Temperature rise of the conductor by source h

Temperature rise of the conductor(s) of the rated cable, due to crossing heat source h, at the hottest point in the cable route.

Symbol
$\Delta \theta_{0x_{h}}$
Unit
K
Formulae
$\frac{W_{h} \rho \ln{\left(\frac{\left(L_{h} + L_{r}\right)^{2} + \left(- z_{h} + z_{r}\right)^{2}}{\left(- L_{h} + L_{r}\right)^{2} + \left(- z_{h} + z_{r}\right)^{2}} \right)}}{4 \pi}$
Related
$\Delta \theta_{0x_{1}}$