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随着我国现代化建设的不断推进,为保障高层建筑、写字楼、居民小区中电力系统的安全、稳定运行,电线电缆的综合性能至关重要。特别是现今我国频发电线电缆的老化、短路等电气问题引发的火灾,使得人们对电气火灾危险性认识程度加深,对于电气系统的防火性能要求逐渐变高。因此,除加强民众的消防意识外,也需深度研究电线电缆的防火性能,设计防火性能高的电缆产品,保证人民大众的生命财产安全。本文分析了电线电缆的起火原因、防火机理、防火性能,并结合其燃烧特性对防火性能设计进行了综述。
With the continuous promotion of China’s modernization drive, in order to protect the safety and stability of the power system in high-rise buildings, office buildings and residential quarters, the comprehensive performance of wire and cable is of utmost importance. In particular, the fire caused by the electrical problems such as aging and short-circuiting of our country’s frequent wire and cable in recent years has deepened people’s awareness of the danger of electrical fire and gradually raised the requirements on the fire performance of electrical systems. Therefore, in addition to strengthening public awareness of fire protection, it is also necessary to conduct a thorough study of the fire performance of wire and cable, design cable products with high fire performance and ensure the safety of people’s lives and property. This paper analyzes the causes of fire, fireproof mechanism and fireproof performance of wire and cable, and summarizes the design of fireproof performance with its combustion characteristics.