# Maximum permissible conductor temperature rise

Value of the conductor temperature rise above ambient in the steady-state due to Joule losses, i.e. the standard maximum permissible temperature rise.

Symbol
$\Delta \theta_{R,\infty}$
Unit
°C
Formulae
$\theta_{cmax}-\theta_a-\Delta \theta_d$
Related
$\Delta \theta_d$
$\theta_a$
$\theta_{cmax}$
Used in
$I_2$