Norm

NEN-EN-IEC 62021-3:2014 en

Isolatievloeistoffen - Bepaling van de zuurgraad - Deel 3: Beproevingsmethoden voor niet-minerale isolatie-oli?n

135,85

Over deze norm

Status Definitief
Aantal pagina's 50
Commissie Vloeistoffen voor elektrotechnische doeleinden
Gepubliceerd op 01-11-2014
Taal Engels
NEN-EN-IEC 62021-3 describes two procedures for the determination of the acidity of unused and used electrical non-mineral insulating oils. Method A is potentiometric titration and Method B is colourimetric titration. The method may be used to indicate relative changes that occur in non-mineral insulating oil during use under oxidizing conditions regardless of the colour or other properties of the resulting non-mineral oil. The acidity can be used in the quality control of unused non-mineral insulating oil. As a variety of oxidation products present in used non-mineral insulating oil contribute to acidity and these products vary widely in their corrosion properties, the test cannot be used to predict corrosiveness of non-mineral insulating oil under service conditions.

Details

ICS-code 29.040.10
Nederlandse titel Isolatievloeistoffen - Bepaling van de zuurgraad - Deel 3: Beproevingsmethoden voor niet-minerale isolatie-oli?n
Engelse titel Insulating liquids - Determination of acidity - Part 3: Test methods for non mineral insulating oils

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