CN1312044A - Serial body protecting lightning arresters - Google Patents
Serial body protecting lightning arresters Download PDFInfo
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- CN1312044A CN1312044A CN 01115568 CN01115568A CN1312044A CN 1312044 A CN1312044 A CN 1312044A CN 01115568 CN01115568 CN 01115568 CN 01115568 A CN01115568 A CN 01115568A CN 1312044 A CN1312044 A CN 1312044A
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Abstract
The present invention provides a set of lighning-protection series articles for human body, including lightning-protecting umbrella, lightning-protecting shoes, lightning-protecting cap and lightning-protecting clothes. The above-mentioned lightning-protecting articles are made up by using high-insulativity materials, such as polyethylene plastics, electric rubber, polytef, nylon pipe and insulating paint cloth, etc. Said invented raw materials are easily available, its production method is identical to that of general clothes, shoes and cap, so that it is easy to popularize.
Description
The invention belongs to the shocking preventing technology field and be particularly related to human body lightning protection apparatus
The thunder and lightning disaster causes tens of thousands of people's injures and deaths to the mankind every year, and wherein death toll surpasses 3000 people.China is thunder country more than, according to the thunder calamity example of China Meteorological Administration lightning protection management office compilation: dead 421 people of thunder calamity in 1998, dead 227 people of thunder calamity in 1999.According to Guangdong Province's incomplete statistics, in the period of the 1996-1999 four, the thunder calamity is with a toll of 699 people.Pressed down only 1993-1996 near a river the Zijin County, Guangdong, and this town is by three about 1.5km of directorial area along the river
2Scope in killed 23 people by thunder.The condition of a disaster is startling, and the masses hear Lei Sebian.Because these people's injures and deaths occur in the field mostly, can not adopt lightning rod, the into faraday cup of also can't hiding.But the thundery sky children will go to school, the peasant will till the land, the workman will go to work, the soldier will go on patrol; how not troubling? because people generally believe; lightning voltage is up to tens million of volts; electric current is up to hundreds thousand of amperes; it is very difficult will taking measures to protect personal safety in the open air; therefore few people consider this problem, also do not find this class protective articles both at home and abroad.I have analyzed the personnel casualty accidents that hundreds of calamities of clearing or sweep mines cause, and find to take some safeguard procedures, and most injures and deaths are avoidable.
Below by the analysis of causes that thunderbolt is caused casualties so that necessity of the present invention and possibility to be described:
First important physiological effect of thunderbolt causing death is that human heart stops blood supply, and this is thunderbolt causing death's main danger, and heart stops blood supply and is decided by current strength and electric shock duration by heart.Do much actually electric currents cause death by people's physical efficiency? the accurate data of neither one, but some data can reference.At first see human body resistance.Human body resistance is non-linear, descends along with the rising of applied voltage, and the resistance under the pulse of 50Hz power frequency and lightning current is also different, studies lightning disturbance usually, many human body resistance is taken as 500 Ω to 1000 Ω.
Cater in 1969 and Moley have just cut down the live body thigh that comes with the 500V power current by one, and recording its resistance is 350 Ω.Is much actually by the electric current of human body safe? safe voltage 36V with power frequency is an example, and then the safe current by human body is safe voltage/human body resistance ≈ 36ma.It is to make breath stopped that the thunderbolt causing death gets second physiological effect, and this class is received and is struck by lightning to such an extent that personnel often can come by the artificial respiration rescue.
Cause people's injures and deaths from above-mentioned two kinds of thunderbolts and get situation, if can prevent or reduce lightning current by human brain respiratory center and heart, the casualties that the thunder calamity causes just can significantly reduce.
Thunderbolt is hurted sb.'s feelings and is roughly had four types, and promptly step voltage, contact voltage, side are launch aed surprise attack and direct stroke.
1 step voltage.Step voltage is meant the electrical potential difference of people's bipod across the earth between the 0.8m distance.When thunder and lightning lands in distance people 50m scope, lightning current just may produce very high step voltage by ground between people's two legs, and its value has kilovolt, but generally the highest can be above ten thousand volts of 5-6.This voltage is added in the injures and deaths that human body just can cause the people.
Below just with the lightning current of a 150KA, drop on apart from the place of 5 meters of human bodies, soil resistivity is the analysis of voltage under the situation of 1000 Ω/m:
After thunder and lightning landed, electric current was to all the winds wandering, and the electric current that flows to the human body direction is
The step voltage that the ground surface that this current flowing resistance rate is 1000 Ω/m produces should be 3 * 1000 * 0.8=2400V
This step voltage is more much smaller than our voltage of the imagination.Because electric resistance of soil is very uneven, particularly the foot of the hill and river bank electric resistance of soil difference are very big, and what have differs tens times, even tens times possibility has, and therefore this step voltage fully may be up to ten thousand volts of 5-6.
Several kilovolts of step voltage harm to several ten thousand volts are still very big as can be seen from last surface analysis.
But from the level that present insulating materials reaches, this harm is still avoidable fully, is the key property of some insulating materials that can be used for taking shelter from the thunder below.
| Title material | Breakdown strength KV/cm | Relative dielectric coefficient ε | Resistivity |
| Air | ????33 | ????1.00058 | ????10 18 |
| Varnished cloth | ????300-400 | ????10 12-10 16 | |
| Electrician's typical thin films | ????400-2100 | ????1.8-3.2 | ????10 13-10 19 |
| Phenolic laminated sheet | ????120-330 | ????10 12-10 13 | |
| Electrical rubber | ????100-400 | ????2.1-13 | ????10 10-10 17 |
| The polyvinyl chloride plastic cement | ????450 | ????3.1-3.5 |
If with the special antimine shoes that becomes high insulation of above-mentioned insulating materials, then two footwear step voltages of resisting several ten thousand volts are avoidable fully to the injury of the person.
Step voltage causes the injury of the person, and is more much bigger than the chance that direct stroke, contact voltage, side are launch aed surprise attack.Therefore solved the injury of step voltage, just can significantly reduce of the injury of thunder calamity human body to human body.
2 contact voltages.The regulation of contact voltage is the downlead of 1.8m eminence and the voltage between the ground.People's pin stands in apart from downlead 0.8m place, and when contacting the metal downlead with hand, people's hand and the voltage between the pin are exactly contact voltage.
By the object electric current in the thunderbolt is very large, is example with the 150KA electric current equally, and downlead is generally two usually, and the electric current that flows through every downlead is 75KA, is 1 Ω if flow through the resistance of 1.8m metal downlead, and then contact voltage also can be up to 7,050,000 volts.
This contact voltage is equivalent to that thunderbolt produces at the 0.8m place of human body, so its probability is more much smaller than the step voltage, but danger is much bigger.
3 sides are launch aed surprise attack.Side is launch aed surprise attack and is meant that the people is in (generally in the 2m scope) near the thunderbolt point, the high voltage of lightning current by being produced by the thunderbolt object, puncture the people and, launch a surprise attack the head or the shoulder of human body, make lightning current go into ground through both feet by human heart by the air between the thunderbolt object.Therefore this voltage is general also very high, and is similar with contact voltage, prevents that method is also identical with contact voltage, if put on the lightning protection clothing, put on anti-primer pouch, that then launch as surprise attack may will significantly reduce.
4 direct strokes.Thunder and lightning directly hits human body, and this all is difficult to be avoided injures and deaths with any method.But but can significantly reduce the generation of direct stroke with the lightning-arrest method of insulation.Because thunder and lightning always by the passage of resistance minimum go into ground.If the people stamps the lightning protection umbrella, puts on the lightning protection clothing, puts on anti-primer pouch, puts on antimine shoes, the insulaion resistance of whole human body passage will increase greatly, and thunder and lightning has been gone into ground with regard to not attacking the person from the little place of resistance.
Prior art does not still have such as antimine shoes, lightning protection umbrella, anti-primer pouch and the appearance of lightning protection clothing at present.
The purpose of this invention is to provide serial body protecting lightning arresters such as antimine shoes, lightning protection umbrella, anti-primer pouch and lightning protection clothing.
Technical solution of the present invention: serial body protecting lightning arresters adopts the insulating materials such as the polyethylene of high resistance and high breakdown field strength without exception, and electrical rubber varnished cloth etc. is made.
Beneficial effect of the present invention:
(1) human body thunder and lightning series protection apparatus material of the present invention is easy to get, makes simple
(2) people dress conveniently, can prevent effectively to be struck by lightning in the field
Description of drawings: 1. Fig. 1 is a lightning protection umbrella schematic diagram
2. Fig. 2 is the antimine shoes schematic diagram
3. Fig. 3 is anti-primer pouch schematic diagram
4. Fig. 4 is a lightning protection clothing schematic diagram
Below in conjunction with description of drawings embodiment:
1 antimine shoes.Antimine shoes be most important in the lightning strike protection articles for use, that use is maximum is a kind of, its profile is similar to sneakers, make with 1-2cm thick vinyon or electrical rubber its bottom.Poly specific insulation Pv＞1014 Ω m, breakdown field strength E=18-28Mv/m.Insulating varnished cloth can be used in all the other positions.The edge of footwear goes out 0.5-1 centimetre than upper of a shoe is wide all around, to guarantee that the electric current by health must be through the bottom of insulation to ground.
2 lightning protection umbrellas.Beat the thunderstruck example of umbrella and taken place a lot ofly, the handle and the supporter common metal of general umbrella are made, and subject to be struck by lightning; The handle and the supporter of lightning protection umbrella of the present invention are all made with nylon tube or polychlorostyrene tetrafluoroethene pipe, cover insulating varnished cloth (5.5～10KV/0.15mm) or the silk that insulate above.The diameter of umbrella is about 100 centimeters.The not only rainproof but also lightning protection of this umbrella.
3 anti-primer pouches.Its profile is the same with motorcycle helmet.The helmet is made with polytetrafluoroethylene (PTFE) or fiberglass.The electrical rubber of the about 0.3cm of its internal spray one bed thickness.Main for can not with the people of umbrella (as by motorcycle, bicycle) use.
4 lightning protection clothing.The lightning protection clothing is the same with common raincoat, but its shoulder and chest and back all use the varnished cloth of high insulating materials or insulating silk's cloth to make, and notices during making that the coupling part all adopts bondingly, not allowing perforation and existing.
Claims (5)
1. serial body protecting lightning arresters comprises lightning protection umbrella, antimine shoes, anti-primer pouch and lightning protection clothing, it is characterized in that all making of the insulating materials of high resistivity and high breakdown field strength.
2. the lightning protection umbrella of serial body protecting lightning arresters according to claim 1, it is characterized in that: handle of umbrella adopts nylon tube or polyfluortetraethylene pipe to make, and covers insulating varnished cloth or insulation silk above.
3. the antimine shoes of serial body protecting lightning arresters according to claim 1; it is characterized in that: the bottom adopts vinyon or electrical rubber to make; and the edge of footwear goes out 0.5-1 centimetre than upper of a shoe is wide all around, and other positions can make of insulating varnished cloth or insulating silk's cloth.
4. the anti-primer pouch of serial body protecting lightning arresters according to claim 1 is characterized in that: adopt polytetrafluoroethylene (PTFE) or fiberglass to make its internal spray one deck electrical rubber.
5. the lightning protection clothing of serial body protecting lightning arresters according to claim 1 is characterized in that: adopt insulating varnished cloth or insulating silk's cloth to make, and the junction is all adopted bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01115568 CN1312044A (en) | 2001-04-29 | 2001-04-29 | Serial body protecting lightning arresters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01115568 CN1312044A (en) | 2001-04-29 | 2001-04-29 | Serial body protecting lightning arresters |
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| Publication Number | Publication Date |
|---|---|
| CN1312044A true CN1312044A (en) | 2001-09-12 |
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ID=4662064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01115568 Pending CN1312044A (en) | 2001-04-29 | 2001-04-29 | Serial body protecting lightning arresters |
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| Country | Link |
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| CN (1) | CN1312044A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527503A (en) * | 2014-12-12 | 2016-04-27 | 国家电网公司 | Detection method for internal and external electric field intensities of shielding clothes of live-line worker |
| CN106690624A (en) * | 2015-11-15 | 2017-05-24 | 青岛世纪云帆实业有限公司 | Multipurpose cap with arrester |
| CN110269310A (en) * | 2019-03-13 | 2019-09-24 | 国家电投集团西安太阳能电力有限公司 | A kind of power construction safety suit |
-
2001
- 2001-04-29 CN CN 01115568 patent/CN1312044A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527503A (en) * | 2014-12-12 | 2016-04-27 | 国家电网公司 | Detection method for internal and external electric field intensities of shielding clothes of live-line worker |
| CN106690624A (en) * | 2015-11-15 | 2017-05-24 | 青岛世纪云帆实业有限公司 | Multipurpose cap with arrester |
| CN110269310A (en) * | 2019-03-13 | 2019-09-24 | 国家电投集团西安太阳能电力有限公司 | A kind of power construction safety suit |
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Addressee: Jiang Mingli Document name: Notice of first review |
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