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15问答网 > 一条送风风管上有两个送风防火阀,当火灾发生时是否应该全部关掉？是否有国标或者规范规定？

一条送风风管上有两个送风防火阀,当火灾发生时是否应该全部关掉？是否有国标或者规范规定？

2025-04-03 08:37:58

推荐回答（1个）

回答1：

防火阀在火灾发生时应该全部关闭，该要求在《建筑设计防火规范》有明确条文。
解释：通风管的铺设一般都穿越了防火分区，为了防止火势从一个防火区域蔓延至另一个防火分区，建规要求，在风管穿越防火分区处必须安装防火阀，并且火灾发生时要关闭该防火阀。

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