Electromagnetic impact of underground HVDC cables

This paper analyses the magnetic field emissions of a future HVDC transmission line for the interconnection between Italy and France, which will adopt underground cables laid along the Frejus highway. The current harmonics and the consequent magnetic field are estimated by combined use of different numerical models. The electromagnetic interferences with existing structures and the human exposure to magnetic fields have been analyzed and compliance with regulations limiting human exposure and technical standards ensuring electromagnetic compatibility of appliances and devices has been assessed.