# Skin and proximity effect factor for GIL conductor

The proximitiy effect is negligible compared to the skin effect for GIL conductors.

Symbol
$y_{c}$
Formulae
 $a_{c} \left(- b_{c} \gamma_{c}^{2} - \frac{\gamma_{c}}{2} + 1\right)$ Elektra 125 (1989) $y_{p} + y_{s}$ IEC 60287-1-1
Used in
$R_{c}$