POWER CABLE TERMINATION STRUCTURE

WIPO Patent Application WO/2023/190975

A1

The present invention provides a power cable termination structure which mitigates stress associated with expansion and contraction of a power cable due to heat and the like, which mitigates an electric field at the termination of the power cable, and with which leakage of an insulating fluid from an insulator tube does not readily occur.　A termination structure 1 of a power cable 2 comprises: an insulator tube 3 which accommodates a termination 20 of the power cable 2 and which is filled internally with an insulating fluid; a metal lower flange 4 with a through-hole 40 into which the termination 20 is inserted; a metal cylinder 5 that can slidably move with respect to the lower flange 4 in response to expansion or contraction of the power cable 2 with the through-hole 40 being in a sealed state; a sealing structure 6 sealing a top part 5a of the metal cylinder 5 and a stripped portion of an outer semiconducting layer 23; a buffer layer 7 covering the stripped portion of the outer semiconducting layer 23, the buffer layer 7 being located closer to a terminal end 2a than the sealing structure 6; and a metal layer 8 covering the outer surface of the buffer layer 7 and at least the top part 5a of the metal cylinder 5, wherein the metal cylinder 5 and the lower flange 4 are grounded via a lead wire 51.

TOMITA YUDAI (JP)
MORI HIROKI (JP)
SHIGEMORI NAOTO (JP)

PCT/JP2023/013375

October 05, 2023

March 30, 2023

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FURUKAWA ELECTRIC CO LTD (JP)

H02G15/064

JP2019050651A	2019-03-28
JPH052539U	1993-01-14
JP2020182270A	2020-11-05

KURUMA Kiyoshi et al. (JP)

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