In response to technical difficulties in design and manufacturing process of B1 flame-retardant cables,especially in achieving requirements of flaming droplets/particles of d0 grade in GB 31247-2014.Manufacturing process of B1 flame-retardant and flaming droplets/particles cables(abbreviated as B1/d0 flame-retardant cables)of d0 grade was systematically analyzed and optimized by studying sheath materials,cable structures,production processes,and other aspects.Results showed that selection of sheath materials with excellent combustion shelling and self-extinguishing properties,selection of cable auxiliary materials,and strict control of production process had a certain impact on flaming droplets/particles of d0 grade,with could provide reference for cable enterprises in development and manufacturing process of B1/d0 flame-retardant cables.
关键词
B1级阻燃电缆/燃烧滴落物/微粒d0级/燃烧成壳/自熄性
Key words
B1 flame-retardant cables/flaming droplets/particles of d0 grade/combustion shelling/self-extinguishing
万方数据