2H.Muto et al. Development of New Diagnostic Method for Hot-Line XLPE Cables With Water Trees. IEEE Trans. on Power Delivery. Vol.PWRD-2, No.1, 1987.
3A.Nakajima. Development of a Hot-line Diagnostic Method for XLPE Cables and the Measurement Results[J]. IEEE Trans. on Power Delivery. Vol.4,No.2,April 1989.