EN 62631-3-2:2016
– 6 – IEC 62631-3-2:2015  IEC:2015
3.1.3
annular electrodes

central circular planar electrode with a surrounding ring electrode separated by a gap

Note 1 to entry: Guarded electrode systems as described in IEC 62631-3-1 are of similar shape. In the case of

surface resistance, the ring el
...