In order to study cold contraction pre-molded joint of power cable and improve its dielectric performance,the effects of stretch on space charge in the double-layer dielectric of EPR and XLPE are studied.

• 为了研制冷收缩预制式电缆接头并改善其介电性能,研究了拉伸对乙丙橡胶和交联聚乙烯所组成的双层介质中空间电荷的影响。