Cableizer
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Parameter $\xi$ for calculation of loss factor

Used for flat and rectangular formation, not transposed.

Symbol
$\xi_X$
Formulae
$\frac{2R_e P_X Q_X X_m}{\sqrt{3} \left({R_e}^2+{P_X}^2\right) \left({R_e}^2+{Q_X}^2\right)}$$\xi_{{X_1}}$
$\frac{0.25{Q_X}^2}{{R_e}^2+{Q_X}^2}$$\xi_{{X_2}}$
$\frac{0.75{P_X}^2}{{R_e}^2+{P_X}^2}$$\xi_{{X_3}}$
Related
$P_X$
Substitution coefficient P to calculate loss factor by circulating currents
$Q_X$
Substitution coefficient Q to calculate loss factor by circulating currents
$R_e$
Electrical resistance of shield and armour [$\Omega$/m]
$X_m$
Mutual reactance between conductors flat formation without transposition [$\Omega$/m]
Used in
$\lambda_{11}$
Loss factor of shield by circulating currents