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儀表電纜

阻燃電線電纜與耐火電線電纜的區別?

2020-07-25
作者:翊成網絡z

阻燃電線電纜與耐火電線電纜被廣泛的應用于各類工程線路中,這兩種電線電纜雖然在功能上有一定的重合,但是實際上是兩種完全不同的電線電纜。其中阻燃電纜有點很多,比如低煙、低鹵、阻燃等,適用范圍廣泛,但是實際情況是耐火型電線電纜在一定情況下基本可以完全取代阻燃型電線電纜,但是反之則不行。


電線電纜廠家


耐火型電線電纜和阻燃型電線電纜其在所使用的材料和結構上都是有一定不同的。

首先說阻燃型電線電纜,其基本結構是:絕緣層需要采用有阻燃性能的材料,外護層、護套等同樣需要使用阻燃材料,內部的包帶和填充物好也是使用具有一定阻燃效果的材料。

而耐火型電線電纜其達到耐火效果主要原因是,在電線電纜的導體和絕緣層之間增加了一層由耐火材料制成的耐火層。火電纜的耐火層,通常可以采用不同的耐火材料直接包覆在導線上。它可耐長時間的燃燒,即使施加火焰處的高聚物被燒毀,也能夠保證線路正常運行。


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