CN204178826U - A kind of bidirectional multifunctional lightning protection pillar insulator - Google Patents
A kind of bidirectional multifunctional lightning protection pillar insulator Download PDFInfo
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- CN204178826U CN204178826U CN201420071148.XU CN201420071148U CN204178826U CN 204178826 U CN204178826 U CN 204178826U CN 201420071148 U CN201420071148 U CN 201420071148U CN 204178826 U CN204178826 U CN 204178826U
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- insulator
- full skirt
- grounding electrode
- starting rod
- ground connection
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Abstract
The utility model discloses a kind of bidirectional multifunctional lightning protection pillar insulator, comprises clamp gold utensil, striking fork, moment bolt, pin insulator, grounding electrode; The two ends of insulator part are connected with cross-arm with wire clamp seat lower lock block respectively, and its outer surface is provided with large full skirt and little full skirt; Lower steel pin is arranged on insulator part near cross-arm one end; Tension seat both sides connect an insulation starting rod respectively, and wherein striking bandage in side has the ground connection electrical verification ring be connected with it; Grounding electrode is positioned at lower steel pin and cross-arm junction, and fixes with bolt, respectively forms a discharging gap with both sides starting rod.The utility model adopts post insulator, ground connection electrical verification ring, arc-preventing metal utensil integrated design, has insulating supporting, line thunder protection, ground connection electrical verification three functions, has both saved production cost and turn improved the lightning withstand level of circuit.
Description
Technical field
The utility model relates to a kind of electric protection device, is specifically related to a kind of bidirectional multifunctional lightning protection and props up post insulator.
Background technology
Along with the development of economic society, people are more and more stronger to the dependence of electric energy, more and more higher to the requirement of power supply reliability.Power distribution network is the network distributing electric energy directly to vast power consumer, and thus the safety of power distribution network and power supply reliability more and more come into one's own.Distribution line is the important component part of power distribution network, distribution is wide, insulation level is low, be connected to transformer station and numerous user, at thunderstorm season, often because lightening hazard causes the damage of controller switching equipment and subscriber equipment, as insulator breakdown or explosion, distribution line broken string, lightning arrester explosion, distribution transforming breaking-up, household electrical appliance damage, cause large-area power-cuts, even cause loss of life or personal injury etc. when serious, bring loss to industrial and agricultural production, make troubles to people's daily life.Operating experience shows, accounts for total tripping operation number of times 70% ~ 80% by the tripping operation number of times that causes of being struck by lightning, and especially in many thunders, soil resistivity is high, with a varied topography, span is large area, the failure rate that thunderbolt distribution line causes is higher.According to statistics, in the electrical network of 10kV electric pressure, tripping rate with lightning strike remains high, and often has the equipment such as on-pole switch, disconnecting link, lightning arrester, transformer, sleeve pipe to damage when lightening activity, greatly have impact on the power supply reliability of medium voltage network, have impact on the safe and stable operation of power distribution network.
China is aerial insulated wire on probation from the eighties, and is actively promoted always.After adopting insulation erection, generally greatly can reduce the generation of lightening hazard.But in distribution work is implemented, because major part is removed by the plain conductor on former circuit, change insulated wire, the lightning protection measures of its lightning protection measures and original plain conductor circuit does not change, thus easily there is lightning-caused breaking accident.
Insulated conductor breakage caused by lightning stroke mechanism is: during lightning overvoltage flashover, and instantaneous arc current is very large, and the time is very short, only on suspended insulated guide wire, forms blow hole, can not blow wire.When generation lightning overvoltage flashover, wire insulation and insulator particularly occur between two-phase or three-phase (not necessarily on same electric pole) puncture when forming metallic short circuit passage with flashover simultaneously and can cause kilo-ampere power frequency continued flow, arc energy will increase severely.Now, because suspended insulated guide wire insulating barrier hinders electric arc at its surface sliding, high temperature arc velamen is fixed on the breakdown point calcination of insulating barrier.And for plain conductor, electric arc is under the effect of electromagnetic force, high temperature arc root is along the continuous slippage of conductive line surfaces, be not concentrated in a certain point to burn, therefore can not serious burn wire like this, usually blow wire at power frequency continued flow or damage before insulator and will cause breaker actuation, breaking arc.This is also the reason that the disconnection fault rate of plain conductor is starkly lower than aerial insulated cable.
Current power distribution network lightning protection measures mainly contain improve line insulation level, reduce 10kV pole tower ground resistance, zinc oxide arrester (MOA), clamp insulator, current limliting cut arc angle, increase the measures such as flashover path, line overvoltage protection device, lightning protection pillar insulator and arc-preventing metal utensil.
Utility model content
The utility model proposes a kind of bidirectional multifunctional lightning protection pillar insulator, there are insulating supporting, line thunder protection and ground connection electrical verification three functions, both there is good lightning protection effect, can save production cost again.
The technical solution of the utility model is:
As shown in Figure 1, a kind of bidirectional multifunctional lightning protection pillar insulator of the utility model is by nut 1, and upper holder block 2, bolt 3, lower lock block 4, puncture tooth 5, starting rod 6, ground connection electrical verification ring 7, insulator 8, large full skirt 9, little cluster parachute 10, grounding electrode 11, insulating shield 12 forms.
Described pillar insulator 8 top is connected with clamp gold utensil, and grounding electrode 11 is arranged at bottom.Clamp gold utensil comprises upper holder block 2, lower lock block 4, upper holder block 2 is connected by 2 bolts and nut with lower lock block 4, there is insulating shield 12 clamp gold utensil outside, wire guide is had between upper holder block and lower lock block, the radius of wire guide is identical with the radius of installed and used maximum wire, is provided with puncture tooth in wire guide, and the height of puncture tooth is a bit larger tham the thickness of wire insulation; The tooth that punctures under the cooperation of above-mentioned upper holder block 2, lower lock block 4 and bolt 3 can penetrate and be arranged on wire insulation in wire guide and wire and formed and be electrically connected; Described outer surface of insulator is provided with large full skirt and little full skirt, and large full skirt and little cluster parachute interval are arranged, and total quantity is 5, and nearly clamp gold utensil and lower square steel foot are large full skirt.
Starting rod is positioned at pillar insulator both sides, and its end is elbow structure, and elbow is towards grounding electrode 11; With the ground connection electrical verification ring 7 with starting rod one on certain side of insulator both sides starting rod, electrical verification during for overhauling construction and ground interface.
Described grounding electrode 11 is set on the steel pin below insulator 8, the two ends of grounding electrode 11 upwardly, forming discharging gap with the end of described starting rod 6, when making wire occurs lightning overvoltage, discharging the energy of lightning induction by discharging between starting rod 6 and grounding electrode 11.When there being thunder to attack shaft tower or wire directly; flashover is caused to discharge between steel pin under both sides starting rod and both sides; form short-channel; the power frequency arc continued moves between starting rod and steel pin and burns; burn is avoided with guardwire; get around full skirt because of starting rod and be adjusted to optimal discharge gap, discharge effect is better and prevent from burning out insulator umbrella.Because respectively there is 1 cover starting rod and grounding electrode these utility model both sides, during installation, user is without the need to considering the direction of load, and construction is simple, can not cause the situation that the lightning protection properties caused because of construction reason declines.
Accompanying drawing explanation
Fig. 1 is a kind of bidirectional multifunctional lightning protection pillar insulator of the utility model.
In figure: 1 nut, 2 upper holder blocks, 3 bolts, 4 lower lock blocks, 5 wire guides, 6 starting rods, 7 ground connection electrical verification rings, 8 insulators, 9 large full skirts, 10 little cluster parachutes, 11 grounding electrodes, 12 insulating shields.
Embodiment
As shown in Figure 1, a kind of bidirectional multifunctional lightning protection pillar insulator of the utility model is by nut 1, and upper holder block 2,3 bolts, lower lock block 4, wire guide 5, starting rod 6, ground connection electrical verification ring 7, insulator 8, large full skirt 9, little cluster parachute 10, grounding electrode 11, insulating shield 12 forms.
Described pillar insulator 8 top is connected with clamp gold utensil, and grounding electrode 11 is arranged at bottom.Clamp gold utensil comprises upper holder block 2, lower lock block 4, upper holder block 2 is connected by 2 bolts and nut with lower lock block 4, there is insulating shield 12 clamp gold utensil outside, wire guide is had between upper holder block and lower lock block, the radius of wire guide is identical with the radius of installed and used maximum wire, is provided with puncture tooth in wire guide, and the height of puncture tooth is a bit larger tham the thickness of wire insulation; The tooth that punctures under the cooperation of above-mentioned upper holder block 2, lower lock block 4 and bolt 3 can penetrate and be arranged on wire insulation in wire guide and wire and formed and be electrically connected.
Starting rod is positioned at pillar insulator both sides, and its end is elbow structure, elbow towards grounding electrode 11, on certain side of insulator both sides starting rod with starting rod one ground connection electrical verification ring 7.
Described grounding electrode 11 is set on the steel pin below insulator 8, the two ends of grounding electrode 11 upwardly, form discharging gap with the end of described starting rod 6, discharge between starting rod 6 and grounding electrode 11 by striking gold utensil and discharge the energy of lightning induction when making wire occurs lightning overvoltage.Because respectively there is 1 cover starting rod and grounding electrode these utility model both sides, user does not need the direction considering load when mounted, easy construction.
Under normal operating conditions, electric current is not had to flow through; When insulated conductor occurring lightning overvoltage, discharging overvoltage by the gap discharge between starting rod 6 discharge end and grounding electrode 11, reaching the object of protection insulated conductor.
Insulator and starting rod adopt silicon rubber composite material, are more conducive to prevent pollution flashover.
Those skilled in the art will be understood that system embodiment described above is only schematic, are not to its restriction.Any do within spirit of the present utility model and principle amendment, equivalent substitute and improve, all should be included within claims of the present utility model.
Claims (1)
1. a bidirectional multifunctional lightning protection pillar insulator, is characterized in that it is made up of nut, upper holder block, bolt, lower lock block, puncture tooth, two-way starting rod, ground connection electrical verification ring, insulator, large full skirt, little full skirt, grounding electrode, insulating shield; This insulator top is connected with clamp gold utensil, described clamp gold utensil comprises upper holder block, lower lock block, described upper holder block is connected by 2 bolts and nut with lower lock block, there is insulating shield described clamp gold utensil outside, wire guide is had between upper holder block and lower lock block, the radius of wire guide is identical with the radius of installed and used maximum wire, is provided with puncture tooth in wire guide, and the height of described puncture tooth is a bit larger tham the thickness of wire insulation; Described outer surface of insulator is provided with large full skirt and little full skirt, and large full skirt and little full skirt interval are arranged, and total quantity is 5, and nearly clamp gold utensil and lower square steel foot are large full skirt; The two side ends of described insulator respectively has a starting rod, and described insulator side starting rod has ground connection electrical verification loop device; Grounding electrode is arranged at described insulator bottom, and grounding electrode is set on the steel pin below insulator, and the two ends of grounding electrode upwardly, respectively form a discharging gap with the starting rod end of insulator both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420071148.XU CN204178826U (en) | 2014-02-19 | 2014-02-19 | A kind of bidirectional multifunctional lightning protection pillar insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420071148.XU CN204178826U (en) | 2014-02-19 | 2014-02-19 | A kind of bidirectional multifunctional lightning protection pillar insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204178826U true CN204178826U (en) | 2015-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420071148.XU Expired - Fee Related CN204178826U (en) | 2014-02-19 | 2014-02-19 | A kind of bidirectional multifunctional lightning protection pillar insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204178826U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355342A (en) * | 2015-12-10 | 2016-02-24 | 国网四川省电力公司电力科学研究院 | Line lightning arrester |
-
2014
- 2014-02-19 CN CN201420071148.XU patent/CN204178826U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355342A (en) * | 2015-12-10 | 2016-02-24 | 国网四川省电力公司电力科学研究院 | Line lightning arrester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20160219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |