Fire-resistant wire and cable are idfferent from flame-retardant wire and calbe in construcier and material.The former w所谓耐火电线电缆,其结构和材料阻燃电线电缆不同,它可在长时间的燃烧过程中或燃烧后,即施加火焰处的高聚物材料被毁,也能够保证线路正常运行。