1. When installing the cable, first punch the cable through the wall and then seal the hole with fireproof materials.

2、电缆的类型多种多样将不同类型的电缆隔离开来，还有在敷设电缆的时候，把刚才不同种类的电缆分来敷设，由上到下敷设，先将高压电缆的那一层，之后是电力电缆，后就是控制层的电缆。

2. There are various types of cables to isolate different types of cables. When laying cables, lay different types of cables from top to bottom, first the layer of high-voltage cables, then the power cables, and finally the cables of control layer.

3、在主的走廊到和别的走廊之间要增加防火门，在主走廊道每隔100就要增加一个防火段，然后电缆桥架要60米增加一个防火墙，防火墙、防火门它们的材料都是由防火隔墙板和一些无机材料组合而成的。

3. Fire doors shall be added between the main corridor and other corridors. A fire section shall be added every 100 meters in the main corridor, and then a firewall shall be added to the cable bridge for 60 meters. The materials of firewall and fire door are composed of fire partition board and some inorganic materials.

4、现在就是进行防火隔离了，在通过电缆桥架上增加的防火材料然后制作出来的防火保护罩，而且要每三层之间要隔一层防火板才能够防止火灾层蔓延的效果，一定要通过这种隔离增强的青岛电缆桥架的耐候性，由这几种防火组合起来，一定能有很好的防火效果。

4. Now it's time to carry out fire isolation. The fire protection cover made by adding fire-proof materials on the cable tray, and a layer of fire-proof board should be separated between every three layers to prevent the spread of the fire layer. The weather resistance of Qingdao cable tray must be enhanced through this isolation. Combined with these kinds of fire prevention, it must have a good fire-proof effect.