When a non-magnetic armour is present, $R_s$ is replaced by $R_e$ in the following formula.

Symbol
$m_{\mathrm{0}}$
Unit
Hz.m/Ω
Formulae
$\frac{\omega}{R_{\mathrm{s}}} 1.0 \cdot 10^{-7}$cable
$\frac{\omega}{R_{\mathrm{encl}}} 1.0 \cdot 10^{-7}$GIL
Related
$\omega$
$R_{\mathrm{e}}$
$R_{\mathrm{encl}}$
Used in
$\Delta _{\mathrm{1}}$