先给大家科普一下防火电缆桥架是一件什么样的物品，这样能让大家更深刻的理解桥架安装时候需要注意的问题程度。防火电缆桥架采用钢制外壳，双层防火盖板，内装无机防火槽盒。隔热层平均厚度为25mm，双层盖板通风散热，内喷防火涂料，防火电缆桥架遇火时涂料膨胀，阻塞散热孔，保护槽盒内的电缆。无机防火槽盒防火性能经国家固定耐火检验中心所对60分钟耐火试验，电缆无损害。支撑的结构性好，可有效地固定无机防火槽盒。

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