CN101136544A - Lightning arrester - Google Patents
Lightning arrester Download PDFInfo
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- CN101136544A CN101136544A CNA2007100709732A CN200710070973A CN101136544A CN 101136544 A CN101136544 A CN 101136544A CN A2007100709732 A CNA2007100709732 A CN A2007100709732A CN 200710070973 A CN200710070973 A CN 200710070973A CN 101136544 A CN101136544 A CN 101136544A
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- lightning rod
- lightning
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- absorption device
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Abstract
This invention relates to a lightning rod including a lightning guiding body, a leading down wire, a knighthead and an earth body, in which, one end of the leading down wire is connected with the lightning guiding body and the other end is connected with the earth body to be linked to the earth, the knighthead supports the lightning rod, an energy consumption device is set between the lightning guiding body and the leading down wire, namely a resistor of 10-100000ohm serial to a ZnO element is set between them, the knighthead is made of anti-corrosion material and the lightning guiding body is made of a metal material in the shape of a pellet, a cylinder or other structures in favor of leading lightning.
Description
(1) technical field
The present invention relates to a kind of being widely used in avoids the lightning rod that is struck by lightning to objects such as equipment, people, buildings.
(2) background technology
The shocking preventing technology of existing anti-direct stroke has two kinds in present stage:
A kind of is traditional all-metal lightning rod system equipment; comprise and draw thunder body, downlead, support bar, earth electrode; it is a kind of " drawing the thunder formula " lightning protection mode; the protective effect of this lightning rod; be him than protected object height, can guide thunder and lightning into from protected object top the earth that leaks into of self and safety.Thunder and lightning is leaking into the process of the earth, be exactly the process of thunder and lightning energy consumption, the energy of thunder and lightning all consumes on lightning in the space, lightning rod, the earth electrode, and the energy that leaks into the earth only is to be equivalent to the energy that consumes on the ground line resistance, in addition, the earth does not absorb any thunder and lightning energy.On the thunderbolt energy pathway of this consumption; the thunderbolt energy that consumes and the resistance of each part on the approach are directly proportional; because lightning rod is an all-metal construction; resistance is very little; the thunderbolt power that consumes on lightning rod is less than the power that earth electrode consumes; most thunderbolt energy consumption is on earth electrode; also promptly on around ground connection tie point and the earth electrode, can produce very high thunderbolt voltage; for reducing this ground voltage the people is produced the step voltage potential safety hazard; require to adopt the mode of good earth; to reduce this earthy influence; an earth connection that meets the protective standard requirement will be changed very big cost, and keep this ground wire for a long time also is the very difficult thing of part.This " drawing the thunder formula " lightning conductor protection mode; the reliability of its protection depends on the effect of drawing thunder; say qualitatively that generally lightning current is big more, the protection effect of lightning rod and protection range are good more wide more; under the good situation of ground connection; the release bleeder resistance of approach of whole lightning rod system is very little, and leakage current is very big, employing be a kind of consumption ways of thunderbolt energy of big leakage current; be easy to " draw thunder and go into ground ", therefore increased the probability of direct stroke.When direct stroke takes place, just might cause the damage of peripheral electronic information equipment, when hitting to dodge on position or the earth point at lightning rod, direct stroke hits the sudden strain of a muscle explosion time, near unobstructed personnel's the damage huge impact ripple can cause.And since earth electrode peripherally current potential exist the potential safety hazard of step voltage, may damage the people.
The another kind thunder type electronics lightning rod that disappears, most typical have a plasma lightning arrester, and its effect is the charge polarity measuring ability that utilizes the electronics lightning rod, detect the charged polarity of charged cloud layer, produce the electric charge of identical polar, cover the sudden strain of a muscle aspect that connects of electronics lightning arrester, thereby eliminate the possibility of thunderbolt.This lightening arresting method does not have the lightning current dissipation array of flowing through, and dissipation array does not consume the energy of thunder and lightning, and therefore (also) is easy to take place the accident potential of shielding, only to the protection of among a small circle single body yet.
(3) summary of the invention
Technical problem to be solved by this invention is to provide a kind of safety, and cost is low, and grounding requirement is low, lightning rod applied widely.
A kind of lightning rod comprises and draws thunder body, downlead, support bar, earth electrode, downlead one end with draw the thunder body and be connected, the other end is connected with earth electrode, earth electrode ground connection connects, they sup-port lightning rod, the described energy absorption device of connecting between thunder body and the downlead that draws.
Preferably, described energy absorption device is a resistance.
Preferably, described resistance is 10 ohm～100000 ohm.
Preferably, described energy absorption device is a zinc oxide component.
Preferably, described energy absorption device is zinc oxide component and resistance series connection.
Preferably, described support bar is made by corrosion resistant metal material, has certain intensity.
Preferably, the described thunder body that draws is made by metal material, becomes ball, cylinder or other to help drawing the planform of thunder.
A kind of lightning rod beneficial effect of the present invention is:
1, the present invention is not by the lightning rod system the earth of directly releasing according to the thunderbolt energy, this lightning rod system is exactly the reason of thunderbolt energy consumption in this lightning rod system but lightning current is flowed through, draw the thunder body below, the top of earth electrode is provided with energy absorption device, most energy consumptions of thunderbolt on energy absorption device, are only consumed the thunderbolt energy of small part on earth electrode.Thereby the potential safety hazard of step voltage around the minimizing earth electrode.
2, the present invention has overcome the plasma dissipation array repels, do not consume thundercloud thunderbolt energy mutually with thundercloud shortcoming to the way of charged thundercloud attraction above lightning rod, has reduced the potential safety hazard of shielding, has enlarged the scope of protection, protection reliability height.
3, the present invention has increased energy absorption device, also promptly increased the resistance of the approach of releasing of lightning rod system, reduced the thunderbolt leakage current, this little electric current, the thunderbolt energy consumption mode of high potential, make big electric current can not take place lightning rod thundercloud hit the situation of sudden strain of a muscle, reduced the probability of direct stroke.
4, the invention reside in the thunderbolt energy consumption on energy absorption device, when ground connection is bad, can reach lightning-arrest effect by the parameter of adjusting energy absorption device, so well prevented because of ground connection bad, and the earth point that causes sparking explosive incident, and the hidden danger of the life safety of the too high initiation of step voltage of earth point.
5, the present invention is less demanding to ground connection, can greatly reduce the cost that lightning rod is installed according to the simple ground connection of actual soil texture of installation site.
(4) description of drawings
Fig. 1 is the schematic diagram of the described lightning rod of embodiment.
(5) embodiment
The invention will be further described below in conjunction with embodiment, but protection scope of the present invention is not limited to this.
With reference to Fig. 1, a kind of lightning rod, comprise and draw thunder body 1, downlead 2, support bar 3, earth electrode 4, downlead 2 one ends with draw thunder body 1 and be connected, downlead 2 other ends are connected with earth electrode 4, earth electrode 4 ground connection connect, support bar 3 supports lightning rod, it is characterized in that the described energy absorption device 5 of connecting between thunder body 1 and the downlead 2 that draws, described energy absorption device 5 is a resistance, and described resistance is 10 ohm～100000 ohm, described energy absorption device 5 is a zinc oxide component, described energy absorption device 5 is zinc oxide component and resistance series connection, and described support 4 bars are made by corrosion resistant metal material, have certain intensity, the described thunder body 1 of drawing is made by metal material, becomes ball, cylinder or other help drawing the planform of thunder.
Adopt the lightning rod of said structure design; by drawing the electric charge opposite that the thunder surface produces with charged cloud layer; the principle of inhaling mutually according to the charges of different polarity; the thundercloud of protective top is attracted above lightning rod; responded to the same sex electric charge that repels each other by charged thundercloud; concentrate on the bottom of drawing the thunder body; pass through energy absorption device; downlead and the earth form the approach of releasing; whole electric charges of induction; promptly the energy of Gan Ying thunderbolt mainly with the form consumption of heat energy on this approach; wherein consume the thunder and lightning energy of most thundercloud on the energy absorption device; because the bleeder resistance of the whole approach of releasing of lightning rod system is bigger; the thunderbolt leakage current is not very big; what adopt is little electric current; naturally the mode of releasing of high potential; can not increase the probability of direct stroke; this mode be the major part consumption of thunder and lightning energy on the energy absorption device of lightning rod; with respect to the thunderbolt energy that only consumes fraction on the earth electrode; thunder and lightning position influence on the earth point is less; the harm that also is the step voltage around the earth electrode is less; therefore this lightning rod does not need good earth connection; the effect of ground connection only is that lightning rod is formed the approach of releasing by earth connection and the earth; when earth resistance is big; can suitably improve the resistance of energy absorption device; because most of energy of thunderbolt all is that loss is on energy absorption device; very high thunder and lightning position is arranged at energy absorption device top; and the thunder and lightning position of bottom is just lower; energy absorption device is positioned at the top of lightning rod; its space length over the ground can consumption of energy device generation air breakdown situation, potential safety hazard can not brought to the bottom protected object in too high thunder and lightning position, top.
This lightning rod generally is installed in the top of protected object; its setting height(from bottom) is determined according to the scope of protection; soil resistivity according to the lightning rod installation site; estimate the earth resistance that simple ground connection is installed; the resistance of selected energy absorption device or the model that zinc oxide component meets the lightning rod of earth resistance and power requirement, generally selected energy absorption device resistance are tens times of earth electrode resistance.
Claims (7)
1. a lightning rod comprises and draws thunder body, downlead, support bar, earth electrode, downlead one end with draw the thunder body and be connected, the other end is connected with earth electrode, earth electrode ground connection connects, and the they sup-port lightning rod is characterized in that the described energy absorption device of connecting between thunder body and the downlead that draws.
2. according to the described lightning rod of claim 1, it is characterized in that described energy absorption device is a resistance.
3. according to the described lightning rod of claim 2, it is characterized in that described resistance is 10 ohm～100000 ohm.
4. according to the described lightning rod of claim 1, it is characterized in that described energy absorption device is a zinc oxide component.
5. according to the described lightning rod of claim 1, it is characterized in that described energy absorption device is zinc oxide component and resistance series connection.
6. according to the described lightning rod of claim 1, it is characterized in that described support bar made by corrosion resistant metal material, have certain intensity.
7. according to the described lightning rod of claim 1, it is characterized in that the described thunder body that draws made by metal material, become ball, cylinder or other to help drawing the planform of thunder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100709732A CN101136544A (en) | 2007-08-23 | 2007-08-23 | Lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100709732A CN101136544A (en) | 2007-08-23 | 2007-08-23 | Lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101136544A true CN101136544A (en) | 2008-03-05 |
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ID=39160454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100709732A Pending CN101136544A (en) | 2007-08-23 | 2007-08-23 | Lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101136544A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095944A (en) * | 2010-12-08 | 2011-06-15 | 桐庐科瑞电子科技有限公司 | Precise prewarning system of direct stroke in protection range |
| CN112003126A (en) * | 2020-08-19 | 2020-11-27 | 宋喂 | Medium wave iron tower lightning arrester |
-
2007
- 2007-08-23 CN CNA2007100709732A patent/CN101136544A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095944A (en) * | 2010-12-08 | 2011-06-15 | 桐庐科瑞电子科技有限公司 | Precise prewarning system of direct stroke in protection range |
| CN102095944B (en) * | 2010-12-08 | 2013-04-03 | 桐庐科瑞电子科技有限公司 | Precise prewarning system of direct stroke in protection range |
| CN112003126A (en) * | 2020-08-19 | 2020-11-27 | 宋喂 | Medium wave iron tower lightning arrester |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20080305 |