| 30 mA泄漏电流对输电线路大气腐蚀行为的影响 |
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| 引用本文： | 骆国铭,毛晓坡,张予,陆锦培,周俊宇,曹祥薇,宗云. 30 mA泄漏电流对输电线路大气腐蚀行为的影响[J]. 中国电力, 2017, 50(12): 125-129. DOI: 10.11930/j.issn.1004-9649.201608023 |
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| 作者姓名： | 骆国铭 毛晓坡 张予 陆锦培 周俊宇 曹祥薇 宗云 |
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| 作者单位： | 1. 广东电网有限责任公司 佛山供电局,广东 佛山 528000; 2. 国网湖北省电力公司电力科学研究院,湖北 武汉 430077; 3. 武汉黄鹤楼新材料科技开发有限公司,湖北 武汉 430040; 4. 石家庄信息工程职业学院 通信工程系,河北 石家庄 050035 |
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| 基金项目： | 国家电网公司科技项目（EPRIGYKJ[2012]8843） |
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| 摘 要： | 为了研究输电线路在30 mA泄露电流作用下,金属材料受到大气腐蚀行为的影响,通过把金属材料放置于3种腐蚀环境中,分析不同SO2浓度和泄露电流状态下,金属材料的腐蚀失重情况,当SO2含量比较小时,泄露电流对样品的腐蚀失重影响不大;而当SO2含量比较大时,泄露电流首先加速金属材料的腐蚀,样品表面会有较多的γ-FeOOH亚稳态晶态相产生,当腐蚀产物积累到一定程度后,受到腐蚀的样品中部分γ-FeOOH转变成相对稳定的α-FeOOH与Fe3O4,腐蚀产物便会降低腐蚀现象的发生,反而使样品的耐蚀性得到改善。
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| 关 键 词： | 输电线路 泄露电流 大气腐蚀 金属材料 SO2含量 |
| 收稿时间： | 2016-08-11 |
Research on the Impact of 30 mA Leakage Current on the Atmospheric Corrosion of Transmission Lines |
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| LUO Guoming,MAO Xiaopo,ZHANG Yu,LU Jinpei,ZHOU Junyu,CAO Xiangwei,ZONG Yun. Research on the Impact of 30 mA Leakage Current on the Atmospheric Corrosion of Transmission Lines[J]. Electric Power, 2017, 50(12): 125-129. DOI: 10.11930/j.issn.1004-9649.201608023 |
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| Authors: | LUO Guoming MAO Xiaopo ZHANG Yu LU Jinpei ZHOU Junyu CAO Xiangwei ZONG Yun |
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| Affiliation: | 1. Foshan Power Supply Bureau Guangdong Grid Corporation Limited, Foshan 528000, China; 2. Electric Power Research Institute, State Grid Hubei Electric Power Corporation, Wuhan 430077, China; 3. Wuhan Huanghelou New Materials Science Technology Develop., Ltd, Wuhan 430040, China; 4. Communication Engineering Department, Shijiazhuang Information Engineering Vocational College Shijiazhuang Hebei 050035, China |
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| Abstract: | In order to study the corrosion behavior of transmission line under 30 mA leakage current, in this paper, the corrosion weightlessness of metallic materials under different SO2 concentrations and different leakage currents is analyzed. When SO2 concentration is relatively low, the effect of leakage current on corrosive weightlessness is not obvious; when SO2 concentration is relatively high, leakage current will expedite the corrosion of metallic material and more metastable γ-FeOOH will accumulate on the surface. When γ-FeOOH accumulates to a certain extent, parts of it will convert to relatively stable α-FeOOH and Fe3O4 and the corrosion is mitigated by the stable products, which improves the corrosion resistance of samples. |
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| Keywords: | transmission line leakage current atmospheric corrosion metallic materials SO2 content |
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