BS EN 62631-3-1-2016 Dielectric and resistive properties of solid insulating materials Determination of resistive properties (DC methods) Volume resistance and volume resistivity G.pdf

1、Dielectric and resistive properties of solid insulating materialsPart 3-1: Determination of resistive properties (DC methods) Volume resistance and volume resistivity General method (IEC 62631-3-1:2016) BS EN 62631-3-1:2016BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 1

2、5:06National forewordThe UK participation in its preparation was entrusted to TechnicalCommittee GEL/112, Evaluation and qualification of electrical insulatingmaterials and systems.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does

3、not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 84793 6ICS 17.220.99; 29.035.01Compliance with a British Standard cannot confer immunity f

4、romlegal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2016.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 62631-3-1:2016This British Standard is the UK implementation of EN 62

5、631-3-1:2016. It is identical to IEC 62631-3-1:2016. Together with BS EN 62631-1:2011 and BS EN 62631-3-2:2016, it supersedes BS 6233:1982 which is withdrawn.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 62631-3-1 June 2016 ICS 17.220.99; 29.035.01 Supersedes HD 429 S1:1983 (partially) Englis

6、h Version 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 62631-3-1:2016) Proprits dilectriques et rsistives des matriaux isolants solides - Partie 3-1: D

7、termination des proprits rsistives (mthodes en courant continu) - Rsistance transversale et rsistivit transversale - Mthode gnrale (IEC 62631-3-1:2016) Dielektrische und resistive Eigenschaften fester Isolierstoffe - Teil 3-1: Bestimmung resistiver Eigenschaften (Gleichspannungsverfahren) - Durchgan

8、gswiderstand und spezifischer Durchgangswiderstand, Basisverfahren (IEC 62631-3-1:2016) This European Standard was approved by CENELEC on 2016-04-27. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the sta

9、tus 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, Frenc

10、h, 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,

11、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, Sw

12、eden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CENELEC All rights of explo

13、itation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 62631-3-1:2016 E BS EN 62631-3-1:2016EN 62631-3-1:2016 2 European foreword The text of document 112/339/FDIS, future edition 1 of IEC 62631-3-1, prepared by IEC/TC 112 “Evaluation and qualification of electrical

14、 insulating materials and systems“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 62631-3-1:2016. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement

15、(dop) 2017-01-27 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2019-04-27 This document supersedes HD 429 S1:1983 (partially). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.

16、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 62631-3-1:2016 was approved by CENELEC as a European Standard without any modification. BS EN 62631-3-1:2016EN 62631-3-1:2016 3 Annex ZA (norm

17、ative) 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 unda

18、ted 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 S

19、tandards 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 during the testing of solid electrical insulating materials EN 60212 - IEC 60455 Series Resin based reactive compounds used for electrical insulation

20、 EN 60455 Series IEC 60464 Series Varnishes used for electrical insulation EN 60464 Series IEC 61212 Series Insulating materials - Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes EN 61212 Series ISO 868 - Plastics and ebonite - Determination of i

21、ndentation hardness by means of a durometer (Shore hardness) EN ISO 868 - BS EN 62631-3-1:2016 2 IEC 62631-3-1:2016 IEC 2016 CONTENTS FOREWORD . 3 1 Scope 5 2 Normative references. 5 3 Terms and definitions 5 4 Significance . 6 5 Method of test . 6 5.1 General . 6 5.2 Power supply, voltage . 6 5.3 E

22、quipment 7 5.3.1 Accuracy 7 5.3.2 Guarding 7 5.3.3 Electrodes . 8 5.4 Calibration 10 5.5 Test specimen . 10 5.5.1 General . 10 5.5.2 Recommended dimensions of test specimens and electrode arrangements . 10 5.5.3 Manufacturing of test specimens 11 5.5.4 Number of test specimen 11 5.5.5 Conditioning a

23、nd pre-treatment of test specimen 11 5.6 Procedures for specific materials . 11 6 Test procedure 11 6.1 General . 11 6.2 Measurement of volume resistance 11 6.3 Calculation of volume resistivity . 12 7 Test report. 12 8 Repeatability and reproducibility 12 Bibliography . 13 Figure 1 Basic connection

24、 for guarded electrodes . 8 Figure 2 Specimen with liquid electrodes 9 Table 1 Test specimen . 10 BS EN 62631-3-1:2016IEC 62631-3-1:2016 IEC 2016 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ DIELECTRIC AND RESISTIVE PROPERTIES OF SOLID INSULATING MATERIALS Part 3-1: Determination of resistive prope

25、rties (DC methods) Volume resistance and volume resistivity General method 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 in

26、ternational 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 (herea

27、fter 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 parti

28、cipate 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

29、 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

30、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 appl

31、y 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 c

32、onformity. 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 publ

33、ication. 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,

34、 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 cor

35、rect 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 62631-3-1 has been prepare

36、d by IEC technical committee TC 112: Evaluation and qualification of electrical insulating materials and systems. This first edition of IEC 62631-3-1 cancels and replaces the second edition of IEC 60093, published in 1980. This edition constitutes a technical revision. This edition includes the foll

37、owing 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 re

38、sistance and resistivity are now separated to appear in this part of IEC 62631 and in IEC 62631-3-2, respectively. BS EN 62631-3-1:2016 4 IEC 62631-3-1:2016 IEC 2016 The text of this standard is based on the following documents: FDIS Report on voting 112/339/FDIS 112/350/RVD Full information on the

39、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 pro

40、perties 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 d

41、ate, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. BS EN 62631-3-1:2016IEC 62631-3-1:2016 IEC 2016 5 DIELECTRIC AND RESISTIVE PROPERTIES OF SOLID INSULATING MATERIALS Part 3-1: Determination of resistive properties (DC methods) Volume resistance and volum

42、e resistivity General method 1 Scope This part of IEC 62631 covers a method of test for the determination of volume resistance and volume resistivity of electrical insulation materials by applying a DC voltage. 2 Normative references The following documents, in whole or in part, are normatively refe

43、renced 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

44、 solid electrical insulating materials IEC 60455 (all parts), Resin based reactive compounds used for electrical insulation IEC 60464 (all parts), Varnishes used for electrical insulation IEC 61212 (all parts), Industrial materials Industrial rigid round laminated tubes and rods based on thermosetti

45、ng resins for electrical purposes ISO 868, Plastics and ebonite Determination of indentation hardness by means of a durometer (Shore hardness) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 volume resistance part of the insulation resistance

46、 which is due to conduction through the volume Note 1 to entry: Volume resistance is expressed in the unit of . 3.2 volume resistivity volume resistance of a material related to its volume Note 1 to entry: Volume resistivity is expressed in the unit of m. Note 2 to entry: For insulating materials, t

47、he volume resistivity is usually determined by means of measuring electrodes arranged on a sheet of the material. Note 3 to entry: According to IEC 60050-121: Electromagnetism, “conductivity” is defined as “scalar or tensor quantity, the product of which by the electric field strength in a medium is

48、 equal to the electric current density” and “resistivity” as “the inverse of the conductivity when this inverse exists”. Measured in this way, the volume BS EN 62631-3-1:2016 6 IEC 62631-3-1:2016 IEC 2016 resistivity is an average of the resistivity over possible heterogeneities in the volume incorp

49、orated in the measurement; it includes the effect of possible polarization phenomena at the electrodes. 3.3 stray current leakage current in the earth or in metallic structures buried in the ground and resulting from their intended or unintended earthing 4 Significance Insulating materials are used in general to electrically isolate components of an electrical system from each other and from earth. Solid insulating material may also provide mechanical support. For these pu