0引言近年来,公共场所建筑发生火灾的频次较高,在造成一定经济损失的同时,常伴随着人员伤亡,而火灾中人员伤亡的最主要因素就是大量的有毒气体和烟雾。虽然传统的阻燃电缆、低卤低烟阻燃电缆因采用含卤聚合物或含卤阻燃剂组合而成的混合物,具有了良好的阻燃性能,但一旦发生火灾,电缆燃烧后仍会产生一定量烟雾和有毒的腐蚀性气体,妨碍救火工作和人员疏散,腐蚀仪器和设备。因此,对于众多人员聚集的封闭场所(如地铁、旅馆、展览大厅 0 Introduction In recent years, buildings in public places have a higher frequency of fires, causing some economic losses. At the same time, they are often accompanied by casualties. The most important factor in the fire casualties is a large amount of toxic gases and fumes. Although the traditional flame retardant cable, low halogen flame retardant cable as a result of the use of halogenated polymer or halogen flame retardant combination of a mixture has a good flame retardant properties, but in case of fire, the cable will burn after burning Produce a certain amount of smoke and toxic corrosive gases, preventing fire fighting and personnel evacuation, corrosion of equipment and equipment. Therefore, for many people gathered in the enclosed place (such as subway, hotel, exhibition hall