防止杂散电流的腐蚀在国外已做了大量的研究。但国内对这方面的研究还很不够,本文首先简要介绍了杂散电流常用的防护技术。杂散电流对供电系统周边的环境和基础设施的危害很大。对杂散电流的防护应采用“以防为主,以排为辅,防排结合,加强监测”的原则。 To prevent the corrosion of stray current in foreign countries have done a lot of research. However, the domestic research in this area is still not enough, this paper briefly introduces the commonly used stray current protection technology. Stray currents are very harmful to the environment and infrastructure around the power supply system. The stray current protection should be used “to prevent the main row to supplement, anti-row combination to strengthen monitoring ” principle.