CN107564636A - A kind of anti-thunder insulator for insulated overhead line - Google Patents
A kind of anti-thunder insulator for insulated overhead line Download PDFInfo
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- CN107564636A CN107564636A CN201710745904.0A CN201710745904A CN107564636A CN 107564636 A CN107564636 A CN 107564636A CN 201710745904 A CN201710745904 A CN 201710745904A CN 107564636 A CN107564636 A CN 107564636A
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- Prior art keywords
- contact rod
- overhead line
- insulation shell
- upper contact
- insulated overhead
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Abstract
The invention discloses a kind of anti-thunder insulator for insulated overhead line, including the insulation shell with cavity, it is arranged on directly over insulation shell and is used for and the clamp gold utensil of aerial cable electrical connection, upper contact rod, is used for and upper contact rod forms the lower contact rod and the electrical verification ring of connection clamp gold utensil and upper contact rod of discharging gap.The present invention reduces outside environmental elements interference, lifts lightning Protection property stable and reliable for performance.
Description
Technical field
The invention belongs to power overhead network technical field, and in particular to a kind of lightning protection for insulated overhead line is insulated
Son.
Background technology
Overhead line can produce power frequency continued flow after being struck by lightning, so-called power frequency continued flow, be exactly overhead line after overhead line is struck by lightning
Thunder and lightning arc is just produced between metal cross arm, this thunder and lightning arc life span is very short, but it is formd between overhead line and cross-arm
Conductive channel, the power supply of overhead line is set to occur over the ground（Cross-arm）Short circuit, this short circuit current are referred to as power frequency continued flow（Be after lightning current it
Power current afterwards）, for power frequency continued flow, cross-arm or grounding of pole resistance are bigger, and power frequency continued flow is smaller, easier cutout.
Patent document CN201000796Y discloses a kind of lightning protection pillar insulator, is mainly closed by insulating shield, clamp aluminium
Gold utensil, composite insulator, starting rod and lower steel pin etc. form.Its main feature：（1）When thunderbolt occurs, starting rod and lower steel
Causing umbrella network to discharge between pin, form short-channel, the power frequency arc to continue, which is moved between starting rod and lower steel pin, to burn, with
Protect wire from burn.Because starting rod gets around full skirt and adjusts to optimal discharge gap, discharge effect is more preferable, and prevents from burning out
Insulator umbrella.But this kind of lightning protection pillar insulator still suffers from following weak point：Outside the point of discharge of starting rod and lower steel pin
Dew, easily accumulates dirt, influences discharging action.
In addition, existing insulated overhead line in maintenance, it is necessary to set up electricity testing rod, be applied not only to judge circuit whether band
Electricity, ground wire can be also accessed to reduce electric shock risk；But existing insulated overhead line whole body insulation, traditional electricity testing rod
Can not directly it use；Therefore also need to be improved some existing insulators, it can arrange in pairs or groups and use with existing electricity testing rod.
The content of the invention
The present invention provides a kind of lightning protection for insulated overhead line with electrical verification rod built in discharging gap and insulated
Son.
Realizing the technical scheme of the object of the invention is：A kind of anti-thunder insulator for insulated overhead line, including with
The insulation shell of cavity, be arranged on directly over insulation shell be used for and aerial cable electrical connection clamp gold utensil, upper contact rod,
For forming the lower contact rod and the electrical verification ring of connection clamp gold utensil and upper contact rod of discharging gap with upper contact rod.
In such scheme, the top of the bottom of upper contact rod and lower contact rod is respectively provided with a ball discharge, this two electric discharges
Ball is located at the upper and lower part of the cavity respectively, and discharging gap is located at the middle part of cavity.
In such scheme, the upper and lower ends of insulation shell are respectively provided with a metal cover, and each metal cover is consolidated by rolling mode
Surely it is arranged on corresponding one end.
In such scheme, through hole is provided with the center of each metal cover, upper contact rod and lower contact rod are consolidated by welding manner
Surely it is arranged in a corresponding through hole.
In such scheme, insulation shell is made of ceramics, and the middle part of insulation shell is provided with column porcelain tripe, the periphery of porcelain tripe
Wall is provided with the ring-type full skirt of evagination.
In such scheme, the bleeder port of a plurality of connection cavity is preferably provided with the wall body of porcelain tripe.
The present invention has advantages below：（1）The upper contact rod of formation discharging gap and lower contact rod are placed in insulator
In cavity, it is ensured that the cleaning of point of discharge, so as to ensure that the reliability of discharge prevention action；（2）Electrical verification rod is arranged to
Electrically connect with upper contact rod, used so that it can be mounted with existing electricity testing rod.
Brief description of the drawings
Fig. 1 is a kind of dimensional structure diagram of the present invention；
Fig. 2 is a kind of half section structure diagram of insulator shown in Fig. 1.
Mark shown in accompanying drawing for：Insulation shell 1, cavity 11, metal cover 12, through hole 121, porcelain tripe 13, full skirt 14, clamp gold
Tool 2, upper fixture block 21, lower fixture block 22, bolt connection piece 23, clamp hole 24, upper contact rod 3, power connection end 31, lower contact rod 4, installation
Portion 41, ball discharge 5, electrical verification ring 6, rectangular body 61, upper connection boss 62, lower connection boss 63.
Embodiment
（Embodiment 1, lightning protection pillar insulator）
It is below in conjunction with accompanying drawing and specifically real to make the technical problem to be solved in the present invention, technical scheme and advantage clearer
Example is applied to be described in detail.
The present invention provides a kind of anti-thunder insulator for insulated overhead line, as depicted in figs. 1 and 2, including with chamber
The insulation shell 1 of body 11, be arranged on directly over insulation shell be used for and aerial cable electrical connection clamp gold utensil 2, upper conduction
Rod 3, connection clamp gold utensil and upper contact rod electrical verification ring 6 and be used for and upper contact rod formed discharging gap lower contact rod 4.
The bottom of upper contact rod and the top of lower contact rod are respectively provided with a ball discharge 5, and two ball discharges are located at respectively
The upper and lower part of the cavity, discharging gap are located at the middle part of cavity.
When thunderbolt occurs, thunder-strike current discharges between two ball discharges.
The upper and lower ends of insulation shell are respectively provided with a metal cover 12, and each metal cover is fixedly installed on phase by rolling mode
On the one end answered；Through hole 121 is provided with the center of each metal cover, upper contact rod and lower contact rod are fixedly installed by welding manner
In a corresponding through hole.
Insulation shell is made of ceramics, and the middle part of insulation shell is provided with column porcelain tripe 13, and the periphery wall of porcelain tripe is provided with
The ring-type full skirt 14 of evagination, the bleeder port of a plurality of connection cavity is preferably provided with the wall body of porcelain tripe；When thunder-strike current discharges, chamber
When gases are heated, they expand in vivo, is discharged from bleeder port.
Clamp gold utensil 2 includes the bolt connection piece 23 of upper fixture block 21, lower fixture block 22 and be connected upper fixture block and lower fixture block,
Upper fixture block and lower fixture block clamping form a clamp hole 24 for being used to clamp aerial cable.
Corresponding metal cover and the electrical connection of electrical verification ring are stretched out in the upper end of upper contact rod upwards as power connection end 31.
Electrical verification ring 6 includes rectangular body 61, the upper connection boss 62 positioned at rectangular body top and under rectangular body
The lower connection boss 63 at end；Welding hole is provided with the bottom center of lower fixture block, upper connection boss is fixedly installed by welding manner
In the welding hole.Welding hole also is provided with the center of lower connection boss, the power connection end of upper contact rod is fixed by welding manner
It is arranged in the welding hole.
The lower end of lower contact rod extends downwardly from corresponding metal cover as the installation portion 41 being fixedly installed on cross-arm.
The upper contact rod and lower contact rod are located along the same line.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.And these
The obvious changes or variations that the connotation for belonging to of the invention is extended out still falls within protection scope of the present invention.
Claims (6)
1. a kind of anti-thunder insulator for insulated overhead line, including the insulation shell with cavity, it is arranged on insulation shell
Surface be used for and aerial cable electrical connection clamp gold utensil, upper contact rod and be used for and upper contact rod formed discharging gap
Lower contact rod；It is characterized in that：Also include the electrical verification ring of connection clamp gold utensil and upper contact rod.
2. the anti-thunder insulator according to claim 1 for insulated overhead line, it is characterised in that：The bottom of upper contact rod
End and the top of lower contact rod are respectively provided with a ball discharge, and two ball discharges are located at the upper and lower part of the cavity respectively,
Discharging gap is located at the middle part of cavity.
3. the anti-thunder insulator according to claim 2 for insulated overhead line, it is characterised in that：Insulation shell it is upper
Lower both ends are respectively provided with a metal cover, and each metal cover is fixedly installed on corresponding one end by rolling mode.
4. the anti-thunder insulator according to claim 3 for insulated overhead line, it is characterised in that：In each metal cover
Through hole, upper contact rod and lower contact rod is provided with the heart to be fixedly installed in a corresponding through hole by welding manner.
5. the anti-thunder insulator according to claim 4 for insulated overhead line, it is characterised in that：Insulation shell uses
Ceramics are made, and the middle part of insulation shell is provided with column porcelain tripe, and the periphery wall of porcelain tripe is provided with the ring-type full skirt of evagination.
6. the anti-thunder insulator according to claim 5 for insulated overhead line, it is characterised in that：On the wall body of porcelain tripe
It is preferably provided with the bleeder port of a plurality of connection cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710745904.0A CN107564636A (en) | 2017-08-26 | 2017-08-26 | A kind of anti-thunder insulator for insulated overhead line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710745904.0A CN107564636A (en) | 2017-08-26 | 2017-08-26 | A kind of anti-thunder insulator for insulated overhead line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107564636A true CN107564636A (en) | 2018-01-09 |
Family
ID=60976855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710745904.0A Pending CN107564636A (en) | 2017-08-26 | 2017-08-26 | A kind of anti-thunder insulator for insulated overhead line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107564636A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201185110Y (en) * | 2007-09-06 | 2009-01-21 | 固力发电气有限公司 | Puncture type lightning protection insulator |
| CN202019192U (en) * | 2011-04-01 | 2011-10-26 | 衢州日新电气有限公司 | Combined device with grounded middle point |
| CN205122307U (en) * | 2015-12-09 | 2016-03-30 | 方隆电气设备有限公司 | Pin type ground connection lightning protection insulator |
| CN106782938A (en) * | 2017-01-20 | 2017-05-31 | 刘进生 | Porcelain bottle insulators with safety guard and electricity testing grounding ring |
| CN206312664U (en) * | 2016-12-30 | 2017-07-07 | 中山市泰峰电气有限公司 | A kind of transformer disc insulator with many passages |
-
2017
- 2017-08-26 CN CN201710745904.0A patent/CN107564636A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201185110Y (en) * | 2007-09-06 | 2009-01-21 | 固力发电气有限公司 | Puncture type lightning protection insulator |
| CN202019192U (en) * | 2011-04-01 | 2011-10-26 | 衢州日新电气有限公司 | Combined device with grounded middle point |
| CN205122307U (en) * | 2015-12-09 | 2016-03-30 | 方隆电气设备有限公司 | Pin type ground connection lightning protection insulator |
| CN206312664U (en) * | 2016-12-30 | 2017-07-07 | 中山市泰峰电气有限公司 | A kind of transformer disc insulator with many passages |
| CN106782938A (en) * | 2017-01-20 | 2017-05-31 | 刘进生 | Porcelain bottle insulators with safety guard and electricity testing grounding ring |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180109 |