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Electrical insulation systems (EIS) - Thermal evaluation of combined liquid and solid components - Part 2: Simplified test
Electrical insulation systems (EIS) - Thermal evaluation of combined liquid and solid components
Part 2: Simplified test
IEC TS 62332-2:2014 is applicable to EIS containing solid and liquid components where the thermal stress is the dominant ageing factor, without restriction to voltage class.
This part specifies a sealed tube test procedure for the thermal evaluation and qualification of electrical insulation systems (EIS).
One aspect of this procedure is to also provide a method to assign thermal classifications to materials used in EIS where solid and liquid components are both used.
This procedure describes a comparative ageing method whereby a reference system composed of kraft paper and mineral oil is compared to a candidate system of any combination of solid and insulating liquid.
The test procedures in this part are specifically applicable to liquid immersed transformer insulation systems.
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