EN 62535:2009
(Main)Insulating liquids - Test method for detection of potentially corrosive sulphur in used and unused insulating oil
Insulating liquids - Test method for detection of potentially corrosive sulphur in used and unused insulating oil
IEC 62535:2008 specifies a test method for detection of potentially corrosive sulphur in used and unused mineral insulating oil. Most recent failures due to corrosive sulphur are related to the formation of copper sulphide deposits in and on the surface of winding cellulosic paper. The test method uses a copper conductor, wrapped with one layer of paper, immersed in the oil and heated to evaluate the capability of the oil to yield copper sulphide and transfer it to paper layers. The growth of copper sulphide on bare copper may cause the presence of conductive particulates in the oil, which can act as nuclei for electrical discharge and may lead to a fault. Other test methods exist using a bare copper strip immersed in oil and heated to detect the corrosive behaviour of oil against copper. ASTM D1275 Method B is also used for this test and a modified procedure using low oil volumes is included in Annex A. Tests with and without paper are considered as complementary and may lead to different results.
Isolierflüssigkeiten - Prüfverfahren für den Nachweis von potenziell korrosivem Schwefel in gebrauchtem und ungebrauchtem Isolieröl
Liquides isolants - Méthode d'essai pour la détection du soufre potentiellement corrosif dans les huiles usagées et neuves
La CEI 62535 :2008 spécifie une méthode d'essai relative à la détection du soufre potentiellement corrosif dans les huiles minérales isolantes usagées et neuves. La plupart des défaillances récentes du fait du soufre corrosif sont liées à la formation de dépôts de sulfure de cuivre dans et à la surface du papier cellulosique de l'enroulement. La méthode d'essai utilise un conducteur en cuivre, recouvert d'une couche de papier, immergé dans l'huile et chauffé pour évaluer la capacité de l'huile à produire du sulfure de cuivre et le transférer sur les couches de papier. La croissance du sulfure de cuivre sur le cuivre nu peut provoquer la présence de particules conductrices dans l'huile, qui peuvent agir comme des noyaux pour la décharge électrique et peuvent conduire à un défaut. D'autres méthodes d'essai qui utilisent une bande de cuivre nu immergée dans l'huile et chauffée existent pour détecter le comportement corrosif de l'huile par rapport au cuivre. La norme ASTM D1275, méthode B est également utilisée pour cet essai et une procédure modifiée utilisant de faibles volumes d'huile est incluse dans l'Annexe A. Des essais avec et sans papier sont considérés comme complémentaires et peuvent conduire à des résultats différents.
Izolacijske tekočine - Preskusne metode za odkrivanje potencialno korozivnega žvepla v rabljenem in nerabljenem izolacijskem olju (IEC 62535:2008)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 62535:2009
01-april-2009
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Insulating liquids - Test method for detection of potentially corrosive sulphur in used and
unused insulating oil (IEC 62535:2008)
Isolierflüssigkeiten - Prüfverfahren für den Nachweis von potenziell korrosivem Schwefel
in gebrauchtem und ungebrauchtem Isolieröl (IEC 62535:2008)
Liquides isolants - Méthode d'essai pour la détection du soufre potentiellement corrosif
dans les huiles usagées et neuves (CEI 62535:2008)
Ta slovenski standard je istoveten z: EN 62535:2009
ICS:
29.040.10 Izolacijska olja Insulating oils
SIST EN 62535:2009 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 62535:2009
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SIST EN 62535:2009
EUROPEAN STANDARD
EN 62535
NORME EUROPÉENNE
January 2009
EUROPÄISCHE NORM
ICS 29.040.10
English version
Insulating liquids -
Test method for detection of potentially corrosive sulphur
in used and unused insulating oil
(IEC 62535:2008)
Liquides isolants - Isolierflüssigkeiten -
Méthode d'essai pour la détection Prüfverfahren für den Nachweis
du soufre potentiellement corrosif von potenziell korrosivem Schwefel in
dans les huiles usagées et neuves gebrauchtem und ungebrauchtem Isolieröl
(CEI 62535:2008) (IEC 62535:2008)
This European Standard was approved by CENELEC on 2008-12-01. 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, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: avenue Marnix 17, B - 1000 Brussels
© 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62535:2009 E
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SIST EN 62535:2009
EN 62535:2009 – 2 –
Foreword
The text of document 10/746/FDIS, future edition 1 of IEC 62535, prepared by IEC TC 10, Fluids for
electrotechnical applications, was submitted to the IEC-CENELEC parallel vote and was approved by
CENELEC as EN 62535 on 2008-12-01.
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) 2009-09-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2011-12-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62535:2008 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 60567 NOTE Harmonized as EN 60567:2005 (not modified).
__________
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SIST EN 62535:2009
– 3 – EN 62535:2009
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. 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
applies.
Publication Year Title EN/HD Year
1)
- Copper and copper alloys - Copper rod, bar EN 13601 -
-
and wire for general electrical purposes
1)
IEC 60475 - Method of sampling liquid dielectrics - -
1)
IEC 60554-3-1 - Specification for cellulosic paper
...
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