IEC 62631-3-1-2016 Dielectric and resistive properties of solid insulating materials - Part 3-1 Determination of resistive properties (DC methods) - Volume resi.pdf

1、 IEC 62631-3-1 Edition 1.0 2016-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Dielectric and resistive properties of solid insulating materials Part 3-1: Determination of resistive properties (DC methods) Volume resistance and volume resistivity General method Proprits dilectriques et rsistives des

2、 matriaux isolants solides Partie 3-1: Dtermination des proprits rsistives (mthodes en courant continu) Rsistance transversale et rsistivit transversale Mthode gnrale IEC 62631-3-1:2016-03(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2016 IEC, Geneva, Switzerland All rights reserved. Unl

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20、ion 1.0 2016-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Dielectric and resistive properties of solid insulating materials Part 3-1: Determination of resistive properties (DC methods) Volume resistance and volume resistivity General method Proprits dilectriques et rsistives des matriaux isolants

21、solides Partie 3-1: Dtermination des proprits rsistives (mthodes en courant continu) Rsistance transversale et rsistivit transversale Mthode gnrale INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 17.220.99; 29.035.01 ISBN 978-2-8322-3254-5 Registered trademar

22、k of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 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 agr. 2 IE

23、C 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 Equipment 7 5.3.1 Accuracy 7 5.3.2 Guarding 7 5.3.3 Electrodes . 8 5.4 Calibration 10 5.5 Test speci

24、men . 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 and pre-treatment of test specimen 11 5.6 Procedures for specific materials . 11 6 Test procedure 11

25、 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 for guarded electrodes . 8 Figure 2 Specimen with liquid electrodes 9 Table 1 Test specimen . 10 I

26、EC 62631-3-1:2016 IEC 2016 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ DIELECTRIC AND RESISTIVE PROPERTIES OF SOLID INSULATING MATERIALS Part 3-1: Determination of resistive properties (DC methods) Volume resistance and volume resistivity General method FOREWORD 1) The International Electrotechnic

27、al 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 e

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36、ublication 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 P

37、ublication 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 prepared by IEC technical committee TC 112: Evaluation and qualification of electrical insulating materials and systems. This

38、 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 following significant technical changes with respect to the second edition of IEC 60093: a) IEC 60093 has been completely

39、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 to appear in this part of IEC 62631 and in IEC 62631-3-2, respectively. 4 I

40、EC 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 voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been draft

41、ed 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 wil

42、l 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. IEC 62631-3-1:2016 IEC 2016 5 DIELECTRIC AN

43、D RESISTIVE PROPERTIES OF SOLID INSULATING MATERIALS Part 3-1: Determination of resistive properties (DC methods) Volume resistance and volume 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 electr

44、ical insulation materials by applying a 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 edi

45、tion 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 60455 (all parts), Resin based reactive compounds used for electrical insulation IEC 60464 (all parts), Varnishes us

46、ed for electrical insulation IEC 61212 (all parts), Industrial materials Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes ISO 868, Plastics and ebonite Determination of indentation hardness by means of a durometer (Shore hardness) 3 Terms and defi

47、nitions For the purposes of this document, the following terms and definitions apply. 3.1 volume resistance part of the insulation resistance 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 m

48、aterial related to its volume Note 1 to entry: Volume resistivity is expressed in the unit of m. Note 2 to entry: For insulating materials, the 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:

49、Electromagnetism, “conductivity” is defined as “scalar or tensor quantity, the product of which by the electric field strength in a medium is equal to the electric current density” and “resistivity” as “the inverse of the conductivity when this inverse exists”. Measured in this way, the volume 6 IEC 62631-3-1:2016 IEC 2016 resistivity is an average of the resistivity over possi