Resistance of screen and sheath at 20°C

Equivalent resistance of screen $R_{sco}$ and resistance of sheath $R_{sho}$ in parallel at 20°C.

Symbol
$R_{so}$
Unit
$\Omega$/m
Formulae
$\frac{R_{sc} R_{sh}}{R_{sc}+R_{sh}}$Single-core cables
$\frac{R_{sc} R_{sh}}{R_{sc}+R_{sh}}$Multi-core cables type SS
$\frac{3R_{sc} R_{sh}}{R_{sc}+3R_{sh}}$Multi-core cables type SC
$\frac{3R_{sc} R_{sh}}{3\left(R_{sh}+R_{sc}\right)}$Multi-core cables type CC
$0$without screen and sheath
Related
$R_{sc}$
$R_{sh}$
Used in
$R_0$