Positive sequence resistance

Definition according to 'Fundamentals of calculation of earth potential rise in the underground power distribution cable network' (Parsoatam1997)

Symbol
$R_{1}$
Unit
$\Omega$/m
Formulas
$R_{c}$general case
$R_{cDC} \left(1+\lambda_{2}\right)$armoured three-core cables bonded at both sides
$R_{cDC} \left(1+y_{p}+y_{s}+\lambda_{1}+\lambda_{2}+\lambda_{3}\right)$pipe-type cables
Used in
$Z_{1}$