民用建筑阻燃线缆的分析

Analysis of Flame Retardant Cable in Civil Buildings

研究了民用建筑中阻燃电缆选择的基本原则。结合GB 31247—2014《电缆及光缆燃烧性能分级》及GB/T 19666—2019《阻燃和耐火电线电缆或光缆通则》中提供的两种阻燃线缆的试验标准,介绍两种实验条件下线缆的燃烧性能,总结共通性与差异,为设计人员正确选用阻燃线缆提供依据。

The basic principles for the selection of flame-retardant cables in civil buildings are studied.In combination with the test standards for two kinds of flame retardant cables provided in the national standard specification GB 31247—2014“Classification of Flammability of Cables and Optical Cables”and GB/T 19666—2019“General Rules for Flame Retardant and Fire-resistant Wires and Cables or Optical Cables”,this paper introduces the flammability of cables under the two experimental conditions,summarizes the similarities and differences,and provides the basis for designers to correctly select flame retardant cables.