Ma. Hanna et al., THERMAL-ANALYSIS OF POWER CABLE SYSTEMS IN A TRENCH IN MULTILAYERED SOIL, IEEE transactions on power delivery, 13(2), 1998, pp. 304-309
A system of three underground cables in a trench is modelled using fin
ite difference method, The model accommodates most of the geometrical
parameters and the working conditions. The heat dissipation from each
individual cable is calculated for various parameters including the ca
bles diameters, the trench width and the spacing between cables. Some
of the geometrical dimension have great influence on improving the tot
al ampacity of the system.