CN102055164A - Internal insulation tube for internal stress liner of middle joint of 10-35 KV high-voltage cable - Google Patents
Internal insulation tube for internal stress liner of middle joint of 10-35 KV high-voltage cable Download PDFInfo
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- CN102055164A CN102055164A CN201010538979XA CN201010538979A CN102055164A CN 102055164 A CN102055164 A CN 102055164A CN 201010538979X A CN201010538979X A CN 201010538979XA CN 201010538979 A CN201010538979 A CN 201010538979A CN 102055164 A CN102055164 A CN 102055164A
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- internal stress
- internal
- middle joint
- voltage cable
- insulation tube
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Abstract
The invention discloses an internal insulation tube for an internal stress liner of a middle joint of a 10-35 KV high-voltage cable. Reinforcing ribs are arranged in a liner tube, and the middle part out of the liner tube is provided with a reinforcing boss structure, so the internal insulation tube for the internal stress liner of the middle joint of the 10-35 KV high-voltage cable is convenient, easy, safe and reliable. When an external thermal-shrinking protection sleeve of the middle joint of the cable is finally sleeved in the internal insulation tube of the internal stress liner of the middle joint of the high-voltage cable and is subjected to thermal shrinkage, the external thermal-shrinking protection sleeve is flat and smooth without bumps; and the seal is compact without collapse.
Description
Technical field the present invention relates to electrical power wiring, directly relates to insulated tube in the 10-35KV high-tension cable transition joint internal stress lining, is specially adapted to make the high-tension cable transition joint and uses.
Background technology is in the city; the rural area; when special occasions adopts high-tension overhead line to be restricted; must use the high-tension cable buried-pipe laying; it is simple relatively to use the high-tension cable buried-pipe laying to install; floor space is few; do not influence series of advantages such as the city is attractive in appearance; now obtain people extensively adopts always; in long-term the use; though people also find existing employing high-tension cable buried-pipe laying easy construction; floor space is few; and do not influence series of advantages such as the city is attractive in appearance and also have a great fatal drawback outward: high-tension cable buried-pipe laying route is not clear; in the construction and upgrading construction of particularly current villages within the city, because building; the removal of marker causes original high-tension cable buried-pipe laying marker to cause displacement or loss; even more serious is: when in the back construction; often also have in not clear underground having or not under the high-tension cable situation, very easily can dig broken belt electricity high pressure cable during excavation mechinery excavation ground, cause large-area power-cuts; for restoring electricity as early as possible, at this moment also must organize the relevant personnel to rush to repair.Cable digs disconnected; must carry out transition joint handles; when transition joint is handled; promptly can run into the connection of two cable heads; the conventional connection method of cable head just is to use the clamper tube that equates with cable cross-sectional area; one cable head inserts half degree of depth in the clamper tube; another cable head inserts in the clamper tube and implements crimping after half degree of depth; when coupling compression joint finishes; also to carry out interior insulation processing; interior insulation processing finishes and also will carry out oversheath pyrocondensation encapsulation process at last, and comparatively serious stealthy fault point appears in regular meeting during through the oversheath after the pyrocondensation encapsulation process: whole thickness inequality; convex-concave is uneven everywhere; it is not straight to bend.Because thickness inequality, convex-concave are uneven everywhere, that two oversheaths overlap joint mouthful easily can occur sealing is unreal, easily advance moisture, the generation of other unpredictable dangerous accident very easily can occur.
Summary of the invention purpose of the present invention will provide insulated tube in a kind of 10-35KV high-tension cable transition joint internal stress lining exactly; it can overcome effectively: when coupling compression joint finishes; also to carry out interior insulation processing; interior insulation processing finishes and also will carry out oversheath pyrocondensation encapsulation process at last; comparatively serious stealthy fault point appears in regular meeting during through the oversheath after the pyrocondensation encapsulation process: whole thickness inequality; convex-concave is uneven everywhere; it is not straight to bend; because thickness inequality; convex-concave is uneven everywhere; two oversheaths overlap joint mouth easily can occur sealing unreal; easily advance moisture, the serious drawback of the generation of other unpredictable dangerous accident very easily can occur.
The object of the present invention is achieved like this: insulated tube in the 10-35KV high-tension cable transition joint internal stress lining, have lining pipe and fore shaft cover, and in the described lining pipe reinforcement is set.
As further scheme of the present invention be: the outer middle part of described lining pipe is provided with the reinforcement boss.
As another kind of scheme of the present invention be: described fore shaft overlaps an end discount is set, and the other end is provided with the rectangle buttonhole.
The present invention is owing to adopted and overlap an end at fore shaft discount is set, and the other end is provided with the rectangle buttonhole, when making things convenient for fore shaft during the insulated tube enclosure and cable joint external insulation casing pipe outside in the 10-35KV high-tension cable transition joint internal stress lining.
The present invention is provided with reinforcement owing to having adopted again in lining pipe, the outer middle part of lining pipe is provided with the structure of strengthening boss, thereby it is make the interior insulated tube of 10-35KV high-tension cable transition joint internal stress lining become very convenient and easy, and fool proof again and reliable.Smooth smooth no convex-concave after the insulated tube pyrocondensation is sealed closely knit nothing and is subsided in pyrocondensation sheath outside the cable intermediate joint is inserted in high-tension cable transition joint internal stress lining at last.
Comparatively serious stealthy fault point appears in regular meeting when using the present invention to solve through the oversheath after the pyrocondensation encapsulation process fully: whole thickness inequality, convex-concave be uneven everywhere, it is not straight to bend.Because thickness inequality, convex-concave are uneven everywhere, that two oversheaths overlap joint mouthful easily can occur sealing is unreal, easily advance moisture, the serious drawback of the generation of other unpredictable dangerous accident very easily can occur.
Appended drawings 1 is an insulated tube in the 10-35KV high-tension cable transition joint internal stress lining of the present invention, accompanying drawing 2 is schematic diagrames after the insulated tube pyrocondensation in the 10-35KV high-tension cable transition joint internal stress lining, accompanying drawing 3 is fore shaft cover schematic diagrames, below in conjunction with accompanying drawing this present invention is further described.
The embodiment accompanying drawing shows structure of the present invention, in accompanying drawing 1 lining pipe 1 reinforcement 2 is set, and lining pipe 1 outer middle part is provided with strengthens boss 3, and accompanying drawing 3 fore shafts overlap 4 one ends discount 5 is set, and the other end is provided with rectangle buttonhole 6.
Installation process of the present invention is: at first two of accompanying drawing 1 lining pipes 1 (another piece does not indicate) are closed the outside of buckleing the cable intermediate joint external insulation pipe 7 that has disposed with Fig. 2, with accompanying drawing 3 fore shafts cover 4 two ends of being inserted in accompanying drawing 2 lining pipes 1, then discount 5 being inserted the locking of rectangle buttonholes 6 reflexeds, heats and can finish installation after the pyrocondensation in the outside of again oversheath 8 being inserted in lining pipe 1 at last.
Claims (3)
1.10-35KV insulated tube in the high-tension cable transition joint internal stress lining has lining pipe (1) and fore shaft cover (4), it is characterized in that: reinforcement (2) is set in the described lining pipe (1).
2. insulated tube in the 10-35KV high-tension cable transition joint internal stress lining according to claim 1 is characterized in that: the outer middle part of described lining pipe (1) is provided with strengthens boss (3).
3. insulated tube in the 10-35KV high-tension cable transition joint internal stress lining according to claim 1 and 2, it is characterized in that: described fore shaft cover (4) one ends are provided with discount (5), and the other end is provided with rectangle buttonhole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010538979XA CN102055164A (en) | 2010-11-10 | 2010-11-10 | Internal insulation tube for internal stress liner of middle joint of 10-35 KV high-voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010538979XA CN102055164A (en) | 2010-11-10 | 2010-11-10 | Internal insulation tube for internal stress liner of middle joint of 10-35 KV high-voltage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102055164A true CN102055164A (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010538979XA Pending CN102055164A (en) | 2010-11-10 | 2010-11-10 | Internal insulation tube for internal stress liner of middle joint of 10-35 KV high-voltage cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102055164A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489546A (en) * | 2013-09-23 | 2014-01-01 | 许继集团有限公司 | Insulation tube for optical fiber insulator and manufacturing method thereof and optical fiber insulator |
| CN106229903A (en) * | 2016-08-16 | 2016-12-14 | 许继集团有限公司 | A kind of manufacture method of cable transition joint |
-
2010
- 2010-11-10 CN CN201010538979XA patent/CN102055164A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489546A (en) * | 2013-09-23 | 2014-01-01 | 许继集团有限公司 | Insulation tube for optical fiber insulator and manufacturing method thereof and optical fiber insulator |
| CN106229903A (en) * | 2016-08-16 | 2016-12-14 | 许继集团有限公司 | A kind of manufacture method of cable transition joint |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110511 |