IEC 62631-3-12:2024

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.

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.

General Information

• Status: Published
• Publication Date: 04-Jul-2024
• ICS: 17.220.99 - Other standards related to electricity and magnetism
• ICS: 29.035.01 - Insulating materials in general
• Technical Committee: TC 112 - Evaluation and qualification of electrical insulating materials and systems
• Drafting Committee: WG 4 - TC 112/WG 4
• Current Stage: PPUB - Publication issued
• Start Date: 02-Aug-2024
• Completion Date: 05-Jul-2024

Standards Content (Sample)

IEC 62631-3-12 ®
Edition 1.0 2024-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
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

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
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IEC 62631-3-12 ®
Edition 1.0 2024-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
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

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
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.99, 29.035.01 ISBN 978-2-8322-9299-0

– 2 – IEC 62631-3-12:2024 © IEC 2024
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Significance . 7
5 Method of test . 7
5.1 General . 7
5.2 Power supply and voltage . 7
5.3 Equipment . 8
5.3.1 Accuracy . 8
5.3.2 Guarding . 8
5.3.3 Electrodes . 8
5.3.4 Calibration . 8
5.4 Test specimen . 8
5.5 Procedure for volume resistivity as function of temperature . 8
5.5.1 General . 8
5.5.2 Equipment . 9
5.5.3 Test set-up . 9
5.5.4 Procedure . 9
5.5.5 Calculation . 9
5.6 Procedure for volume resistivity after seven days of immersion into water . 9
5.6.1 General . 9
5.6.2 Equipment . 10
5.6.3 Test set-up . 10
5.6.4 Procedure . 10
5.6.5 Calculation . 10
6 Report . 10
7 Repeatability and reproducibility . 11
Bibliography . 12

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
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

FOREWORD
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IEC 62631-3-12 has been prepared by IEC technical committee 112: Evaluation and
qualification of electrical insulating materials and systems. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
112/645/FDIS 112/652/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.

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