IEC 60085:2007
Electrical insulation - Thermal evaluation and designation
https://webstore.iec.ch/en/publication/666
Normative references
IEC 60216-1: Electrical insulating materials – Properties of thermal endurance – Part 1: Ageing procedures and evaluation of test results
IEC 60216-5, Electrical insulating materials – Thermal endurance properties – Part 5: Determination of relative thermal endurance index (RTE) of an insulating material
IEC 60505: Evaluation and qualification of electrical insulation systems
IEC 61857 (all parts), Electrical insulation systems – Procedures for thermal evaluation
IEC 61858, Electrical insulation systems – Thermal evaluation of modifications to an established wire-wound EIS
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