BS EN IEC 61125:2018 - Insulating liquids. Test methods for oxidation stability. Test method for evaluating the oxidation stability of insulating liquids in the delivered state

BS EN IEC 61125:2018

Insulating liquids. Test methods for oxidation stability. Test method for evaluating the oxidation stability of insulating liquids in the delivered state

Status : Current   Published : April 2018

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PDF

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HARDCOPY



IEC 61125:2018 describes a test method for evaluating the oxidation stability of insulating liquids in the delivered state under accelerated conditions regardless of whether or not antioxidant additives are present. The duration of the test can be different depending on the insulating liquid type and is defined in the corresponding standards (e.g. in IEC 60296, IEC 61099, IEC 62770). The method can be used for measuring the induction period, the test being continued until the volatile acidity significantly exceeds 0,10 mg KOH/g in the case of mineral oils. This value can be significantly higher in the case of ester liquids.


Additional test methods such as those described in IEC TR 62036 based on differential scanning calorimetry can also be used as screening tests, but are out of the scope of this document.


This second edition cancels and replaces the first edition published in 1992 and Amendment 1: 2004. This edition constitutes a technical revision.


This edition includes the following significant technical changes with respect to the previous edition:


a) the title has been modified to include insulating liquids different from mineral insulating oils (hydrocarbon);


b) the method applies for insulating liquids in the delivered state;


c) former Method C is now the main normative method;


d) precision data of the main normative method has been updated concerning the dissipation factor;


e) former Method A has been deleted;


f) former Method B has been transferred to Annex B;


g) a new method evaluating the thermo-oxidative behaviour of esters is included in Annex C.




Standard NumberBS EN IEC 61125:2018
TitleInsulating liquids. Test methods for oxidation stability. Test method for evaluating the oxidation stability of insulating liquids in the delivered state
StatusCurrent
Publication Date24 April 2018
Normative References(Required to achieve compliance to this standard)IEC 60422:2013, EN 60422:2013, ISO 6344-1, ISO 3104, IEC 62021-3, EN 62021-3, ISO 4793, EN 62021-2, EN 60247, ISO 383, EN ISO 3104, IEC 62021-2, ASTM E287, IEC 60247
Informative References(Provided for Information)EN 62770, IEC 60296, EN 61099, IEC TR 62036, IEC 62770, IEC 60666, IEC 62021-1, EN 60296, IEC 61099, EN 60666, EN 62021-1, IEC 60050-212
ReplacesBS EN 61125:1993, IEC 61125:1992
International RelationshipsEN 60601-1-11:2010,EN IEC 61125:2018,IEC 61125:2018
Draft Superseded By18/30339834 DC
DescriptorsChemical analysis and testing, Chemical-resistance tests, Petroleum products, Testing conditions, Oxidation resistance, Specimen preparation, Filters, Oils, Accelerated testing, Precipitation methods, Acidity, Mineral oils, Thermometers, Catalysis, Test equipment, Precision, Oxidation methods, Insulating oils, Accuracy, Volumetric analysis
ICS29.040.10
Title in FrenchIsolants liquides. Méthodes d'essai de la stabilité à l'oxydation. Méthode d'essai pour évaluer la stabilité à l'oxydation des isolants liquides tels que livrés
Title in GermanIsolierflüssigkeiten. Prüfverfahren für die Oxidationsbeständigkeit. Prüfverfahren zur Evaluierung der Oxidationsbeständigkeit von neuen Isolierflüssigkeiten
CommitteeGEL/10
ISBN978 0 580 93856 6
PublisherBSI
FormatA4
DeliveryYes
Pages34
File Size1.01 MB
Price£214.00


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