Cover E DIN EN IEC 60216-6 VDE 0304-26:2020-08
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E DIN EN IEC 60216-6 VDE 0304-26:2020-08

* German Language Version *

Electrical insulating materials – Thermal endurance properties

Part 6: Determination of thermal endurance indices (TI and RTI) of an insulating material using the fixed time frame method

(IEC 112/476/CD:2019); Text in German and English
Class/Status: Draft, valid
Released: 2020-08   Published: 2020-07-17
VDE Art. No.: 1300114
End of objection deadline: 2020-09-17

This part of IEC 60216 specifies the experimental and calculation procedures for deriving the thermal endurance characteristics, temperature index (TI) and relative temperature index (RTI) of a material using the "fixed time frame method (FTFM)".
In this protocol, the ageing takes place for a small number of fixed times, using the appropriate number of ageing temperatures throughout each time, the properties of the specimens being measured at the end of the relevant time interval. This differs from the procedure of IEC 60216-1, where ageing is conducted at a small number of fixed temperatures, property measurement taking place after ageing times dependent on the progress of ageing.