IEC TR 63025:2021 

Insulating liquids - Quantitative determination of methanol and ethanol in insulating liquids


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IEC TR 63025:2021(E) specifies two test methods for methanol and ethanol determination in insulating liquids.
Methanol (MeOH) and ethanol (EtOH) are two light alcohols generated during the degradation process of cellulosic materials. They are soluble in insulating liquids so they can be regarded as ageing tracers whose concentrations in oil reflect the degradation of insulating cellulosic materials in liquid-impregnated transformers.

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Additional information

Publication typeTechnical Report
Publication date2021-07-12
Available language(s)English
TC/SCTC 10 - Fluids for electrotechnical applicationsrss
ICS29.040.10 - Insulating oils
Stability date  2026
File size1456 KB

The following test report forms are related:

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