| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric field grading material which permits easy optimization of processability and electrical properties in the field of medium voltage (MV) and high voltage (HV) elements.SOLUTION: At one end 21a of a power cable 20a, the electric field grading material according to the invention replaces, as a layer 1a, a part of an outer semi-conducting layer 12a of the power cable, so that the layer 1a longitudinally extends in the extension from the outer semi-conducting layer to the end 21a. |
