Electric field characteristics of X-ray detection and safety protection in live work of transmission lines

• Published in: IOP conference series. Earth and environmental science Vol. 546; no. 2; pp. 22052 - 22060
• Main Authors: Xianhui, Cao, Kejian, Ouyang, Weike, Liu, Yi, Xie, Miao, Yang, Chao, Feng, Yi, Fu, Long, Zhan
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.07.2020
• Subjects: Alternating current; Digital imaging; Electric fields; Electric potential; Finite element method; Mathematical models; Occupational safety; Shielding; Simulation; Transmission lines; Unmanned aerial vehicles; Voltage; X ray imagery
• ISSN: 1755-1307; 1755-1315
• DOI: 10.1088/1755-1315/546/2/022052

Hidden defects in transmission lines can be detected by X-ray. Through the simulation of different voltage/current tests in the laboratory, the live detection test of digital X-ray detection equipment was carried out and the detection tests under the live condition of 110kV transmission line carried by unmanned aerial vehicle, the maximum tolerable voltage of X-ray digital imaging equipment during live operation was determined. By using the electric field finite element simulation, the affected field intensity detected by the equipment is 360kV/m, and the spatial field intensity distribution of ac transmission lines with different voltage levels is given, which provides a reference for selecting reasonable electric field shielding measures for the live operation of X-ray digital imaging equipment.