jzdq. net. cn如何正确选择阻燃电缆级别 (李燕)Abstract : Considering that the existing designstandards for fire-resistant cables are not completeand the selection of fire-resistant cables in theconstruction market is chaotic , the selection principleof fire-resistant cables are discussed according to ...
从表1可以看出,阻燃级别与非金属含量有关,在焦化高度相同的情况下,非金属含量越高,所要求的阻燃级别就越高。b.GB 31247-2014《电缆及光缆燃烧性能分 级》将阻燃电缆分为A 、B 1、B 2、B 34个等级,主要技术参数如表2所示。表2可以看出,GB 31247-2014不仅考虑了电 How to Select the Level of Fire ⁃...