CN102270826A - 500kV and more power cable outdoor terminal - Google Patents
500kV and more power cable outdoor terminal Download PDFInfo
- Publication number
- CN102270826A CN102270826A CN2010101908010A CN201010190801A CN102270826A CN 102270826 A CN102270826 A CN 102270826A CN 2010101908010 A CN2010101908010 A CN 2010101908010A CN 201010190801 A CN201010190801 A CN 201010190801A CN 102270826 A CN102270826 A CN 102270826A
- Authority
- CN
- China
- Prior art keywords
- stress cone
- power cable
- outdoor terminal
- sleeve
- compression mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention relates to a cable accessory in the field of power cable transmission systems, in particular to a 500kV and more power cable outdoor terminal. The terminal comprises a sleeve (1), an insulating agent (2), a stress cone (3), an epoxy sleeve (4) and a spring compression mechanism (5) and further comprises outlet hardware (6), an upper cover board (7), a lower bottom plate (8) and a tail pipe (9). The stress cone (3) is arranged in the sleeve (1). The epoxy sleeve (4) is sleeved outside the stress cone (3). The spring compression mechanism (5) is arranged under the stress cone (3). The stress cone (3) is made of liquid silicon rubber. The terminal disclosed by the invention has the advantages of has steady and reliable performance, high yield, low integrated cost; simple manufacture process, easiness manufacture and low manufacture cost; and more excellent process mouldability and low required forming pressure because before the liquid silicon rubber has lower viscosity and better liquidity being vulcanized; and good product quality.
Description
Technical field
The present invention relates to the electric cable accessories in a kind of power cable transmission system field, particularly a kind of 500kV and the above power cable outdoor terminal of 500kV.
Background technology
At present, in the power cable transmission system of 500kV and the above electric pressure of 500kV, cable mostly is power cable with cross-linked polyethylene insulation, and outdoor terminal is used for being connected between power cable with cross-linked polyethylene insulation and the overhead wire, in order to realize the transmission of electric energy.Construction along with large hydropower station, hydroenergy storage station, extra-high voltage grid, the use amount of outdoor terminal is increasing, in 500kV and the power cable connected system more than the 500kV, outdoor terminal is important connector, and the reliability of outdoor terminal directly has influence on the reliability of transmission system.
In 500kV and the above power cable outdoor terminal of 500kV, the stress cone of the outdoor terminal that generally uses is the structural shape of integral prefabricated insulation at present, the outdoor terminal of this structure, it comprises sleeve pipe, insulating compound, stress cone, epoxy cover and spring compression mechanism, also include outlet gold utensil, upper cover plate, lower shoe and tail pipe, stress cone is contained in the sleeve pipe, the outer suit epoxy cover of stress cone, be provided with spring compression mechanism below the stress cone, stress cone is made by ethylene propylene diene monomer (EPDM) material.It is when insulation shield is cut off that stress cone mainly acts on, play the effect of uniform electric field and reinforced insulation out of doors in the terminal, also provide essential thrust to the surface of cable simultaneously, to improve terminal integral insulation level, stress cone is the critical component of outdoor terminal.Because stress cone is made by ethylene propylene diene monomer (EPDM) material, therefore present 500kV and the above power cable outdoor terminal of 500kV exists following defective:
(1) quality of materials of making stress cone is difficult to control, and the material ethylene propylene diene rubber of stress cone mainly is the terpolymer of ethene, propylene and non-conjugated diene hydrocarbon, has multiple additives to add in the process of mixing, and the prescription complexity is difficult to the control material quality; The viscosity of material height, moulding process is poor, and the rate of finished products of stress cone has only about 60%.
(2) complex manufacturing technology, the former pressure that the machining stress awl needs is big, bulky, production cost height.When ethylene propylene diene monomer (EPDM) material is processed into stress cone, employed equipment is annotated rubber machine structure referring to shown in Figure 3, during making the material ethylene propylene diene rubber is placed in the barrel 21, be expelled in the mould 23 by injection mechanism 22, mould 23 is made up of the mold 23-1 and the bed die 23-2 of mutual coupling, and heating back material sulfidization molding in mold cavity is a stress cone.Because the viscosity of ethylene propylene diene rubber after plasticizing is very high, and it is mobile poor, be injected into die cavity, need tens pressure, die cavity and equipment need bear very high pressure in the injection process, because the mould volume is very big, need the special special use of large-tonnage large-scale notes rubber machine and large mold just can annotate the rubber moulding, and used material wants a shot to finish, therefore produce the stress cone of 500kV and the above power cable outdoor terminal of 500kV, the notes rubber machine tonnage that needs reaches more than 1600 tons, the single injecting glue reaches more than 80 liters and just can meet the demands, such equipment volume is big, the equipment cost height, and increasing of equipment cost causes whole cost of manufacture high.
(3) because ethylene propylene diene rubber has higher hardness, Shao Shi A60～70, poor with the stickiness of cable surface, cause the installation difficulty of product and the increase of hazard rate, the aging back of the watertight aircase of ethylene propylene diene rubber mechanical performance (aging condition: 135 ℃ ± 3 ℃, 7d), compression set≤15～25%, tensile strength rate of change≤20～30%, the rate of change of percentage elongation≤20～30%, material ageing resistance, heat-resisting quantity relatively poor, product will move under≤100 ℃ of environmental conditions, use is restricted, narrow application range.
Though the above power cable outdoor terminal of existing 500kV and 500kV exists above-mentioned defective, people can't solve this technical barrier always for a long time.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of stable and reliable for performance, rate of finished products is high, manufacture craft is simple, making is easy, cost is low, the measured 500kV of matter and the above power cable outdoor terminal of 500kV.
Realize that the above-mentioned purpose technical scheme is: the above power cable outdoor terminal of a kind of 500kV and 500kV, include sleeve pipe, insulating compound, stress cone, epoxy cover and spring compression mechanism, also include outlet gold utensil, upper cover plate, lower shoe and tail pipe, stress cone is contained in the sleeve pipe, the outer suit epoxy cover of stress cone, be provided with spring compression mechanism below the stress cone, described stress cone is made by liquid silastic.
Further, described stress cone is made up of electric conductor and insulator.
Further, described insulating compound is insulating oil or insulating gas.
After adopting technique scheme, therefore the present invention has a lot of benefits owing to the manufacturing materials with the critical component stress cone is improved to liquid silastic by ethylene propylene diene rubber:
(1) stable and reliable for performance, the rate of finished products height, integrated cost is low.Make the quality of materials of stress cone and control easily, the material liquid silicon rubber material of stress cone is simple, need not mix separately, and prescription is simple, easily the control material quality; Viscosity of material is low, and moulding process is good, and the rate of finished products of stress cone can reach about 90%, and properties of product of the present invention are more reliable and more stable, the rate of finished products height, and time-saving energy-saving, integrated cost descends more than 40%.
(2) manufacture craft is simple, makes easily, and cost of manufacture is low.Liquid silastic is a class organic silica gel of relative mixed milling type semisolid silicon rubber and common room temperature vulcanization one pack system silica gel, have lower viscosity and good mobility before the liquid silastic sulfuration, viscosity only is 1/10 of ethylene propylene diene rubber, has more excellent technological forming, therefore manufacture craft is simple, make easily, the briquetting pressure that needs is little, do not need the special special use large-scale notes rubber machine and the large mold of big pressure to carry out the injecting glue moulding, only need just can finish the injecting glue moulding with common injecting glue equipment and mold, as adopt the two component glue-injection machines of liquid silastic, and the glue-injection machine pressure that needs needs only several million, and pressure is 1/10 of ethylene propylene diene rubber notes rubber machine, the injecting glue function is injected continuously, single can reach 400 liters, and the injecting glue amount can satisfy the needs of the stress cone production of 500kV and the above power cable outdoor terminal of 500kV, and equipment volume is little, equipment cost reduces greatly, making apparatus is easy to get, and makes easily, and therefore cost of manufacture of the present invention is low.
(3) good product quality.Because liquid silastic has lower hardness, Shao Shi A35～45 are good with the stickiness of cable surface, product is installed easily, and hazard rate is low, the aging back of the watertight aircase of liquid silastic mechanical performance (aging condition: 135 ℃ ± 3 ℃, 7d), compression set≤15%, tensile strength rate of change≤10%, the rate of change of percentage elongation≤10%, material ageing resistance good, heat-resisting quantity is good, product can long-time running under 100～150 ℃ of environmental conditions, good product quality, applied widely.
The present invention has solved the complicated technical problem that the available technology adopting ethylene propylene diene rubber exists with simple technical scheme cleverly, has solved insoluble always this technical barrier of people for a long time.
Description of drawings
Fig. 1 is the structural representation of the present invention that has part 20 cables;
Glue-injection machine structural representation when Fig. 2 adopts liquid silastic to make for part 3 stress cones of the present invention;
Notes rubber machine structural representation when Fig. 3 adopts ethylene propylene diene rubber to make for existing part 3 stress cones.
Embodiment
The present invention is further detailed explanation below in conjunction with drawings and Examples.
Embodiment one
As shown in Figure 1, the above power cable outdoor terminal of a kind of 500kV and 500kV, include sleeve pipe 1, insulating compound 2, stress cone 3, epoxy cover 4 and spring compression mechanism 5, also include outlet gold utensil 6, upper cover plate 7, lower shoe 8 and tail pipe 9, stress cone 3 is made up of electric conductor 3-1 and insulator 3-2, and described insulating compound 2 is an insulating oil.Stress cone 3 is contained in the sleeve pipe 1, stress cone 3 outer suit epoxy covers 4, be filled with insulating oil in the sleeve pipe 1, be provided with the spring compression mechanism 5 that is connected with tail pipe 9 below the stress cone 3, spring compression mechanism 5 includes spring 5-1 and spring base 5-2, spring 5-1 is arranged between stress cone 8 and the spring base 5-2, and described stress cone 3 is made by liquid silastic.
Embodiment two
As shown in Figure 1, basic identical with embodiment one, different is that described insulating compound 2 is insulating gas, insulation gas filled in the sleeve pipe 1.
As shown in Figure 2; when stress cone 3 of the present invention is made; adopt the two component glue-injection machines of liquid silastic; 100 tons of the glue-injection machine tonnages that needs; the injecting glue function is injected continuously; single can reach more than 300 liters; material with the liquid silicon rubber material of the two components of A component and B component in the manufacturing process is placed on respectively in two packing elements 24 of injector; to expect to annotate in the material pipe 27 by the syringe pump 26 on the injection frame 25; after material mixes through blender 28; be expelled in the die cavity in the mould 29, mould 29 has clamping mechanism 30 lockings, and last mould 29 bakings are made stress cone 1.
The invention is not restricted to the foregoing description, the technical scheme that all employings are equal to replacement or equivalence replacement formation all belongs to the scope of protection of present invention.
Claims (3)
1. 500kV and the above power cable outdoor terminal of 500kV, include sleeve pipe (1), insulating compound (2), stress cone (3), epoxy cover (4) and spring compression mechanism (5), also include outlet gold utensil (6), upper cover plate (7), lower shoe (8) and tail pipe (9), stress cone (3) is contained in the sleeve pipe (1), stress cone (3) outer suit epoxy cover (4), be provided with spring compression mechanism (5) below the stress cone (3), it is characterized in that: described stress cone (3) is made by liquid silastic.
2. 500kV according to claim 1 and the above power cable outdoor terminal of 500kV is characterized in that: described stress cone (3) is made up of electric conductor (3-1) and insulator (3-2).
3. 500kV according to claim 1 and the above power cable outdoor terminal of 500kV is characterized in that: described insulating compound (2) is insulating oil or insulating gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010190801 CN102270826B (en) | 2010-06-03 | 2010-06-03 | 500kV and more power cable outdoor terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010190801 CN102270826B (en) | 2010-06-03 | 2010-06-03 | 500kV and more power cable outdoor terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102270826A true CN102270826A (en) | 2011-12-07 |
| CN102270826B CN102270826B (en) | 2013-06-19 |
Family
ID=45053031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010190801 Active CN102270826B (en) | 2010-06-03 | 2010-06-03 | 500kV and more power cable outdoor terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102270826B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451314A (en) * | 2016-12-02 | 2017-02-22 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Self-tightening type insulation cover for controlling cable core end |
| CN109217224A (en) * | 2018-11-13 | 2019-01-15 | 特变电工昭和（山东）电缆附件有限公司 | A kind of outer terminal of 500kV and 500kV or more AC and DC power cable user |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2845261Y (en) * | 2005-10-11 | 2006-12-06 | 上海三原电缆附件有限公司 | Outdoor terminal of 220 KV crosslinked cable |
| JP2009159743A (en) * | 2007-12-27 | 2009-07-16 | Viscas Corp | Power cable outdoor termination and method for manufacturing the same |
| CN201345528Y (en) * | 2008-12-12 | 2009-11-11 | 浙江永锦电力器材有限公司 | GIS dry type cable terminal |
| CN201690195U (en) * | 2010-06-03 | 2010-12-29 | 江苏安靠超高压电缆附件有限公司 | 500 kV and more than 500 kV power cable outdoor terminal |
-
2010
- 2010-06-03 CN CN 201010190801 patent/CN102270826B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2845261Y (en) * | 2005-10-11 | 2006-12-06 | 上海三原电缆附件有限公司 | Outdoor terminal of 220 KV crosslinked cable |
| JP2009159743A (en) * | 2007-12-27 | 2009-07-16 | Viscas Corp | Power cable outdoor termination and method for manufacturing the same |
| CN201345528Y (en) * | 2008-12-12 | 2009-11-11 | 浙江永锦电力器材有限公司 | GIS dry type cable terminal |
| CN201690195U (en) * | 2010-06-03 | 2010-12-29 | 江苏安靠超高压电缆附件有限公司 | 500 kV and more than 500 kV power cable outdoor terminal |
Non-Patent Citations (2)
| Title |
|---|
| ROLF MAIER等: "《500kV交联聚乙烯电缆系统》", 《国际电力》 * |
| 蓝增珏: "《国外特高压交流输电技术工程简介》", 《湖北电力》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451314A (en) * | 2016-12-02 | 2017-02-22 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Self-tightening type insulation cover for controlling cable core end |
| CN106451314B (en) * | 2016-12-02 | 2018-07-27 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Self-tightening type controls the insulator cap of cable core end |
| CN109217224A (en) * | 2018-11-13 | 2019-01-15 | 特变电工昭和（山东）电缆附件有限公司 | A kind of outer terminal of 500kV and 500kV or more AC and DC power cable user |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102270826B (en) | 2013-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102270827B (en) | Integral prefabricated joint for power cable with 500kV and over 500kV | |
| CN106893325A (en) | Fire resistant flame retardant heat-barrier material, preparation method and application that a kind of high temperature resistant resistance to compression becomes | |
| CN102604296B (en) | Novel cable filler and preparation method thereof | |
| CN101840757A (en) | Manufacturing method for environment-friendly type insulator shell | |
| CN102276986A (en) | Preparation method of silastic composite cable insulating material for nuclear power station | |
| CN201690193U (en) | 500 kV and more than 500 kV power cable outdoor terminal | |
| CN102270824B (en) | 500kV and more power cable dry GIS (Global Information System) terminal | |
| CN103087379A (en) | Room-temperature silane cross-linked polyolefin and its preparation method | |
| CN102270826B (en) | 500kV and more power cable outdoor terminal | |
| CN102220007A (en) | Insulation material for silicone rubber composite cable used in nuclear power station | |
| CN105255022B (en) | For the semiconductive ethylene propylene diene monomer (EPDM) material and preparation method of high-voltage direct-current cable accessory | |
| CN201690195U (en) | 500 kV and more than 500 kV power cable outdoor terminal | |
| CN105255196A (en) | Semi-conductive silicon rubber material for high-voltage direct-current cable accessory and preparation method of semi-conductive silicon rubber material | |
| CN201690194U (en) | Integrated prefabricated joint of power cable of 500kV and above | |
| CN201690192U (en) | Dry type GIS terminal for power cable of 500 kV or more | |
| CN204480824U (en) | A kind of binodal Combined high-strength post composite insulator | |
| CN102898718B (en) | Non-EVA-substrate cross-linked semi-conductive outer shield material used in 35KV cables, and preparation method thereof | |
| CN102270825B (en) | 500 kV or over 500 kV outdoor terminal of power cable | |
| CN109327006A (en) | A kind of preparation method of cable termination main part and cable termination using the main part | |
| CN103194028A (en) | Cable filler and preparation method thereof | |
| CN103554802B (en) | A kind of formula of peelable cable semiconduction external shield material | |
| CN102898717A (en) | Non-EVA substrate crosslinking semiconductive inner shielding material for 35kV cable and preparation thereof | |
| CN103554635B (en) | A kind of preparation technology of strippable semi-conductive external shield material | |
| CN1923898A (en) | Semiconductor equalizing press layer, medium conductivity silicon rubber and technology of preparing synthesis insulator | |
| CN107452439A (en) | A kind of compound insulation sleeve high voltage bus and its manufacture method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 213333 Tianmu Lake Industrial Park, Liyang Economic Development Zone, Jiangsu, China Applicant after: Jiangsu Ankura Smart Transmission Engineering Technology Co., Ltd. Address before: 213333 Tianmu Lake Industrial Park, Liyang Economic Development Zone, Jiangsu, China Applicant before: Jiangsu Ankura EHV Cable Accessories Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: JIANGSU ANKURA EHV CABLE ACCESSORIES CO., LTD. TO: JIANGSU ANKURA SMART TRANSMISSION ENGINEERING TECHNOLOGY CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |