电缆长期允许载流量的影响因素  

Influencing Factors in the Long-Term Allowable Current-Carrying Capacity of Cables

作　　者：赵凯斌 任金玲 王允东 于玉波 赵行斌 

机构地区：[1]西安飞机工业(集团)亨通航空电子有限公司,西安710089 [2]哈尔滨工程大学核安全与仿真技术国防重点学科实验室,哈尔滨150001

出　　处：《光纤与电缆及其应用技术》2015年第6期30-32,共3页Optical Fiber & Electric Cable and Their Applications

摘　　要：根据电缆长期允许载流量的计算方法,结合工程实践,分析了影响电缆长期允许载流量的相关因素,包括导体电阻、绝缘和护套热阻等内在因素以及电缆的敷设方式、运行环境等外部因素,给出了提高电缆长期允许载流量的方法。The factors influencing the long-term allowable current-carrying capacity of cables is analyzed. According to the evaluation methods of long-term allowable current-carrying capacity of cables and relevant engineering experiences, these factors include internal and outer ones. The inter factors include conductor electrical resistance and thermal resistance of insulation and jacket. The outer factors include installation ways and operation environment of the cables. Based on the analysis, the ways to improve the long-term allowable current-carrying capacity of cables are given.

关 键 词：电缆 长期允许载流量 影响因素 

分 类 号：TM75[电气工程—电力系统及自动化]