In the article, the problem of lightning protection of non-insulated track circuit of crossing signal and insulation protection of signal acoustics loop is raised with analysis of the reasons concerned and the proposed solution. 提出了道口信号无绝缘轨道电路的防雷及道口信号音响回路的绝缘防护问题,分析了原因,找出了解决问题的办法。
The paper gives an introduction to the test procedure and method for construction debugging of ZPW-2000A non-insulated frequency-shift automatic blocking equipment. 本文介绍了ZPW-2000A无绝缘移频自动闭塞工程调试中实验程序及实验方法。