A lightning rod is hard to resist, what does a powerful and awesome lightning look like?

One is black lightning, which is much more harmful than ordinary lightning, and it will be easy to produce **, the danger factor is extremely high, and there is also a ball lightning, which will be accompanied by some strange sounds when it appears under normal circumstances.

The lightning rod is difficult to resist, and the powerful and awe-inspiring lightning will appear a bright light, which is more of a kind of fear, and this lightning makes people feel very small, because this phenomenon will be accompanied by the release of energy, and will also produce a large amount of high temperature and current, which will cause serious damage to the human body.

Awesome lightning is actually a phenomenon of intense electrical discharge between clouds, between clouds and ground, or between parts of the cloud.

The common one is usually a line of lightning, which is like a tree branch with branches, meandering. Banded lightning is similar to linear lightning, except that the bright channel is wider and looks like a brighter bright band.

In the event of a lightning strike, when the high voltage released by the lightning approaches the ground, a concentrated electric field space will be formed, which will change the direction of the lightning, so that the lightning will discharge to it, and then the current generated by the lightning will be drawn out through the ground to the ground, so as to protect the building from lightning strikes.

Most buildings have a pointed building, which is a lightning rod. During the summer thunderstorm season, it can effectively avoid the danger of lightning strikes. So how do lightning rods protect buildings from lightning strikes?

<> in the process of lightning strike, when the high voltage released by lightning is close to the ground, a concentrated electric field space will be formed, which will change the direction of lightning, so that the lightning will discharge to it, and then draw the current generated by lightning to the ground through the ground, so as to protect the building from lightning strikes.

Procedure for installing lightning rods.

The anchor bolt is buried, and then the steel plate of the support seat is fixed, and a steel plate is mortgaged by welding. Then the lightning rod is erected, spot welded and corrected the position after standing up, and then the remaining three plates are welded. The down conductor is welded to the floor, and then the skin is cleaned and the surface is treated with anti-rust.

Precautions should be taken when installing lightning rods.

When choosing materials, be sure to choose galvanized metal materials, and protect the galvanized layer on the surface during installation. The top end should be made of galvanized pipe material or round steel. The diameter should be greater than 25, the thickness of the galvanized steel pipe wall should be greater than 3mm, and the length of the tip should be greater than 70cm.

The length of the lightning rod is about 3 and can be divided into two sections under the mountain, both up and down are meters, and the lightning rod of 4 meters is divided into three parts, the upper one is 1 meter, and the middle and lower are meters.

It must be installed in a vertical way, and the vertical error cannot exceed 3,000, and the anti-corrosion and anti-rust bag protection should be done after installation. According to the area and height of the building, sunlight and other conditions to install the lightning rod and determine the height, after putting into use, before the rainy season to check whether the welding of each part is firm.

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The lightning rod is higher than the surrounding buildings, and its tip is concentrated with a different charge, and the discharge current will flow into the earth through the lightning rod, which has a lightning protection effect.

Lightning is a natural phenomenon. Lightning is a phenomenon of intense electrical discharge between clouds, between clouds and the ground, or between parts of the cloud.

Clouds with vigorous internal movement (storm clouds, cumulonimbus clouds) generate electric charges, which are similar to static electricity in human clothing and hair;

The charge will attract different kinds of charge (positive charge or negative charge) and neutralize each other, if the attracted charge cannot be neutralized with the original charge because of a layer of insulation, it will accumulate on both sides, and when the accumulation reaches a considerable extent, it will break down the insulation discharge (charge neutralization), and the phenomenon of breaking down the insulation discharge is lightning.

When lightning strikes between clouds and the earth, it is called a lightning strike, a lightning strike.

The electric current flowing through buildings, people, trees, power poles, etc., can cause great damage. The process is divided into two parts:

instantaneous high temperature caused by the current formed by the charge surging towards the lightning when the charge is neutralized, and the burst it brings;

After the charge is neutralized, the remaining concentrated charge at the lightning strike (the earth can produce more charge than the clouds, and the clouds are no longer charged after the neutralization is completed) will quickly spread to the earth, and the damage caused is often greater than that of the charge neutralization, which is called a secondary lightning strike. Secondary lightning strikes are the main cause of damage to buildings.

There are roughly two types of lightning protection functions of lightning rods:

Needle-shaped lightning rod. Its mechanism of action is as follows:

Reduce the number of terrestrial charge concentrations. There is only a small place where the charges that make the earth attracted to the clouds gather. Reduces the energy of lightning strikes;

By taking advantage of the characteristics of tip discharge, the charge attracted by the cloud layer of the earth is released (neutralized) at a slower rate, so as to avoid accumulation to the extent of violent discharge;

Even if a lightning strike occurs. The current is released through the metal conductor of the lightning rod to avoid damage to the building, i.e. the surrounding personnel and facilities.

Mesh lightning rods (lightning nets). Its mechanism of action is as follows:

The charge must be concentrated to a certain extent before it can be discharged, and the charge is always attracted to the closest position (high place, protrusion), while the lightning net pulls the potential of the high place to the same as the ground. In this way, from an electrical point of view, the potential of the tall building is the same as that of the ground (flat), so that the charge is concentrated in the closest position (high place, protrusion) and causes lightning strikes;

Even if a lightning strike occurs. The current is released through the metal conductors of the lightning protection net to avoid damage to the building, i.e., the surrounding personnel and facilities.

Lightning is a phenomenon of electrical discharge, and lightning rods are electrostatic induction.

Lightning is a phenomenon of intense electrical discharge between clouds, between clouds and ground, or between parts of the cloud body (usually in cumulonimbus clouds).

When a thundercloud discharge approaches the ground, it distorts the ground electric field. At the top of the lightning rod, a space where the local electric field is concentrated is formed to influence the development direction of the lightning pilot discharge, guide the lightning to the lightning rod to discharge, and then introduce the lightning current into the earth through the grounding down wire and the grounding device, so that the protected object is protected from lightning strikes.

Lightning is the phenomenon of cloud discharge, and the lightning rod is caused by the principle of tip discharge.

The new lightning rod used in the United States today is shaped like a feather duster, and its center is a tube, and 2,000 thin wires lead out at the top, and the wires are radial, which can dispel the static charges gathered around the building, and has a strong ability to avoid the formation of lightning. The semi-conductor lightning suppressor invented by Professor Xie Guangrun in China is also a new type of lightning protection device. When a live cloud hangs over a building, the lightning suppressor emits a 1-meter-high corona spark that shoots straight into the clouds to neutralize the electricity in the sky.

In the event of a lightning strike, a switchgear on the lightning suppressor protects the building by blocking the huge current.

During thunderstorms, we sometimes see some towering trees being knocked down by lightning, while some of the surrounding towers, high-rise buildings and other high-rise buildings are unharmed. And under the same circumstances, the safety of high-rise buildings is probably due to lightning rods.

On many towers, there is something made of metal that looks like an embroidery needle and the needle stands upright, which is a lightning rod.

So, why does this thing that looks like an embroidery needle and does not look amazing have such a great "magic" and can "avoid lightning"? Originally, the lightning rod should be called "lightning rod". In a thunderstorm, when there are charged clouds over a tall building, a large amount of charge is induced on the lightning rod and the top of the tall building.

In this way, the lightning rod gathers most of the charge.

The lightning rod forms a capacitor with these charged clouds, and because it is sharp, that is, the area of the two poles of the capacitor is very small, and the capacitance is also very small, which means that it can hold very little charge. And it gathers most of the charge, so when there is more charge on the clouds, the air between the lightning rod and the clouds can be easily broken downBecome a conductor. In this way, the charged cloud forms a path with the lightning rod, which in turn is grounded.

A lightning rod can guide the electrical charges on the clouds to the earth, so that they do not pose a danger to high-rise buildings, ensuring its safety.

Because it is constructed to effectively conduct electricity, it is able to absorb the huge amount of energy in lightning.

The lightning rod leads a wire into contact with the ground, and he releases the tremendous energy of the lightning to the ground.

Because lightning is attracted by these tiny conductors, and then the lightning rod transmits the energy underground.

I think the main thing is to drain electricity to the ground, so that it can conduct electricity better.

At that time, it was because it was connected to the earth, and then all the energy was transferred to the earth.

Instead of absorbing the lightning, he released some electrons to channel the lightning into the earth.

They rely on their own steel attributes, and their own properties are that they can conduct electricity, so they will conduct electricity.

This should be the greatness of technology, it is the power to attract lightning, and it is highly conductive.

The lightning rod is made of special materials, and it has a special structure.

The lightning rod can be said to be a great invention, it can reduce people's losses to a certain extent, lightning has a characteristic is that it is easy to hit relatively high objects, and the role of the lightning rod is to attract the surrounding lightning to gather here when the lightning comes, and then the lightning will be transmitted to the ground through the lightning rod, so as to achieve a lightning effect. However, it is worth mentioning that the installation of lightning rods must meet certain requirements, and it is not possible to find unprofessional people to install them, if they do not meet the requirements, then the opposite effect may be achieved. This kind of lightning protection facility is more common in the city, but it has not yet been popularized in the countryside, so many places in the countryside will still have the problem of lightning strikes.

Although the lightning rod is called "lightning protection", it can actually lead lightning, it can attract the lightning that may hit the building to itself, and then transfer it to the ground with infinite resistance through the ground wire, so as to eliminate the damage of lightning and play the role of "lightning protection" for the building, so it is called a lightning rod.

The role of a lightning rod is to protect against lightning. Its principle is to direct lightning to discharge electricity towards the lightning rod, which directs electricity to the earth.

In fact, the role of lightning rod is precisely to guide lightning, and its original English meaning is also lightning rod, but because of the wrong translation, it will be known as a lightning rod by us.

The lightning rod is a lightning guide, which can play a role in guiding the surrounding lightning into the ground and play a protective role!

It doesn't seem like a hit problem, right?

The principle of a lightning rod is as follows.

In thunderstorm weather, when there are charged clouds above the high-rise building, the lightning rod and the top of the high-rise building are induced a large number of charges, because the lightning rod needle is the key tip of the car, and when the electrostatic induction, the conductor tip always gathers the most charge In this way, the lightning rod gathers most of the charge The lightning rod forms a capacitor with these charged clouds, because it is sharper, that is, the area of the two pole plates of this capacitor is very small, and the capacitance is very small, that is to say, it can hold very little charge and it gathers most of the chargeTherefore, when there is more charge on the cloud, the air between the lightning rod and the cloud layer is easily broken down and becomes a conductor In this way, the charged cloud layer forms a passage with the lightning rod, and the lightning rod is grounded again The lightning rod can guide the charge on the cloud layer to the earth, so that it does not pose a danger to the high-rise building, and ensures its safety and closure.