Organ Dosimetry for a Worker Standing Under a 132 kV Power Line

摘要: This paper investigates the induced electric fields and currents in a human body tissues organs of live-line worker standing right under maximum sag-point (mid span) double circuit 132 kV transmission line located Riyadh, Saudi Arabia. The main purpose this study is to determine, if current densities inside critical such as brain heart are within exposure limits IEEE Standards C95.6 - 2002. 132-kV, 60 Hz has power rating 293 MVA, recorded peak load 603 A. Charge simulation method Biot-Savart law have been adopted for computation external magnetic fields. Finite Difference Time (FTDT) technique anatomical model with more than 40 different 3 mm voxel sizes utilized calculate internal field circulating currents. Simulation indicates that, at 1.75 meter above ground level line, computed 1689 V/m 92 mG. These values below set by workers. 29.5 6.3 mV/m respectively. Standard recommended 53 943 heart. all tissues, excluding skin, was bone marrow feet 1.86 V/m. value lower limit 2.1 extremities. Consequently, sagpoint during loading condition safe from short term effects EMF on tissues.