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    • 4. 发明公开
    • A device for detecting a hazardous potential difference between conductor rails of a railway track
    • 用于确定铁路轨道的功率导轨之间的危险电位差检测装置
    • EP1429149A2
    • 2004-06-16
    • EP03257727.2
    • 2003-12-09
    • London Underground Limited
    • Payne, Kevin c/o London Underground Limited
    • G01R19/165
    • G01R19/165B61L23/06
    • A device (10) includes an operator housing (20) and an indicator housing (30). The two housings (20, 30) are connected to one another by a length of electrical cable (40). Each housing (20, 30) includes a respective handle (22, 32) on an upper surface thereof and a respective rail terminal plate (50) mounted in a lower surface thereof. The indicator housing (30) additionally includes a number of LED's mounted in its upper surface. In use, the device (10) is placed against conductor rails of a railway track such that the rail terminal plate (50) of each housing (20, 30) is in contact with a respective one of the conductor rails. The device (10) is arranged such that the presence of a large potential difference across the conductor rails causes the LED's mounted in the indicator housing (30) to flash on and off. The device (10) is additionally provided with a self-test facility, whereby the rail terminal plate (50) can be placed together and a button (24) in the operator housing (20) depressed to establish a test current through the device (10). Correct functioning is then indicated by the LED's flashing on and off.
    • 的装置(10)包括在操作器壳体(20)和指示器壳体(30)。 两个壳体(20,30)由电电缆(40)的长度彼此连接。 每个壳体(20,30)包括关于到其上表面和respectivement轨端子板(50),一个respectivement手柄(22,32)安装在其下表面。 指示器外壳(30)还包括多个安装在其上表面上的LED。 在使用中,所述设备(10)被放置成抵靠铁路轨道搜索的导电轨,DASS死每个壳体(20,30)是在与respectivement导电轨道的一个接触的轨端子板(50)。 所述装置(10)被布置成检查的确跨越导体轨道产生大的电位差的存在导致安装在指示器壳体(30)闪动打开和关闭发光二极管的装置(10),另外设置有一个自测试 设施,由此导轨端子板(50)可以被放置在一起,并在操作员壳体的按钮(24)(20)压下通过装置(10)以建立一个测试电流。 正确功能然后由LED闪烁接通和断开指示的。