Fluids for electrotechnical applications - Unused natural esters for transformers and similar electrical equipment

IEC 62770:2013 describes specifications and test methods for unused natural esters in transformers and similar oil-impregnated electrical equipment in which a liquid is required as an insulating and heat transfer medium. Natural esters with additives are within the scope of this standard. Because of their different chemical composition, natural esters differ from insulating mineral oils and other insulating fluids that have high fire points, such as synthetic esters or silicone fluids. Natural, ester-derived insulating fluids with low viscosity have been introduced but are not covered by this standard. Pertinent properties of such fluids are given in Annex B. This standard is applicable only to unused natural esters. Reclaimed natural esters and natural esters blended with non-natural esters fluids are beyond the scope of this standard.

Flüssigkeiten für elektrotechnische Anwendungen - Neue natürliche Ester für Transformatoren und ähnliche elektrische Betriebsmittel

Fluides pour applications électrotechniques - Esters naturels neufs pour transformateurs et matériels électriques analogues

La CEI 62770:2013 décrit les spécifications et méthodes d'essai applicables aux esters naturels neufs dans les transformateurs et matériels électriques imprégnés d'huile analogues nécessitant un liquide en tant que milieu isolant et caloporteur. Les esters naturels avec additifs entrent dans le domaine d'application de la présente norme. En raison de leur composition chimique différente, les esters naturels se distinguent des huiles minérales isolantes et d'autres fluides isolants qui possèdent des points de feu élevés, tels que les esters synthétiques ou les fluides silicones. Les fluides isolants dérivés d'esters naturels présentant une faible viscosité ont été introduits, mais ne sont pas couverts par la présente norme. Les propriétés pertinentes de ces fluides sont indiquées dans l'Annexe B. La présente norme n'est applicable qu'aux esters naturels neufs. Les esters naturels régénérés et les esters naturels mélangés à des fluides à base d'esters non naturels n'entrent pas dans le domaine d'application de cette norme.

Tekočine za elektrotehniko - Neuporabljene naravne estrske tekočine za transformatorje in podobno električno opremo (IEC 62770:2013)

EN IEC 62770 opisuje specifikacije in preskusne metode za neuporabljene naravne estrske tekočine za transformatorje in podobno oljno impregnirano električno opremo, kjer je tekočina potrebna kot sredstvo za izolacijo in prenos toplote. Uporaba naravnih estrov ni priporočena za električno opremo, ki je izpostavljena atmosferskim vplivom. V tem standardu se izraz „naravni estri“ nanaša na izolacijske tekočine za transformatorje in podobno elektronsko opremo ustrezne biorazgradljivosti in okoljske združljivosti. Takšni naravni estri so rastlinska olja, pridobljena iz semen, in olja, pridobljena iz drugih primernih bioloških materialov, ter dovedena do določene točke v določenem času. Ta olja so sestavljena iz trigliceridov. Ta standard zajema naravne estre z dodatki. Naravni estri se zaradi drugačne kemične sestave razlikujejo od izolacijskih mineralnih olj in drugih izolacijskih tekočin, ki imajo visoka gorišča, kot so sintetični estri ali silikonske tekočine. Naravne nizkoviskozne izolacijske tekočine iz estrov so predstavljene, vendar jih ta standard ne zajema. Zadevne lastnosti takšnih tekočin so podane v Dodatku B. Ta standard zajema samo neuporabljene naravne estre. Ponovno uporabljeni naravni estri in naravni estri, zmešani z nenaravnimi estrskimi tekočinami, niso vključeni v obseg tega standarda. Kemijska nomenklatura in znanstvene oznake, uporabljene v tem standardu, so skladne s priročnikom Mednarodne zveze za čisto in uporabno kemijo (IUPAC) o količinah, enotah in simbolih v fizikalni kemiji.

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Standards Content (Sample)

SIST EN 62770:2014
Fluids for electrotechnical applications - Unused natural esters liquids for transformers
and similar electrical equipment
Fluides pour applications électrotechniques - Esters naturels neufs pour transformateurs
et matériels électriques analogues
Ta slovenski standard je istoveten z: EN 62770:2014
29.040.01 Izolacijski fluidi na splošno Insulating fluids in general
29.180 Transformatorji. Dušilke Transformers. Reactors
SIST EN 62770:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 62770:2014

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SIST EN 62770:2014

EN 62770

April 2014

ICS 29.040

English version

Fluids for electrotechnical applications -
Unused natural esters for transformers and similar electrical equipment
(IEC 62770:2013)

Fluides pour applications Flüssigkeiten für elektrotechnische
électrotechniques - Anwendungen -
Esters naturels neufs pour Neue natürliche Ester für Transformatoren
transformateurs et matériels électriques und ähnliche elektrische Betriebsmittel
analogues (IEC 62770:2013)
(CEI 62770:2013)

This European Standard was approved by CENELEC on 2013-12-24. 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, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, 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: Avenue Marnix 17, B - 1000 Brussels

© 2014 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62770:2014 E

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SIST EN 62770:2014
EN 62770:2014 - 2 -
The text of document 10/909/FDIS, future edition 1 of IEC 62770, prepared by IEC TC 10 "Fluids for
electrotechnical applications" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 62770:2014.
The following dates are fixed:

• latest date by which the document has (dop) 2014-10-18
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2016-12-24
• latest date by which the national
standards conflicting with the

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 [and/or CEN] shall not be held responsible for identifying any or all such patent

Endorsement notice
The text of the International Standard IEC 62770:2013 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 60422 NOTE Harmonised as EN 60422.
IEC 61039 NOTE Harmonised as EN 61039.
IEC 61099 NOTE Harmonised as EN 61099.
IEC 61868 NOTE Harmonised as EN 61868.

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SIST EN 62770:2014
- 3 - EN 62770:2014
Annex ZA

Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD

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