Experimental Study on the Transient Electric Shock Characteristics Between Metal Sheds and the Human Body Near Ultrahigh Voltage Alternating Current Transmission Lines

With the development of ultrahigh voltage (UHV) transmission lines in China, line corridors are becoming increasingly limited, and the lines pass closer to inhabited areas and the occurrence probability of induced electric shocks are increased. The research on transient electric shock and human sens...

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Bibliographic Details
Published inIEEE transactions on electromagnetic compatibility Vol. 65; no. 3; pp. 679 - 688
Main Authors He, Wangling, Zhang, Yinlu, Liu, Yunpeng, Chen, Qiyu, Han, Xiao, Zhou, Dasen, Wei, Hongyu, Wan, Baoquan
Format Journal Article
LanguageEnglish
Published New York IEEE 01.06.2023
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Alternating current
Conductors
Discharges (electric)
Electric contacts
Electric shock
Electromagnetic environment
electrostatic discharge
Human body
induce electric shock
Induced voltage
Metals
Power lines
Power transmission lines
Pulse duration
Transient analysis
Transient current
ultrahigh voltage (UHV) transmission line
Voltage
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Summary:With the development of ultrahigh voltage (UHV) transmission lines in China, line corridors are becoming increasingly limited, and the lines pass closer to inhabited areas and the occurrence probability of induced electric shocks are increased. The research on transient electric shock and human sensory is essential due to the displeasure and complaints of people on electric shock. In this article, a real-size metal shed was established near a 1000-kV UHV alternating current (ac) transmission line, and the induced voltage and transient current characteristics were studied when the human body was in contact with the shed. Then, the amplitude and pulsewidth of the transient electric shock current were investigated, and the associations between discharge energy and sensation were established. The research found that transient electric shock is the most serious when the grounded human body contacts the insulated shed, and the imparted electric shock energy reaches 25 mJ. When the body and the shed are grounded, there is no electric shock sensation. When the insulated human body is in contact with the insulated shed, the electric shock sensation is intermediate, and women's perceptions of pain are more intense. The results provide references to transient electric shock protection for power transmission lines.
ISSN:0018-9375
1558-187X
DOI:10.1109/TEMC.2023.3243181