Insulating liquids - Unused modified or blended esters for electrotechnical applications

IEC 63012:2019 defines requirements for the characterization of unused modified esters or blends of unused esters used as insulating liquids for electrotechnical applications. It does not cover liquids that contain any proportion of used liquids. The liquids covered by this document are intended mainly for transformer applications.
Unused modified/synthetized esters are derived from a natural or synthetic base, or are blends of both. This document covers a variety of ester liquids not covered by other standards specific to natural esters (IEC 62770) or synthetic esters (IEC 61099). As it addresses various categories of liquids, this document also covers a wide range of values for certain performance characteristics. An important property is viscosity, which can affect the design and cooling performance of electrical equipment. A categorization is defined based on the kinematic viscosity of the different liquids. The category of low viscosity ester liquids is established.

Isolants liquides - Esters neufs modifiés ou mélangés pour applications électrotechniques

L'IEC 63012:2019 définit les exigences relatives à la caractérisation des esters neufs modifiés ou des mélanges d'esters neufs, utilisés comme isolants liquides pour des applications électrotechniques. Il ne couvre pas les liquides contenant une proportion quelconque de liquides usagés. Les liquides couverts par le présent document sont principalement destinés aux applications dans des transformateurs. Les esters neufs synthétiques/modifiés sont dérivés d'une base naturelle ou synthétique, ou sont des mélanges des deux. Le présent document couvre une variété de liquides à base d'esters non couverts par d'autres normes spécifiques aux esters naturels (IEC 62770) ou aux esters synthétiques (IEC 61099). Traitant d'une grande variété de liquides, le présent document couvre également une large plage de valeurs pour certaines caractéristiques de performance. La viscosité est une propriété importante qui peut influencer la conception et les performances de refroidissement du matériel électrique. Une classification est définie sur la base de la viscosité cinématique des différents liquides. La catégorie des liquides à base d'esters à faible viscosité est donc établie.

General Information

Status
Published
Publication Date
08-May-2019
Current Stage
PPUB - Publication issued
Start Date
31-May-2019
Completion Date
09-May-2019
Ref Project

Buy Standard

Standard
IEC 63012:2019 - Insulating liquids - Unused modified or blended esters for electrotechnical applications
English and French language
41 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)


IEC 63012 ®
Edition 1.0 2019-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Insulating liquids – Unused modified or blended esters for electrotechnical
applications
Isolants liquides – Esters neufs modifiés ou mélangés pour applications
électrotechniques
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.

need further assistance, please contact the Customer Service

Centre: sales@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Recherche de publications IEC - Electropedia - www.electropedia.org
webstore.iec.ch/advsearchform Le premier dictionnaire d'électrotechnologie en ligne au
La recherche avancée permet de trouver des publications IEC monde, avec plus de 22 000 articles terminologiques en
en utilisant différents critères (numéro de référence, texte, anglais et en français, ainsi que les termes équivalents dans
comité d’études,…). Elle donne aussi des informations sur les 16 langues additionnelles. Egalement appelé Vocabulaire
projets et les publications remplacées ou retirées. Electrotechnique International (IEV) en ligne.

IEC Just Published - webstore.iec.ch/justpublished Glossaire IEC - std.iec.ch/glossary
Restez informé sur les nouvelles publications IEC. Just 67 000 entrées terminologiques électrotechniques, en anglais
Published détaille les nouvelles publications parues. et en français, extraites des articles Termes et Définitions des
Disponible en ligne et une fois par mois par email. publications IEC parues depuis 2002. Plus certaines entrées
antérieures extraites des publications des CE 37, 77, 86 et
Service Clients - webstore.iec.ch/csc CISPR de l'IEC.

Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
sales@iec.ch.
IEC 63012 ®
Edition 1.0 2019-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Insulating liquids – Unused modified or blended esters for electrotechnical

applications
Isolants liquides – Esters neufs modifiés ou mélangés pour applications

électrotechniques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.040.10 ISBN 978-2-8322-6894-0

– 2 – IEC 63012:2019 © IEC 2019
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 9
4 Classification . 10
4.1 General . 10
4.2 Fire performance classification . 10
4.3 Viscosity classification . 10
5 Properties, significance and test methods . 10
5.1 Physical properties . 10
5.1.1 Appearance . 10
5.1.2 Colour . 11
5.1.3 Viscosity . 11
5.1.4 Lubricity . 11
5.1.5 Thermal conductivity . 11
5.1.6 Thermal expansion coefficient . 11
5.1.7 Specific heat capacity . 11
5.1.8 Pour point . 11
5.1.9 Water content . 12
5.1.10 Water saturation . 12
5.1.11 Density . 12
5.1.12 Interfacial tension . 12
5.2 Electrical properties . 12
5.2.1 AC breakdown voltage . 12
5.2.2 Lightning impulse breakdown voltage . 12
5.2.3 Partial discharge inception voltage (PDIV) . 13
5.2.4 Dielectric dissipation factor (DDF) . 13
5.2.5 Relative permittivity (dielectric constant) . 13
5.2.6 DC resistivity . 13
5.2.7 Electrostatic charging tendency (ECT) . 13
5.3 Chemical properties . 13
5.3.1 Acidity . 13
5.3.2 Additive content . 13
5.3.3 Corrosive and potentially corrosive sulphur compounds . 13
5.3.4 Methanol content . 14
5.4 Properties related to long term performance . 14
5.4.1 Oxidation stability . 14
5.4.2 Operating temperature . 14
5.4.3 Material compatibility . 15
5.4.4 Stray gassing . 15
5.4.5 Gassing tendency . 15
5.5 Health, safety and environmental properties . 15
5.5.1 General . 15
5.5.2 Polychlorinated biphenyls (PCBs) . 15
5.5.3 Environmental toxicity . 15

5.5.4 Flash point and fire point . 15
5.5.5 Sustainability . 16
5.5.6 Biodegradation . 16
5.5.7 Disposal . 16
6 Minimum performance requirements . 16
7 Identification and general delivery requirements . 16
Annex A (informative) Miscibility and compatibility of liquids and retrofilling of

transformers . 19
Bibliography . 20

Table 1 – Required performance characteristics of modified or blended esters . 17
Table 2 – Optional performance characteristics of modified or blended esters . 18

– 4 – IEC 63012:2019 © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INSULATING LIQUIDS – UNUSED MODIFIED OR BLENDED ESTERS
FOR ELECTROTECHNICAL APPLICATIONS

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, Publicly Available Specifications (PAS) 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 t
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.