It is found that among cable accessories materials space charge accumulated less at interface of EDPM/XLPE than them in the SR/XLPE, while the density of deep charge traps is less in SR/XLPE.

• 通过实验比较后发现用于电缆附件的材料中，EPDM/XLPE构成的双层介质中，界面电荷积聚比较少，但SiR/XLPE的双层介质中陷阱密度较少。