Numerical analysis of biological effects on several organs inside human body exposed to electric field from 500 kV OHTLs

摘要

There is concern about the human health from electromagnetic field which is emitted from the high voltage overheadtransmission lines (OHTLs). The biological effects inside human body depend on electric field intensity and current densityflowing through the organs when they exposed to electric field due to OHTLs. There are harmful effects to these organs if currentdensity exceed safety limit. In this work, the mathematical models of electric field distribution which is emitted from 500 kVOHTLs, induced electric field and current density distributions inside human body which is standing under OHTLs aresystematically calculated using Finite Element Method. These quantities will be compared to the guidelines for safety limit whichset by The International Commission on Non-Ionizing Radiation, ICNIRP. It is found that the incident electric field intensity onhuman body model under OHTLs at mid-span exceeded the safety limit. But the induced current density is much lower than thatof the safety limit.