Numerical determination of electric field induced currents on human body standing under a high voltage transmission line

In this paper, biological effects of high voltage transmission line electric field on biological systems especially on a grounded human body standing under a high voltage transmission line have been studied. The electric field distribution on a human body standing underneath extra high voltage overhead transmission lines has been calculated by using Boundary element method (BEM). Induced currents and current densities on the human body have been obtained using computed locally enhanced electric field values. The induced currents and current densities in grounded and insulated human bodies are determined at the top of the head, at the middle of the neck, at the middle of the waist and at the middle of the legs. These currents are correlated with the safe limits. The electric field distributions within the human body are studied as a function of height of conductors of 3-ph 380 kV line over the ground plane, diameter of line conductor, horizontal distance between phase line, dimension of different part of the body, and frequency of applied voltage.