Cableizer ®

Substitution coefficient $g_s$ for eddy-currents

Symbol
$g_{s}$
Formulas
$1+\left(\frac{t_{sc}+t_{scs}+t_{sh}}{D_{sh}}\right)^{1.74} \left({10}^{-3}\beta_{1} D_{sh}-1.6\right)$Cables, screen and sheath
$1+\left(\frac{t_{sh}}{D_{sh}}\right)^{1.74} \left({10}^{-3}\beta_{1} D_{sh}-1.6\right)$Cables, only sheath, CIGRE TB 880 Guidance Point 26
$1+\left(\frac{t_{encl}}{D_{encl}}\right)^{1.74} \left(\beta_{1} D_{encl}-1.6\right)$PAC/GIL
Related
$\beta_{1}$
Substitution coefficient $\beta_1$ for eddy-currents
$D_{encl}$
Diameter enclosure (outer) [m]
$D_{sh}$
Diameter over sheath [mm]
$e$
Constant $e$ [m/s$^2$]
$t_{encl}$
Thickness enclosure [m]
$t_{sc}$
Thickness screen [mm]
$t_{scs}$
Thickness screen serving [mm]
$t_{sh}$
Thickness sheath [mm]
Used in
$\lambda_{12}$
Loss factor shield, eddy currents