基于建筑构件耐火试验方法的国外电缆耐火试验标准  

Foreign Cable Fire Resistance Test Standards Based on Fire Resistance Test Methods for Building Components

作　　者：许炼 陈启超 李增旭 XU Lian;CHEN Qichao;LI Zengxu(Jiangsu Hengtong Power Cable Co.,Ltd.,Suzhou 215234,Jiangsu,China)

机构地区：[1]江苏亨通电力电缆有限公司,江苏苏州215234

出　　处：《光纤与电缆及其应用技术》2024年第5期9-11,27,共4页Optical Fiber & Electric Cable and Their Applications

摘　　要：相对于我国常用的固定火源电缆耐火试验标准,基于建筑构件耐火试验方法的国外电缆耐火试验标准对电缆耐火试验方法的规定更严苛。对该类国外电缆耐火试验标准(UL 2196:2012、EN 50577:2015、AS/NZS 3013:2005)进行了梳理,对各标准涉及的试验装置、电缆试样安装、试验升温曲线、试验负载电压及水冲击试验展开了分析对比。该类标准规定的电缆耐火试验方法具有燃烧更剧烈、燃烧温度更高、燃烧规模更大等特点,试验环境与真实的火灾现场较为一致,试验结果对电缆耐火性能评价更客观、更严谨。Compared to the commonly used fixed fire source cable fire resistance test standards in China,the foreign cable fire resistance test standards based on building component fire resistance test methods have stricter regulations on cable fire resistance test methods.This type foreign cable fire resistance test standards(UL 2196:2012,EN 50577:2015,AS/NZS 3013:2005)are sorted out.The testing device,cable sample installation,test temperature rise curve,test load voltage,and water impact test involved in each standard are analyzed and compared.The cable fire resistance test methods specified in this type of standards have the characteristics of more intense combustion,higher combustion temperature,and larger combustion scale.The test environment is more consistent with the real fire scene,and the test results evaluate the fire resistance performance of cables more objectively and rigorously.

关 键 词：耐火电缆 耐火试验标准 建筑构件耐火试验方法 

分 类 号：TM247[一般工业技术—材料科学与工程]