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电缆桥架安装布线的注意事项

电缆桥架不宜安装在腐蚀性气体管道和热力管道的上方及腐蚀性液体管道的下方,否则应采取防腐、隔热措施。所以平常安装每一步都要按照正确的安装方法。
The cable tray should not be installed above the corrosive gas pipeline and heat pipe and below the corrosive liquid pipeline, otherwise, anti-corrosion and heat insulation measures should be taken. Therefore, the correct installation method should be followed in every step of installation.
电缆桥架中布线需注意:
Attention should be paid to the wiring in cable tray:
1.室内采用电缆桥架布线时,电缆不应有黄麻或其他易延燃材料外护层。
1. When cable tray is used for indoor wiring, the cable shall not be provided with jute or other flame retardant materials.
2.在潮湿的场所或防腐蚀地方采用电缆桥架布线时,应根据不同采取相应的防护措施,并宜选用塑料护套电缆。
2. When cable tray is used for wiring in wet places or anti-corrosion places, corresponding protective measures should be taken according to different conditions, and plastic sheathed cables should be selected.
3.电缆桥架安装时的距地高度一般不宜低于2.50m,垂直安装时距地1.80m以下部分应加金属盖板保护,但敷设在电气专用房间(如配电室,电气竖井、技术层等)内时除外。
3. The height of cable tray from the ground should not be less than 2.50M during installation. When installing vertically, the part below 1.80m above the ground should be protected by metal cover plate, except when it is laid in special electrical room (such as distribution room, electrical shaft, technical layer, etc.).
4.电缆桥架水平安装时,宜按荷载曲线选取跨距进行支撑,跨距一般为1.5~3m。垂直敷设时,其固定点间距不宜大于2m。

4. When the cable tray is installed horizontally, the best span should be selected according to the load curve, and the span is generally 1.5-3m. When laying vertically, the spacing between fixed points should not be greater than 2m.
5.几组电缆桥架在同一高度平行安装时,各相邻电缆桥架间应考虑维护、检修距离。
5. When several groups of cable trays are installed in parallel at the same height, the maintenance and overhaul distance between adjacent cable trays shall be considered.
6.在电缆桥架上可以无间距敷设电缆,电缆在桥架内横断面的填充率:电力电缆不应大于40%;控制电缆不应大于50%。
6. The cable can be laid on the cable tray without interval. The filling rate of the cable in the cross section of the cable tray: the power cable should not be greater than 40%; the control cable should not be greater than 50%.
7.下列不同电压,不同用途的电缆,不宜敷设在同一层桥架上:
7. The following cables with different voltages and different uses should not be laid on the same layer of bridge:
相关标签:济南电缆桥架
 
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