Spacing from centre of hottest cable for a single line source representing the heating effect of all other cables in a group.

Symbol
$d_{\mathrm{f}}$
Unit
m
Formulae
$4 F_{\mathrm{eq}}^{- \frac{1}{N_{\mathrm{c}} - 1}} L_{\mathrm{cm}}$
Related
$F_{\mathrm{eq}}$
$L_{\mathrm{cm}}$
$N_{\mathrm{c}}$
Used in
$\gamma_{\mathrm{t}}$