# Mutual thermal resistance between object(s) per slice

Mutual thermal resistance between the rated object and the crossing object with several crossings.

Symbol
$T_{mh,v}$
Unit
K.m/W
Formulae
 $e^{-\nu \gamma_X \Delta z} \ln\left(\frac{\left(L_r+L_h\right)^2+\left(\nu \Delta z \mathrm{sin}\beta\right)^2}{\left(L_r-L_h\right)^2+\left(\nu \Delta z \mathrm{sin}\beta\right)^2}\right)$ single source crossing $e^{-\nu \gamma_X \Delta z} \ln\left(\frac{\left(L_r+L_h\right)^2+\left(\left(|z_r-z_h|+\nu \Delta z\right) \mathrm{sin}\beta\right)^2}{\left(L_r-L_h\right)^2+\left(\left(|z_r-z_h|+\nu \Delta z\right) \mathrm{sin}\beta\right)^2}\right)$ several crossings
Related
$\Delta z$
$\gamma_X$
$L_h$
$L_r$
$T_{mh}$
$z_h$
$z_r$