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Electrical resistance of sheath

Symbol
$R_{sh}$
Unit
$\Omega$/m
Formulae
${10}^6\frac{\rho_{sh}}{A_{sh}}$at 20°C
$R_{sh} \left(1+\alpha_{sh} \left(\theta_{sh}-20\right)\right)$at operating temperature
Related
$A_{sh}$
Cross-sectional area of sheath [mm$^2$]
$\alpha_{sh}$
Temperature coefficient of sheath material [1/K]
$\rho_{sh}$
Specific electrical resistivity of sheath material [$\Omega$.m]
$\theta_{sh}$
Temperature of sheath [°C]
Used in
$R_e$
Electrical resistance of shield and armour [$\Omega$/m]
$R_s$
Electrical resistance of shield [$\Omega$/m]
$R_{so}$
Resistance of screen and sheath at 20°C [$\Omega$/m]