CN201466258U - Special grounding wire for high/low-voltage cable branch box - Google Patents
Special grounding wire for high/low-voltage cable branch box Download PDFInfo
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- CN201466258U CN201466258U CN2009201047762U CN200920104776U CN201466258U CN 201466258 U CN201466258 U CN 201466258U CN 2009201047762 U CN2009201047762 U CN 2009201047762U CN 200920104776 U CN200920104776 U CN 200920104776U CN 201466258 U CN201466258 U CN 201466258U
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Abstract
The utility model relates to a special grounding wire for a high/low-voltage cable branch box. A clamping device is connected at one end of a cable wire, and at least two plugging type connecting plugs are connected at the other end of the cable wire in parallel. The special grounding wire can be adapted with grounding wire joints in the cable branch box of a ring net cabinet in size and quantity, can exactly, conveniently and quickly clamp the plugs connected in parallel onto the grounding wire joints in the cable branch box, and then can fix the clamping device at the other end of the cable wire onto a grounding copper rod, thereby quickly and reliably finishing the grounding operation of the cable branch box of the ring net cabinet. The special grounding wire is suitable for the grounding operation of the cable branch box of the ring net cabinet for high/low-voltage, single-phase or three-phase cable lines.
Description
Technical field
The utility model relates to a kind of parts of the emergency protective circuit device that overcurrent is reacted, the special-purpose earth connection of specifically a kind of high-low pressure cable branch box.
Background technology
In the cable laying work in city, the use of ring main unit cable branch box is more and more.When carrying out the installation exercise of ring main unit cable branch box, corresponding cable line is had a power failure, and carry out the grounding safety measure at power failure cable two ends, after hanging up properly earth connection, just can operate.For the ring main unit cable branch box, also there is not suitable special-purpose earth connection at present, therefore, in real work, be to use power transformation folder formula earth connection to carry out the ground connection of cable line more.This power transformation folder formula earth connection is the dead earth facility that is exclusively used in fixed-sites such as transformer station, power plant, in the construction operation of cable line, use just not very convenient, loaded down with trivial details, time and effort consuming not only is installed, obscission also usually occurred, reduced the fail safe that earth connection uses.
Summary of the invention
The purpose of this utility model just provides the special-purpose earth connection of a kind of high-low pressure cable branch box, to solve the existing problem that inconvenience and poor stability are installed of the existing use of ground connection facility in the ring main unit cable branch box.
The utility model is achieved in that the special-purpose earth connection of a kind of high-low pressure cable branch box, in a termination of cable clamping device is arranged, at the other end of cable and be connected to the plug of at least two plug-ins.The plug of this plug-in can be suitable with the size and the quantity of earth connection point in the ring main unit cable branch box, thereby can be accurately, each and the plug that connects are fastened in each earth connection point in the cable branch box easily, and then the clamping device of the cable other end is fixed to such as on the grounded partss such as ground connection copper rod, so just can quickly and reliably finish the ground connection operation of ring main unit cable branch box.
The utility model is applicable to the ground connection operation of high pressure, low pressure and single-phase or the used ring main unit cable branch box of threephase cable circuit.
Plug described in the utility model has an insulation plug body that turns the handle shape, cross-under has cable core in the plug body, end thread at the plug body is connected with rotary joint, the poroid contact electrode of internal lining pipe in rotary joint, and the inner of contact electrode is connected with cable core.This structure can be carried out the grafting and the dismantling operation of this earth connection plug well, and flexible and convenient operation not only, but also difficult drop-off connect reliable.Thereby solved original ground connection facility well and be connected the existing problem that inconvenience and poor stability are installed with the ring main unit cable branch box.
The utility model is in practice, and assembling and disassembling is convenient, and the set-up time can be reduced to by original 15 minutes 2-3 minute, and operating efficiency improves; Simultaneously, it is reliable, firm that the utility model connects, and can not come off, and grounding safety is reliable, and after connecting this earth connection, can also close the chamber door of ring main unit tape cable feeder pillar fully, has improved fail safe.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, this special-purpose earth connection is the clamping device 3 that routine is arranged in a termination of cable 2, at the other end of cable 2 and be connected to the plug 1 of three plug-ins, after promptly three cables that join respectively with three plugs 1 are connected together altogether, connect again and draw long cable or directly utilize wherein long cable, to connect clamping device 3.
A kind of concrete structure of plug 1 is: a nylon system insulation plug body 4 that at right angles turns the handle shape is arranged, cross-under has cable core 5 in insulation plug body 4, the rotary joint 6 that connects a nylon system in the end thread of insulation plug body 4, be lined with the red copper contact electrode 7 of the flexible clamping formula of pore shape in rotary joint 6, the inner of contact electrode 7 is connected with cable core 5, the external port of contact electrode 7 is divided into 3 or 4 lobes, be used for the earth connection point of cutting ferrule ring main unit cable branch box, realize that thus plug 1 is connected with the firm of earth connection point.
Claims (2)
1. the special-purpose earth connection of a high-low pressure cable branch box has clamping device (3) in a termination of cable (2), it is characterized in that at the other end of cable (2) and is connected to the plug (1) of at least two plug-ins.
2. the special-purpose earth connection of high-low pressure cable branch box according to claim 1, it is characterized in that described plug (1) has an insulation plug body (4) that turns the handle shape, cross-under has cable core (5) in plug body (4), end thread at plug body (4) is connected with rotary joint (6), the poroid contact electrode of internal lining pipe (7) in rotary joint (6), the inner of contact electrode (7) is connected with cable core (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201047762U CN201466258U (en) | 2009-09-08 | 2009-09-08 | Special grounding wire for high/low-voltage cable branch box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201047762U CN201466258U (en) | 2009-09-08 | 2009-09-08 | Special grounding wire for high/low-voltage cable branch box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201466258U true CN201466258U (en) | 2010-05-12 |
Family
ID=42393605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201047762U Expired - Fee Related CN201466258U (en) | 2009-09-08 | 2009-09-08 | Special grounding wire for high/low-voltage cable branch box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201466258U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001020A (en) * | 2012-12-17 | 2013-03-27 | 宁夏电力公司中卫供电局 | Ground connection wire device of cable branch box |
| CN103441352A (en) * | 2013-08-20 | 2013-12-11 | 国家电网公司 | Grounding wire for electric cabinet |
| CN103457053A (en) * | 2013-09-22 | 2013-12-18 | 国家电网公司 | Grounding device for maintenance of box-type transformer |
| CN103487614A (en) * | 2013-10-18 | 2014-01-01 | 国家电网公司 | Secondary testing device of current transformer and assembly thereof |
| CN105048119A (en) * | 2015-06-16 | 2015-11-11 | 国网天津市电力公司 | Portable grounding wire for test |
| CN110277738A (en) * | 2019-04-29 | 2019-09-24 | 国网浙江省电力有限公司金华供电公司 | A kind of low-tension distribution box of line apparatus with ground |
| CN111064014A (en) * | 2019-10-29 | 2020-04-24 | 国网浙江省电力有限公司舟山供电公司 | Low-voltage grounding wire hanging terminal device of low-voltage cable branch box |
| CN118156827A (en) * | 2024-03-04 | 2024-06-07 | 国网安徽省电力有限公司定远县供电公司 | Special earth wire for plug-in cable end |
-
2009
- 2009-09-08 CN CN2009201047762U patent/CN201466258U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001020A (en) * | 2012-12-17 | 2013-03-27 | 宁夏电力公司中卫供电局 | Ground connection wire device of cable branch box |
| CN103441352A (en) * | 2013-08-20 | 2013-12-11 | 国家电网公司 | Grounding wire for electric cabinet |
| CN103441352B (en) * | 2013-08-20 | 2015-11-18 | 国家电网公司 | Electricity cabinet earth connection |
| CN103457053A (en) * | 2013-09-22 | 2013-12-18 | 国家电网公司 | Grounding device for maintenance of box-type transformer |
| CN103457053B (en) * | 2013-09-22 | 2016-07-06 | 国家电网公司 | A kind of box type transformer inspection earthing device |
| CN103487614A (en) * | 2013-10-18 | 2014-01-01 | 国家电网公司 | Secondary testing device of current transformer and assembly thereof |
| CN103487614B (en) * | 2013-10-18 | 2016-08-24 | 国网冀北电力有限公司秦皇岛供电公司 | A kind of safe Current Transformer Secondary test device combination |
| CN105048119A (en) * | 2015-06-16 | 2015-11-11 | 国网天津市电力公司 | Portable grounding wire for test |
| CN110277738A (en) * | 2019-04-29 | 2019-09-24 | 国网浙江省电力有限公司金华供电公司 | A kind of low-tension distribution box of line apparatus with ground |
| CN111064014A (en) * | 2019-10-29 | 2020-04-24 | 国网浙江省电力有限公司舟山供电公司 | Low-voltage grounding wire hanging terminal device of low-voltage cable branch box |
| CN118156827A (en) * | 2024-03-04 | 2024-06-07 | 国网安徽省电力有限公司定远县供电公司 | Special earth wire for plug-in cable end |
| CN118156827B (en) * | 2024-03-04 | 2024-08-23 | 国网安徽省电力有限公司定远县供电公司 | Special earth wire for plug-in cable end |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20110908 |