Substitution coefficient $g_s$ for eddy-currents

Symbol
$g_s$
Formulae
$1+\left(\frac{t_{sc}+t_{scs}+t_{sh}}{D_{sh}}\right)^{1.74} \left({10}^{-3}\beta_1 D_{sh}-1.6\right)$Cables
$1+\left(\frac{t_{encl}}{D_{encl}}\right)^{1.74} \left(\beta_1 D_{encl}-1.6\right)$PAC/GIL