Title:
INTERMEDIATE JUNCTION BOX FOR ULTRA-HIGH-VOLTAGE DIRECT CURRENT POWER CABLE
Document Type and Number:
WIPO Patent Application WO/2016/085071
Kind Code:
A1
Abstract:
The present invention relates to an intermediate junction box for an ultra-high-voltage direct current power cable. According to the present invention, the intermediate junction box for an ultra-high-voltage direct current power cable connects, to each other, one pair of ultra-high-voltage direct current cables, which respectively comprise, in order from the center thereof to the outside thereof, a conductor, an inner semi-conductive layer, an insulating layer and an outer semi-conductive layer, and the intermediate junction box comprises: a connection sleeve encompassing end portions of the conductors of the one pair of cables and electrically connected to the conductors; a first electrode electrically connected to the conductors of the one pair of cables; one pair of second electrodes spaced apart from each other at a predetermined distance so as to be provided to face each other, and connected to the outer semi-conductive layers of the one pair of cables; a junction box insulating layer provided to encompass the first electrode and the second electrodes; and a joint sleeve comprising a junction box shielding layer provided on the outer side of the junction box insulating layer, wherein the junction box insulating layer comprises liquid silicon rubber provided with a glycol-based additive, which includes ethylene glycol and/or propylene glycol, and provided with at least one of nano-sized organic particles including at least one of silica, silicon carbide, aluminum silicate, calcium silicate, magnesium oxide, zinc oxide, calcium carbonate and carbon black, and a volume resistivity of the junction box insulating layer has a range of 1012 Ω·cm to 1018 Ω·cm between the normal temperature and an operating temperature of the intermediate junction box.
Inventors:
KIM YOON-HYOUNG (KR)
LEE SU-KIL (KR)
CHAE BYUNG-HA (KR)
JEONG GEUN-YOUNG (KR)
HONG SUNG-PYO (KR)
LEE SU-KIL (KR)
CHAE BYUNG-HA (KR)
JEONG GEUN-YOUNG (KR)
HONG SUNG-PYO (KR)
Application Number:
PCT/KR2015/005463
Publication Date:
June 02, 2016
Filing Date:
June 01, 2015
Export Citation:
Assignee:
LS CABLE & SYSTEM LTD (KR)
International Classes:
H02G15/10
Foreign References:
| KR20040080131A | 2004-09-18 | |||
| JP2002078180A | 2002-03-15 | |||
| KR20140115509A | 2014-10-01 | |||
| KR101134222B1 | 2012-04-09 | |||
| JP2003174719A | 2003-06-20 |
Attorney, Agent or Firm:
KIM, Joon Hyun et al. (KR)
김준현 (KR)
김준현 (KR)
Download PDF: