Total thermal resistance of cable per conductor.

Symbol
$T_{\mathrm{r}}$
Unit
K.m/W
Formulae
$T_{\mathrm{1}} + n_{\mathrm{c}} \left(T_{\mathrm{2}} + T_{\mathrm{3}}\right) + n_{\mathrm{cc}} \left(T_{\mathrm{4i}} + T_{\mathrm{4ii}} + T_{\mathrm{4\mu}} v_{\mathrm{4}}\right)$
Related
$n_{\mathrm{c}}$
$n_{\mathrm{cc}}$
$T_{\mathrm{3}}$
$T_{\mathrm{4ii}}$
$T_{\mathrm{4\mu}}$
Used in
$\gamma_{\mathrm{X}}$