CN202034753U - Cross interconnection box used in single-core power cable - Google Patents
Cross interconnection box used in single-core power cable Download PDFInfo
- Publication number
- CN202034753U CN202034753U CN2011200826600U CN201120082660U CN202034753U CN 202034753 U CN202034753 U CN 202034753U CN 2011200826600 U CN2011200826600 U CN 2011200826600U CN 201120082660 U CN201120082660 U CN 201120082660U CN 202034753 U CN202034753 U CN 202034753U
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- core power
- terminal block
- power cables
- type copper
- cross interconnected
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Abstract
The utility model discloses a cross interconnection box used in a single-core power cable, characterized in that a three-phase six-wire grounding port is fixedly arranged in a box body, every two wires of the six-wire grounding port are connected via a connecting plate, and each one-phase grounding port comprises a wiring plate and a seal type copper terminal used for connecting a grounding cable conductor; the front end of the wiring plate is connected with the seal type copper terminal, and the back end is connected on the connecting plate, and the front end of the wiring plate is connected with the seal type copper terminal via a bolt. 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 the cross interconnected case of a kind of single-core power cables, 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.Induced voltage for control power cable metal sheath reduces or eliminates the ring current on the sheath, improves the transmission capacity of cable, prevents that protective coverings of cable from puncturing, and guarantees cable running safety.At present, the cross interconnected case on the market, volume is all bigger, and weight is heavier; Water resistance does not reach the requirement of prevention waterlogging; The inlet wire structure generally adopts the bolt compression joint type, and the inlet wire port sealing adopts modes such as wrapped band, and does not separate sheath protector end and end of incoming cables, and waterproof and dampproof performance is poor, installs more numerous and diverse; Casing adopts modes such as steel plate welding, and there are hidden danger in waterproof and insulation property.During installation, case lid must be opened and could connect earth connection, so poor sealing performance is installed very trouble.
The utility model content
Technical problem to be solved in the utility model is to propose the cross interconnected case of a kind of single-core power cables, and this single-core power cables is easy for installation with cross interconnected case, and has excellent sealing performance.
Technical solution of the present utility model is as follows:
The cross interconnected case of a kind of single-core power cables, in casing, be installed with six line grounding ports, the per two line grounding ports of six line ground connection connect by connecting plate, each line grounding ports all comprises terminal block and is used to connect the sealed type copper tip of earth cable conductor, the front end of terminal block and sealed type copper tip join, and the rear end of terminal block is connected on the connecting plate.
The front end of terminal block is connected by bolt with the sealed type copper tip.
Be set with the pyrocondensation sealed tube on sealed type copper tip and the terminal block.
Described grounding ports is three-phase six line caps.
On connecting plate, also be connected with sheath protector.
Sheath protector is the ZnO varistor guard member.
Three-phase six line caps all are arranged in the insulating material of being poured into a mould, and casing adopts aluminum alloy casing.
Terminal block and connecting plate all are coated with insulating material, and end of incoming cables and sheath protector are separated.
Beneficial effect:
Adopt the cross interconnected case of high pressure single-core power cables of technique scheme, insulating material is cast in terminal block, connecting plate in the casing, has good waterproof performance, little, in light weight, the good insulation preformance of volume; 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 is connected employing sealed type copper tip with terminal block, sealed type copper tip one end crimping inlet wire cable, and the other end links to each other by bolt fastening structure with terminal block, has characteristics quick and easy for installation; Sealed tube is the pyrocondensation insulated tube, has characteristics such as ageing-resistant, waterproof and dampproof, safe and reliable, easy for installation, suitable multiple earth cable.Connecting plate and terminal block coat with insulating material, and end of incoming cables and sheath protector are separated, and the water resistance of fine raising product can effectively reduce small product size and weight, make installation, maintenance become very convenient, fast, need not to open case lid.The used inlet wire cable of this structure adopts three-phase six line earth cables.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
The structural representation (in figure only show 2 grounding ports of a phase in three-phase) of Fig. 1 for implementing;
Label declaration: 1-ground plate, 2-casing, 3-sheath protector, 4-connecting plate, 5-terminal block, 6-insulating material, 7-pyrocondensation insulated tube 8-sealed type copper tip.
Embodiment
Below with reference to the drawings and specific embodiments the utility model is described in further details:
Embodiment 1:
As Fig. 1; terminal block adopts bolt to be connected with sealed type copper tip (DTM); be set with sealed tube at terminal block and sealed type copper tip place; be connected with sheath protector on the connecting plate in the casing; sheath protector is the ZnO varistor protection component; have good voltage-current characteristic, ZnO is mainly used in various transient overvoltages, the absorption surge energy that may occur in perception, the restricting circuits.Insulating material is cast in connecting plate and terminal block in the casing, has characteristics such as good waterproof performance, volume are little, in light weight, good insulation preformance.
Sealed tube is the pyrocondensation insulated tube, and the pyrocondensation insulated tube can shrink again after being heated and return to the original form.Key property is that heat shrink is coated on external surface of objects, effect such as can play insulation, protection against the tide, seal, protect and continue, have ageing-resistant, waterproof and dampproof, safe and reliable, easy for installation, be suitable for multiple earth cable, be convenient to characteristics such as the acceptance of work.Terminal block and connecting plate coat with insulating material, and end of incoming cables and sheath protector are separated, and improve the water resistance of product; Earth cable and sealed type copper tip adopt mechanical crimping mode, the machinery crimping is the plastic deformation that pressured stress produces, make earth cable conductor and the sealed type terminal non-dismountable joint that is formed by connecting, the sealed type copper tip is connected with bolt with terminal block, makes installation, maintenance become very convenient, fast.The cross interconnected case of the single-core power cables 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 (7)
1. cross interconnected case of single-core power cables, it is characterized in that, in casing, be installed with six line grounding ports, the per two line grounding ports of six line ground connection connect by connecting plate, each line grounding ports all comprises terminal block and is used to connect the sealed type copper tip of earth cable conductor, the front end of terminal block and sealed type copper tip join, and the rear end of terminal block is connected on the connecting plate.
2. the cross interconnected case of single-core power cables according to claim 1 is characterized in that the front end of terminal block is connected by bolt with the sealed type copper tip.
3. the cross interconnected case of single-core power cables according to claim 1 is characterized in that, is set with the pyrocondensation sealed tube on sealed type copper tip and the terminal block.
4. the cross interconnected case of single-core power cables according to claim 1 is characterized in that, also is connected with sheath protector on connecting plate.
5. the cross interconnected case of single-core power cables according to claim 4 is characterized in that sheath protector is the ZnO varistor guard member.
6. according to the cross interconnected case of each described single-core power cables of claim 1-5, it is characterized in that three-phase six line caps all are arranged in the insulating material of being poured into a mould, casing adopts aluminum alloy casing.
7. the cross interconnected case of single-core power cables according to claim 6, terminal block and connecting plate all are coated with insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200826600U CN202034753U (en) | 2011-03-25 | 2011-03-25 | Cross interconnection box used in single-core power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200826600U CN202034753U (en) | 2011-03-25 | 2011-03-25 | Cross interconnection box used in single-core power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202034753U true CN202034753U (en) | 2011-11-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200826600U Expired - Lifetime CN202034753U (en) | 2011-03-25 | 2011-03-25 | Cross interconnection box used in single-core power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202034753U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762530A (en) * | 2014-02-20 | 2014-04-30 | 宁波甬城配电网建设有限公司 | Cable sheath |
| CN103983853A (en) * | 2014-05-09 | 2014-08-13 | 国家电网公司 | Phase position check method of high voltage cable frogging interconnected system |
| CN104062502A (en) * | 2014-06-20 | 2014-09-24 | 国家电网公司 | Phase examination method of high-voltage cable intersecting interconnection system |
| CN106911087A (en) * | 2017-03-30 | 2017-06-30 | 宁波市鄞州电力设备制造厂有限公司 | A kind of GCS low-tension switch cabinets |
| CN111146667A (en) * | 2020-02-13 | 2020-05-12 | 羽源洋(宁波)科技有限公司 | Sealed anti-drop single core wire butt joint manipulator |
-
2011
- 2011-03-25 CN CN2011200826600U patent/CN202034753U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762530A (en) * | 2014-02-20 | 2014-04-30 | 宁波甬城配电网建设有限公司 | Cable sheath |
| CN103762530B (en) * | 2014-02-20 | 2016-04-13 | 宁波甬城配电网建设有限公司 | A kind of cable cover(ing) |
| CN103983853A (en) * | 2014-05-09 | 2014-08-13 | 国家电网公司 | Phase position check method of high voltage cable frogging interconnected system |
| CN104062502A (en) * | 2014-06-20 | 2014-09-24 | 国家电网公司 | Phase examination method of high-voltage cable intersecting interconnection system |
| CN106911087A (en) * | 2017-03-30 | 2017-06-30 | 宁波市鄞州电力设备制造厂有限公司 | A kind of GCS low-tension switch cabinets |
| CN111146667A (en) * | 2020-02-13 | 2020-05-12 | 羽源洋(宁波)科技有限公司 | Sealed anti-drop single core wire butt joint manipulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHANGLAN ELECTRICAL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: CHANGSHA CABLE ACCESSORY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 410205 Hunan province Changsha City Lugu high tech Industrial Park District Tongzi Po Road No. 223 Patentee after: Changlan Cable Accessories Co., Ltd. Address before: 410205 Hunan province Changsha City Lugu high tech Industrial Park District Tongzi Po Road No. 223 Patentee before: Changsha Cable Accessory CO., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111109 |