CN213521248U - Convenient type high voltage power cable sheath grounding box - Google Patents
Convenient type high voltage power cable sheath grounding box Download PDFInfo
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- CN213521248U CN213521248U CN202022495808.5U CN202022495808U CN213521248U CN 213521248 U CN213521248 U CN 213521248U CN 202022495808 U CN202022495808 U CN 202022495808U CN 213521248 U CN213521248 U CN 213521248U
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Abstract
The utility model discloses a convenient type high voltage power cable sheath ground connection case, including ground connection case main part, three-phase sheath earth connection, earth cable, external through-hole and insulation system. The grounding box comprises a grounding box body, a three-phase sheath grounding wire, external through holes, an insulating structure and a grounding box body, wherein the external through holes are arranged on the outer surface of the grounding box body, the number of the external through holes corresponds to the total number of cables of the three-phase sheath grounding wire and the grounding cable, one end of the grounding cable is electrically connected with one end of the three-phase sheath grounding wire and is located in the grounding box body, the other end of the grounding cable and the other end of the three-phase sheath grounding wire are provided with external connectors, and the. The utility model discloses make operating personnel only need carry out the live working detection to external part, and need not dismouting grounding box, promoted the convenience of live working detection. The grounding box is not opened when in detection, so that the self anti-environmental interference capability is ensured.
Description
Technical Field
The utility model relates to a cable grounding box technical field, in particular to convenient type high voltage power cable sheath grounding box.
Background
In recent years, the cable formation rate in urban areas has been gradually increased. High voltage cable plant applications are very widespread. In order to ensure the safe and reliable operation of the high-voltage cable, cable operation and maintenance personnel need to perform various detections on the cable to acquire the operating state quantity of each cable of the cable. Usually, most detection sites are located in the sheath grounding box at the external joint of the high-voltage cable. Therefore, when the operator carries out electrified detection, the cable box needs to be opened, and then the cable in the grounding box is detected. Above-mentioned process needs dismouting ground connection case, and is comparatively loaded down with trivial details. Moreover, the grounding box is opened to easily destroy the performances of the grounding box, such as water resistance, dust resistance and the like, and the influence of the environment on the grounding box is increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the utility model provides a convenient type high voltage power cable sheath grounding box promotes grounding box detection achievement's convenience and the anti environmental disturbance's of grounding box ability.
In order to solve the technical problem, the utility model discloses a technical scheme be:
a convenient high-voltage power cable sheath grounding box comprises a grounding box body, a three-phase sheath grounding wire, a grounding cable, an external through hole and an insulating structure;
the external through holes are arranged on the outer surface of the grounding box main body, and the number of the external through holes corresponds to the total number of the cables of the three-phase sheath grounding wire and the grounding cable;
one end of the grounding cable is electrically connected with one end of the three-phase sheath grounding wire and is positioned in the grounding box main body, and the other ends of the grounding cable and the three-phase sheath grounding wire are provided with external connectors;
the middle part of the grounding cable and the middle part of the three-phase sheath grounding wire penetrate through the external through holes matched with the respective radial sizes and then are arranged on the periphery of the grounding box main body, and an insulating structure is arranged.
Further, the device comprises a connecting copper bar, a switch and a flip;
the one end of switch with the three-phase sheath earth connection is located one end electricity in the ground connection box main part is connected, and the other end with the one end electricity of connecting the copper bar is connected, the other end of connecting the copper bar with earth cable is located one end electricity in the ground connection box main part is connected, the ground connection box main part with the surface that the position of switch is close is equipped with flip.
Furthermore, one end of the grounding cable in the grounding box main body is divided into an A-phase grounding end, a B-phase grounding end and a C-phase grounding end, and three-phase sheath grounding wires are respectively an A-phase sheath grounding wire, a B-phase sheath grounding wire and a C-phase sheath grounding wire;
the A-phase protective layer grounding wire, the B-phase protective layer grounding wire and the C-phase protective layer grounding wire are located at one end in the grounding box main body and are connected with the A-phase grounding end, the B-phase grounding end and the C-phase grounding end in a one-to-one correspondence mode through different connecting copper bars.
Furthermore, the phase a sheath grounding wire, the phase B sheath grounding wire and the phase C sheath grounding wire are arranged in the grounding box main body, and one end of the grounding box main body is connected with the phase a grounding end, the phase B grounding end and the phase C grounding end in a cross manner through different connecting copper bars.
Further, a voltage protector is included;
the grounding cable is electrically connected with the connecting copper bar through the voltage protector.
Further, the insulation structure is an insulation tube made of an insulation material.
To sum up, the beneficial effects of the utility model reside in that: the utility model provides a convenient type high voltage power cable sheath grounding box, through exposing three-phase sheath earth connection and grounding cable's partly outside the grounding box main part for operating personnel only need carry out electrified detection to external part, and need not dismouting grounding box, has promoted the convenience of electrified detection operation. The grounding box is not opened when in detection, so that the self anti-environmental interference capability is ensured.
Drawings
Fig. 1 is a schematic view of an overall structure of a convenient high-voltage power cable sheath grounding box according to a first embodiment of the present invention;
fig. 2 is a schematic view of an overall structure of a convenient cross-connection method for a high-voltage power cable sheath grounding box according to a second embodiment of the present invention;
description of reference numerals: 1. a grounding box main body; 2. a three-phase sheath grounding wire; 3. a ground cable; 4. externally arranging a through hole; 5. an insulating structure; 6. connecting the copper bars; 7. a switch; 8. a cover is turned; 9. a voltage protector.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 and 2, a convenient high-voltage power cable sheath grounding box includes a grounding box main body 1, a three-phase sheath grounding wire 2, a grounding cable 3, an external through hole 4 and an insulating structure 5;
the external through holes 4 are arranged on the outer surface of the grounding box main body 1, and the number of the external through holes corresponds to the total number of the cables of the three-phase sheath grounding wire 2 and the grounding cable 3;
one end of the grounding cable 3 is electrically connected with one end of the three-phase sheath grounding wire 2 and is positioned in the grounding box main body 1, and the other ends of the grounding cable 3 and the three-phase sheath grounding wire 2 are provided with external connectors;
the middle part of the grounding cable 3 and the middle part of the three-phase sheath grounding wire 2 are arranged on the periphery of the grounding box main body 1 after passing through the external through holes 4 matched with the respective radial sizes, and an insulating structure 5 is arranged.
From the above description, the beneficial effects of the present invention are: the utility model provides a convenient type high voltage power cable sheath grounding box, through exposing the partly of three-phase sheath earth connection 2 and ground cable 3 outside grounding box main part 1 for operating personnel only need carry out electrified detection to external part, and need not dismouting grounding box, has promoted the convenience of electrified detection operation. The grounding box is not opened when in detection, so that the self anti-environmental interference capability is ensured.
Further, the device comprises a connecting copper bar 6, a switch 7 and a flip cover 8;
switch 7's one end with three-phase sheath earth connection 2 is located one end electricity in the ground connection case main part 1 is connected, and the other end with the one end electricity of connecting copper bar 6 is connected, the other end of connecting copper bar 6 with earthing cable 3 is located one end electricity in the ground connection case main part 1 is connected, ground connection case main part 1 with the surface that switch 7's position is close is equipped with flip 8.
From the above description, it can be seen that, in the grounding box body 1, the switch 7 is added at the connection position of the three-phase sheath grounding wire 2 and the connecting copper bar 6. Like this, operating personnel need not to open the operation such as grounding box and dismantlement connection copper bar 6 at the in-process that has a power failure and overhauls, only need open flip 8, with the switch 7 disconnection can. The switch 7 design has saved the time spent of operating personnel's power failure maintenance operation, has promoted the convenience of ground connection case and the ability of anti external disturbance.
Furthermore, one end of the grounding cable 3 in the grounding box main body 1 is divided into an A-phase grounding end, a B-phase grounding end and a C-phase grounding end, and three-phase sheath grounding wires 2 are respectively an A-phase sheath grounding wire, a B-phase sheath grounding wire and a C-phase sheath grounding wire;
the phase A grounding wire, the phase B grounding wire and the phase C grounding wire are located at one end in the grounding box main body 1, and the phase A grounding end, the phase B grounding end and the phase C grounding end are connected in a one-to-one correspondence mode through different connecting copper bars 6.
From the above description, it should be understood that the present invention is a preferred embodiment. The utility model is used for among the design of alternately interconnected grounding box, promote the convenience of its use.
Furthermore, the phase a sheath grounding wire, the phase B sheath grounding wire and the phase C sheath grounding wire are located at one end of the grounding box main body 1, and the phase a grounding end, the phase B grounding end and the phase C grounding end are connected in a cross manner through different connecting copper bars 6.
From the above description, it is one of the preferred embodiments of the present invention to improve the convenience of the protective grounding box.
Further, a voltage protector 9 is included;
the grounding cable 3 is electrically connected with the connecting copper bar 6 through the voltage protector 9.
As can be seen from the above description, the grounding box body 1 further comprises a voltage protector 9 between the cable connections. The voltage protector 9 is used for voltage protection of the internal loop of the grounding box.
Further, the insulating structure 5 is an insulating tube made of an insulating material.
As can be seen from the above description, the three-phase sheath grounding wire 2 and the grounding cable 3 are externally disposed on the grounding box body 1 and are insulated and protected by sleeving the insulating tubes.
Referring to fig. 1, a first embodiment of the present invention is:
a convenient high-voltage power cable sheath grounding box comprises a grounding box body 1, a three-phase sheath grounding wire 2, a grounding cable 3, an external through hole 4 and an insulating structure 5. Wherein, external through-hole 4 sets up the surface and the number at ground box main part 1 and corresponds with three-phase sheath earth connection 2 and ground cable 3's cable total number, ground cable 3's one end is connected with three-phase sheath earth connection 2's one end electricity, and all be located ground box main part 1, ground cable 3's the other end and the other end of three-phase sheath earth connection 2 are provided with external joint, ground cable 3's mid portion and three-phase sheath earth connection 2's mid portion pass with the external through-hole 4 of respective radial dimension looks adaptation after set up in ground box main part 1's periphery and be equipped with insulation system 5. In this embodiment, through external three-phase sheath earth connection 2 and earthing cable 3 partly, conveniently carry out live-line detection operation in operating personnel, need not to carry out the dismouting to the grounding box, save check-out time, promoted the convenience that the grounding box used, make the grounding box be difficult for receiving external environment and disturb.
In this embodiment, the end of the grounding cable 3 in the grounding box body 1 is divided into an a-phase grounding end, a B-phase grounding end and a C-phase grounding end, and three-phase sheath grounding wires 2 are provided, which are respectively an a-phase sheath grounding wire, a B-phase sheath grounding wire and a C-phase sheath grounding wire. The end of the grounding box body 1, which is located inside the grounding box body 1, of the A-phase sheath grounding wire, the B-phase sheath grounding wire and the C-phase sheath grounding wire is connected with the A-phase grounding end, the B-phase grounding end and the C-phase grounding end in a one-to-one correspondence mode through different connecting copper bars 6.
In addition, in the present embodiment, the insulating structure 5 is an insulating tube made of an insulating material.
Referring to fig. 1, a second embodiment of the present invention is:
a convenient high-voltage power cable sheath grounding box, as shown in fig. 1, which comprises a connecting copper bar 6, a switch 7 and a flip 8 on the basis of the first embodiment. Wherein, the one end of switch 7 is connected with the one end electricity that three-phase sheath earth connection 2 is located ground connection case main part 1, and the other end is connected with the one end electricity of connecting copper bar 6, and the other end of connecting copper bar 6 is connected with the one end electricity that ground cable 3 is located ground connection case main part 1, and ground connection case main part 1 is equipped with flip 8 with the surface that switch 7's position is close. In the power failure maintenance process, an operator needs to open the grounding box and disassemble the connecting copper bars 6 and the like. This is very time and effort consuming. Therefore, the connection design of the switch 7 is adopted at the next-year connection position of the three-phase sheath grounding wire 2 and the connecting copper bar 6 in the grounding box, and the flip cover 8 is arranged at the corresponding position of the main body 1 of the grounding box. When the maintenance is stopped, the operator only needs to open the turning cover 8 and switch the switch 7 to the off state.
In this embodiment, the end of the grounding cable 3 in the grounding box body 1 is divided into an a-phase grounding end, a B-phase grounding end and a C-phase grounding end, and three-phase sheath grounding wires 2 are provided, which are respectively an a-phase sheath grounding wire, a B-phase sheath grounding wire and a C-phase sheath grounding wire. The end of the grounding box body 1, which is located inside the grounding box body 1, of the A-phase sheath grounding wire, the B-phase sheath grounding wire and the C-phase sheath grounding wire is connected with the A-phase grounding end, the B-phase grounding end and the C-phase grounding end in a one-to-one correspondence mode through different connecting copper bars 6.
In addition, in the present embodiment, the ground cable 3 and the connecting copper bar 6 are electrically connected through the voltage protector 9.
Referring to fig. 2, a third embodiment of the present invention is:
a convenient high-voltage power cable sheath grounding box is disclosed in FIG. 2, in addition to the second embodiment, the grounding wire 2 of the A-phase sheath, the grounding wire 2 of the B-phase sheath and the grounding wire 2 of the C-phase sheath are cross-connected with the grounding end of the A-phase sheath, the grounding end of the B-phase sheath and the grounding end of the C-phase sheath in the grounding box body 1 through different connecting copper bars 6.
In this embodiment, the connection mode of the grounding box is a cross-connection grounding box.
To sum up, the utility model provides a convenient type high voltage power cable sheath ground connection case exposes and has increased the switch design outside the ground connection case main part and in the junction of internal connection copper bar and three-phase sheath earth connection through with a part of three-phase sheath earth connection and ground cable for operating personnel only need carry out electrified detection or open flip back change over switch and have a power failure to overhaul external part, and need not dismouting ground connection case, has promoted the convenience of electrified detection operation. The grounding box is not opened when in detection, so that the self anti-environmental interference capability is ensured.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (6)
1. A convenient high-voltage power cable sheath grounding box is characterized by comprising a grounding box main body, a three-phase sheath grounding wire, a grounding cable, an external through hole and an insulating structure;
the external through holes are arranged on the outer surface of the grounding box main body, and the number of the external through holes corresponds to the total number of the cables of the three-phase sheath grounding wire and the grounding cable;
one end of the grounding cable is electrically connected with one end of the three-phase sheath grounding wire and is positioned in the grounding box main body, and the other ends of the grounding cable and the three-phase sheath grounding wire are provided with external connectors;
the middle part of the grounding cable and the middle part of the three-phase sheath grounding wire penetrate through the external through holes matched with the respective radial sizes and then are arranged on the periphery of the grounding box main body, and an insulating structure is arranged.
2. The convenient high voltage power cable sheath grounding box of claim 1, further comprising a connecting copper bar, a switch and a flip cover;
the one end of switch with the three-phase sheath earth connection is located one end electricity in the ground connection box main part is connected, and the other end with the one end electricity of connecting the copper bar is connected, the other end of connecting the copper bar with earth cable is located one end electricity in the ground connection box main part is connected, the ground connection box main part with the surface that the position of switch is close is equipped with flip.
3. A convenient high voltage power cable sheath grounding box according to claim 2, wherein the ends of the grounding cables in the grounding box body are divided into an a-phase grounding end, a B-phase grounding end and a C-phase grounding end, and the three-phase sheath grounding wires are three, namely an a-phase sheath grounding wire, a B-phase sheath grounding wire and a C-phase sheath grounding wire;
the A-phase protective layer grounding wire, the B-phase protective layer grounding wire and the C-phase protective layer grounding wire are located at one end in the grounding box main body and are connected with the A-phase grounding end, the B-phase grounding end and the C-phase grounding end in a one-to-one correspondence mode through different connecting copper bars.
4. A convenient high voltage power cable sheath grounding box according to claim 3, wherein the ends of said a-phase sheath grounding wire, said B-phase sheath grounding wire and said C-phase sheath grounding wire inside said grounding box body are cross-connected to said a-phase grounding end, said B-phase grounding end and said C-phase grounding end through different said copper connecting bars.
5. A convenient high voltage power cable sheath grounding box according to claim 2, further comprising a voltage protector;
the grounding cable is electrically connected with the connecting copper bar through the voltage protector.
6. A convenient high voltage power cable sheath grounding box according to claim 1, wherein the insulating structure is an insulating tube of insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022495808.5U CN213521248U (en) | 2020-11-02 | 2020-11-02 | Convenient type high voltage power cable sheath grounding box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022495808.5U CN213521248U (en) | 2020-11-02 | 2020-11-02 | Convenient type high voltage power cable sheath grounding box |
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| Publication Number | Publication Date |
|---|---|
| CN213521248U true CN213521248U (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022495808.5U Active CN213521248U (en) | 2020-11-02 | 2020-11-02 | Convenient type high voltage power cable sheath grounding box |
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|---|---|
| CN (1) | CN213521248U (en) |
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- 2020-11-02 CN CN202022495808.5U patent/CN213521248U/en active Active
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