KR20000007312A - Bridging polyethylene insulating copper sheath power cable - Google Patents
Bridging polyethylene insulating copper sheath power cable Download PDFInfo
- Publication number
- KR20000007312A KR20000007312A KR1019980026591A KR19980026591A KR20000007312A KR 20000007312 A KR20000007312 A KR 20000007312A KR 1019980026591 A KR1019980026591 A KR 1019980026591A KR 19980026591 A KR19980026591 A KR 19980026591A KR 20000007312 A KR20000007312 A KR 20000007312A
- Authority
- KR
- South Korea
- Prior art keywords
- power cable
- layer
- conductor
- copper sheath
- insulating
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Insulated Conductors (AREA)
Abstract
Description
본 발명은 가교 폴리에틸렌 절연 동시스 전력 케이블에 관한 것으로, 특히 도체를 동으로 구성하고, 상기 도체 외주연에 내외부 반도전층 및 가교 폴리에틸렌 절연층을 형성하며, 금속 차폐층으로 파부형 동시스를 피복후 그 위에 비닐로 압출성형하여 345KV 가교 폴리에틸렌 동시스 전력 케이블을 제작하는 것을 특징으로 하는 가교 폴리에틸렌 절연 동시스 전력 케이블에 관한 것이다.The present invention relates to a crosslinked polyethylene insulated synchronous power cable, and in particular, the conductor is composed of copper, and an inner and outer semiconducting layer and a crosslinked polyethylene insulating layer are formed on the outer circumference of the conductor, and the breakable simultaneous is coated with a metal shielding layer. The present invention relates to a crosslinked polyethylene insulated synchronous power cable characterized by producing an 345 KV crosslinked polyethylene synchronous power cable by extrusion molding with vinyl thereon.
일반적으로, 대도시 지역에서의 345KV 전력계통의 연계 및 대전력 수송 등을 목적으로 하는 345KV 지중 송전선으로 현재 OF(Oil Filled) 전력 케이블이 사용되고 있다.Generally, OF (Oil Filled) power cables are currently used as 345KV underground transmission lines for the purpose of linking 345KV power systems and transporting large power in metropolitan areas.
도 1은 절연유가 함유되는 일반적인 전력 케이블 단면도로써, 아연도금 동 스파이럴(1) 상에 도체(2)가 위치하고, 그 위에 카본지(3)와 절연지(4) 및 카본지 (5)순서로 절연층을 형성하며, 그 위로 차폐층(6)을 형성하고, 그 위로 알루미늄 시스(7) 및 방식층(8)을 형성한 구조를 갖는다.1 is a cross-sectional view of a general electric power cable containing insulating oil, in which a conductor 2 is placed on a galvanized copper spiral 1, and an insulating layer is formed on the carbon paper 3, the insulating paper 4, and the carbon paper 5 in this order. And a shielding layer 6 formed thereon, and an aluminum sheath 7 and an anticorrosive layer 8 formed thereon.
그리고, 도 1에서와 같이 OF 전력 케이블은 금속 시스 내부에 유(油) 통로로 도체를 중공형으로 제작하고 그 위에 절연체로서 종이를 사용하는 구조로 되어 있으며, 저염도의 절연유를 케이블에 충전하고, 상시 대기압 이상의 압력을 외부에 설치한 유조에 의해서 가하고, 절연체 내에 갭(Gap)이 발생되지 않도록 완전한 유침지 절연을 구성하는 형태로 되어 있다.As shown in FIG. 1, the OF power cable has a structure in which the conductors are made hollow by an oil passage inside the metal sheath and paper is used as the insulator, and the low salinity insulating oil is charged in the cable. In this case, the oil is provided with an external pressure of at least atmospheric pressure, and a complete oil-immersion insulation is formed so that a gap is not generated in the insulator.
따라서, OF 케이블의 운전중 케이블의 온도변화 또는 부하에 따른 내부 유압 변동을 흡수하기 위하여 별도의 유조장치를 설치하여야 한다.Therefore, a separate oil tank should be installed to absorb the internal hydraulic fluctuation according to the temperature change or load of the cable during the operation of the OF cable.
또한, 절연유를 사용해야 하기 때문에 환경오염 문제가 발생하며, 케이블 부설설비가 복잡하여 시공 및 유지보수가 어려운 문제점이 있었다.In addition, there is a problem that environmental pollution occurs because the insulating oil must be used, and the installation and maintenance of the cable installation equipment is difficult.
따라서 본 발명은 상기와 같은 문제를 해결코자 하는 것으로, 국내 345KV 전력 계통에서 지중 송전 선로용으로 사용하는 상시 최고 허용온도가 90℃이며, 최대 사용전압이 362KV인 가교 폴리에틸렌(XLPE) 절연 파부형(Corrugated) 동시스 전력 케이블을 제공하는데 그 목적이 있다.Therefore, the present invention is to solve the above problems, cross-linked polyethylene (XLPE) insulation wave type of the maximum permissible temperature is always 90 ℃, the maximum operating voltage is 362KV used for underground transmission line in domestic 345KV power system ( Its purpose is to provide corrugated simultaneous power cables.
상기 목적을 달성하기 위한 수단으로,As a means for achieving the above object,
본 발명은 도체를 동으로 구성하고, 상기 도체 외주연에 내외부 반도전층 및 가교 폴리에틸렌 절연층을 형성하며, 금속 차폐층으로 파부형 동시스를 피복후 그 위에 비닐로 압출성형하여 345KV 가교 폴리에틸렌 동시스 전력 케이블을 제작하는 것이 특징이다.The present invention is composed of a copper conductor, the inner and outer semiconducting layer and cross-linked polyethylene insulation layer formed on the outer periphery of the conductor, coated with a metal shield layer of the break-type synths and extruded with vinyl on the 345KV crosslinked polyethylene synths It is characterized by the manufacture of power cables.
도 1은 절연유가 함유되는 일반적인 전력 케이블 단면도.1 is a cross-sectional view of a general power cable containing insulating oil.
도 2는 본 발명의 동시스 전력 케이블 단면도.2 is a cross-sectional view of a simultaneous power cable of the present invention.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
1: 아연도금 동 스파이럴 2: 도체1: galvanized copper spiral 2: conductor
3,5: 카본지 4: 절연지3,5: carbon paper 4: insulating paper
6: 차폐층 7: 알루미늄 시스6: shielding layer 7: aluminum sheath
8: 방식층 11: 도체8: anticorrosive layer 11: conductor
12: 내부 반도체층 13: XLPE 절연층12: internal semiconductor layer 13: XLPE insulation layer
14: 외부 반도전층 15: 반도전성 테이프14: outer semiconducting layer 15: semiconductive tape
16: 파부 동시스 17: 비닐 방식층16: Pabu Sim simultaneous 17: Vinyl anticorrosive layer
이하에서 도면을 참조로 상세히 설명하면 다음과 같다.Hereinafter, with reference to the drawings in detail as follows.
도 2는 본 발명의 가교 폴리에틸렌 전력 케이블의 종단면도로써, 도시한 바와같이, 동으로 이루어진 도체(11) 외주연에 내부 반도전층(12)과 가교 폴리에틸렌 절연층(13)과 외부 반 도전층(14)을 형성하여 절연체 계면에서의 부분방전 억제와 전계완화를 꾀한다.FIG. 2 is a longitudinal sectional view of the crosslinked polyethylene power cable of the present invention. As shown, the inner semiconducting layer 12, the crosslinked polyethylene insulating layer 13, and the outer semiconducting layer ( 14) to prevent partial discharge at the interface of the insulator and to relax the electric field.
그리고 그 외주연에 반 도전성 테이프(15)를 부착하고, 금속 차폐층으로 파부형 동시스(16)를 피복후 그 위를 비닐(17)로 압출 성형한 345KV 가교 폴리에틸렌 절연 동시스 전력 케이블을 제작하게 된다.Then, a 345KV crosslinked polyethylene insulated synchronous power cable was fabricated by attaching the semi-conductive tape 15 to the outer circumference, covering the breakable synchronous sheath 16 with a metal shielding layer, and extruding it with vinyl 17 thereon. Done.
또한, 본 발명품인 XLPE 절연 케이블은 열경화성인 폴리에틸렌의 분자구조를 입체망 구조(가교)로 일반 압축원형(또는 분할압축)도체 위에 동심원상으로 압출 성형한 것으로 상기의 OF 전력 케이블에 비하여 다음과 같은 장점을 가지고 있다.In addition, the XLPE insulated cable of the present invention is a three-dimensional network structure (crosslinking) of the thermosetting polyethylene in a concentrically extruded on a general compression circle (or split compression) conductor as compared to the OF power cable as described below It has advantages
1. 유전체 손실이 적고, 연속 최고허용 온도가 90℃로서 송전용량이 크다.1. Dielectric loss is small, continuous maximum allowable temperature is 90 ℃, and transmission capacity is large.
2. 케이블외 부설설비가 단순해 시공, 유지보수가 간편하다.2. Simple installation and maintenance because of the simple installation equipment other than cables.
3. 절연유에 의한 환경오염등이 없다.3. There is no environmental pollution by insulating oil.
4. 난연성이 우수하다.4. Excellent flame retardancy.
특히, 345KV 지중 송전선로에는 그 중요성을 고려하여 선로의 신뢰성 및 안정성을 확보하고자 전체 구간을 전력구로 시공되고 있으며, 따라서 전력구내 화재시 OF 전력 케이블로 화재의 확산을 막기위해 OF 전력 케이블을 FRP 방재 트라푸에 내장시켜야 하는데 반해 본 제품에는 방재 트라푸내에 설치하지 않아도 되는 장점이 있다.In particular, the 345KV underground transmission line is constructed in the entire section to secure the reliability and stability of the line considering the importance of the 345KV underground transmission line. This product has the advantage that it does not need to be installed in the disaster trap.
또한, 본 발명품의 금속차폐층으로 기계적, 전기적 특성 및 부식 저항성이 특히 우수한 동 스트립을 이용하여 케이블 절연 코아위에 원통형으로 성형하여 아르곤 아크 용접으로 조관후, 가요성을 주기 위해 파부형상으로 성형한 동시스를 적용하였다.In addition, the metal shielding layer of the present invention was formed into a cylindrical shape on the cable insulation core by using a copper strip having excellent mechanical and electrical properties and corrosion resistance, and after argon arc welding, it was formed into a wave shape to give flexibility. Was applied.
상술한 바와같이 구성되는 본 발명은 유전체 손실이 적고, 연속 최고허용 온도가 90℃로서 송전용량이 크며, 케이블외 부설설비가 단순해 시공, 유지보수가 간편하고, 절연유에 의한 환경오염등이 없으며, 난연성이 우수한 효과가 있다.The present invention constructed as described above has a low dielectric loss, a continuous maximum allowable temperature of 90 ° C., a large transmission capacity, and simple installation and maintenance of the cable and other installation facilities, and there is no environmental pollution due to insulating oil. It is effective in flame retardancy.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980026591A KR20000007312A (en) | 1998-07-02 | 1998-07-02 | Bridging polyethylene insulating copper sheath power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980026591A KR20000007312A (en) | 1998-07-02 | 1998-07-02 | Bridging polyethylene insulating copper sheath power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20000007312A true KR20000007312A (en) | 2000-02-07 |
Family
ID=19542825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019980026591A KR20000007312A (en) | 1998-07-02 | 1998-07-02 | Bridging polyethylene insulating copper sheath power cable |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20000007312A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020073949A (en) * | 2001-03-17 | 2002-09-28 | 오세준 | Pipe for Blocking Electromagnetic Wave Using Closed Layer in Underground Cable |
-
1998
- 1998-07-02 KR KR1019980026591A patent/KR20000007312A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020073949A (en) * | 2001-03-17 | 2002-09-28 | 오세준 | Pipe for Blocking Electromagnetic Wave Using Closed Layer in Underground Cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3391243A (en) | Enclosed electric power transmission conductor | |
| JP5674961B2 (en) | High voltage electric cable | |
| US4256921A (en) | Moisture resistant cable | |
| US6917272B2 (en) | Electric device | |
| CN105609204A (en) | +/-320 kV ultra-high voltage cross-linked polyethylene insulated flexible direct-current power cable | |
| CN215183247U (en) | Intelligent monitoring high-waterproof ultrahigh-voltage power cable | |
| US4783576A (en) | High voltage gas filled pipe type cable | |
| US3202754A (en) | Combined duct and electric cable | |
| CN210429344U (en) | Special long stator cable for magnetic suspension | |
| EP3172808B1 (en) | High voltage power transmission line | |
| KR20210120368A (en) | Connecting Structure of Power Cable Conductor And Connecting Box Of Power Cable Using The Same | |
| CN100449653C (en) | High-pressure insulation core with lining layer | |
| KR20000007312A (en) | Bridging polyethylene insulating copper sheath power cable | |
| KR101625812B1 (en) | A tubular insulation device, a high voltage power arrangement and a method for providing an insulated high voltage power cable | |
| GB1450975A (en) | Electrical induslation structure suitable for low-cooled cables | |
| Miranda et al. | Self-contained oil-filled cables. A review of progress | |
| Johnson et al. | Operating parameters of compressed-gas-insulated transmission lines | |
| CN204348423U (en) | Aluminum-alloy wire shielding high-tension cable | |
| CN220420292U (en) | Termite-proof rat-proof cross-linked polyethylene insulated ultra-high voltage power cable | |
| CN209880228U (en) | Full-water-blocking medium-voltage cable | |
| CN210429330U (en) | Uncoated long stator cable for magnetic suspension rail transit | |
| CN216084364U (en) | Metal box type composite shielding tube type insulating bus | |
| CN114822982B (en) | DC submarine cable | |
| CN216250140U (en) | Composite insulating tube bus structure | |
| KR102096111B1 (en) | Premolded joint for DC cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E601 | Decision to refuse application |