玻璃钢电缆桥架安装要求
1.玻璃钢电缆桥架作为电缆布线工程的一个配套项目,安装 个要求就是确定方向:根据建筑平面布置图,结合管线设置情况,方便维修,以及电缆路由的疏密来确定电缆桥架的更佳 路线。在室内,尽可能沿建筑物的墙、柱、梁及楼板架设。
1. As a supporting project of cable routing engineering, the installation of FRP cable tray requires to determine the direction: determine the better route of cable tray according to the building layout plan, combined with the pipeline setting, convenient maintenance, and cable route density. Indoor, as far as possible along the building walls, columns, beams and floor erection.
2.荷载计算:计算电缆桥架主干线纵断面上单位长度的电缆和总量。
2. Load calculation: calculate the cable and total quantity per unit length on the vertical section of cable bridge trunk line.
3.确定桥架的宽度:根据布置的电缆条数、直径及电缆间距确定桥架的型号、口径、规格,托臂长度、支柱长度、间距,桥架的宽度和层数。
3. Determine the width of the bridge: determine the model, diameter, specification, arm length, pillar length, spacing, width and number of layers of the bridge according to the number, diameter and spacing of cables arranged.
4.确定安装方式:根据场所条件确定玻璃钢电缆桥架的固定方式,选择悬吊式、直立式、侧壁式或混合式,连接件和紧固件一般是配套供应,另外,根据桥架的结构应该选择相应的盖板。
4. Determine the installation mode: according to the site conditions, determine the fixation mode of the fiberglass cable tray, and select the suspension type, vertical type, side wall type or hybrid type. Generally, the connectors and fasteners are supplied together. In addition, the corresponding cover plate shall be selected according to the structure of the tray.
5.如与电力电缆桥架合用时,应将电力电缆和弱电电缆各直一侧,中间采用隔板分隔。
5. If it is used together with the power cable bridge, the power cable and the weak current cable shall be separated on each straight side by a partition.
6.弱电电缆与其它低电压电缆合用桥架时,应严格执行选择具有外屏蔽层的弱电系统的弱电电缆,避免相互间的干扰
6. When the weak current cable and other low-voltage cables share the bridge, the weak current cable of the weak current system with external shielding layer shall be strictly selected to avoid mutual interference