CN202840456U - Cross interconnection box used in single-core power cable - Google Patents
Cross interconnection box used in single-core power cable Download PDFInfo
- Publication number
- CN202840456U CN202840456U CN 201220515507 CN201220515507U CN202840456U CN 202840456 U CN202840456 U CN 202840456U CN 201220515507 CN201220515507 CN 201220515507 CN 201220515507 U CN201220515507 U CN 201220515507U CN 202840456 U CN202840456 U CN 202840456U
- Authority
- CN
- China
- Prior art keywords
- outer conductor
- cover
- casing
- core power
- inner wire
- 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 - Lifetime
Links
Images
Landscapes
- Cable Accessories (AREA)
Abstract
The utility model discloses a cross interconnection box used in a single-core power cable. An inner conductor sleeve and an outer conductor sleeve are fixedly arranged in a box body and respectively provided with three connecting ends. Each phase adopts a coaxial-cable and is connected with the inner conductor sleeve and the outer conductor sleeve of the same service entrance. The inner conductor sleeve and the outer conductor sleeve are connected outside a pouring body in a crossed mode in pairs. cross interconnection box used in the single-core power cable is provided with three protectors, wherein the front end of each protector is connected with mutually communicated the inner conductor sleeve and the outer conductor sleeve, and the rear end of the protector is connected with a floor. The cross interconnection box used in the single-core power cable is convenient to install, and has good sealing performance.
Description
Technical field
The utility model relates to a kind of cross interconnection box used in single-core power cable, is used for the cross interconnected of high pressure single-core power cables metallic sheath.
Background technology
Along with the develop rapidly of Chinese national economy, electricity needs is constantly soaring.The construction development of high-power electric transmission network is very rapid, and the high pressure single-core power cables uses very generally.Cross interconnected case is used for connecting the coaxial cable of power cable metal sheath by sheath protector ground connection; be grounded protection; thereby the induced voltage of control power cable metal sheath; reduce or eliminate the ring current on the sheath; improve the transmission capacity of cable; prevent that protective coverings of cable from puncturing, and guarantees cable running safety.At present, the cross interconnected case on the market, volume is all larger, and weight is heavier; Water resistance does not reach the requirement of prevention waterlogging; Incoming line structure generally adopts the bolt compression joint type, and the inlet wire port sealing adopts the modes such as wrapped band, and does not separate sheath protector end and end of incoming cables, and waterproof and dampproof Performance Ratio is relatively poor, installs more numerous and diverse; Casing adopts the modes such as Plate Welding, does not reach the requirement of waterproof and insulation.During installation, case lid must be opened and could connect earth connection, so poor sealing performance is installed very trouble.
Therefore, be necessary to design a kind of cross interconnection box used in single-core power cable.
The utility model content
Technical problem to be solved in the utility model provides a kind of cross interconnection box used in single-core power cable, and this cross interconnection box used in single-core power cable is easy for installation, and has good sealing property.
The technical solution of utility model is as follows:
A kind of cross interconnection box used in single-core power cable comprises casing, ground plate and the three cover ground connection assemblies that are used for docking with three coaxial cables; Ground plate and three cover ground connection assemblies all are positioned at casing; Casing is provided with three connectivity ports for connecting coaxial cable;
Every suit grounding assembly comprises inner conductor component, inner wire cover, outer conductor assembly, outer conductor cover, protector and connecting plate; Inner conductor component is connected with the outer conductor assembly with the inner wire of coaxial cable and is connected with outer conductor, and inner conductor component also contacts by conducting strip with the outer conductor cover with the inner wire cover respectively with the outer conductor assembly; Inner wire cover after the front end of three protectors is interconnected with three respectively, outer conductor cover link to each other, and the rear end of three protectors all is connected with ground plate;
Three inner wire covers are cross interconnected by three braces with three outer conductor covers;
Inner wire cover and outer conductor cover are cast in that integral body of formation is positioned at casing in the insulating material.
Place, connectivity port at casing is provided with three port sealing covers; Article three, coaxial cable passes the casing of going forward side by side from three port sealing covers respectively.
Beneficial effect:
Cross interconnection box used in single-core power cable of the present utility model, in casing, be installed with each three connectivity port of inner and outer conductor cover, each adopts coaxial cable to be connected with the inner and outer conductor cover of same incoming line mutually, and inner and outer conductor is enclosed within pour mass in twos interconnection outward; Inner wire cover, outer conductor cover behind the front end of protector and corresponding phase interconnected join, and the rear end of protector is connected on the ground plate.This cross interconnection box used in single-core power cable is easy for installation, and has good sealing property.
This cross interconnection box used in single-core power cable is cast in inside and outside conductive sleeve in the casing by insulating material, and inside and outside conductive sleeve is interconnected in the pour mass external chiasma, has that good waterproof performance, volume are little, lightweight, good insulation preformance, test be convenient and swift; Sheath protector adopts ZnO varistor protection component and insulating material to be composited, and has good voltage-current characteristic and sealing property; The inlet wire cable adopts inner and outer conductor assembly mechanical connection inlet wire cable and inside and outside conductive sleeve plug syndeton, and it is with bolts that inside and outside conductive sleeve passes through cross board, has easily characteristics of quick and easy for installation, test operation; The port sealing cover has the characteristics such as coaxial cable of ageing-resistant, waterproof and dampproof, safe and reliable, easy for installation, applicable different cross section.Inside and outside conductive sleeve coats with insulating material, and end of incoming cables, interconnected, sheath protector are separated, and the water resistance of fine raising product can effectively reduce small product size and weight, makes installation, maintenance become very convenient, fast.The used inlet wire cable of this structure adopts coaxial earth cable.The utility model is mainly used in the cross interconnected of high pressure single-core power cables metallic sheath, the rising of restriction sheath and insulating joint insulating segment both sides surge voltage, the induced voltage of control metallic sheath, reduce or eliminate ring current on the sheath, improve the transmission capacity of cable, prevent that protective coverings of cable from puncturing, and guarantees cable running safety.
Description of drawings
Fig. 1 is the structural representation (main pseudosection) of cross interconnection box used in single-core power cable;
Fig. 2 is the structural representation (top plan view) of cross interconnection box used in single-core power cable;
Fig. 3 is the intraware connection diagram of coaxial cable and cross interconnection box used in single-core power cable.
Label declaration: 1-port sealing cover, 2-outer conductor assembly, 3-outer conductor cover, 4-connecting plate, 5-inner wire connector, 6-inner wire cover, 7-protector, 8-ground plate, 9-insulating material, 10-casing; The 11-outer conductor, 12-soket head cap screw, 13-outer conductor connect-disconnect plug, 14-connect-disconnect plug, 15-conducting strip, 16-inlet wire lid, 17-heat-shrink tube, 18-coaxial cable, 19-outer conductor folder.
Embodiment
Below with reference to the drawings and specific embodiments the utility model is described in further details:
Embodiment 1:
As Figure 1-3, a kind of cross interconnection box used in single-core power cable comprises casing, ground plate and the three cover ground connection assemblies that are used for docking with three coaxial cables; Ground plate and three cover ground connection assemblies all are positioned at casing;
Every suit grounding assembly comprises inner conductor component, inner wire cover, outer conductor assembly, outer conductor cover, protector and connecting plate; Inner conductor component is connected with the outer conductor assembly with the inner wire of coaxial cable and is connected with outer conductor, and inner conductor component also overlaps with inner wire cover and outer conductor respectively with the outer conductor assembly and contacts; The front end of three protectors links to each other with three inner wire covers respectively, and the rear end of three protectors all is connected with ground plate;
Three inner wire covers are cross interconnected by three braces with three outer conductor covers;
Inner wire cover and outer conductor cover are cast in that integral body of formation is positioned at casing in the insulating material.
Front end at casing is provided with three port sealing covers; Article three, coaxial cable passes the casing of going forward side by side from three port sealing covers respectively.
Specifically, the outer conductor assembly comprises outer conductor connect-disconnect plug, outer conductor folder and is connected connecting the soket head cap screw of outer conductor folder; The outer conductor folder is connected to the outer conductor connect-disconnect plug to coaxial cable outer conductor, is connected with the outer conductor conductive sleeve by the outer conductor connect-disconnect plug again.Inner conductor component comprises connect-disconnect plug and conducting strip.
Inner wire and outer conductor are the conductors of coaxial cable.
Protector is the ZnO varistor guard member
Inner wire cover, six ports of outer conductor cover all are arranged in the insulating material of being poured into a mould, and casing adopts aluminum alloy casing.
Inner wire, outer conductor assembly adopt plug to be connected with inner wire cover, outer conductor cover; be set with the port sealing cover at coaxial cable; inner wire in the casing puts sheath protector (being protector) is installed; sheath protector is the ZnO varistor protection component; have good voltage-current characteristic, ZnO is mainly used in various transient overvoltages, the absorbing surge energy that may occur in perception, the limiting circuit.Insulating material is cast in the inner and outer conductor cover in the casing, has the characteristics such as good waterproof performance, volume are little, lightweight, good insulation preformance.
The port sealing cover, have the applicable different cross section of ageing-resistant, waterproof and dampproof, safe and reliable, easy for installation, applicable multiple ground connection coaxial cable, be convenient to the characteristics such as the acceptance of work.Inner and outer conductor is applied mechanically insulating material and is coated, and end of incoming cables and sheath protector are separated, and improves the water resistance of product; Earth cable and inner conductor component adopt mechanical crimping mode, the machinery crimping is the plastic deformation that pressured stress produces, make earth cable conductor and the inner conductor component non-dismountable joint that is formed by connecting, the inner and outer conductor assembly is applied mechanically plug with inner and outer conductor and is connected, and makes installation, maintenance become very convenient, fast.The cross interconnection box used in single-core power cable of present embodiment is very suitable for the installation environment that work high above the ground is used and the space is little and uses.
Claims (2)
1. a cross interconnection box used in single-core power cable is characterized in that, comprises casing, ground plate and the three cover ground connection assemblies that are used for docking with three coaxial cables; Ground plate and three cover ground connection assemblies all are positioned at casing; Casing is provided with three connectivity ports for connecting coaxial cable;
Every suit grounding assembly comprises inner conductor component, inner wire cover, outer conductor assembly, outer conductor cover, protector and connecting plate; Inner conductor component is connected with the outer conductor assembly with the inner wire of coaxial cable and is connected with outer conductor, and inner conductor component also overlaps with inner wire cover and outer conductor respectively with the outer conductor assembly and contacts; Inner wire cover after the front end of three protectors is interconnected with three respectively, outer conductor cover link to each other, and the rear end of three protectors all is connected with ground plate;
Three inner wire covers are cross interconnected by three braces with three outer conductor covers;
Inner wire cover and outer conductor cover are cast in that integral body of formation is positioned at casing in the insulating material.
2. cross interconnection box used in single-core power cable according to claim 1 is characterized in that, is provided with three port sealing covers at the place, connectivity port of casing; Article three, coaxial cable passes the casing of going forward side by side from three port sealing covers respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220515507 CN202840456U (en) | 2012-09-29 | 2012-09-29 | Cross interconnection box used in single-core power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220515507 CN202840456U (en) | 2012-09-29 | 2012-09-29 | Cross interconnection box used in single-core power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202840456U true CN202840456U (en) | 2013-03-27 |
Family
ID=47952072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220515507 Expired - Lifetime CN202840456U (en) | 2012-09-29 | 2012-09-29 | Cross interconnection box used in single-core power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202840456U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154441A (en) * | 2014-07-31 | 2014-11-19 | 立达信绿色照明股份有限公司 | Adjustable lamp |
| CN110601126A (en) * | 2019-09-17 | 2019-12-20 | 深圳供电局有限公司 | Connecting box for single-core cable inlet wire |
| EP4060842A1 (en) * | 2021-03-17 | 2022-09-21 | Tyco Electronics Raychem GmbH | Sheath-bonding link box |
-
2012
- 2012-09-29 CN CN 201220515507 patent/CN202840456U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154441A (en) * | 2014-07-31 | 2014-11-19 | 立达信绿色照明股份有限公司 | Adjustable lamp |
| CN110601126A (en) * | 2019-09-17 | 2019-12-20 | 深圳供电局有限公司 | Connecting box for single-core cable inlet wire |
| EP4060842A1 (en) * | 2021-03-17 | 2022-09-21 | Tyco Electronics Raychem GmbH | Sheath-bonding link box |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201038515Y (en) | High voltage single-core power cable intersection box | |
| CN202034753U (en) | Cross interconnection box used in single-core power cable | |
| CN202888523U (en) | Whole shielding metal armored cable connecting plug | |
| CN201336195Y (en) | High-voltage power cable sheath protector | |
| CN202840456U (en) | Cross interconnection box used in single-core power cable | |
| CN201975190U (en) | Bridge connection type shifting multi-function arrester | |
| CN203674680U (en) | Sealing anti-flood cross interconnection grounding box | |
| CN203760726U (en) | Single core cable shielding type separable connector | |
| CN201038349Y (en) | High voltage single core power cable grounding device | |
| CN202957567U (en) | Anti-electric-shock intersecting interconnecting protection box | |
| CN203135556U (en) | Emergency power supply assembly | |
| CN202025947U (en) | Shielding component and electric connector plug using the same | |
| CN205335020U (en) | 750kV exchanges arrester | |
| CN201741818U (en) | Seabed power cable onshore section grounding device | |
| CN101645548A (en) | Method for grounding single-core high-voltage cable metal sheath | |
| CN202034498U (en) | Grounding device for single-core power cable | |
| CN206237115U (en) | Buried cable sheath grounding box | |
| CN202110895U (en) | Multifunctional power substation insulator | |
| CN214176791U (en) | Novel grounding protection box | |
| CN201985284U (en) | Low-voltage tapping box cable grounding device | |
| CN201975191U (en) | Lightning arrester with functions of electricity testing and grounding | |
| CN201490354U (en) | Grounding system of metal sheath of single-core high-voltage cable | |
| CN210489849U (en) | Power electronic equipment earthing device | |
| CN202712553U (en) | Shielded type switch cabinet upper outgoing bus connector | |
| CN201038699Y (en) | High voltage single core power cable grounding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |
|
| CX01 | Expiry of patent term |