Temperature rise by other buried objects

This is the temperature rise above ambient at the surface of the pth cable, whose rating is being determined, caused by the power dissipated by the other (q - 1) cables in the group. The term $\Delta\theta_{pp}$ is excluded from the summation. The influence of touching cables or ducts is exluded from the summation.

For cables in air, $\Delta\theta_p$ is 0.

Symbol
$\Delta \theta_{p}$
Unit
K
Formulae
$\sum\limits_{k=1}^q \Delta\theta_{kp}$
Related
$\Delta \theta_{kp}$
Used in
$\Delta \theta_{t}$
$\theta_{c}$
$\theta_{e}$
$\theta_{hs}$