Exposure level control of power frequency electric field near angle tower of 500kV transmission lines. Issue 6 (February 2019)

• Record Type: Journal Article
• Authors: Huang, Mingxiang; Bian, Hongzhi; Lin, Yifu; Wang, Yifei; Yang, Dongyang
• Is Part Of: IOP conference series. Volume 237:Issue 6(2019)
• Publication Date: 2019-02
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/237/6/062047
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: The distortion of power frequency electric field in the roof space near the angle tower of EHV line is serious, which is an important factor to be considered in transmission line planning and design. This paper establishes a three-dimensional electric field simulation model near the angle tower of 500 kV transmission line and verifies the validity of the simulation by field measurement. Based on this, the factors affecting the spatial electric field level on the roof of the house near the angle tower are analysed. Finally the control distance of the house near the angle tower is calculated according to the electric field exposure limitation in Chinese standards. The results show that the electric field near the transmission line is distorted and elevated by the house, and the electric field level of the roof decreases with the increase of the distance between the house and the line, and decreases with the decrease of the height of the house and the angle of the line.