著者

浜元 勲 林 則行 太良尾 浩生

出版者

宮崎大学工学部

雑誌

宮崎大學工學部紀要 = Memoirs of Faculty of Engineering, University of Miyazaki (ISSN:05404924)

巻号頁・発行日

vol.41, pp.41-47, 2012-07-30

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Researches on contact current and human body resistance by using precise human model at power frequency were carried out. In this study, the absolute values of internal body resistances were calculated for the two current paths. Its showed good agreement with another numerical data. But, they were twice or three times higher than the experimental ones. This implies that the factors such as the difference between in vivo and in vitro conductivities need to be considered. In addition, it was found that the internal resistances are widely influenced by current path which include extremities or not. And then, the current density of extremely high magnitude exceeding 100mA/m2 appears concentrically at heart and spinal cord in the torso as well as at extremities. These results indicate that concentration of internal current is influenced by cross-section area of current path and tissue's conductivity.