6Greenberger S, Looijenga K, Heilig T. Stray current exchange between electric rail and underground utilities[C~//CORRO- SION/2007, Paper No. 644. Houston, TX : NACE, 2007.
7Wu Changfang,Liu Lingli,Chen Hongyuan. Study on pipeline in- terference from stray current of DC light railwayEC~//Crorro- sion/2008, Paper No. 062. Houston, TX: NACE, 2008.
8DelasCasas R. Dynamic stray current interference testing and miti- gation design for a 90-inch water main~C~//Corrosion/2009, Pa- per No. 547. Houston, TX : NACE, 2009.
9Chen Shilin,Hsu S C,Tseng C T,et al. Analysis of rail potential and stray current for Taipei metro[J]. IEEE Transactions on Ve- hicular Technology, 2006,55 ( 1 ) : 67-75.
10Chuang J M, Zamani N G, Hsiung C C. Some computational as- pects of BEM simulation of cathodic protection systems[J]. Ap- plied Mathematical Modeling, 1987,11 ( 5 ) : 371-379.