中继式信号装置线路简单、使用方便,在井筒提升中广泛应用。安装时主线路只需要三根线,所使用的橡套四芯电缆大多合并为三芯,或在四芯中剪断一芯,并以颜色区分电源线和中间过渡线。井口及各个工作水平都有声光信号的发送器、接受器、接线盒等器件。在连接众多的端线时,以颜色区分来确定端线的接头,操作人员中对端线颜色的辨认错误及记忆上的差误往往难以避免。为此,必须研究安装技巧。 Trunk-type signal line is simple, easy to use, widely used in the shaft to enhance. Installation of the main line only three lines, most of the rubber four-core cable used to consolidate the three-core, or in the four-core cut a core, and color to distinguish between the power line and the intermediate transition line. Wellhead and all levels of work have sound and light signal transmitter, receiver, junction boxes and other devices. When a large number of terminals are connected, it is often difficult to avoid the color mismatch between the terminals for identifying the color of the terminals and for recognizing the color of the terminals in the operator. To do this, you must study installation techniques.