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Parameter m of screen

Definition according to Cigré guide 531 chapter 4.2.2.5

Symbol
$m_{z,sc}$
Formulae
$\sqrt{\frac{j \omega \mu_0}{\rho_{sc}}}$
Related
$\mu_0$
Vacuum permeability [H/m]
$\omega$
Angular frequency [rad/s]
$\rho_{sc}$
Specific electrical resistivity of screen material [$\Omega$.m]
Used in
$\mathscr{z}_{3,sc}$
Impedance of screen inner surface [$\Omega$/m]
$\mathscr{z}_{4,s}$
Mutual impedance of shield [$\Omega$/m]
$\mathscr{z}_{4,sc}$
Mutual impedance of screen [$\Omega$/m]
$\mathscr{z}_{5,sc}$
Impedance of screen outer surface [$\Omega$/m]