IEC 60085 Ed. 4.0 b PDF
IEC 60085 Ed. 4.0 b PDF
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IEC 60085 Ed. 4.0 b PDF

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Electrical insulation – Thermal evaluation and designation

Published byPublication DateNumber of Pages
IEC11/07/200716
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IEC 60085 Ed. 4.0 b – Electrical insulation – Thermal evaluation and designation

This International Standard now distinguishes between thermal classes for electrical insulation systems and electrical insulating materials. It establishes the criteria for evaluating the thermal endurance of either electrical insulating materials (EIM) or electrical insulation systems (EIS). It also establishes the procedure for assigning thermal classes. This standard is applicable where the thermal factor is the dominant ageing factor. The major technical changes with regard to the previous edition concern the fact that this edition is an amalgamation of the third edition of this standard together with IEC 62114:2001.

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