Ratio of losses filler

Ratio of losses in conductor and screen/sheath to losses in conductor affecting the filler of multi-core cables. Voltage-dependent losses (dielectric losses) are not included in this ratio.

Symbol
$q_{f}$
Formulas
$1+\lambda_{1}$separate screen / separate sheaths (type SS)
$1+\frac{\lambda_{1}}{2}$separate screen / common sheath (type SC)
$1$common screen / common sheath (type CC)