US 12,283,407 B2
High-voltage power cable
Young Eun Cho, Seoul (KR); Sue Jin Son, Gunpo-si (KR); and Yeo Ool Shin, Jungnang-gu (KR)
Assigned to LS CABLE & SYSTEM LTD., Anyang-si (KR)
Appl. No. 18/014,983
Filed by LS CABLE & SYSTEM LTD., Anyang-si (KR)
PCT Filed Jul. 6, 2021, PCT No. PCT/KR2021/008612
§ 371(c)(1), (2) Date Jan. 6, 2023,
PCT Pub. No. WO2022/010244, PCT Pub. Date Jan. 13, 2022.
Claims priority of application No. 10-2020-0083484 (KR), filed on Jul. 7, 2020; and application No. 10-2021-0088557 (KR), filed on Jul. 6, 2021.
Prior Publication US 2023/0260678 A1, Aug. 17, 2023
Int. Cl. H01B 9/02 (2006.01); G01N 25/48 (2006.01); H01B 3/30 (2006.01); H01B 7/02 (2006.01)
CPC H01B 9/027 (2013.01) [G01N 25/4866 (2013.01); H01B 3/30 (2013.01); H01B 7/0275 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A high-voltage power cable comprising:
a conductor;
an inner semiconducting layer, covering the conductor;
an insulating layer, covering the inner semiconducting layer, which comprises crosslinked polyethylene (XLPE) or non-crosslinked polypropylene (PP);
an outer semiconducting layer, covering the insulating layer;
a shielding layer, covering the outer semiconducting layer; and
an outer cover, covering the shielding layer;
wherein when the insulating layer is divided into three equal parts to obtain an inner layer, an intermediate layer, and an outer layer according to a thickness, the difference in crystallinity between a layer with highest crystallinity and a layer with lowest crystallinity is 10% or less.