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Total losses (phase)

The total losses per cable phase include the dielectric losses in the insulation, the losses in a steel pipe in case of pipe-type cables and the losses in a common (ferro)magnetic steel duct.

Symbol
$W_t$
Unit
W/m
Formulas
$W_I+W_d$
Related
$W_d$
Dielectric losses (phase) [W/m]
$W_I$
Ohmic losses (phase) [W/m]
Used in
$\Delta \theta_s$
Temperature difference surface—ambient [K]
$k_l$
Temperature rise factor in air
$\theta_{de}$
Temperature duct outer surface [°C]
$W_{tot}$
Total losses (object) [W/m]