Impedance of conductor-screen

Definition according to Cigré guide 531 chapter 4.2.1

Symbol
$\mathscr{z}_{cs}$
Unit
$\Omega$/m
Formulae
$\mathscr{z}_{ss}-\mathscr{z}_4$
Related
$\mathscr{z}_4$
$\mathscr{z}_{ss}$