IEC 60544-2:2012
(Main)Electrical insulating materials - Determination of the effects of ionizing radiation on insulating materials - Part 2: Procedures for irradiation and test
Electrical insulating materials - Determination of the effects of ionizing radiation on insulating materials - Part 2: Procedures for irradiation and test
IEC 60544-2:2012 specifies the controls maintained over the exposure conditions during and after the irradiation of insulating materials with ionizing radiation prior to the determination of radiation-induced changes in physical or chemical properties. This standard specifies a number of potentially significant irradiation conditions as well as various parameters which can influence the radiation-induced reactions under these conditions. The objective of this standard is to emphasize the importance of selecting suitable specimens, exposure conditions and test methods for determining the effect of radiation on appropriately chosen properties. Since many materials are used either in air or in inert environments, standard exposure conditions are recommended for both of these situations. It should be noted that this standard does not consider measurements which are performed during the irradiation. This edition includes the following significant technical changes with respect to the previous edition:
- alignment with standards recently developed by SC 45A as well as with other parts in the IEC 60544 series.
Matériaux isolants électriques - Détermination des effets des rayonnements ionisants sur les matériaux isolants - Partie 2: Méthodes d'irradiation et d'essai
La CEI 60544-2:2012 spécifie d'abord les contrôles exercés sur les conditions d'exposition pendant et après l'irradiation de matériaux isolants par des rayonnements ionisants, avant de déterminer les changements de propriétés physiques ou chimiques induits par rayonnement. Cette norme discute certaines des principales conditions d'irradiation possibles d'une importance significative et spécifie les divers paramètres qui peuvent influer sur les réactions induites par rayonnement dans ces conditions. L'objectif de la présente norme est de démontrer l'importance du choix d'échantillons, de conditions d'exposition et de méthodes d'essai appropriés pour déterminer les effets des rayonnements sur des propriétés convenablement choisies. Comme un grand nombre de matériaux peuvent être utilisés soit dans l'air, soit dans des environnements inertes, des conditions normales d'exposition sont recommandées pour chacune de ces situations. Il convient de noter que cette norme ne prend pas en compte les mesures réalisées pendant l'irradiation. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- alignement avec des normes récemment élaborées au sein du SC 45A, ainsi qu'avec d'autres parties de la série CEI 60544.
General Information
Standards Content (Sample)
IEC 60544-2 ®
Edition 3.0 2012-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical insulating materials – Determination of the effects of ionizing radiation
on insulating materials –
Part 2: Procedures for irradiation and test
Matériaux isolants électriques – détermination des effets des rayonnements
Ionisants sur les matériaux isolants –
Partie 2: Méthodes d'irradiation et d'essai
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IEC 60544-2 ®
Edition 3.0 2012-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical insulating materials – Determination of the effects of ionizing radiation
on insulating materials –
Part 2: Procedures for irradiation and test
Matériaux isolants électriques – détermination des effets des rayonnements
Ionisants sur les matériaux isolants –
Partie 2: Méthodes d'irradiation et d'essai
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX S
ICS 17.240; 29.035.01 ISBN 978-2-83220-223-4
– 2 – 60544-2 © IEC:2012
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 8
2 Normative references . 8
3 Irradiation . 9
3.1 Type of radiation and dosimetry . 9
3.2 Irradiation conditions . 10
3.3 Sample preparation . 10
3.4 Irradiation procedures . 10
3.4.1 Irradiation dose-rate control . 10
3.4.2 Irradiation temperature control . 10
3.4.3 Irradiation in air . 11
3.4.4 Irradiation in a medium other than air . 11
3.4.5 Irradiation in a vacuum . 11
3.4.6 Irradiation at high pressure . 12
3.4.7 Irradiation during mechanical stressing . 12
3.4.8 Irradiation during electrical stressing . 12
3.4.9 Combined irradiation procedures . 12
3.5 Post-irradiation effects . 12
3.6 Specified irradiation conditions . 12
4 Test . 12
4.1 General . 12
4.2 Test procedures . 13
4.3 Evaluation criteria . 13
4.3.1 End-point criteria . 13
4.3.2 Values of the absorbed dose . 14
4.4 Evaluation . 14
5 Report . 15
5.1 General . 15
5.2 Material . 15
5.3 Irradiation . 15
5.4 Test . 15
5.5 Results . 15
Annex A (informative) Examples of test reports . 16
Bibliography . 21
Figure A.1 – Change of mechanical properties as a function of absorbed dose for
magnetic coil insulation . 17
Figure A.2 – Breakdown voltage of insulating tape as a function of absorbed dose . 20
Table 1 – Critical properties and end-point criteria to be considered in evaluating the
classification of insulating materials in radiation environments . 14
Table A.1 – Example 1 – Magnetic coil insulation . 16
Table A.2 – Example 2 – Cable insulation . 18
60544-2 © IEC:2012 – 3 –
Table A.3 – Example 3 – Insulating tape . 19
– 4 – 60544-2 © IEC:2012
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL INSULATING MATERIALS –
DETERMINATION OF THE EFFECTS OF IONIZING
RADIATION ON INSULATING MATERIALS –
Part 2: Procedures for irradiation and test
FOREWORD
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International Standard IEC 60544-2 has been prepared by IEC technical committee 112:
Evaluation and qualification of electrical insulating materials and systems.
This third edition cancels and
...
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