CN203434296U - Lightning protection grounding body - Google Patents
Lightning protection grounding body Download PDFInfo
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- CN203434296U CN203434296U CN201320542552.6U CN201320542552U CN203434296U CN 203434296 U CN203434296 U CN 203434296U CN 201320542552 U CN201320542552 U CN 201320542552U CN 203434296 U CN203434296 U CN 203434296U
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- lightning
- grounding body
- proof grounding
- lightning protection
- proof
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Abstract
The utility model provides a lightning protection grounding body, which comprises a body of the lightning protection grounding body, wherein the internal of the body of the lightning protection grounding body is provided with a conductive core, the external is provided with a protecting sleeve, two ends of the body of the lightning protection grounding body are provided with connecting joints, the conductive core consists of one or a plurality of nickel-containing stainless steel wires, and the protecting sleeve is a conductive protecting sleeve woven by graphite filaments. The lightning protection grounding body has the advantages of simple structure, convenient application, corrosion resistance, aging resistance, and high strength and toughness.
Description
Technical field
The utility model relates to shocking preventing technology field, relates in particular to a kind of lightning-proof grounding body.
Background technology
In the design of overhead transmission line, lightning Protection Design is a key factor that determines transmission line reliability.Because transmission line distributes very wide, be located in wilderness, continuous several hundred kilometers, be easy to be struck by lightning, in causing numerous reasons of transmission line malfunction trip-out rate, the tripping operation number of times being caused by thunderbolt generally accounts for the more than 50% of total tripping operation number of times according to statistics, occupies first of all trip reasons, especially the area strong at lightening activity, soil resistivity is high, with a varied topography, transmission line of lightning strike and the rate of failure that causes is higher.
The earth resistance that reduces tower grounding device is a very important measure that improves line lightning resisting level, 21 years tripping rate with lightning strike of new Hangzhoupro 220KV circuit that Zhejiang electric power experimental study proposes change statistics and show, " improving ground connection is the most effective lightning protection corrective measure ".The < < of Guo Wang company overhead transmission line management regulation (trying) > > is to be less than 0.315 time/hundred kilometers years to the management objectives of 220KV overhead transmission line thunderbolt trip-out rate.According to calculating, make the tripping rate with lightning strike of 220KV transmission line reach this target, except suitable reinforcement line insulation, also must be down to below 10 Ω the impulse earthed resistance of 220KV circuit overwhelming majority shaft tower.In the earth, burying lightning-proof grounding body underground lightning current is leaked into the earth, can effectively reduce the impulse earthed resistance of shaft tower, is lightning protection method and the measure generally adopting both at home and abroad at present, and lightning-proof grounding body is device important in lightning protection facility.It is embedded in soil, is connected with shaft tower, lightning rod lightning arrester downlead, when lightning current passes through, its moment is leaked into the earth, makes protected installations and facilities and personnel exempt from the harm of the overvoltage surges such as direct lightning strike or induction thunder, overcurrent.The time that lightning current stops in earth electrode is shorter, and fail safe is larger, otherwise just produces potential safety hazard, causes lightning disturbance.
By investigation and relevant unit, provide according to showing, at present China's lightning-proof grounding body by wide popularization and application be zinc-plated iron-steel based article, account for the more than 99.7% of market.Copper facing, fine copper, alloy, resistance module and sintering carbon-point goods fall, because contaminated environment is serious, it is high to consume energy, waste material, in society, application quantity is less, these goods electric conductivities are good, but also all exist in various degree problem, as not corrosion-resistant in: representative zinc-plated iron-steel goods, easily get rusty, make earth resistance to raise to cause lightning disturbance, useful life short (about 3 ~ 5 years), renovate frequent, waste material, soil, funds are serious, and produce earth electrode consumption and also can discharge toxic waste liquid, contaminated environment, consumes energy high.Carbon-point product manufacture is complicated, it is high to consume energy, and contaminated environment is serious, and poor toughness, fragility are large, frangibility, and metal connecting line easy-to-rust damages, and installs and connects difficulty.
At present in the unit of the above-mentioned traditional lightning-proof grounding body of the every use of China, all puzzlement that is deeply subject to product problem and harm in various degree, but this problem cannot solve so far in China.The unique way of user is diligent inspection, diligent replacing, this method expense is large, waste material, soil, Zhe Yu China is energy-conservation, the industrial development policy of reduction of discharging, environmental protection, high production capacity does not conform to, and ，Yu China has a large population and a few land, the deficient national conditions of demoting of resource and the faster and better construction development strategy of national economy are runed counter to.
Chinese patent discloses a publication number for " CN 202695740 U ", and name is called the utility model patent of " lightning-proof grounding body ", and its inside of this patent is electrically conductive graphite core, the outside two-layer conductive jacket for being woven by electrically conductive graphite line; Its two ends are by clip or the clamping of constant force spring card, and the clip of two ends or wherein one end or constant force spring card extend the connector that the conductor wire under drawing with shaft tower or lightning arrester is connected.Although this patent is antiseptic effect to a certain extent, but whole lightning-proof grounding body inside itself is graphite core, outside is two-layer conductive jacket, although electric current can be drained in the earth, but by graphite line, weave the lightning-proof grounding body insufficient strength forming, easily rupture, especially when lightning-proof grounding body is recycled, cannot the lightning-proof grounding body remaining in the earth directly be extracted by external force, also need ground to excavate, what have even dislikes and avoids trouble, does not directly excavate, abandonment, in soil, causes the wasting of resources.
Summary of the invention
The technical problems to be solved in the utility model is for the existing weak point of prior art, provides a kind of simple in structure, easy to use, corrosion-resistant, anti-aging, also has the lightning-proof grounding body of higher-strength and toughness.
Technical solution of the present utility model is, following a kind of lightning-proof grounding body is provided, and comprises lightning-proof grounding body body, and described lightning-proof grounding body body interior is provided with conductive cores, and outside is provided with protective jacket, and described lightning-proof grounding body body two ends are provided with jointing.
Adopt above technical scheme, by the protective effect of protective jacket, inner conductive cores can be protected, prevent that the soda acid composition in soil from causing erosion to inner conductive core, improve the useful life of lightning-proof grounding body.
As preferably, described conductive cores is that one or more nickeliferous stainless steel wire forms.Adopt the technical program, can select the building form of conductive cores according to actual service condition, reduce production costs.
As preferably, the diameter of the every nickeliferous stainless steel wire of conductive cores that described many nickeliferous stainless steel wires form is 0.3 ~ 1mm.Adopt the technical program, can increase on the one hand the toughness of conductive cores, increase the intensity of conductive cores, guaranteed on the other hand good conductivity.
As preferably, described protective jacket is the conductive protection cover being formed by graphite fibre silk compilation.Adopt the technical program, the conductive protection cover that graphite fibre silk shuffling forms, not only can conduct electricity, and has good toughness, is difficult for being corroded by the soda acid composition in soil long service life.
As preferably, on described protective jacket, smear one deck flaky graphite layer.Adopt the technical program, be of value to further increase electric conductivity.
As preferably, described jointing is clamped on the two ends of lightning-proof grounding body by clip, and described jointing is provided with connecting hole.Adopt the technical program, the lightning current drainage wire that connecting hole can directly be provided with building or brandreth tower by bolt or other locking devices is connected, easy to operate, good connecting effect.
The beneficial effect of the technical program: this technical scheme be take graphite and made lightning-proof grounding body as raw material and be inertia, chemical stability is good, under normal temperature condition, be not subject to strong acid, highly basic and organic solvent and galvanic corrosion, non-corrosive, resistance stabilization, reach 30 years useful life, and the non-maintaining engineering that renovates, easily machine-shaping, product is without passivation and anticorrosion process, safe and reliable, can be extensively in acidity, basic soil and high resistance, low resistance soil and seabeach, wetland, torrid areas, cold district is used, be not subject to the restriction of amblent air temperature condition, and energy-saving and emission-reduction, environmental protection, save material, funds, soil, these product are worth without recycling, can effectively solve easily stolen problem of current China metal lightning protection grounding polar body, this novel product can be used as the economical lightning protection new material of a kind of long acting green and uses.
This technical scheme is the application in electric power system as lightning protection new material, meet that China is energy-conservation, the industrial development policy of reduction of discharging, environmental protection, high production capacity, have a large population and a few land with China, the deficient national conditions of demoting of resource and the development strategy of building a conservation-minded society be consistent, and has economic benefit and important actual application value widely.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of conductive cores while being a nickeliferous stainless steel wire.
Fig. 3 is the structural representation of conductive cores while being many nickeliferous stainless steel wires.
Shown in figure: 1, lightning-proof grounding body body, 2, conductive cores, 3, protective jacket, 4, jointing, 5, graphite linings, 6, connecting hole.
Embodiment
For ease of explanation, below in conjunction with accompanying drawing, the lightning-proof grounding body of utility model is elaborated.
Embodiment mono-: as shown in Figures 1 and 2, a kind of lightning-proof grounding body, comprise lightning-proof grounding body body 1, described lightning-proof grounding body body 1 inside is provided with conductive cores 2, described conductive cores 2 is that a nickeliferous stainless steel wire forms, the diameter of nickeliferous stainless steel wire is 5 ~ 10mm, outside is provided with protective jacket 3, protective jacket 3 is the conductive protection covers that formed by graphite fibre silk compilation, on this protective jacket 3, also smear one deck flaky graphite layer 5, graphite linings 5 is dispersed throughout in the gap of graphite fibre silk on the surfaces externally and internally of protective jacket 3 and protective jacket 3 that braiding is made, more be convenient to conduction, described lightning-proof grounding body body 1 two ends are provided with jointing 4, jointing 4 is clamped on the two ends of lightning-proof grounding body body 1 by clip, described jointing 4 is provided with connecting hole 6, the aperture of connecting hole 6 is 10 ~ 20mm.
Embodiment bis-: as shown in Figure 1 and Figure 3, a kind of lightning-proof grounding body, comprise lightning-proof grounding body body 1, described lightning-proof grounding body body 1 inside is provided with conductive cores 2, described conductive cores 2 is that many nickeliferous stainless steel wires form, conductive cores 2 overall diameters that form are 5 ~ 10mm, wherein the diameter of every nickeliferous stainless steel wire is between 0.3 ~ 1mm, outside is provided with protective jacket 3, protective jacket 3 is the conductive protection covers that formed by graphite fibre silk compilation, on this protective jacket 3, also smear one deck flaky graphite layer 5, graphite linings 5 is dispersed throughout in the gap of graphite fibre silk on the surfaces externally and internally of protective jacket and protective jacket 5 that braiding is made, more be convenient to conduction, described lightning-proof grounding body body 1 two ends are provided with jointing 4, jointing 4 is clamped on the two ends of lightning-proof grounding body body 1 by clip, described jointing 4 is provided with connecting hole 6, the aperture of connecting hole 6 is 10 ~ 20mm.
Lightning-proof grounding body manufacturing process described in the technical program is polluted few; stable performance; not perishable; can without under maintenance state, move for a long time; avoided wastage in traditional material manufacture process, contaminated environment, power consumption high, useful life is short, perishable; need the shortcomings such as running check maintenance, for guaranteeing that power system safety and stability, environmental protection, economic benefit are significant.
In the above-described embodiments, preferred forms of the present utility model is described, obviously, under inventive concept of the present utility model, still can make a lot of variations.At this, should illustrate, any change of making under inventive concept of the present utility model all will fall in protection range of the present utility model.
Claims (6)
1. a lightning-proof grounding body, comprise lightning-proof grounding body body (1), it is characterized in that: described lightning-proof grounding body body (1) inside is provided with conductive cores (2), and outside is provided with protective jacket (3), described lightning-proof grounding body body (1) two ends are provided with jointing (4).
2. lightning-proof grounding body according to claim 1, is characterized in that: described conductive cores (2) is one or more nickeliferous stainless steel wire formation.
3. lightning-proof grounding body according to claim 2, is characterized in that: in the conductive cores (2) that described many nickeliferous stainless steel wires form, the diameter of every nickeliferous stainless steel wire is 0.3 ~ 1mm.
4. lightning-proof grounding body according to claim 1, is characterized in that: described protective jacket (3) is the conductive protection cover being formed by graphite fibre silk compilation.
5. lightning-proof grounding body according to claim 4, is characterized in that: on described protective jacket (3), smear one deck flaky graphite layer (5).
6. lightning-proof grounding body according to claim 5, is characterized in that: described jointing (4) is clamped on the two ends of lightning-proof grounding body body (1) by clip, and described jointing (4) is provided with connecting hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320542552.6U CN203434296U (en) | 2013-09-03 | 2013-09-03 | Lightning protection grounding body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320542552.6U CN203434296U (en) | 2013-09-03 | 2013-09-03 | Lightning protection grounding body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203434296U true CN203434296U (en) | 2014-02-12 |
Family
ID=50063316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320542552.6U Expired - Fee Related CN203434296U (en) | 2013-09-03 | 2013-09-03 | Lightning protection grounding body |
Country Status (1)
| Country | Link |
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| CN (1) | CN203434296U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985976A (en) * | 2014-05-09 | 2014-08-13 | 广西南宁百兰斯科技开发有限公司 | Gear type anti-thunder grounding body |
| CN104269203A (en) * | 2014-10-27 | 2015-01-07 | 武汉大学 | Metal fiber core low-resistance graphite yarn and preparation method thereof |
| CN104464874A (en) * | 2014-12-25 | 2015-03-25 | 武汉大学 | Graphite composite grounding material for cathode protection and manufacturing method thereof |
-
2013
- 2013-09-03 CN CN201320542552.6U patent/CN203434296U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985976A (en) * | 2014-05-09 | 2014-08-13 | 广西南宁百兰斯科技开发有限公司 | Gear type anti-thunder grounding body |
| CN104269203A (en) * | 2014-10-27 | 2015-01-07 | 武汉大学 | Metal fiber core low-resistance graphite yarn and preparation method thereof |
| CN104464874A (en) * | 2014-12-25 | 2015-03-25 | 武汉大学 | Graphite composite grounding material for cathode protection and manufacturing method thereof |
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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: 20140212 Termination date: 20170903 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |