Investigations of induced currents in human bodies due to exposure to EMF from low voltage appliances

Extremely Low Frequency Electromagnetic Fields (ELF) due to low and medium voltages are normally low. But with the wide spread and increase in the use of electrical energy, the potential for exposure has increased considerably. Exposure to man made electrical appliances generally ranges from 15 V/m up to 100 V/m for electric fields and from 0.1 ¿T to more than 30 ¿T for magnetic field. Our main topic in this research is to investigate the effect of electric field and magnetic fields at power frequency and analysis of the interaction between these fields and the living organisms. Since the wavelength of the ELF electric and magnetic field is sufficiently greater than greater than the dimensions of the biological object, so the electric and magnetic fields can be independently treated. This paper fa concerned with the calculation methods of electric fields, magnetic fields and currents induced in the human body due to these fields, The developed technique can decide the most accurate method for calculations and the degree of precision .This research investigated the degree of danger due to the induced currents from both magnetic and electric fields individually on his own. It was concluded that the induced currents due to the electric fields are normally insignificant to be considered in calculations and the main concern will be induced currents due to the magnetic fields. In the range of 10 -100 mA/m induced currents biological effects have been established, but these induced current densities from short-term exposure (few hours) may cause minor transient effects on health.