Corrected transient temperature rise of conductor

This is the corrected transient conductor temperature rise above ambient temperature caused by the change in conductor resistance with temperature during the transient period.

$\theta_{c_0}$ is the conductor temperature at the start of the transient.

Symbol
$\Delta \theta_{a_{t}}$
Unit
K
Formulae
$\frac{\Delta \theta_{t}}{1 + \frac{\operatorname{abs}{\left(- \Delta \theta_{t} + \Delta \theta_{t_{\infty}} \right)}}{\beta_{c} + \theta_{c 0}}}$
$\Delta \theta_{t_{\infty}}$