The influence of frequency and soil permeability on the magnetic field due to underground power cables

摘要

There has been a great controversy about the possible connection between magnetic field and human health over the past few years.rnElectric and magnetic fields exist due to the presence of electric devices, in general, and in particular, of any power system, in generation, transmission or distribution lines or cables. In this paper special attention is given to the magnetic field created by underground power cables. Results for different values of frequency and soil magnetic permeability are presented giving importance to both effects acting together. It will be also analysed the influence of the sheath grounding for soils having different values of permeability in magnetic field distribution. The model formulation and assumptions are described in a previous work on where this paper is based on.