CN2519513Y - Normal temperature shrinkage type power cable intermediate joint - Google Patents
Normal temperature shrinkage type power cable intermediate joint Download PDFInfo
- Publication number
- CN2519513Y CN2519513Y CN 01256844 CN01256844U CN2519513Y CN 2519513 Y CN2519513 Y CN 2519513Y CN 01256844 CN01256844 CN 01256844 CN 01256844 U CN01256844 U CN 01256844U CN 2519513 Y CN2519513 Y CN 2519513Y
- Authority
- CN
- China
- Prior art keywords
- normal temperature
- power cable
- type power
- utility
- model
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Cable Accessories (AREA)
Abstract
The utility model relates to a 6-15KV normal temperature shrinkage electric power cable central connect which comprises a central connecting tube, a waterproof insulation tape and a tough bard belt made of glass fiber fabric reinforcing material. The central connecting tube is compounded into a whole by a semi-conductive outer layer, a main insulation layer, a stress tube, an inner layer central semi-conductive layer. The cable is arranged in the product formed by normal temperature pre-and bracing shape-preservation of the central connecting tube, after the support is extracted, the product can shrink in normal temperature and is connected between the two cables in a sealed state. The utility model has excellent electrical performance, mechanical performance, the performance of controlling the distribution of electric stress and etc. The utility model has high flexible memory function; after the installation, the interface among the cables has no air gap, so that sealed state can be kept for a long term and the long and safe operation of the electric power cable can be met. The utility model can replace the central connects of various prior cables.
Description
Technical field:
The utility model relates to the coupling between a kind of cable and the cable, particularly relates to the normal temperature shrinkage type power cable transition joint that is used for the 6-15KV electric pressure.
Background technology:
Existing cable intermediate joint has many unsurmountable shortcomings, has a strong impact on the security reliability of operation of power networks.Casting type and the construction of wrapped type are inconvenient, to installation personnel specification requirement height, installation environment are required harshness, and installation quality is not easy to guarantee.Prefabrication type is strict to cable dimension, and the scope of application is narrow, and difficulty is installed.At present, the transition joint of more employing thermal shrinkage type, it has unvanquishable shortcoming, at first be that sealing is poor, because of it can not be that cold and hot variation synchronous changes along with the variation of cable load, so just may form air gap between the interface of joint and cable, cause partial discharge easily, puncture causes the accident.In addition, the installation of pyrocondensation cable intermediate joint be unable to do without burning things which may cause a fire disaster, thereby, can not use in inflammable and explosive place, limit its range of application.
The utility model content:
The purpose of this utility model is at existing casting type and wrapped type construction inconvenience, to the environmental requirement harshness, installation quality is difficult for guaranteeing, the prefabrication type scope of application is narrow, and the thermal shrinkage type sealing is relatively poor, and to provide a kind of normal temperature shrinkage type power cable transition joint of the 6-15KV of being used for electric pressure with the defective of burning things which may cause a fire disaster.
The purpose of this utility model is achieved in that
The technical solution of the utility model, it comprises intermediate connection tube, waterproof insulating layer, armor layer, it is characterized in that intermediate connection tube is the stress tube that closely is combined into one of the inner surface two ends of the main insulating layer that closely is combined into one by the semiconductive skin, with the outer field inner surface of semiconductive and main insulating layer and constitutes with central semi-conductive layer that the inner surface central authorities of main insulating layer closely are combined into one.
Above-mentioned intermediate connection tube is expanded through normal temperature, utilizes the stay pipe of the plastic shaped roll coil of strip coiled of obdurability to support conformal.
The waterproof insulating layer of the above-mentioned outer surface that places intermediate connection tube is to be made of the wrapped waterproof insulation tape of half lap in accordance with regulations.
Armor layer on the above-mentioned outer surface that places waterproof insulating layer is to be made of the wrapped Woven glass cloth reinforcing material armor band of half lap in accordance with regulations.
The transition joint of normal temperature shrinkage type power cable has very easy to use, supports the conformal product because it is a predilation, during installation, as long as program is taken out the liner stay pipe that is made of support belt in accordance with regulations, just can pack tightly cable.Do not need burning things which may cause a fire disaster to install, be applicable under any environment place and use.Simultaneously, it has " high resiliency memory function ", and therefore, it is fitted closely with cable all the time during use, can not produce air gap, makes the cable operation more safe and reliable.
Description of drawings:
Fig. 1 is the structural representation of normal temperature shrinkage type power cable transition joint.
Fig. 2 is a normal temperature shrinkage type power cable intermediate connection tube structural representation.
Fig. 3 is that normal temperature shrinkage type power cable intermediate connection tube machinery predilation supports the conformal structure schematic diagram.
Wherein: 7 is the stay pipe of the plastic shaped roll coil of strip coiled of obdurability, and 10 is the plastic shaped band of obdurability.
Embodiment:
Below in conjunction with accompanying drawing, technical theme content of the present utility model is described further with embodiment:
Embodiment 1:
As shown in Figure 1, the transition joint of the utility model normal temperature shrinkage type power cable, be to constitute by critical piece normal temperature shrinkage type power cable intermediate connection tube, waterproof insulating layer, armor layer, intermediate connection tube also with the stay pipe 8 of the plastic shaped roll coil of strip coiled of obdurability, places conformal (seeing accompanying drawing 2) in it through mechanical predilation.During construction, mainly cable 7 is packed in the normal temperature shrinkage type power cable intermediate connection tube of predilation conformal, till pulling out that obdurability is plastic shaped and being with 10 all to take out to this stay pipe 8, intermediate connection tube just is contracted to and packs tightly cable 7, reaching the interface does not have air gap, is in sealing state.Subsequently; on the outer surface that is connected in two intermediate connection tubes between the cable; the wrapped waterproof insulation tape layer 6 of half lap in accordance with regulations; at last; again in the outside of wrapped good waterproof insulation tape layer 6; the tough and tensile armor layer (seeing accompanying drawing 1) made of the wrapped Woven glass cloth reinforcing material of half lap again, its purpose is to recover the power cable outer jacket, and makes transition joint bear certain pulling force, pressure, transition joint is shielded.
Claims (4)
1, normal temperature shrinkage type power cable transition joint, it comprises intermediate connection tube, waterproof insulating layer, armor layer, it is characterized in that intermediate connection tube is the stress tube (5,9) that closely is combined into one of the inner surface two ends of the main insulating layer (2) that closely is combined into one by semiconductive skin (4) with the inner surface of semiconductive skin (4) and main insulating layer (2) and constitutes with central semi-conductive layer (3) that the inner surface central authorities of main insulating layer (2) closely are combined into one.
2, normal temperature shrinkage type power cable according to claim 1 transition joint is characterized in that described intermediate connection tube through the normal temperature predilation, and the stay pipe 8 of packing into and being made of support belt.
3, normal temperature shrinkage type power cable according to claim 1 transition joint, the waterproof insulating layer (6) that it is characterized in that the outer surface of described intermediate connection tube is made of the wrapped waterproof insulation tape of half lap in accordance with regulations.
4, normal temperature shrinkage type power cable according to claim 1 transition joint is characterized in that the described armor layer (1) that is positioned at the outer surface of waterproof insulating layer (6), is made of the wrapped robustness armor of half lap band in accordance with regulations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01256844 CN2519513Y (en) | 2001-12-10 | 2001-12-10 | Normal temperature shrinkage type power cable intermediate joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01256844 CN2519513Y (en) | 2001-12-10 | 2001-12-10 | Normal temperature shrinkage type power cable intermediate joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2519513Y true CN2519513Y (en) | 2002-10-30 |
Family
ID=33665717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01256844 Expired - Fee Related CN2519513Y (en) | 2001-12-10 | 2001-12-10 | Normal temperature shrinkage type power cable intermediate joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2519513Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201622A (en) * | 2014-09-11 | 2014-12-10 | 江苏安靠智能输电工程科技股份有限公司 | Prefabricated power cable intermediate joint mounting device and method |
-
2001
- 2001-12-10 CN CN 01256844 patent/CN2519513Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201622A (en) * | 2014-09-11 | 2014-12-10 | 江苏安靠智能输电工程科技股份有限公司 | Prefabricated power cable intermediate joint mounting device and method |
| CN104201622B (en) * | 2014-09-11 | 2017-09-01 | 江苏安靠智能输电工程科技股份有限公司 | A kind of prefabricated class intermediate joint of electric cable erecting device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105552791A (en) | Method for making 10KV heat-shrinkable three-core cross-linked polyethylene cable intermediate joint | |
| CN211376289U (en) | Medium-voltage power cable for rail transit | |
| CN209001229U (en) | Mechanical arm water-proof cable | |
| CN204761736U (en) | Carbon fiber electric heating cable high voltage insulation connects | |
| CN2519513Y (en) | Normal temperature shrinkage type power cable intermediate joint | |
| CN202259729U (en) | Cable joint | |
| CN201985018U (en) | Insulating sheath specially designed for high-tension switch tank body | |
| CN212611973U (en) | Fire-resistant stay cable | |
| CN211089101U (en) | High-temperature-resistant flexible fireproof cable intermediate joint | |
| CN110768201A (en) | Explosion-proof box for cable intermediate head | |
| CN214626323U (en) | Digital comprehensive protection device for high-voltage cable connector | |
| CN215343867U (en) | Flexible cable explosion-proof box | |
| CN203151061U (en) | Multi-core cable intermediate head | |
| CN206991828U (en) | A kind of heat-resisting copper-clad aluminium cable | |
| CN209183863U (en) | Mechanical arm anticreep cable | |
| CN219678078U (en) | Flame-retardant heat-insulating structure for light-weight electric wire and cable | |
| CN209168800U (en) | A kind of electric vehicle fire prevention battery connecting line | |
| CN208014396U (en) | A kind of mineral insulation shell-less flexible flame-retardant cable | |
| CN221352423U (en) | High-low temperature resistant polypropylene insulation signal cable | |
| CN207504549U (en) | A kind of three core transition joint of novel cable shrinkage | |
| CN2264351Y (en) | Electrical heating flexible cord device for melting ice | |
| CN201994094U (en) | Waterproof high-temperature-resistant coaxial cable | |
| CN213125557U (en) | Fire protection device for medium-voltage cable connector | |
| CN210904740U (en) | Explosion-proof fire extinguishing device for cable intermediate joint | |
| CN202996397U (en) | Cross-linked polyethylene insulated polyvinyl chloride sheath integrated branch cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |