SONGKLANAKARIN JOURNAL OF SCIENCE & TECHNOLOGY

Volume 41, No. 03, Month MAY, Year 2019, Pages 649 - 657

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

Apichart Siriwitpreecha and Phadungsak Rattanadecho

Abstract Download PDF

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

Keywords

current density, organs, human body, electric field, transmission lines

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