3. Numerical example
3.1 Data
Consider an MV line with the following characteristics:
-
117 mm 2 Almelec conductors (ASTER 117) :
cross-sectional area S = 116.98 mm 2 .
radius r = 7 mm
nominal electrical resistance at 20 °C = 0.283 Ω/ km
distance between conductors: 1 m
height of conductors above ground: 10 m
soil resistivity: 100 Ω · m (these last two values are only used to calculate the homopolar mode).
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Numerical example
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