论文部分内容阅读
一向被誉为国民经济三大支柱之一的建筑业在我国国民经济发展中的突出作用越来越明显。随着一幢幢高楼大厦的建成,尤其被冠以3A、5A的智能建筑的兴起,对建筑电气专业从产品设备、施工安装到规划设计,都提出了更新更高的要求。现代大型建筑对电力配备、环境照明、自动控制、信息通信等的使用要求急剧增加。为满足建筑物功能日益增长的需求,各种导线、电缆、光缆等传输载体的数量必须相应增加,尤其是竖向干线的增加,更为明显。 目前,竖井中缆线敷设方法是采用传统的线卡明设、穿保护管敷设或沿电缆桥架(线槽)敷设。这些缆线竖向敷设方式,不同程度地存在着下面一些问题:
The prominent role that has always been hailed as one of the three pillars of the national economy in the development of China’s national economy has become increasingly evident. With the construction of a high-rise building, especially the rise of intelligent buildings with 3A and 5A, the requirements for newer and higher requirements for building electrical engineering from product equipment, construction and installation to planning and design have been raised. The requirements for the use of power equipment, environmental lighting, automatic control, and information communication in modern large-scale buildings have increased dramatically. In order to meet the increasing demand for building functions, the number of transmission carriers for various wires, cables, optical cables, etc. must be increased accordingly, especially with the increase of vertical trunk lines. At present, the cable laying method in the shaft is laid by using a conventional line card, laying through a protective pipe or laying along a cable bridge (trunk). The vertical laying of these cables, to varying degrees, has the following problems: