In assessing which conductor material and what conductor size or what maximum allowable temperature limit needs to be applied in individual earthing design situations, the final choice should always reflect the considerations of Selection of conductors, Choice of materials, Conductor sizing factors etc.
Generally, the SC rating any component of power cable is based on adiabatic assumption for the overall duration of fault. i.e. the heat is retained in the component for the SC duration.
There are some standards available which are accepted globally that provides the guidelines for incorporating the calculations by non-adiabatic approach to leverage non-adiabatic heating effects.
At iEngineering, we can help you with a sustainable and cost effective earthing design solutions.
For more information, click here – https://ieng.tech/services/earthing-studies-emfi-analysis/