特高压交流输电线路附近空间电场较高,对线下物体容易造成感应电及暂态电击现象。其中,当人撑伞经过线路下方区域时产生的暂态电击现象最为常见,也引起了居民的多次投诉。为研究金属伞对人体的暂态电击现象,本研究建立了1 000 kV特高压交流输电线路下方金属伞的暂态电击模型,并采用有限元仿真计算和实地试验相结合的方式对暂态电击电流和电击能量进行计算分析。结果表明:1 000 kV交流输电线路下方金属伞对人体的暂态电击电流峰值最大可达0.795 A,暂态电击能量最大可达0.427 mJ,超过了人体可感知的电流限值0.
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