CN203466546U - Crosslinked cable metal sheath grounding mixed box - Google Patents
Crosslinked cable metal sheath grounding mixed box Download PDFInfo
- Publication number
- CN203466546U CN203466546U CN201320540875.1U CN201320540875U CN203466546U CN 203466546 U CN203466546 U CN 203466546U CN 201320540875 U CN201320540875 U CN 201320540875U CN 203466546 U CN203466546 U CN 203466546U
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- China
- Prior art keywords
- grounding
- cable
- copper bar
- box
- sheath
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Abstract
The utility model discloses a crosslinked cable metal sheath grounding mixed box. The box comprises a seal box body which is provided with a three-phase wire inlet and a grounding wiring terminal, three outer wire clamps which are connected with cable outer core insulation joints, three sheath protectors and three inner wire clamps which are connected with cable inner core insulation joints, wherein three outer wire clamps are respectively connected with the grounding wiring terminal through three sheath protectors, and three inner wire clamps are connected with the grounding wiring terminal. According to the utility model, the crosslinked cable metal sheath grounding mixed box is suitable for crosslinked cable metal sheath grounding in cable transmission lines of the voltage grades of 220kV and below; the electrical function meets the use requirement that a direct grounding box and a protective grounding box are combined into a whole body; two box bodies are replaced by a box body; the crosslinked cable metal sheath grounding mixed box has the advantages of small overall size, less occupied space, convenient installation and convenient maintenance and repair; a coaxial cable can be used for connection; the coaxial cable can be used to replace two grounding cables; the number of cables is reduced; the occupied space is reduced; and the installation and the maintenance are convenient.
Description
Technical field
The utility model relates to the grounding technology of crosslinked cable, is specially a kind of crosslinked electric cable having metal mixing grounding box.
Background technology
Process now the mode that insulating joint one end is direct, one end protective earthing requires, conventionally adopt two grounding boxes (direct, an a set of protection) to install and realize separately, the whole occupation of land of this implementation is large, and during installation fee, price is high, cost waste.In addition, two modes of using separately can only be used common earth cable, three-phase conllinear, at least need 8 earth cables, high material consumption not only, and cause being covered with cable in narrow and small cable joint well, take up room, affect later maintenance maintenance, and how earth cable quantity easily causes setup error.
Summary of the invention
summary of the invention
For the problems referred to above, the utility model provides a kind of little, easy for installation, Maintenance and Repair crosslinked electric cable having metal mixing easily grounding box that takes up room.
The utility model is that the technical scheme that its technical problem of solution adopts is:
Crosslinked electric cable having metal mixing grounding box, comprising: seal case, and it is provided with three-phase incoming line and ground connection binding post; Be arranged at interior three the outer wire clamps for the outer core insulation joint of stube cable of seal case; Be arranged at three sheath protectors in seal case, three outer wire clamps are connected with ground connection binding post by three sheath protectors respectively; Be arranged at interior three the interior wire clamps for stube cable inner core insulating joint of seal case, three interior wire clamps are connected with ground connection binding post.
Preferably, in described three-phase incoming line, be respectively equipped with incoming seal cover.Arranging of incoming seal cover can guarantee that the sealing of casing is good.
Preferably, described seal case is comprised of uncovered main body and case lid, the uncovered sealing ring that is provided with of uncovered main body, and case lid passes through sealing ring press seal in uncovered main body.This structure makes casing can carry out easily folding maintenance, and can guarantee that the sealing of casing is not destroyed.
Preferably; in described seal case, be provided with insulating base; outer wire clamp and interior wire clamp are installed on insulating base; one end of sheath protector is connected with outer wire clamp by the first copper bar; the other end is connected with interior wire clamp by the second copper bar, and also receive on first grounding copper bar being connected with ground connection binding post one end that all sheath protectors are connected with the second copper bar.Further, described interior wire clamp is by the second grounding copper bar and connect, and the second grounding copper bar is provided with the 3rd grounding copper bar that is connected to the first grounding copper bar.Above-mentionedly arrange simple and compact for structurely, can make the space in casing be effectively utilized.
The beneficial effects of the utility model are: the utility model is suitable for crosslinked electric cable having metal ground connection in 220kV and following electric pressure cable transmission line to be used.On its electric function, meet direct grounding box and the two-in-one instructions for use of protective earthing case, a casing has replaced two casings, and overall dimension is less, takes up room less, easy for installation, and Maintenance and Repair are convenient; Can adopt coaxial cable to connect, a coaxial cable can replace two earth cables to use, and has reduced number of cables, reduces space hold, convenient for installation and maintenance.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, be further detailed:
Fig. 1 is internal structure front view of the present utility model;
Fig. 2 is internal structure end view of the present utility model;
Fig. 3 is electrical schematics of the present utility model;
Fig. 4 is wiring schematic diagram of the present utility model.
Embodiment
Referring to figs. 1 through Fig. 4, grounding box integral body of the present utility model is a seal case 1, and seal case 1 is provided with three-phase incoming line 2 and ground connection binding post 3.1 is provided with respectively the outer wire clamp of corresponding three of threephase cable with three-phase power circuit 4, three interior wire clamps 5 and three sheath protectors 6 in seal case; wherein outer wire clamp 4 is for the outer core insulation joint of stube cable; interior wire clamp 5 is for stube cable inner core insulating joint, as shown in Figure 4.Interior wire clamp 5 is directly connected with ground connection binding post 3, realizes direct grounding function.Outer wire clamp 4 is connected with ground connection binding post 3 by sheath protector 6, realizes protective earthing function.
In order to guarantee the sealing property of seal case 1, the three-phase incoming line 2 of seal case 1 is preferably provided with incoming seal cover, and sealing cover coordinates inlet wire cable to use, and realizes press seal function, and the mode of specific implementation is various, at this, is not repeating.In addition, seal case 1 also decision design is the mode by uncovered main body and case lid combination, so that the parts in case are safeguarded.Certainly, in order to guarantee the sealing of casing, the uncovered upper sealing ring that is preferably provided with of uncovered main body, case lid passes through sealing ring press seal in uncovered main body.
The set-up mode of the inside and outside wire clamp of seal case 1, interior wire clamp and sheath protector is not limit.As preferably; as depicted in figs. 1 and 2; in seal case 1, be provided with insulating base 7; outer wire clamp 4 and interior wire clamp 5 are installed on insulating base 7; one end of sheath protector 6 is connected with outer wire clamp 4 by the first copper bar 8; the other end is connected with interior wire clamp 5 by the second copper bar 9, and also receive on first grounding copper bar 10 being connected with ground connection binding post 3 one end that all sheath protectors 6 are connected with the second copper bar 9.Interior wire clamp 5 is by the second grounding copper bar 11 and connect, and the second grounding copper bar 11 is provided with the 3rd grounding copper bar 12 that is connected to the first grounding copper bar 10.Above-mentionedly arrange simple and compact for structurely, can make the space in casing be effectively utilized.
Execution mode of the present utility model is not restricted to the described embodiments, as long as it reaches technique effect of the present utility model with essentially identical means, all should belong to protection range of the present utility model.
Claims (5)
1. crosslinked electric cable having metal mixing grounding box, is characterized in that comprising:
Seal case, it is provided with three-phase incoming line and ground connection binding post;
Be arranged at interior three the outer wire clamps for the outer core insulation joint of stube cable of seal case;
Be arranged at three sheath protectors in seal case, three outer wire clamps are connected with ground connection binding post by three sheath protectors respectively;
Be arranged at interior three the interior wire clamps for stube cable inner core insulating joint of seal case, three interior wire clamps are connected with ground connection binding post.
2. crosslinked electric cable having metal mixing grounding box according to claim 1, is characterized in that being respectively equipped with incoming seal cover in described three-phase incoming line.
3. crosslinked electric cable having metal mixing grounding box according to claim 1, is characterized in that described seal case is comprised of uncovered main body and case lid, the uncovered sealing ring that is provided with of uncovered main body, and case lid passes through sealing ring press seal in uncovered main body.
4. crosslinked electric cable having metal mixing grounding box according to claim 1; it is characterized in that being provided with insulating base in described seal case; outer wire clamp and interior wire clamp are installed on insulating base; one end of sheath protector is connected with outer wire clamp by the first copper bar; the other end is connected with interior wire clamp by the second copper bar, and also receive on first grounding copper bar being connected with ground connection binding post one end that all sheath protectors are connected with the second copper bar.
5. crosslinked electric cable having metal mixing grounding box according to claim 4, is characterized in that described interior wire clamp by the second grounding copper bar and connects, and the second grounding copper bar is provided with the 3rd grounding copper bar that is connected to the first grounding copper bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320540875.1U CN203466546U (en) | 2013-09-02 | 2013-09-02 | Crosslinked cable metal sheath grounding mixed box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320540875.1U CN203466546U (en) | 2013-09-02 | 2013-09-02 | Crosslinked cable metal sheath grounding mixed box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203466546U true CN203466546U (en) | 2014-03-05 |
Family
ID=50178885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320540875.1U Expired - Lifetime CN203466546U (en) | 2013-09-02 | 2013-09-02 | Crosslinked cable metal sheath grounding mixed box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203466546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104113003A (en) * | 2014-06-18 | 2014-10-22 | 国家电网公司 | Grounding protection mode cable grounding box transfer instrument |
-
2013
- 2013-09-02 CN CN201320540875.1U patent/CN203466546U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104113003A (en) * | 2014-06-18 | 2014-10-22 | 国家电网公司 | Grounding protection mode cable grounding box transfer instrument |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140305 |