中低压交联电缆集群敷设载流量的计算  

Calculation of Current Rating for Medium and Low Voltage XLPE Cable in Cluster Laying

作　　者：樊友兵[1] 张丽 蒙绍新[1] 苗付贵[1] 蓝耕 周韫捷 李煜 范云刚 

机构地区：[1]武汉高压研究所,武汉430074 [2]上海市区供电公司,上海200080 [3]上海电缆输配电公司,上海200072

出　　处：《高电压技术》2005年第10期59-60,共2页High Voltage Engineering

摘　　要：根据IEC60287标准计算了中低压电缆在不同集群敷设方式、环境温度及土壤热阻下恒定负荷的稳态载流量,分析温度、土壤热阻系数对复杂情况敷设电缆群载流量影响程度的结果表明:土壤热阻系数是埋地集群敷设电缆载流量的关键影响因素,实际应用中,选择合适的土壤组分是增加集群敷设电缆载流量的重要手段。According to the cluster laying of power cable, the steady current rating ot MV or LV XLPE caule in different laying status, in different temperatures of circumvents, in different soil thermal resistance ,was calculated according to IEC 60287 standard, and the effect of the temperature and the soil resistance coefficient on the result are also investigated. The result show the coefficient of coil resistance plays the most important role in the current rating for cable in cluster laying, and the selecting of appropriate soil component is an important method to increase the current rating for cable in cluster laying.

关 键 词：交联电缆 集群敷设 载流量 

分 类 号：TM757[电气工程—电力系统及自动化]