杂散电流对变电站接地网材料耐蚀性的影响
Effect of Stray Current on Corrosion Resistance of Grounding Grid Materials at Substation
摘 要
采用直流电流和交流电流模拟变电站杂散电流的方法,试验探讨了交、直流杂散电流对接地网材料耐蚀性的影响.结果表明,直流杂散电流对材料耐蚀性的影响远远大于交流电流,且直流杂散电流的影响与土壤电导率基本成正比,与土壤pH值相关性不明显.交流杂散电流的影响与土壤电导率和pH值均无明显的相关性.
地网材料
耐蚀性
影响
stray current
grounding grid material
corrosion resistance
effect
Abstract
The effect of AC/DC stray current on corrosion resistance of grounding grid materials was studied by applying AC/DC to simulating the stray current at substation.The results showed that the effect of DC stray current on corrosion resistance was much greater than the effect of AC stray current.Effect of DC stray current was essentially proportional to soil conductivity and had unobvious correlation with pH of soil;Effect of AC stray current had unobvious correlation with pH and conductivity of soil.
中图分类号 TG172 TM244
所属栏目 试验研究
基金项目
收稿日期 2009/6/8
修改稿日期 2009/9/16
网络出版日期
作者单位点击查看
备注郑敏聪,高级工程师.
引用该论文: ZHENG Min-cong. Effect of Stray Current on Corrosion Resistance of Grounding Grid Materials at Substation[J]. Corrosion & Protection, 2010, 31(4): 294～296
被引情况:
【1】杨燕,李自力,文闯, "杂散电流对X70钢干扰影响的腐蚀试验",腐蚀与防护 34, 391-394(2013)
【2】李建华,郑敏聪,聂新辉, "变电站内杂散电流对接地网腐蚀的影响",腐蚀与防护 33, 804-806(2012)
【3】郑敏聪,李建华,聂新辉, "铜质接地网材料腐蚀特性",腐蚀与防护 34, 507-510(2013)
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