Journal of Radiation Research and Radiation Proces ›› 2017, Vol. 35 ›› Issue (6): 60601-060601.doi: 10.11889/j.1000-3436.2017.rrj.35.060601

• RADIATION PROTECTION • Previous Articles     Next Articles

Comparative study on safety assessment of electromagnetic exposure of typical ultra high voltage AC transmission lines

YE Yanfeng1, LU Mai2, CHEN Xiaoqiang1   

  1. 1 College of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China;
    2 Key Laboratory of Opto-Electronic Technology and Intelligent Control, Lanzhou Jiaotong University, Ministry of Education, Lanzhou 730070, China
  • Received:2017-06-14 Revised:2017-08-26 Online:2017-12-20 Published:2017-12-20
  • Supported by:

    Supported by the National Natural Science Foundation of China (51567015)

Abstract:

The finite element software COMSOL was used to simulate the magnetic field effect of the body model under the typical cup type tower and cat-head type tower with 1 000 kV ultra high voltage (UHV) AC transmission lines. Magnetic induction intensity, induced electric field intensity, and the induced current density in body tissues for different towers were calculated, and the results were compared with the guidelines specified by the International Commission on Non-Ionizing Radiation Protection (ICNIRP). The results indicated that the magnetic field in the human body model and its surroundings distributed uniformly, and the distribution of the magnetic induction intensity in the transversal distribution was a circular arc. The cup type tower and the cat-head type tower had the similar distribution in magnetic induction intensity, induced electric field intensity and induced current density in the human body. Maximum values of all induced data under the cup type tower were about 56.3%, 54.6%, and 55.2% of the cat-head type tower. Compared with the ICNIRP guidelines, all the results were at a lower level. The electromagnetic exposure generated by the cup type tower and the cat-head type tower will not pose a threat to the health of human body. From the perspective of electromagnetic exposure dosimetry, the cup type tower is better than the cat-head type tower.

Key words: Ultra high voltage AC, Magnetic field effect, Magnetic induction intensity, Induced electric field intensity, Induced current density

CLC Number: 

  • TL72