CN108521112A - High pressure dry insulated power cable device end - Google Patents
High pressure dry insulated power cable device end Download PDFInfo
- Publication number
- CN108521112A CN108521112A CN201810477576.5A CN201810477576A CN108521112A CN 108521112 A CN108521112 A CN 108521112A CN 201810477576 A CN201810477576 A CN 201810477576A CN 108521112 A CN108521112 A CN 108521112A
- Authority
- CN
- China
- Prior art keywords
- cable
- insulating sleeve
- locating ring
- insulating layer
- revealed section
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/02—Cable terminations
- H02G15/06—Cable terminating boxes, frames or other structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/02—Cable terminations
- H02G15/06—Cable terminating boxes, frames or other structures
- H02G15/064—Cable terminating boxes, frames or other structures with devices for relieving electrical stress
Abstract
The present invention relates to cable termination technical fields, especially a kind of high pressure dry insulated power cable device end, including insulating sleeve, be arranged in insulating sleeve stress cone, be arranged insulating sleeve input end tail pipe, connection gold utensil and the connection contact that is arranged in connection gold utensil in insulating sleeve outlet end are set；It is provided with locating ring in the outlet end of insulating sleeve, locating ring is fixed on insulating layer revealed section, the present invention cleverly uses and locating ring is fixed on the insulating layer revealed section of cable, it can effectively prevent the insulating layer of cable from bouncing back, and to stress cone have the function of positioning and it is conformal, the terminal inner caused by the insulating layer retraction of cable is avoided the phenomenon that electric discharge even punctures occur, the security performance of terminal is high；In addition, for preventing the structure that cable relative termination drops, during peace the flames of anger, without high temperature, securely and reliably, and environmentally friendly, be particularly suitable for the Different high risk sites such as the substation of coal mine, chemical enterprise and high request.
Description
Technical field
The present invention relates to cable termination technical field, especially a kind of high pressure dry insulated power cable device end.
Background technology
With the dilatation of Construction of Intercity Network, mutually it is applied to the demand of the cable termination of mating GIS or transformer equipment
Increase synchronous, currently, existing cable termination includes mainly insulating sleeve (epoxy master mold) and answering in insulating sleeve
Power is bored and gold utensil, and cable is passed through stress cone and is electrically connected with the connection contact in gold utensil with the core of its end, stress cone cladding
On the insulating layer of cable, and stress cone is positioned by spring attachment；
Find that the cable termination of the type obviously has the disadvantage that with using：Cable meeting during being powered power-off
Fever and cooling, are influenced by expanding with heat and contract with cold with cable stress itself, and cable insulation will produce opposite position with cable core
It moves, obvious displacement is generally will appear in cable insulation incision position, if there is displacement, then the stripping size of cable
Covert is changed, this will the field distribution of extreme influence product there is shelf depreciation, very to influence properties of product
To causing to puncture, there is larger security risk.
Invention content
The technical problem to be solved by the present invention is to：In order to solve cable termination in the prior art in the process for being powered and powering off
Middle to expand with heat and contract with cold because generating heat and cooling down will produce, cable coordinates the influence of cable stress itself when expanding with heat and contract with cold, and leads to cable
Insulating layer easy tos produce relative displacement with cable core, and after cable insulation and cable core will produce relative displacement,
The phenomenon that field distribution of extreme influence terminal inner, and then terminal caused to be susceptible to shelf depreciation, or even causing breakdown,
The problem of with higher security risk, now provides a kind of high pressure dry insulated power cable device end, is applicable to 245KV
Transformer or GIS (gas-insulated switchgear device).
The technical solution adopted by the present invention to solve the technical problems is：A kind of high pressure dry insulated power cable equipment is whole
End, including insulating sleeve, be arranged in insulating sleeve stress cone, be arranged insulating sleeve input end tail pipe, be arranged exhausted
The connection gold utensil at edge cannula exit end and the connection contact being arranged in connection gold utensil；
The cable passes through tail pipe and insulating sleeve, one section of core revealed section that the front end of the cable is exposed, on cable
Expose one section of insulating layer revealed section in the position adjacent positioned at core revealed section；
The core revealed section is fixed in connection contact, and the stress cone is set on the insulating layer revealed section of cable,
It is provided with locating ring in the outlet end of the insulating sleeve, locating ring is provided in the outlet end of the insulating sleeve, it is described fixed
Position ring is fixed on insulating layer revealed section, and the front end surface of the stress cone is contacted with locating ring, and the connection gold utensil can limit
Outlet extreme direction movement of the locating ring towards insulating sleeve.
Cleverly locating ring is fixed on insulating layer revealed section using screw in this programme, locating ring is fixed on cable
After on insulating layer revealed section, stress coning row can not only be limited, prevent stress cone to be deformed and slide into connection gold utensil, together
When locating ring and cable insulating layer revealed section connection after, be against on stress cone using locating ring, moreover it is possible to cable be avoided to be powered
The case where bouncing back because of the insulating layer for the cable occurred that expands with heat and contract with cold during power-off, to prevent occurring local put in terminal
Electricity, in addition cause breakdown the phenomenon that.
Further, the locating ring is screwed on insulating layer revealed section, and the screw cap end of the screw is against
On locating ring, the end of thread of the screw is screwed into insulating layer revealed section.
Further, the material of the locating ring is aluminium alloy.
Due to cable because own wt and electrodynamic influence are easy tenesmus, once cable drops, cable can be caused
And there is deviation in terminal cooperation, shelf depreciation occurs, influences properties of product and service life, cable or even the terminal that can fall off when serious,
Cable is because of own wt and the easy tenesmus of electrodynamic influence in order to prevent, and much producers solve this using sealing lead technique at present
Problem, i.e., by leads using open fire burn it is molten after, be applied on electrical cable aluminium sheath, continuous heap poststack, by the aluminium sheath of cable and end
The tail pipe at end links together, however sealing lead technique needs to use open fire, and temperature is higher, therefore can not be suitable for coal mine, change
The Different high risk sites such as work enterprise and the substation of high request；
Further, it is provided with protrusion outside the insulating outer protective cover of the cable, the rear and front end of the protrusion is respectively set
There are outer stationary plates and internal fixation plate, the outer stationary plates and internal fixation plate are clamped in the both sides of protrusion by bolt assembly, described
Outer stationary plates are fixed on the rear end end of tail pipe, and the program is fixedly clamped using outer stationary plates combination internal fixation plate in the convex of cable
On rising, to be combined into one with cable, outer stationary plates and tail pipe are relatively fixed to realize, and then avoid cable because of itself
Weight and electrodynamic influence occur.
Further, the protrusion is wrapped in by the glass fiber tape immersed with epoxyn outside insulating outer protective cover
It is formed after solidification, is combined to form protrusion with glass fiber tape by epoxyn, form the process flames of anger, the nothing of protrusion
High temperature, securely and reliably, and environmental protection, it is applicable to the Different high risk sites such as the substation of coal mine, chemical enterprise and high request.
Further, the outer stationary plates and internal fixation plate are annular in shape, and the outer stationary plates and internal fixation plate are arranged
Outside the insulating outer protective cover of cable.
Further, spring attachment, the spring attachment packet are fixed in the arrival end of the insulating sleeve
End face ring and spring are included, the end face ring is located in insulating sleeve, and one end of the spring is against on the ring of end face, and the other end is against
The rear end of stress cone, the end face ring are against on tail pipe.
The beneficial effects of the invention are as follows：Cleverly use will be determined the high pressure dry insulated power cable device end of the present invention
Position ring is fixed on the insulating layer revealed section of cable, can effectively prevent the insulating layer of cable from bouncing back, and is had to stress cone
Play the role of positioning and it is conformal, avoid because cable insulating layer retraction caused by terminal inner occur electric discharge even breakdown show
As the security performance of terminal is high；In addition, for preventing the structure that cable relative termination drops, during peace the flames of anger,
Without high temperature, securely and reliably, and environmental protection, it is particularly suitable for the Different high risk sites such as the substation of coal mine, chemical enterprise and high request.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the schematic diagram of high pressure dry insulated power cable device end of the present invention；
Fig. 2 is the close-up schematic view of A in Fig. 1；
Fig. 3 is the close-up schematic view of B in Fig. 1；
Fig. 4 is the close-up schematic view of C in Fig. 1.
In figure：1, cable, 1-1, insulating outer protective cover, 1-2, aluminium sheath revealed section, 1-3, insulation screen revealed section, 1-4,
Insulating layer revealed section, 1-5, core revealed section, 2, insulating sleeve, 3, stress cone, 4, tail pipe, 5, connection gold utensil, 6, connection contact,
7, locating ring, 8, screw, 9, protrusion, 10, outer stationary plates, 11, internal fixation plate, 12, bolt assembly, 13, end face ring, 14, spring,
15, copper braid over braid.
Specific implementation mode
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant to the invention, direction and with reference to (for example,
Upper and lower, left and right, etc.) can be only used for helping the description to the feature in attached drawing.Therefore, it is not adopted in restrictive, sense
With detailed description below, and claimed theme is only limited by appended claims and its equivalent form
Range.
Embodiment 1
As shown in Figs 1-4, a kind of high pressure dry insulated power cable device end, including insulating sleeve 2, setting are insulating
Stress cone 3 in casing 2, be arranged 2 input end of insulating sleeve tail pipe 4, connection gold utensil in 2 outlet end of insulating sleeve is set
5 and the connection contact 6 that is arranged in connection gold utensil 5, tail pipe 4 and connection gold utensil 5 are separately fixed at 2 both ends of insulating sleeve；
Cable 1 passes through tail pipe 4 and insulating sleeve 2, one section of core revealed section 1-5 that the front end of cable 1 is exposed, on cable 1
Expose one section of insulating layer revealed section 1-4 in the position adjacent positioned at core revealed section 1-5；
As shown in figure 4, core revealed section 1-5 is fixed in connection contact 6, stress cone 3 is set in outside the insulating layer of cable 1
Reveal on section 1-4, locating ring 7 is provided in the outlet end of insulating sleeve 2, locating ring 7 is set in the front end of insulating layer revealed section 1-4
On circumferential surface, locating ring 7 is fixed on by screw 8 on insulating layer revealed section 1-4, and the screw cap end of screw 8 is against on locating ring 7, spiral shell
The end of thread of silk 8 is screwed into insulating layer revealed section 1-4, and the front end surface of stress cone 3 is contacted with locating ring 7, and connection gold utensil 5 can
Outlet extreme direction movement of the locating ring 7 towards insulating sleeve 2 is limited, the mode that locating ring 7 is contacted with connection gold utensil 5 specifically may be used
For：The peripheral surface of locating ring 7 is contacted with the inner wall of connection gold utensil 5, and the contact surface of locating ring 7 and connection gold utensil 5 is the conical surface, the conical surface
Big end contacted with connection gold utensil 5 close to one end end face of stress cone 3 or locating ring 7 far from stress cone 3.
The material of locating ring 7 is aluminium alloy.
As shown in Fig. 2, being provided with protrusion 9 outside the insulating outer protective cover 1-1 of cable 1, the rear and front end of protrusion 9 is respectively arranged with
Outer stationary plates 10 and internal fixation plate 11, outer stationary plates 10 and internal fixation plate 11 are clamped in the both sides of protrusion 9 by bolt assembly 12,
Outer stationary plates 10 are fixed on the rear end end of tail pipe 4, and outer stationary plates 10 specifically can be fixed on tail by modes such as gluing or screws
The rear end end of pipe 4, bolt assembly 12 may particularly include stud and two nuts, and stud is each passed through outer stationary plates 10 and interior solid
Fixed board 11, two nuts are tightened on stud, and two nuts are against the outside of outer stationary plates 10 and internal fixation plate 11 respectively, should
Scheme is fixedly clamped in conjunction with internal fixation plate 11 in the protrusion 9 of cable 1 using outer stationary plates 10, to be combined into one with cable 1
Body, and then realize and be relatively fixed outer stationary plates 10 and tail pipe 4, and then avoid cable 1 because of own wt and electrodynamic influence
Occur.
Since cable 1 itself is upper there is no protrusion 9, how in the case of the flames of anger and low temperature on cable 1 at
The protrusion 9 that type provides certain mechanical strength becomes most important, and the scheme provided in the present invention is specific as follows：Protrusion 9 is by soaking
Steeping, which has the glass fiber tape of epoxyn to be wrapped in outside insulating outer protective cover 1-1, forms after solidification, passes through epoxide-resin glue
Stick is combined to form protrusion 9 with glass fiber tape, forms the process flames of anger of protrusion 9, without high temperature, securely and reliably, and environmental protection, it can
The Different high risk sites such as the substation suitable for coal mine, chemical enterprise and high request.
Outer stationary plates 10 and internal fixation plate 11 are annular in shape, and outer stationary plates 10 and internal fixation plate 11 are set in cable 1
Outside insulating outer protective cover 1-1.
As shown in figure 3, being fixed with spring attachment in the arrival end of insulating sleeve 2, spring attachment includes end face
Ring 13 and spring 14, end face ring 13 are located in insulating sleeve 2, and one end of spring 14 is against on end face ring 13, and the other end, which is against, answers
The rear end of power cone 3, end face ring 13 are against on tail pipe 4, and stress cone 3 is pressed on by the spring 14 in the spring attachment of cable 1
On locating ring 7, connection gold utensil 5, which can resist locating ring 7, prevents it from generating displacement to 5 direction of connection gold utensil.
On cable 1 also stripping have aluminium sheath revealed section 1-2, insulation screen revealed section 1-3, insulating layer revealed section 1-4 and
Core revealed section 1-5 is set gradually, and is distributed in staged, wherein end face ring 13 passes through copper braid over braid 15 and aluminium sheath revealed section
1-2 connections, end face ring 13 are sleeved on the outside of insulation screen revealed section 1-3, and the front end of insulation screen revealed section 1-3, which is located at, answers
In power cone 3, locating ring 7 is at the port between insulating layer revealed section 1-4 and core revealed section 1-5.
Locating ring 7 is fixed on using screw 8 on insulating layer revealed section 1-4 in the present embodiment, makes locating ring 7 and cable 1
Insulating layer revealed section 1-4 is combined as a whole, and can be limited to stress cone 3 using 7 one side of locating ring, prevents stress cone 3
Slid into connection gold utensil 5 after being deformed under the long-term pressure of spring attachment, have to stress cone 3 positioning and it is conformal
Effect can prevent the insulating layer of cable 1 from occurring after the insulating layer revealed section 1-4 of another aspect locating ring 7 and cable 1 is fixed
Retraction avoids cable 1 during being powered power-off because generating heat and cooling down the opposite line of insulating layer generated caused by expanding with heat and contract with cold
Core is subjected to displacement, and is kept the accuracy of terminal inner field distribution, to avoid terminal inner from shelf depreciation occur, or even is caused
The phenomenon that breakdown.
Above-mentioned desirable embodiment according to the present invention is enlightenment, and through the above description, relevant staff is complete
Can various changes and amendments be carried out without departing from the scope of the technological thought of the present invention'.This invention it is technical
Range is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.
Claims (7)
1. a kind of high pressure dry insulated power cable device end, including insulating sleeve (2), setting are in insulating sleeve (2)
Stress cone (3), setting insulating sleeve (2) input end tail pipe (4), setting insulating sleeve (2) outlet end connection gold utensil
(5) and connection contact (6) in connection gold utensil (5) is set；
The cable (1) passes through tail pipe (4) and insulating sleeve (2), one section of core revealed section of the front end exposing of the cable (1)
(1-5) is located at the adjacent position of core revealed section (1-5) on cable (1) and exposes one section of insulating layer revealed section (1-4)；
The core revealed section (1-5) is fixed in connection contact (6), and the stress cone (3) is set in the insulating layer of cable (1)
On revealed section (1-4), it is characterised in that：It is provided with locating ring (7), the locating ring in the outlet end of the insulating sleeve (2)
(7) it is fixed on insulating layer revealed section (1-4), the front end surface of the stress cone (3) is contacted with locating ring (7), the connection
Gold utensil (5) can limit outlet extreme direction movement of the locating ring (7) towards insulating sleeve (2).
2. high pressure dry insulated power cable device end according to claim 2, it is characterised in that：The locating ring
(7) it is fixed on insulating layer revealed section (1-4) by screw (8), the screw cap end of the screw (8) is against on locating ring (7), institute
The end of thread for stating screw (8) is screwed into insulating layer revealed section (1-4).
3. high pressure dry insulated power cable device end according to claim 1, it is characterised in that：The locating ring
(7) material is aluminium alloy.
4. high pressure dry insulated power cable device end according to claim 1, it is characterised in that：The cable (1)
Insulating outer protective cover (1-1) outside be provided with raised (9), the rear and front end of the protrusion (9) is respectively arranged with outer stationary plates (10)
With internal fixation plate (11), the outer stationary plates (10) and internal fixation plate (11) are clamped in raised (9) by bolt assembly (12)
Both sides, the outer stationary plates (10) are fixed on the rear end end of tail pipe (4).
5. high pressure dry insulated power cable device end according to claim 4, it is characterised in that：The protrusion (9)
It is formed by being wrapped in after insulating outer protective cover (1-1) solidifies outside immersed with the glass fiber tape of epoxyn.
6. high pressure dry insulated power cable device end according to claim 4, it is characterised in that：The outer stationary plates
(10) and internal fixation plate (11) is annular in shape, and the outer stationary plates (10) and internal fixation plate (11) are set in the exhausted of cable (1)
Edge oversheath (1-1) is outside.
7. high pressure dry insulated power cable device end according to claim 1, it is characterised in that：The insulating sleeve
(2) it is fixed with spring attachment in arrival end, the spring attachment includes end face ring (13) and spring (14), described
End face ring (13) is located in insulating sleeve (2), and one end of the spring (14) is against on end face ring (13), and the other end is against stress
The rear end of (3) is bored, the end face ring (13) is against on tail pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810477576.5A CN108521112B (en) | 2018-05-18 | 2018-05-18 | High-voltage dry-type insulation power cable equipment terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810477576.5A CN108521112B (en) | 2018-05-18 | 2018-05-18 | High-voltage dry-type insulation power cable equipment terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108521112A true CN108521112A (en) | 2018-09-11 |
| CN108521112B CN108521112B (en) | 2019-12-13 |
Family
ID=63427289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810477576.5A Active CN108521112B (en) | 2018-05-18 | 2018-05-18 | High-voltage dry-type insulation power cable equipment terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108521112B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111327013A (en) * | 2018-12-14 | 2020-06-23 | 香港浩岳国际有限公司 | Cable terminal |
| CN115083682A (en) * | 2022-07-13 | 2022-09-20 | 昆山裕莱祥电子科技有限公司 | New forms of energy car of riding instead of walk is with pencil |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2065421T3 (en) * | 1989-03-20 | 1995-02-16 | Alcatel Stk As | CABLE TERMINATION. |
| CN202183581U (en) * | 2011-08-26 | 2012-04-04 | 长园电力技术有限公司 | Cable GIS terminal |
| CN204118674U (en) * | 2014-10-20 | 2015-01-21 | 陈燕 | Prefabricated transformer cable jockey |
| CN207150140U (en) * | 2017-08-04 | 2018-03-27 | 江苏中天科技电缆附件有限公司 | A kind of new no epoxy bushing GIS terminal |
-
2018
- 2018-05-18 CN CN201810477576.5A patent/CN108521112B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2065421T3 (en) * | 1989-03-20 | 1995-02-16 | Alcatel Stk As | CABLE TERMINATION. |
| CN202183581U (en) * | 2011-08-26 | 2012-04-04 | 长园电力技术有限公司 | Cable GIS terminal |
| CN204118674U (en) * | 2014-10-20 | 2015-01-21 | 陈燕 | Prefabricated transformer cable jockey |
| CN207150140U (en) * | 2017-08-04 | 2018-03-27 | 江苏中天科技电缆附件有限公司 | A kind of new no epoxy bushing GIS terminal |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111327013A (en) * | 2018-12-14 | 2020-06-23 | 香港浩岳国际有限公司 | Cable terminal |
| CN111327013B (en) * | 2018-12-14 | 2021-06-04 | 香港浩岳国际有限公司 | Cable terminal |
| CN115083682A (en) * | 2022-07-13 | 2022-09-20 | 昆山裕莱祥电子科技有限公司 | New forms of energy car of riding instead of walk is with pencil |
| CN115083682B (en) * | 2022-07-13 | 2024-02-23 | 昆山裕莱祥电子科技有限公司 | New forms of energy car pencil of riding instead of walk |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108521112B (en) | 2019-12-13 |
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Address after: 213000 No. 128 Dongfang East Road, Changzhou City, Jiangsu Province Patentee after: Xinchengrui (Changzhou) Power Technology Co., Ltd Address before: 213025 No. 128, Dongfang East Road, Changzhou City, Jiangsu Province Patentee before: Changzhou ankaite power device Co., Ltd |
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