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儀表電纜

特種電纜中涂防火料的原因是什么?

2021-04-20
作者:翊成網絡z

首先,在特種電纜上涂抹電纜防火涂料可以用來確保電纜在火焰中不易燃燒,并保證在一定時間內電纜能保持正常運行。電纜防火涂料在燃燒之后會形成炭化層,阻止火苗向電纜內部燃燒,保護電纜線路。其次,與其它防火方式比較,在電纜上涂抹防火耐火的涂料更節約、更方便。


特種電纜廠家


由于特種電纜防火涂料輕薄好散熱,因此對電纜的載流能力影響很小,基本可以忽略不計。當電纜敷設在防火槽盒或消防橋里時,電力電纜的載流能力會降低。因此,在工程中,噴涂防火涂料的能耗低于在罐箱和防火橋梁中鋪設的能耗,降低了工程成本,更經濟實惠。

電纜防火涂料是阻止火災向外和向內蔓延的有效途徑。一般情況下,大多數電纜敷設在管井內,管道井在火災中尤其是高層建筑中應產生煙囪效應。如果電纜不涂防火涂料,很容易引起火災蔓延,形成大規模燃燒。因此,電纜的阻燃性能與火災蔓延有很大關系。


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