Cableizer
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Incremental heat generated

Incremental heat generated due to change of conductor resistance.

Symbol
$\Delta W$
Unit
W
Formulae
$\frac{R_c \alpha_c {I_c}^2}{1+\alpha_c \left(\theta_{cmax}-\Delta \theta_{0x}-20\right)}$first step
$\Delta W \left(1-\frac{\Delta \theta_{0x}}{\Delta \theta_{max}-\Delta \theta_d}\right)$second step
Related
$\alpha_c$
Temperature coefficient of conductor material [1/K]
$\Delta \theta_{0x}$
Temperature rise by crossing heat sources [K]
$\Delta \theta_d$
Temperature rise by dielectric losses [K]
$\Delta \theta_{max}$
Maximum permissible conductor temperature rise [K]
$I_c$
Conductor current [A]
$R_c$
Electrical resistance of conductor [$\Omega$/m]
$\theta_{cmax}$
Max. conductor temperature [°C]
Used in
$\gamma_X$
Attenuation factor for crossing [1/m]