荣立志

摘要；随着电气化铁路迈入“高速时代”之后，列车的“运行安全”也受到了前所未有的重视。相对于普速铁路来说，高速电气化铁路对接触网设备的安装工艺和调整精度都提出了更加苛刻的要求——如腕臂的工厂化预配、吊弦的不可调整性等。随着高速电气化铁路施工技术的不断革新与发展：无论是腕臂的安装工艺，还是吊弦的调整精度等都被电化人给克服了，各类计算软件的相继开发完成，就是一个很好的例子；但事实上却出人意外，在高速铁路投入运营之后，接触网设备出现问题较多的往往不是腕臂、吊弦这些支撑件，而是因各类辅助连接件造成的电气烧伤问题，这到底是怎么一回事呢？“小小的连接件”为何会造成那么多的“不安全”因素呢？

关键字运行安全；高速电气化铁路；电气烧伤；“不安全”因素

Abstract:With the electrification of the railway entered the " fast times ", the " running safety of train " was also a hitherto unknown attention. Relative to general speed railway, high-speed electrified railway contact network equipment installation and adjustment technology of precision raise more slashing requirement -- such as the wrist and arm factory provisioning, the hanger can not be adjusted. Along with the high speed electrified railway construction technology innovation and development: either wrist and arm of the installation process, or a hanger adjustment precision were electrified to overcome, all kinds of calculation software development have been completed, is a very good example; but in fact it is beyond expectation, in high speed railway after the operation, the contact network of equipment problems more often than not arm, hanging the support, but because of various kinds of auxiliary connections caused by electrical burn, how is this a matter? " Little connecting piece " why would cause so much " unsafe " factors?

Keywords:Safety operation; high-speed railway; electric burn; " unsafe " factorsSafety operation; high-speed railway;

中图分类号： 文献标识码：A 文章编号：2095-2104（2012）

1 引言

在如今：铁路建设规模日趋放缓的情况下，运行安全越来越被重视的压力下，铁路工程单位在施工过程中，在保证机械可靠性的前提下，如何保证接触网对电力机车的供电可靠性，如何优化和减少电气烧伤事故发生的概率，已成为供电段乃至铁路局评价施工单位优劣的一个标志性因素。本文先对电气烧伤产生的原因进行分析，再从宁杭客专如何在电气连接方面的优化进行举例论证，以理论和实践相联系。

2 电气烧伤事故产生的机理

电气连接件作为接触网设备的辅助设备，看似简单，却对列车运行安全起着举足轻重的作用。……