摘要
通过对比研究了纯 PE、XLPE以及含乙烯—丙烯酸共聚物 (EAA)试样的吸水性能 ,并对吸水后样品进行了空间电荷分布的测定。结果发现加入 EAA后 ,尽管试样的吸水率增加 ,却能够抑制试样中的空间电荷形成 ,阻止空间电荷向试样更深处发展。加入少量的极性物质可抑制水树的发生 。
The water absorbing properties of PE, XLPE and samples with ethylene acrylic acid (EAA) are studied by the comparison analysis. The space charge distributions of samples after water absorbing are determined. The experimental results show that the ratio of water absorbing increases in samples with EAA. But this can suppress the formation of space charge and prevent the space into the depths of samples. Therefore, adding a small account of EAA may inhibit the water treeing and prolong the life of cable.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2000年第5期9-10,13,共3页
High Voltage Engineering
基金
国家自然科学基金资助项目! (597770 0 1 )
关键词
聚乙烯电力电缆
吸水性能
空间电荷分布
polyethylene water absorbing space charge water treeing cable
