沈阳地铁站台门系统绝缘问题及改造方案研究
曲博1吴李刚2张哲晨2
Study on the Insulation Problem of Shenyang Metro Station Platform System and Improvement Scheme
QU BoWU LigangZHANG Zhechen
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作者信息:1.沈阳地铁集团有限公司，110142，沈阳;
2.沈阳地铁集团有限公司运营分公司,110161,沈阳
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Affiliation:Shenyang Metro Group Co., Ltd., 110142, Shenyang, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2019.01.028
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中图分类号/CLCN:U223.6+1：U231.4
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栏目/Col:应用技术
摘要:
地铁运营过程中，站台门绝缘阻值会下降，从而使杂散电流增大，导致乘客触电风险增大。对沈阳地铁1、2号线部分站台门检测发现，当站台门门体与轨道等电位线断开时，站台门门体与列车门体的最大电位差为42 V，当站台门门体与轨道等电位线连接时，流经站台门门体的最大电流达43 A。模拟人体电阻试验表明，沈阳地铁站台门杂散电流较大，应采取处理措施。经比较分析，采用站台门直接接地，并对乘客可触及部分的门体进行绝缘处理的方案为最优方案。
Abstracts:
The insulation resistance of PSD will decrease in metro operation, causing stray current and electric shock risks for passengers. Through checking some of the platform doors on metro Line 2, it is found that the maximum potential difference between platform door and train door is 42V when the potential line is disconnected between PSD and track; in contrary situation, the maximum current that flows through platform doors is 43 A. A simulated human body resistance test shows that the stray current of PSD at Shenyang metro stations is larger and must be processed. Through comparative analysis, the best improvement scheme is selected, which adopts the platform door grounding and insulates the touchable parts of PSD for passengers.
引文 / Ref:
曲博，吴李刚，张哲晨.沈阳地铁站台门系统绝缘问题及改造方案研究[J].城市轨道交通研究，2019，22（1）：126.
QU Bo，WU Ligang，ZHANG Zhechen.Study on the Insulation Problem of Shenyang Metro Station Platform System and Improvement Scheme[J].Urban mass transit，2019，22（1）：126.
QU Bo，WU Ligang，ZHANG Zhechen.Study on the Insulation Problem of Shenyang Metro Station Platform System and Improvement Scheme[J].Urban mass transit，2019，22（1）：126.
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