Cableizer ®

Ohmic steady-state temperature rise

Permissible steady-state temperature rise of the conductor due to joule losses.

Symbol
$\delta \theta_{c}$
Unit
K
Formulas
$\theta_{c}-W_{d} \left(\frac{T_{A}}{2}+T_{3}+T_{4iii}\right)$
Related
$T_{3}$
Thermal resistance jacket [K.m/W]
$T_{4iii}$
Thermal resistance ambient [K.m/W]
$T_{A}$
Thermal resistance A transient thermal circuit [K.m/W]
$\theta_{c}$
Temperature conductor [°C]
$W_{d}$
Dielectric losses (phase) [W/m]
Used in
$\delta \theta_{SPK}$
Peak cyclic temperature rise [K]