SIST EN 60544-4:2004

Electrical insulating materials - Determination of the effects of ionizing radiation -- Part 4: Classification system for service in radiation environments

Provides a classification system that serves as a guide for the selection and indexing of insulating materials intended to serve in the radiation environment of nuclear reactor facilities, reactor fuel-processing facilities, irradiation facilities, particle accelerators, and X-ray apparatus. The classification system provides a set of parameters defining the utility of the three types of polymeric materials (rigid plastics, flexible plastics, elastomers) for use in devices which are exposed to ionizing radiation. This part of EN 60544 forms the basis for a quantitative statement of the suitability of such materials for radiation environments and therefore provides a guide for material specifications and for procurement agreements between suppliers and users. The purpose of the revision was to bring Part 4 in line with the revision of Part 1 (1994) and Part 2 (1991), in particular the fact that Part 3 has been incorporated in Part 2. This concerns mainly all the cross-references (which were wrong in the previous edition), and therefore the main changes were editorial.

Elektroisolierstoffe - Bestimmung der Wirkung ionisierender Strahlung -- Teil 4: Klassifikationssystem für den Einsatz unter Strahlung

Matériaux isolants électriques - Détermination des effets des rayonnements ionisants -- Partie 4: Système de classification pour l'utilisation dans un environnement sous rayonnement

Fournit un système de classification constituant un guide pour choisir et répertorier les matériaux isolants devant être employés dans l'environnement sous rayonnement des réacteurs nucléaires, des installations du traitement des combustibles nucléaires, des installations d'irradiation, des accélérateurs de particules et des appareils à rayons X. Le système de classification donne une série de paramètres définissant les possibilités d'emploi des trois types de matériaux polymériques (plastiques rigides, plastiques souples et élastomères) devant être employés dans des dispositifs exposés à des rayonnements ionisants. La présente partie de la EN 60544 constitue la base de l'évaluation quantitative de la possibilité d'utiliser de tels matériaux pour des environnements sous rayonnement et, par conséquent, elle sert de guide pour les spécifications des matériaux et les accords d'approvi-sionnement entre les fournisseurs et les utilisateurs. La raison de la révision était d'aligner la partie 4 avec la révision de la partie 1 (1994) et la partie 2 (1991),et en particulier le fait que la partie 3 a été incluse dans la seconde édition de la publication de la partie 2. Cela concerne surtout les références (qui sont incorrectes dans la version précédente); en conséquent les principaux changements sont éditoriaux.

Električni izolacijski materiali – Ugotavljanje učinkov ionizirnega sevanja - 4. del: Klasifikacijski sistem za uporabo v okoljih s sevanjem (IEC 60544-4:2003)

General Information

• Status: Published
• Publication Date: 31-Aug-2004
• ICS: 29.035.01 - Insulating materials in general
• Technical Committee: IZO - Insulating materials
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Sep-2004
• Due Date: 01-Sep-2004
• Completion Date: 01-Sep-2004
• Ref Project: EN 60544-4:2003 - Electrical insulating materials - Determination of the effects of ionizing radiation - Part 4: Classification system for service in radiation environments

Standards Content (Sample)

SLOVENSKI SIST EN 60544-4:2004

STANDARD
september 2004
Električni izolacijski materiali – Ugotavljanje učinkov ionizirnega sevanja - 4.
del: Klasifikacijski sistem za uporabo v okoljih s sevanjem (IEC 60544-4:2003)
Electrial insulating materiales - Determination of the effects of ionizing radiation -
Part 4: Classification system for service in radiation environments (IEC 60544-
4:2003)
ICS 29.035.01 Referenčna številka
SIST EN 60544-4:2004(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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EUROPEAN STANDARD EN 60544-4
NORME EUROPÉENNE
EUROPÄISCHE NORM October 2003

ICS 17.240; 29.035.01


English version


Electrical insulating materials -
Determination of the effects of ionizing radiation
Part 4: Classification system for service in radiation environments
(IEC 60544-4:2003)


Matériaux isolants électriques - Elektroisolierstoffe -
Détermination des effets Bestimmung der Wirkung
des rayonnements ionisants ionisierender Strahlung
Partie 4: Système de classification Teil 4: Klassifikationssystem
pour l'utilisation dans un environnement für den Einsatz unter Strahlung
sous rayonnement (IEC 60544-4:2003)
(CEI 60544-4:2003)






This European Standard was approved by CENELEC on 2003-10-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status 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 Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, 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 Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 60544-4:2003 E

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EN 60544-4:2003 - 2 -
Foreword

The text of document 15E/218/FDIS, future edition 2 of IEC 60544-4, prepared by SC 15E, Methods of
test, of IEC TC 15, Insulating materials, was submitted to the IEC-CENELEC parallel vote and was
approved by CENELEC as EN 60544-4 on 2003-10-01.

The following dates were fixed:

– latest date by which the EN has to be implemented
 at national level by publication of an identical
 national standard or by endorsement (dop) 2004-07-01

– latest date by which the national standards conflicting
 with the EN have to be withdrawn (dow) 2006-10-01

Annexes designated "normative" are part of the body of the standard.
In this standard, annex ZA is normative.
Annex ZA has been added by CENELEC.
__________

Endorsement notice

The text of the International Standard IEC 60544-4:2003 was approved by CENELEC as a European
Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 60093 NOTE Harmonized as HD 429 S1:1993 (not modified).
IEC 60167 NOTE Harmonized as HD 568 S1:1990 (not modified).
IEC 60243 NOTE Harmonized as EN 60243 series (not modified).
ISO 178 NOTE Harmonized as EN ISO 178:2003 (not modified).
ISO 179 NOTE Harmonized as EN ISO 179 series (not modified).
ISO 527 NOTE Harmonized as EN ISO 527 series (not modified).
ISO 868 NOTE Harmonized as EN ISO 868:2003 (not modified).
__________

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- 3 - EN 60544-4:2003
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this European Standard only when incorporated in it by amendment or
revision. For undated references the latest edition of the publication referred to applies (including
amendments).
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
IEC 60212 1971 Standard conditions for use prior to and HD 437 S1 1984
during the testing of solid electrical
insulating materials

IEC 60544-1 1994 Electrical insulating materials - EN 60544-1 1994
Determination of the effects of ionizing
radiation
Part 1: Radiation interaction and
dosimetry

IEC 60544-2 1991 Part 2: Procedures for irradiation and - -
test

IEC/TR2 61244-1 1993 Determination of long-term radiation - -
ageing in polymers
Part 1: Techniques for monitoring
diffusion-limited oxidation

IEC/TR2 61244-2 1996 Part 2: Procedures for predicting ageing - -
at low dose rates

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NORME CEI
INTERNATIONALE IEC
60544-4
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
2003-07
Matériaux isolants électriques –
Détermination des effets des rayonnements
ionisants –
Partie 4:
Système de classification pour l'utilisation
dans un environnement sous rayonnement
Electrical insulating materials –
Determination of the effects of ionizing
radiation –
Part 4:
Classification system for service
in radiation environments
 IEC 2003 Droits de reproduction réservés  Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail]  Web: www.iec.ch
CODE PRIX
L
Commission Electrotechnique Internationale PRICE CODE
International Electrotechnical Commission
Международная Электротехническая Комиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue

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60544-4  IEC:2003 – 3 –
CONTENTS
FOREWORD . 5
INTRODUCTION .9
1 Scope and object .11
2 Normative references.11
3 Classification system .13
3.1 Definition of radiation index .13
3.2 Dose rate.13
3.3 Critical properties .15
3.4 Temperatures .15
3.5 Additional considerations.15
4 Designation of radiation index and special service qualifiers.17
4.1 Radiation index.17
4.2 Radiation index with qualifications .17
4.3 Examples.19
Bibliography.23
Table 1 – Critical properties and end-point criteria to be considered in evaluating
the classification of insulating materials in radiation environments .19
Table 2 – Values for radiation index .21

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60544-4  IEC:2003 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL INSULATING MATERIALS –
DETERMINATION OF THE EFFECTS OF IONIZING RADIATION –
Part 4: Classification system for service in radiation environments
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
international 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, and Guides (hereafter 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
participate 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 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 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 apply 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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
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, 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 correct 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 60544-4 has been prepared by subcommittee 15E: Methods of
test, of IEC technical committee 15: Insulating materials.
This second edition cancels and replaces the first edition, published in 1985.
The purpose of the revision was to bring Part 4 in line with the revision of Part 1 (1994) and
Part 2 (1991), in particular the fact that Part 3 has been incorporated in Part 2. This concerns
mainly all the cross-references (which were wrong in the previous edition), and therefore the
main changes were editorial.

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60544-4  IEC:2003 – 7 –
The text of this standard is based on the following documents:
FDIS Report on voting
15E/218/FDIS 15E/220/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 drafted in accordance with the ISO/IEC Directives, Part 2.
IEC 60544 consists of the following parts, under the general title Electrical insulating
materials – Determination of the effects of ionizing radiation:
Part 1: Radiation interaction and dosimetry
Part 2: Procedures for irradiation and test
Part 3: (now incorporated into Part 2)
Part 4: Classification system for service in radiation environments
Part 5: Procedures for assessment of ageing in service
The committee has decided that the contents of this publication will remain unchanged until 2008.
At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.

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60544-4  IEC:2003 – 9 –
INTRODUCTION
Organic insulating materials occupy a role of major significance in electrical technology. They
rank with metals and ceramics as the principal category of materials used in the construction
of components in this field. Of all materials, organics are amongst those that are most
sensitive to the effects of radiation, and the response varies widely for different materials.
Thus, when selecting insulating materials for specific service applications in radiation
environments, information on the radiation tolerance of the candidate materials is required.
The purpose of this part of IEC 60544 is to define an internationally recommended
classification system to categorize the radiation endurance of insulating materials for such
applications.
This standard is the fourth in a series dealing with the effect of ionizing radiation on insulating
materials. IEC 60544-1 constitutes an introduction dealing very broadly with the problems
involved in evaluating radiation effects. It also provides a guide to dosimetry terminology,
several methods of determining exposure and absorbed dose, and methods of calculating
absorbed dose in any specific material from the dosimetry method applied.
IEC 60544-2 describes procedures for m
...