浅析不同类型防火电缆的载流量  

The Brief Research of Fire Resistant Cables' Current-Carrying Capacity for Different Types

作　　者：李治[1] 任虹光 曹永刚[1] 梁玉莹 

机构地区：[1]江苏亨通电力电缆有限公司,江苏苏州215234

出　　处：《电线电缆》2018年第1期44-46,共3页Wire & Cable

摘　　要：在建筑消防设计领域,防火电缆越来越受到重视,但目前缺乏该类电缆载流量的研究,严重影响了选型和推广应用。分析了三种不同类型防火电缆的结构特点,基于归一化原理研究了云母带/气隙复合绝缘热阻,测量了防火电缆常用材料的热阻系数,计算了不同类型防火电缆的载流量,并进行了对比分析。In the field of building fire protection design, fire resistant cables attracted more and more attention. The lack of current-carrying capacity impeded the selection and promotion. This paper analyzed the structural characteris-tics of three different types of fire resistant cables. Based on the normalization principle, the thermal resistance of mi-ca ribbon /air gap composite insulation was researched. The thermal resistance of materials commonly used in fire re-sistant cables measurement were measured. The current carrying capacity of different types of fire resistant cable was calculated and analyzed together.

关 键 词：防火电缆 热阻 归一化原理 载流量 

分 类 号：TM246.9[一般工业技术—材料科学与工程]