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51问答网 > 阻燃型防火电缆桥架有哪几种类型

阻燃型防火电缆桥架有哪几种类型

2025-04-07 02:45:06

推荐回答（1个）

回答1：

1、内阻燃型防火电缆桥架，是在槽式或托盘式电缆桥架和内表面涂覆阻燃材料或镶嵌阻燃板，常用于阻燃隔断，即当电缆着火时，由于阻燃段的作用，可限制着火电缆的延燃长度。
2、外阻燃型防火电缆桥架，是在其外表面涂覆一层阻燃材料，防止外来火焰破坏钢制桥架的机械强度，适用于多火灾的场所。
3、全阻燃型防火电缆桥架，是在内、外表面涂覆阻燃材料或镶嵌阻燃板，既能保护钢制桥架的机械强度，又能限制着火电缆的延燃长度。

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