Loss factor screen, circulating currents

This is the loss factor used to calculate the current $I_c$ for both-side bonded cables with screen and sheath. Please refer to CIGRE TB 880 chapter 5.1.5 (case study 1).

In all other cases it is the same as $\lambda_1$.

Symbol
$\lambda_{1s}$
Formulas
$\lambda_1$general case
$\lambda_{11,sc}$both-side bonding, with screen+sheath, CIGRE TB 880 Guidance Point 6