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  • 电缆的敷设方式有哪些
  • 本站编辑:杭州昌平泰机电工程有限公司发布日期:2018-06-12 10:10 浏览次数:
 电缆的敷设方式有以下几种:直埋敷设、穿管敷设、浅槽敷设、电缆沟敷设、电缆隧道敷设、架空敷设几种方式都有优缺点,一般要考虑城市发展规划,现有建筑 物的密度电缆线路长度敷设条数及其周围环境的影响等。从技术上比较,电缆隧道方式和电缆沟敷设方式便于电缆的施工、维护和检修。在一些发达国家城市中,城 市规划建设时,已考虑公用隧道。实践证明公用隧道运行效果良好,大大降低了重复投资次数和反复开挖路面的现象,但初期投资巨大,建筑材料耗资金,在国内, 由于各种因素的限制,这种敷设方式是极少的。相比而言,直埋敷设和浅槽敷设则是属于经济型的敷设方式,直埋电缆是比较经济而广泛系用电敷设方式,它运用于郊 区和车辆通行不太频繁的地方。但不利于电缆的维护和检修,一旦遇到电缆故障,即使使用测试仪测出故障点,也要重新挖开电缆沟,极不方便。因此电缆敷设方式 的选择,要结合实际情况,根据工程条件、环境特点、电缆型号和数量等因素,用发展的眼光,按照满足运行可靠性、便于维护的要求和技术经济合理的原则确定。

There are several kinds of cable laying methods: direct burial laying, pipe laying, shallow groove laying, cable trench laying, cable tunnel laying and overhead laying have advantages and disadvantages in several ways. In general, the urban development planning, the number of length laying bars of the density cable line and the influence of the surrounding environment of the existing buildings should be considered. Technically speaking, cable tunnel mode and cable trench laying mode are convenient for cable construction, maintenance and overhaul. In some developed cities, public tunnels have been considered in urban planning and construction. The practice has proved that the running effect of the public tunnel is good, which greatly reduces the number of repeated investment and the phenomenon of repeated excavation of the road. However, the initial investment is huge and the construction materials consume funds. In China, because of the restrictions of various factors, this kind of laying method is very few. In comparison, direct burial laying and shallow groove laying are economic laying methods. The direct buried cable is the most economical and widely used electric laying method, which is used in the suburban and vehicles where the traffic is not too frequent. However, it is not conducive to the maintenance and overhaul of cables. Once the cable fault occurs, even if the fault points are detected by using the tester, it is extremely inconvenient to reopen the cable trench. Therefore, the selection of cable laying methods should be determined according to the actual conditions, according to the engineering conditions, environmental characteristics, cable model and quantity and other factors, with the development vision, according to the requirements of meeting the reliability of operation, the requirements for easy maintenance and the reasonable technical and economic principle.