Symbol
$Q_{\mathrm{B_{\mathrm{f}}}}$
Unit
J/m.K
Formulae
$0$single-core cables
$\frac{Q_{\mathrm{f}} q_{\mathrm{f}}}{T_{\mathrm{B}}^{2}} \left(T_{\mathrm{2}} + T_{\mathrm{3}} + T_{\mathrm{4i}} + T_{\mathrm{4ii}}\right)^{2}$multi-core cables
Related
$Q_{\mathrm{f}}$
$T_{\mathrm{3}}$
$T_{\mathrm{4ii}}$
Used in
$Q_{\mathrm{B}}$