2005 年 125 巻 2 号 p. 199-205
We have been investigating the residual-charge measurement as a diagnostic method for water-tree deteriorated cross-linked polyethylene cable. In the method that we proposed here, the residual charge component detected by higher AC voltage application could correspond to longer water trees. Therefore, this method is effective to diagnose the degree of water-tree deterioration in the long distance cable line.
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