CN217010310U - Lightning arrester insulating cross arm combination device - Google Patents
Lightning arrester insulating cross arm combination device Download PDFInfo
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- CN217010310U CN217010310U CN202123387080.5U CN202123387080U CN217010310U CN 217010310 U CN217010310 U CN 217010310U CN 202123387080 U CN202123387080 U CN 202123387080U CN 217010310 U CN217010310 U CN 217010310U
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Abstract
The utility model discloses an arrester insulating cross arm combination device, which comprises an insulating cross arm, an arrester and a busbar, and further comprises an electricity testing grounding rod, a built-in copper bar thread grounding piece and a leading-out type grounding rod; the lightning arrester comprises a cross arm connecting screw rod and a busbar connecting screw rod; the cross arm connecting screw rod sequentially penetrates through cross arm connecting holes of the insulating cross arm and the built-in copper bar threaded grounding piece and is in threaded connection with the insulating cross arm and the built-in copper bar threaded grounding piece, the built-in copper bar threaded grounding piece is tightly attached to one side of the lightning arrester, the leading-out type grounding rod is arranged on the inner side of the insulating cross arm and is connected with the built-in copper bar threaded grounding piece and the insulating cross arm through bolts, the female connecting screw rod is in threaded connection with the female busbar, the female busbar is further in threaded connection with an electricity testing grounding rod, and terminal connecting holes used for connecting high-voltage lead connecting terminals are respectively formed in the upper side and the lower side of the female busbar.
Description
Technical Field
The utility model relates to an arrester insulating cross arm combination device used in the field of overhead line cross arms.
Background
The prior overhead line mainly comprises an iron cross arm, has low insulation degree and is not beneficial to live working. Meanwhile, the iron cross arm is usually galvanized to improve the oxidation resistance and the corrosion resistance, but the surface of the cross arm is often damaged due to process problems and quality problems, so that certain potential safety hazards are caused. In some big cities, especially in old cities, the power accidents are easily caused by insufficient dense insulation degree of the power grid, and the loss is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides an insulating cross arm combination device of a lightning arrester, which can replace an iron cross arm on a line tower and improve the line insulation grade.
One technical scheme for achieving the above purpose is as follows: an arrester insulating cross arm combination device comprises an insulating cross arm, an arrester and a busbar, and further comprises an electricity testing grounding rod, a built-in copper bar threaded grounding piece and a leading-out grounding rod;
the lightning arrester comprises a cross arm connecting screw rod and a busbar connecting screw rod;
the cross arm connecting screw rod sequentially penetrates through the insulating cross arm and a cross arm connecting hole of the built-in copper bar threaded grounding piece to be in threaded connection with the insulating cross arm and the built-in copper bar threaded grounding piece, the built-in copper bar threaded grounding piece is tightly attached to one side of the lightning arrester, and the lead-out grounding rod is arranged on the inner side of the insulating cross arm and is connected with the built-in copper bar threaded grounding piece and the insulating cross arm through bolts;
female connecting screw and female threaded connection of arranging, female still threaded connection have the electricity of testing grounding rod on arranging, offer the terminal connecting hole that is used for connecting high-voltage lead wire binding post respectively in female upper and lower both sides of arranging.
Further, the lightning arrester is a pillar type zinc oxide lightning arrester.
Furthermore, a metal hoop mounting hole is formed in the middle of the insulating cross arm, an insulating sleeve penetrates through the metal hoop mounting hole, and the insulating sleeve is fixed through waterproof glue.
Further, the metal hoop mounting holes are divided into two groups, and each group is provided with 2 holes.
Furthermore, a plurality of cross arm connecting holes are correspondingly formed in the insulating cross arm and the built-in copper bar threaded grounding piece.
Furthermore, an insulating shield is sleeved on the outer side of the busbar and is locked through a fastening nail.
Furthermore, two sides of the insulating cross arm are pressed tightly through end covers.
The lightning arrester insulating cross arm combined device is suitable for urban busy sections with high requirements on intensive insulation of a power grid, live-line operation can be achieved in the process of initial installation and replacement, loss caused by power failure is reduced, the whole copper bar is adopted as a main body for internal grounding, threads are arranged on the copper bar to facilitate installation of the lightning arrester, stable connection of electrical connection points is guaranteed, the grounding rod is prefabricated outside the insulating cross arm, and the grounding wire is convenient to connect.
Drawings
Fig. 1 is a schematic structural diagram of an arrester insulating cross arm assembly according to the present invention;
fig. 2 is a schematic structural diagram of an arrester insulated cross arm assembly according to the present invention;
fig. 3 is a schematic structural diagram of an insulating cross arm of an arrester insulating cross arm assembly according to the present invention;
fig. 4 is a schematic structural view of a built-in copper bar threaded grounding part of the arrester insulating cross arm assembly according to the present invention;
fig. 5 is a schematic structural diagram of a busbar of an arrester insulating cross arm assembly according to the present invention.
Detailed Description
In order to better understand the technical solution of the present invention, the following detailed description is made by specific examples:
referring to fig. 1, the arrester insulating cross arm assembly of the present invention includes an insulating cross arm 1, a pillar-type zinc oxide arrester 2, a busbar 3, an electricity testing grounding rod 4, a built-in copper bar threaded grounding piece 5, an insulating shield 6, a lead-out grounding rod and an end cap, and is mainly applied to a line equipment end and has an overvoltage protection function.
Referring to fig. 2, the pillar type zinc oxide arrester 2 includes a cross arm connecting screw 21 and a busbar connecting screw 22. Referring to fig. 3 and 4, the openings of the insulating cross arm 1 and the built-in copper bar threaded grounding piece 5 are in one-to-one correspondence, and the insulating cross arm 1 is provided with 3 cross arm connecting holes 11. The cross arm connecting screw rod 21 sequentially penetrates through cross arm connecting holes of the insulating cross arm 1 and the built-in copper bar thread grounding piece 5 to be in threaded connection with the cross arm connecting holes, the other side of the insulating cross arm 1 is screwed up by a screw cap, the built-in copper bar thread grounding piece 5 is tightly attached to one side of the lightning arrester, and therefore electrical connection is guaranteed and the mechanical performance of the whole structure is more stable.
Two sets of metal staple bolt mounting holes 12 have been seted up at insulating cross arm 1's middle part, and every group respectively is equipped with 2 trompils, has worn insulation support in it to fix the increase intensity through the waterproof glue, be used for installing the metal staple bolt. The four-hole design can meet the installation requirements of different towers and the requirements of three tip diameters, and the insulating cross arm can be isolated from the metal hoop by using the insulating sleeve, so that the insulating protection effect is achieved.
The lead-out type grounding rod is arranged on the inner side of the insulating cross arm and is connected with the built-in copper bar threaded grounding piece and the insulating cross arm through bolts, the threaded design of the grounding rod connecting hole 13 is well guaranteed to be electrically connected, the lead-out type grounding rod can play a role in fixing the built-in copper bar threaded grounding piece well, and the insulating cross arm is convenient to connect with the ground wire.
Referring to fig. 5, the busbar connection screw 22 is threadedly connected to the busbar connection hole 33 of the busbar 3. Still be equipped with the earthed pole connecting hole 34 on female arranging 3, threaded connection has electroscopic earthed pole 4, conveniently tests the electricity and articulates bypass ground wire when overhauing the change, safe convenient construction again promptly. And the upper side and the lower side of the busbar are respectively provided with a terminal connecting hole 31 for connecting a high-voltage lead wiring terminal, and the terminal connecting holes are used for connecting the wiring terminals on the high-voltage lead. Binding post can directly spiro union on female arranging 3 on the high-pressure lead crimping, simplifies the installation construction flow, reduces intensity of labour, and female arranging 3 and binding post all adopt copper system to have certain flexibility to guarantee stable electrical connection.
Insulating guard shield 6 is arranging 3 whole covers of mother and is using the cramp locking, prevents that dust, rainwater, salt stain from arranging 3 and the corruption of connecting piece to mother, improves the insulation level of whole device, and insulating wire gets into insulating guard shield and all is insulating design to insulating cross arm is whole again, does not leak the more safe and reliable of naked dew point outward, improves the insulation level of whole circuit. The insulating cross arm composite set of arrester, the end cover covers 1 both sides of insulating cross arm and compresses tightly, prevents that dust, rainwater, salt stain from entering into inside the corroding to the metalwork of insulating cross arm. The lightning arrester insulating cross arm combination device is characterized in that a screw joint on an insulating cross arm 1 and end cover gaps on two sides are sealed by waterproof insulating resin. It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that the changes and modifications of the above embodiments are within the scope of the appended claims as long as they are within the true spirit of the present invention.
Claims (7)
1. The utility model provides an insulating cross arm composite set of arrester, includes insulating cross arm, arrester and female arranging, its characterized in that: the electric-examination grounding rod, the built-in copper bar thread grounding piece and the lead-out grounding rod are also included;
the lightning arrester comprises a cross arm connecting screw rod and a busbar connecting screw rod;
the cross arm connecting screw rod sequentially penetrates through the insulating cross arm and a cross arm connecting hole of the built-in copper bar threaded grounding piece to be in threaded connection with the insulating cross arm and the built-in copper bar threaded grounding piece, the built-in copper bar threaded grounding piece is tightly attached to one side of the lightning arrester, and the lead-out grounding rod is arranged on the inner side of the insulating cross arm and is connected with the built-in copper bar threaded grounding piece and the insulating cross arm through bolts;
female connecting screw and female threaded connection of arranging, female still threaded connection have the electricity of testing grounding rod on arranging, offer the terminal connecting hole that is used for connecting high-voltage lead wire binding post respectively in female upper and lower both sides of arranging.
2. An arrester insulating cross arm assembly as claimed in claim 1, wherein the arrester is a pillar type zinc oxide arrester.
3. The arrester insulating cross arm combination device according to claim 1, characterized in that a metal hoop mounting hole is formed in the middle of the insulating cross arm, an insulating sleeve is inserted into the metal hoop mounting hole, and the insulating cross arm is fixed by waterproof glue.
4. A lightning arrester insulating cross arm assembly as claimed in claim 3, wherein the metal hoop mounting holes are divided into two groups, each group having 2 openings.
5. The arrester insulating cross arm combination device according to claim 1, characterized in that a plurality of cross arm connecting holes are correspondingly formed on the insulating cross arm and the built-in copper bar threaded grounding piece.
6. The lightning arrester insulating cross arm combination device according to claim 1, wherein an insulating shield is sleeved outside the busbar and locked by a fastening nail.
7. The lightning arrester insulating cross arm assembly as claimed in claim 1, wherein both sides of the insulating cross arm are pressed by end caps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123387080.5U CN217010310U (en) | 2021-12-30 | 2021-12-30 | Lightning arrester insulating cross arm combination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123387080.5U CN217010310U (en) | 2021-12-30 | 2021-12-30 | Lightning arrester insulating cross arm combination device |
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| Publication Number | Publication Date |
|---|---|
| CN217010310U true CN217010310U (en) | 2022-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123387080.5U Active CN217010310U (en) | 2021-12-30 | 2021-12-30 | Lightning arrester insulating cross arm combination device |
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| CN (1) | CN217010310U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114156827A (en) * | 2021-12-30 | 2022-03-08 | 国网上海市电力公司 | Lightning arrester insulating cross arm combination device |
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2021
- 2021-12-30 CN CN202123387080.5U patent/CN217010310U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114156827A (en) * | 2021-12-30 | 2022-03-08 | 国网上海市电力公司 | Lightning arrester insulating cross arm combination device |
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