Insulating liquids - Unused modified or blended esters for electrotechnical applications

IEC 60312:2019 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.

Isolierflüssigkeiten - Neue modifizierte oder verschnittene Ester für elektrotechnische Anwendungen

Isolants liquides - Esters neufs modifiés ou mélangés pour applications électrotechniques

L'IEC 60312:2019 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.

Izolacijske tekočine - Neuporabljeni modificirani ali mešani estri za uporabo v elektrotehniki

Ta standard določa zahteve za karakterizacijo neuporabljenih modificiranih estrov ali mešanic neuporabljenih estrov, ki se uporabljajo kot izolacijske tekočine za uporabo v elektrotehniki. Ne zajema tekočin, ki vsebujejo kakršen koli delež uporabljenih tekočin. Tekočine, zajete v tem dokumentu, se povečini uporabljajo za transformatorje. Neuporabljeni modificirani/sintetizirani estri so pridobljeni iz naravne ali sintetične osnove ali pa so mešanica obeh. Ta dokument zajema različne tekoče estre, ki niso zajeti v drugih standardih za naravne estre (IEC 62770) ali sintetične estre (IEC 61099). Ker obravnava različne kategorije tekočin, ta dokument zajema tudi širok razpon vrednosti določenih značilnosti delovanja. Pomembna lastnost je viskoznost, ki lahko vpliva na zasnovo in zmogljivost ohlajanja električne opreme. Kategorizacija je določena na podlagi kinematične viskoznosti različnih tekočin. Določena je kategorija za tekoče estre z nizko viskoznostjo.

General Information

Publication Date
Withdrawal Date
Current Stage
6060 - Document made available - Publishing
Start Date
Completion Date

Buy Standard

EN IEC 63012:2019
English language
25 pages
sale 10% off
sale 10% off
e-Library read for
1 day

Standards Content (Sample)

SIST EN IEC 63012:2019
Izolacijske tekočine - Neuporabljeni modificirani ali mešani estri za uporabo v
Insulating liquids - Unused modified or blended esters for electrotechnical applications
Ta slovenski standard je istoveten z: EN IEC 63012:2019
29.040.01 Izolacijski fluidi na splošno Insulating fluids in general
SIST EN IEC 63012:2019 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN IEC 63012:2019

---------------------- Page: 2 ----------------------
SIST EN IEC 63012:2019



July 2019
ICS 29.040.10

English Version
Insulating liquids - Unused modified or blended esters for
electrotechnical applications
(IEC 63012:2019)
Isolants liquides - Esters neufs modifiés ou mélangés pour Isolierflüssigkeiten – Neue modifizierte oder verschnittene
applications électrotechniques Ester für elektrotechnische Anwendungen
(IEC 63012:2019) (IEC 63012:2019)
This European Standard was approved by CENELEC on 2019-06-13. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 63012:2019 E

---------------------- Page: 3 ----------------------
SIST EN IEC 63012:2019
EN IEC 63012:2019 (E)
European foreword
The text of document 10/1078/FDIS, future edition 1 of IEC 63012, prepared by IEC/TC 10 "Fluids for
electrotechnical applications" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 63012:2019.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2020-03-13
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2022-06-13
document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 63012:2019 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
IEC 60076-14 NOTE Harmonized as EN 60076-14
IEC 60296 NOTE Harmonized as EN 60296
IEC 60422 NOTE Harmonized as EN 60422
IEC 61039 NOTE Harmonized as EN 61039
IEC 61203 NOTE Harmonized as EN 61203
IEC 61868 NOTE Harmonized as EN 61868
IEC 62975 NOTE Harmonized as EN IEC 62975
ISO 3015 NOTE Harmonized as EN ISO 3015

 Under preparation. Stage at the time of publication: prEN 62975.

---------------------- Page: 4 ----------------------
SIST EN IEC 63012:2019
EN IEC 63012:2019 (E)
Annex ZA

Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest ve

Questions, Comments and Discussion

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