Impedance of outersheath

Definition according to Cigré guide 531 chapter 4.2.1

Symbol
$\mathscr{z}_{os}$
Unit
$\Omega$/m
Formulae
$\mathscr{z}_{34}$without armour
$\mathscr{z}_{56}$with armour
Related
$\mathscr{z}_{56}$
Impedance of jacket [$\Omega$/m]
Used in
$\mathscr{z}_{ss}$