Electrical insulating materials – Thermal endurance properties – Part 3: Instructions for calculating thermal endurance characteristics
|Publication Date:||1 March 2021|
|ICS Code (Test conditions and procedures in general):||19.020|
|ICS Code (Other standards related to electricity and magnetism):||17.220.99|
This part of IEC 60216 specifies the calculation procedures used for deriving thermal endurance characteristics from experimental data obtained in accordance with the instructions of IEC 60216-1 and IEC 60216-2 1, using fixed ageing temperatures and variable ageing times.
The experimental data can be obtained using non-destructive, destructive or proof tests. Data obtained from non-destructive or proof tests can be incomplete, in that it is possible that measurement of times taken to reach the end-point will have been terminated at some point after the median time but before all specimens have reached end-point.
The procedures are illustrated by worked examples, and suitable computer programs are recommended to facilitate the calculations.
1 Numbers in square brackets refer to the bibliography.