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Ratio of losses affecting jacket

Ratio of losses in conductor, screen/sheath and armour to losses in conductor.

Symbol
$q_3$
Formulae
$1+\lambda_1+\lambda_2+\lambda_3$
Related
$\lambda_1$
Loss factor of shield (screen and sheath)
$\lambda_2$
Loss factor of armour
$\lambda_3$
Loss factor of steel pipes for pipe-type cables
Used in
$Q_{B,j}$
Element B of two-part thermal circuit, jacket [J/(m.K)]
$T_B$
Element B of equivalent thermal circuit [K.m/W]