The invention relates to the technical field of contact network disconnecting switches, in particular to a lead length pre-configuration method for a disconnecting switch connected with a contact network. A vertical distance LAO and a horizontal distance LOE between a connection fixing point A of a lead wire at a wire clamp of the disconnecting switch equipment and a carrier cable, a distance LZC between a connection fixing point C of the lead wire at the carrier cable and a central anchor knot under an ideal working condition, and a linear distance LEC between the point C and a projection point E of the point A on the carrier cable are determined through field measurement or according to a design drawing; the linear distance HAD between the point A and the point D is calculated, the expansion amount deltaL lead of the lead under the temperature change condition and the length L binding fixing needed by lead installation, fixing and binding are considered, and the pre-configured length LAD of the lead is determined; through digital calculation, the influence of environmental factors on the lead sag and the binding length when the lead is used are comprehensively considered, a rapid, accurate and high-quality factory-like pre-configuration value is provided for pre-configuration of the disconnecting switch lead, so that the pre-configuration length of the disconnecting switch lead is accurate and high in quality, and normal operation in different extreme environments can be met.

    本发明涉及接触网隔离开关技术领域,特别涉及一种与接触网相连的隔离开关引线长度预配方法,通过现场测量或根据设计图纸确定引线在隔离开关设备线夹处的连接固定点A与承力索间的垂直距离LAO、水平距离LOE、理想工况下引线在承力索的连接固定点C距离中心锚结的距离LZC、C点和A点在承力索上的投影点E之间的直线距离LEC,计算A点与D点间的直线距离HAD,考虑引线在温度变化情况下的伸缩量ΔL引线和引线安装、固定、绑扎所需长度L绑扎固定,确定引线的预配长度LAD;通过数字化的计算,综合考虑环境因素对引线弛度的影响和引线使用时的绑扎长度,为隔离开关引线的预配提供了快速、精准、高质量的工厂化预配值,使隔离开关引线的预制长度精确、高质量,能够满足在不同极端环境下的正常运行。


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    Title :

    Lead length pre-configuration method for disconnecting switch connected with contact network


    Additional title:

    一种与接触网相连的隔离开关引线长度预配方法


    Contributors:
    YANG JIA (author) / CHEN KE (author) / LU XIAOBING (author) / LIU ZHIGANG (author) / HUANG XIN (author) / DUAN FUCHUAN (author) / XU ZHAO (author) / ZHU YOUQIANG (author) / ZHANG JIAYI (author) / YANG YANG (author)

    Publication date :

    2021-08-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES



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