Human Body Impedance for Contact Current Measurement in Japan

Yoshitsugu KAMIMURA  Katsuo KOMORI  Masahiro SHOJI  Yoshifumi YAMADA  Soichi WATANABE  Yukio YAMANAKA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E88-B   No.8   pp.3263-3268
Publication Date: 2005/08/01
Online ISSN: 
DOI: 10.1093/ietcom/e88-b.8.3263
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section of 2004 International Symposium on Electromagnetic Compatibility)
Category: Biological Effects
Keyword: 
contact current,  equivalent circuit,  impedance method,  

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Summary: 
The radio-frequency protection guideline of Japan recommend the limits of contact current for contact hazard due to an ungrounded metallic object under an electromagnetic field in the frequency range from 10 kHz to 15 MHz. To arrange the standard measurement methods of contact current in Japan, the contact body impedance for the Japanese in the frequency range from 75 kHz to 15 MHz is obtained, and the simplified equivalent circuit is determined using nonlinear least squares method. In addition, the human body impedance is obtained from numerical simulation using the impedance method and voxel human model, and compared it with measured one.