热塑性聚丙烯绝缘中压电力电缆绝缘的热稳定性  

Insulation Thermal Stability of Thermoplastic Polypropylene Insulated Medium Voltage Power Cables

作　　者：祝军 周兵兵 李斌 周云峰 韩啸 时佰万 ZHU Jun;ZHOU Bingbing;LI Bin;ZHOU Yunfeng;HAN Xiao;SHI Baiwan(Jiangsu Shangshang Cable Group Co.,Ltd.,Liyang 213300,China)

机构地区：[1]江苏上上电缆集团有限公司,溧阳213300

出　　处：《电线电缆》2025年第2期18-23,共6页Wire & Cable

摘　　要：为研究热塑性聚丙烯(polypropylene,PP)绝缘中压电力电缆绝缘的热稳定性,分别对PP绝缘与交联聚乙烯(cross-linkedpolyethyline,XLPE)绝缘中压电力电缆开展温度为250℃、短路时间为1~7s的短路试验,测试并分析短路试验前后PP绝缘与XLPE绝缘的结构尺寸、机械物理性能和电气性能。试验结果表明,在短路电流试验前后,PP绝缘与XLPE绝缘的结构尺寸、机械物理性能和电气性能均无明显变化,即PP绝缘中压电力电缆具备与XLPE绝缘中压电力电缆同样的短路能力。研究结果为PP绝缘电缆在输配电领域的应用及推广提供了数据支撑,同时也可为生产制造企业开发PP绝缘中压电力电缆提供研究方向。In order to study insulation thermal stability of thermoplastic polypropylene(PP)insulated medium voltage power cables,short-circuit test was carried out on PP insulated and and cross-linked polyethylene(XLPE)insulated medium voltage power cables with a conditional temperature of 250℃ and short-circuit time of 1~7 s.Structural size,mechanical and physical properties,and electrical properties of PP insulation and XLPE insulation before and after short circuit test were tested and analyzed.Results showed that structural size,mechanical and physical properties,and electrical properties of PP insulation and XLPE insulation had no significant change before and after the short-circuit test,which was that PP insulated medium voltage power cables had the same short-circuit capability as XLPE insulated medium voltage power cables.Research results could provide data support for application and promotion of PP insulated cables in the field of transmission and distribution,and also provide research direction for development of PP insulated medium voltage cables in industry manufacturing enterprises.

关 键 词：热塑性聚丙烯绝缘 交联聚乙烯绝缘 绝缘热稳定性 短路 

分 类 号：TM247[一般工业技术—材料科学与工程]