Thermal resistance of the bedding between sheath and armour.

Symbol
$T_{\mathrm{2_{\mathrm{1}}}}$
Unit
K.m/W
Formulae
$\frac{\rho_{\mathrm{ab}}}{2 \pi} \ln{\left (1 + \frac{2 t_{\mathrm{2}}}{D_{\mathrm{s}}} \right )}$general case
$\frac{G_{\mathrm{2}} \rho_{\mathrm{f}}}{6 \pi} + \frac{\rho_{\mathrm{ab}}}{2 \pi} \ln{\left (\frac{2 t_{\mathrm{ab_{\mathrm{1}}}}}{d_{\mathrm{a_{\mathrm{1}}}} - d_{\mathrm{f_{\mathrm{1}}}} - 2 t_{\mathrm{ab_{\mathrm{1}}}}} + 1 \right )}$multi-core cables type SS with sheath
Related
$d_{\mathrm{a_{\mathrm{1}}}}$
$d_{\mathrm{f_{\mathrm{1}}}}$
$\rho_{\mathrm{ab}}$
$\rho_{\mathrm{f}}$
$t_{\mathrm{ab_{\mathrm{1}}}}$
Used in
$T_{\mathrm{2}}$
$\theta_{\mathrm{ar_{\mathrm{1}}}}$