摘要
近年来,国内研制的聚烯烃复合绝缘子对鸟害防治有明显的改善效果。为研究其相应性能,对聚烯烃伞套材料进行了硬度试验、可燃性试验、材料电气性能试验以及1000 h紫外光试验,并与硅橡胶材料的相应性能进行了比对分析。结果表明:聚烯烃材料的硬度值较高,采用垂直燃烧法对两种材料进行了可燃性试验,依据标准评定等级均为V-0级。聚烯烃材料的表面、体积电阻率和交流击穿强度均比硅橡胶材料要高,尤其是体积电阻率高了近3个数量级。两种材料经过光老化试验后均未出现明显的表面降解现象,但其力学性能均有所降低,尤其是硅橡胶材料的拉伸强度下降明显,比未进行光老化的材料降低了11.8%,而聚烯烃材料在光老化试验后能保持较好的力学性能。
In order to analysis and compare the performance with different housing materials for composite insulator,hardness test,flammability test,electrical performance test and accelerated weathering test forpolyolefin material and silicone rubber material were carried out respectively.The results showed that the polyolefin materialhad higher hardness,and the vertical burning classification of both materials was V-0.The surface resistivity,volume resistivity and AC breakdown strength of polyolefin material were higher than silicone rubber material,particularly the volume resistivity was about 1000 times higher than silicone rubber material.After 1000 h accelerated weathering test,there was no obviously surface degradation of either material,but the mechanical performance of material was decreased.Particularly,the tensile strength of silicone rubber material obviously decreased,which was 11.8%lower than untreated one.But the polyolefin material hadbetter mechanical properties after accelerated weathering test.
作者
彭静
井谦
何远华
刘于新
严姗芝
全一武
蔡俊
赵磊
PENG Jing;JING Qian;HE Yuanhua;LIU Yuxin;YAN Shanzhi;QUAN Yiwu;CAI Jun;ZHAO Lei(Xi'an High Voltage Apparatus Research Institute Co.,Ltd.,Xi’an 710077,China;Jiangsu Jinsanli Power Equipment Industrial Co.,Ltd.,Nanjing 211164,China;Nanjing University,Nanjing 210023,China;China Qiyuan Engineering Corporation Co.,Ltd.,Xi'an 710018,China)
出处
《电瓷避雷器》
CAS
北大核心
2020年第2期244-249,共6页
Insulators and Surge Arresters
关键词
复合绝缘子
聚烯烃
硬度
紫外光
电气性能
composite insulator
polyolefin
hardness
ultraviolet
electrical properties
