B_(1)级和B2_(ca)级无卤低烟阻燃电缆热释放试验探讨  

Discussion on Heat Release Test of B_(1) and B2_(ca) Halogen-Free Low Smoke Flame Retardant Retardance Cables

作　　者：刘松东 陆枝才 李云欢 LIU Songdong;LU Zhicai;LI Yunhuan(Huizhou Jinlongyu Cable Industrial Development Co.,Ltd.,Huizhou 516100,China;Jinlongyu Group Co.,Ltd.,Shenzhen 51800,China)

机构地区：[1]惠州市金龙羽电缆实业发展有限公司,惠州516100 [2]金龙羽集团股份有限公司,深圳518000

出　　处：《电线电缆》2022年第3期50-54,共5页Wire & Cable

摘　　要：针对小截面导体B_(1)级和B2_(ca)级无卤低烟阻燃电缆,分别按照现行国家标准GB/T 31248—2014 《电缆或光缆在受火条件下火焰蔓延、热释放和产烟特性的试验方法》与欧盟标准BS EN 50399:2011+A1:2016进行试验。通过试验过程和试验结果的对比分析,探讨试样安装对试验结果的影响。对比结果可使广大企业在B_(1)级和B2_(ca)级无卤低烟阻燃电缆开发过程中少走弯路,同时提出现行国家标准GB 31247—2014《电缆及光缆燃烧性能分级》修订的必要性,有助于解决此类线缆的国际贸易争端。For B_(1) and B2_(ca) halogen-free low smoke flame retardant cables with small cross-section conductors, according to the current national standard GB/T 31248—2014 “Test methods for the measurement of flame spread, heat release andsmoke production on electric or optical fibre cables under fire conditions” and the European Standard BS EN 50399:2011+A1:2016. The influence of sample installation on test results is discussed by comparing the test process and test results. The comparison results can make the majority of enterprises in the B_(1) and B2_(ca) class halogen-free low smoke flame retardant cables development process less decircuit, and put forward the current national standard GB 31247—2014 “Classification for burning behavior of eleciric and optical cables” revision of the necessity, which is helpful to solve the international trade disputes of such cable.

关 键 词：无卤低烟阻燃电缆 热释放 产烟总量 BS EN标准 

分 类 号：TM203[一般工业技术—材料科学与工程]