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电缆桥架的防火是为了防止当火灾发生是在电缆之间蔓延从而导致大面积的火灾出现，火源将电缆引燃并在同一层燃烧，

有效的将火势控制在最小范围内。

Cable tray fire is to prevent the spread of fire occurred when between the cable leading to the emergence of

a large area of the fire, the cable will ignite the fire source and in the same layer burning, effective control of the fire

within the minimum range.

电缆分开敷设，分别将高压电缆层、动力电缆层以及控制电缆层这三个层由上到下的敷设；增加防火墙、防火门。主廊道每

隔100米增加一个防火段，钢制电缆桥架每60米增加一个防火墙。

Cable tray fire design are: the cable through the wall hole sealed with fireproof material blocked; different

types of cables isolated. When laying cables in different categories of cable will be laid separately, the

high voltage cable layer, power cables and control cables layer layer three layers from top to bottom,

respectively, of laying; increase firewalls, fire doors. The main corridor to add a fire every 100 m segment,

steel cable tray to add a firewall every 60 meters.

进行层间防火隔离。通过在钢制电缆桥架层上增加防火材料制作的防火保护罩，并且每三层之间隔一层防火板来达到防止

火灾层间蔓延的效果，并且可以通过这种隔离增强钢制电缆桥架的耐火性。结合起来，防火效果十分好。

Inter-layer fireproof isolation. By increasing the production of fireproof material fireproof protective

cover layer on the steel cable tray, and three of every layer spacing between the fire board to achieve the

prevention of the spread of the fire layer effects, and this isolation can be enhanced by a steel cable tray

fire sex. Combine fire effect is very good.