Self reactance of conductor

Definition according to Cigré guide 531 chapter 4.2.3.4.

Symbol
$X_c$
Unit
$\Omega$/m
Formulae
$\frac{\omega \mu_0}{2\pi} \ln\left(\frac{a_m}{GMR}\right)$symmetric system
$\frac{\omega \mu_0}{2\pi} \ln\left(\frac{L_{earth}}{GMR}\right)$single phase with earth return
Used in
$B$
$SI$
Surge Impedance [$\Omega$]
$V_{drop}$
Voltage drop [V/A/km]
$Z_{pos}$