EN IEC 62631-3-12:2024
(Main)Dielectric and resistive properties of solid insulating materials - Part 3-12: Determination of resistive properties (DC methods) - Volume resistance and volume resistivity - Method for casting resins
Dielectric and resistive properties of solid insulating materials - Part 3-12: Determination of resistive properties (DC methods) - Volume resistance and volume resistivity - Method for casting resins
IEC 62631-3-12:2024 specifies a method of test for the determination of volume resistance and volume resistivity of electrical insulation materials by applying a DC voltage. It covers casting resins described in IEC 60455-3-1, IEC 60455-3-2, IEC 60455-3-3, IEC 60455-3-4, IEC 60455-3-8 and similar products. For other specific types of materials, other standards or the general method described in IEC 62631-3-1 can be more suitable.
Dielektrische und resistive Eigenschaften fester Elektroisolierstoffe - Teil 3-12: Bestimmung der resistiven Eigenschaften (Gleichstromverfahren) - Volumenwiderstand und Durchgangswiderstand, Verfahren für Gießharze
Propriétés diélectriques et résistives des matériaux isolant solides - Partie 3-12: Détermination des propriétés résistives (méthodes en courant continu) - Résistance volumique et résistivité volumique - Méthode pour résines de coulée
L’IEC 62631-3-12:2024 spécifie la méthode d'essai pour la détermination de la résistance volumique et de la résistivité volumique des matériaux isolants électriques par l'application d'une tension continue. Elle couvre les résines de coulée décrites dans l’IEC 60455-3-1, l’IEC 60455-3-2, l’IEC 60455-3-3, l’IEC 60455-3-4, l’IEC 60455-3-8 et les produits analogues. Pour d'autres types de matériaux spécifiques, d'autres normes ou la méthode générale décrite dans l’IEC 62631-3-1 peuvent être plus appropriées.
Dielektrične in uporovne lastnosti trdnih izolacijskih materialov - 3-12. del: Ugotavljanje uporovnih lastnosti (metode z enosmernim tokom) - Prehodna upornost in specifična prehodna upornost, metoda za ulivanje smol (IEC 62631-3-12:2024)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN IEC 62631-3-12:2023
01-julij-2023
Dielektrične in uporovne lastnosti trdnih izolacijskih materialov - 3-12. del:
Ugotavljanje uporovnih lastnosti (metode z enosmernim tokom) - Prehodna
upornost in specifična prehodna upornost, metoda za ulivanje smol
Dielectric and resistive properties of solid insulating materials - Part 3-12: Determination
of resistive properties (DC Methods) - Volume resistance and volume resistivity, method
for casting resins
Ta slovenski standard je istoveten z: prEN IEC 62631-3-12:2023
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
oSIST prEN IEC 62631-3-12:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN IEC 62631-3-12:2023
oSIST prEN IEC 62631-3-12:2023
112/608/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62631-3-12 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-05-19 2023-08-11
SUPERSEDES DOCUMENTS:
112/530/CD, 112/544B/CC
IEC TC 112 : EVALUATION AND QUALIFICATION OF ELECTRICAL INSULATING MATERIALS AND SYSTEMS
SECRETARIAT: SECRETARY:
Germany Mr Bernd Komanschek
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
TC 15
Other TC/SCs are requested to indicate their interest, if any,
in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for
Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
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This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they
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Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries”
clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for
submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).
TITLE:
Dielectric and resistive properties of solid insulating materials - Part 3-12: Determination of resistive
properties (DC Methods) - Volume resistance and volume resistivity, method for casting resins
PROPOSED STABILITY DATE: 2027
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
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oSIST prEN IEC 62631-3-12:2023
IEC CDV 62631-3-12 © IEC 2023 2 112/608/CDV
1 CONTENTS
3 FOREWORD . 3
4 INTRODUCTION . 5
5 1 Scope . 6
6 2 Normative references . 6
7 3 Terms and definitions . 6
8 4 Significance . 7
9 5 Method of test . 7
10 5.1 General . 7
11 5.2 Power supply, Voltage . 7
12 5.3 Equipment . 7
13 5.3.1 Accuracy ………………………………………………………………………………….7
14 5.3.2 Guarding ………………………………………………………………………………….8
15 5.3.3 Electrodes . 8
16 5.3.4 Calibration . 8
17 5.4 Test specimen . 8
18 5.5 Procedure for volume resistivity as function of temperature . 8
19 5.5.1 Equipment. 8
20 5.5.2 Test set up . 8
21 5.5.3 Procedure . 9
22 5.5.4 Calculation . 9
23 5.6 Procedure for volume resistivity after 7 days immersion into water . 9
24 5.6.1 Equipment. 9
25 5.6.2 Test set up . 9
26 5.6.3 Procedure . 9
27 5.6.4 Calculation . 10
28 6 Report. 10
29 7 Repeatability and reproducibility . 10
30 Bibliography . 11
oSIST prEN IEC 62631-3-12:2023
IEC CDV 62631-3-12 © IEC 2023 3 112/608/CDV
34 INTERNATIONAL ELECTROTECHNICAL COMMISSION
35 ____________
37 DIELECTRIC AND RESISTIVE PROPERTIES
38 OF SOLID INSULATING MATERIALS –
40 Part 3-12: Determination of resistive properties (DC Methods)
41 Volume resistance and volume resistivity, method for casting resins
46 FOREWORD
47 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national
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73 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable
74 for the correct application of this publication.
75 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights.
76 IEC shall not be held responsible for identifying any or all such patent rights.
77 International Standard IEC 62631-3-12 has been prepared by IEC technical committee 112.
78 The text of this standard is based on the following documents:
FDIS Report on voting
112/XX/FDIS 112/XX/RVD
80 Full information on the voting for the approval of this standard can be found in the report on voting
81 indicated in the above table.
82 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
oSIST prEN IEC 62631-3-12:2023
IEC CDV 62631-3-12 © IEC 2023 4 112/608/CDV
The committee has decided that the contents of this publication will remain unchanged until the stability
84 date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to the specific
85 publication. At this date, the publication will be
86 • reconfirmed,
87 • withdrawn,
88 • replaced by a revised edition, or
89 • amended.
91 The National Committees are requested to note that for this publication the stability date is 2027.
92 THIS TEXT IS INCLUDED FOR THE INFORMATION OF THE NATIONAL COMMITTEES AND WILL BE DELETED AT THE
93 PUBLICATION STAGE.
oSIST prEN IEC 62631-3-12:2023
IEC CDV 62631-3-12 © IEC 2023 5 112/608/CDV
95 INTRODUCTION
96 Many segments of the electrotechnical industry need volume resistance and volume resistivity data of
97 solid insulating materials. This part of the 62631-3 series is focused on the method for casting resins.
98 Clear guidelines are needed to give the user of this standard a uniform approach to sample preparation
99 and test procedures.
oSIST prEN IEC 62631-3-12:2023
IEC CDV 62631-3-12 © IEC 2023 6 112/608/CDV
101 DIELECTRIC AND RESISTIVE PROPERTIES
102 OF SOLID INSULATING MATERIALS –
104 Part 3-12: Determination of resistive properties (DC Methods)
105 Volume resistance and volume resistivity, method for casting resins
107 1 Scope
108 This part of IEC 62631 covers method of test for the determination of volume resistance and volume
109 resistivity of electrical insulation materials by applying DC-voltage. It covers casting resins described in
110 IEC 60455-3-1, IEC 60455-3-2, IEC 60455-3-3, IEC 60455-3-4, IEC 60455-3-8 and similar products.
111 For other specific types of materials other standards or the general method described in IEC 62631-3-
112 1 may be more suitable.
113 2 Normative references
114 The following documents, in whole or in part, are normatively referenced in this document and are
115 indispensable for its application. For dated references, only the edition cited applies. For undated
116 references, the latest edition of the referenced document (including any amendments) applies.
117 IEC 60455-3-1, Resin based reactive compounds used for electrical insulation - Part 3: Specifications
118 for individual materials - Sheet 1: Unfilled epoxy resinous compounds
119 IEC 60455-3-2, Resin based reactive compounds used for electrical insulation - Part 3: Specifications
120 for individual materials - Sheet 2: Quartz filled epoxy resinous compounds
121 IEC 60455-3-3, Resin based reactive compounds used for electrical insulation - Part 3: Specifications
122 for individual materials - Sheet 3: Unfilled polyurethane compounds
123 IEC 60455-3-4, Resin based reactive compounds used for electrical insulation - Part 3: Specifications
124 for individual materials - Sheet 4: Filled polyurethane compounds
125 IEC 60455-3-8, Resin based reactive compounds used for electrical insulation - Part 3: Specifications
126 for individual materials - Sheet 8: Resins for cable accessories
127 IEC 62631-3-1, Dielectric and resistive properties of solid insulating materials - Part 3-1: Determination
128 of resistive properties (DC Methods) - Volume resistance and volume resistivity, general method
129 ISO 2808, Paints and varnishes - Determination of film thickness
130 3 Terms and definitions
131 For the purposes of this document, the following terms and definitions apply.
132 3.1
133 Volume resistance
134 part of the insulation resistance which is due to conduction through the volume.
135 Note to entry - expressed in the unit of Ω.
136 3.2
137 Volume r
...
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