Cableizer ®

Ratio of losses jacket

Ratio of losses in conductor, screen/sheath and armour to losses in conductor affecting jacket. Voltage-dependent losses (dielectric losses) are not included in this ratio.

Symbol
$q_{3}$
Formulas
$1+\lambda_{1}+\lambda_{2}+\lambda_{3}$
Related
$\lambda_{1}$
Loss factor shield (screen/sheath)
$\lambda_{2}$
Loss factor armour
$\lambda_{3}$
Loss factor steel pipe pipe-type cable
Used in
$Q_{B,j}$
Thermal capacitance B transient thermal circuit, jacket [J/(m.K)]
$T_{B}$
Thermal resistance B transient thermal circuit [K.m/W]