局部绝缘损坏对地铁杂散电流的影响  

Stray Current in Subways Affected by Local Track to Earth Insulation Defect

作　　者：胡先茂[1] 李国欣[2] 王崇林[2] 邓薇[2] 曹薇薇[2] 朱志星[2] 

机构地区：[1]中铁第四勘察设计院集团有限公司,武汉430063 [2]中国矿业大学,江苏徐州221008

出　　处：《都市快轨交通》2009年第3期76-78,共3页Urban Rapid Rail Transit

基　　金：国家自然科学基金(50504015)

摘　　要：在行业标准CJJ49—92《地铁杂散电流腐蚀防护技术规程》中,地铁杂散电流的计算公式是在钢轨对地绝缘介质均匀条件下得出的,并且没有考虑结构钢和排流网等实际情况。对这些情况下的杂散电流分布进行分析,并考虑钢轨绝缘扣件的局部绝缘损坏情况。In the professional standard CJJ 49--92 Code for Anti-corrosion of Stray Currents in Subways, the formula for stray current calculation was deducted under the condition of uniform medium of rail to earth insulation, without considering structure steel and current drainage net. The article analyzed the distribution of stray current under these conditions, taking into account the local insulation defect of rail fastenings.

关 键 词：地铁 杂散电流 轨道绝缘 绝缘损坏 

分 类 号：U231.8[交通运输工程—道路与铁道工程] TM63[电气工程—电力系统及自动化]