Many drivers have encountered the problem of an unexpected “charge of vigor” from the car when leaving and touching the door. The palms and fingers receive an unpleasant charge of static current, which accumulates on the driver himself or on the car. This problem causes certain inconveniences, because it is impossible to avoid touching the body when closing the doors. Sometimes drivers simply begin to close the door with their bodies or even with their feet, which can backfire for paintwork.
It is worth considering the most popular reasons why the machine is electric, and how you can deal with such an unpleasant situation. Often, the car owner manages to remove this effect on his own, without contacting the service station with a request for diagnostics or repair of electrical equipment.
The main causes of electric shocks from the car body
There are several options for accumulating the charge on the driver or on the car. Let's say right away that the version popular on the net that the charge is gained from air friction over the car body is false. This theory says that the dirtier your car is, the more static it picks up as you drive. Most likely, the myth was invented by some car wash owners, since the degree of pollution of the car does not affect the set of static charge in any way.
The real reasons that can cause such a charge to accumulate and then return to your fingers are quite simple. And eliminating them will also not be difficult. Typically, car owners face this case with the following problems:
- the driver's clothes are rubbed against synthetic covers, a static charge arises on the driver himself;
- the electricity system in the car is faulty, there are breakdowns on the body that cause static current discharges;
- there is no output of static energy using antistatic tapes and other tools.
Even if the covers in your car are not synthetic, the clothes are made of natural materials, and the car's electrical system is fully functional, a build-up of static charge is possible for other reasons. Even wheel spin and contact brake discs with pads create a certain charge. So you need to make sure that the car has a certain discharge path.
It is necessary to equip any car with antistatic. Special requirements for this option protection against charge accumulation are facing a specialized trucks, which transports explosive substances. But also civilian car such protection would not hurt.
How to properly equip an antistatic agent in a car?
The first option for protection against electric shocks in a car is common remedy antistatic agent to be sprayed on seats and clothing. With this, you will reduce the likelihood of a charge accumulating directly on the driver or passengers. If this does not help, you should proceed to the next steps.
Checking the electrical system of the car will also not be superfluous. The charge can be given to the engine faulty spark plugs, which pierce the spark directly on the body of the engines, as well as punched high voltage wires. It is worth keeping the engine itself clean, because the charge can be transferred through a layer of adhering liquid. But the main method of getting rid of static current in a car is to organize the following protection options:
- special antistatic tapes to remove static charge from the body;
- For big cars With heightened danger fire or explosion use antistatic circuits made of metal, which is an excellent conductor of current;
- sometimes a ground wire is used as an antistatic agent, which is attached to the body with a terminal, and the second edge is cut off, allowing the wires to drag along the ground.
Of course, the most convenient option is to use anti-static rubber bands that are attached to the rear of the car body and do not spoil appearance. But their production requires expensive conductive rubber. This makes the cost of tapes quite high, because there are a huge number of fakes on the market. To avoid such fakes, choose expensive rubber anti-static tapes from well-known manufacturers.
Many drivers buy rubber bands with wire inside. Such a way out of the situation helps to get rid of static charges only for a certain time, because the wire quickly rusts or oxidizes and ceases to perform its functions. It is also important that the tape is not screwed to the bumper, but to the metal part of the body. In this case, the paint at the attachment point must be cleaned to metal.
True, there are tips in the style of "life hack" from Internet users, as in the following video:
Summing up
You can remove the unpleasant effect of static current discharges from a car with your own hands without spending a lot of time and money on it. It is important to make sure that it is fully functional. electrical system car, and then ensure that the accumulated energy is discharged through antistatic tapes. To do this, you need to purchase high-quality devices that will really drain the charge, and not just drag along the asphalt behind the car.
By applying all of the above tips, you can forget that the machine is beating with current. Have you been in a similar situation in your life, and how did you solve a similar problem?
Electricity has long and firmly entered our lives. Once becoming our very best and indispensable assistant, it is so merged with us that we no longer notice it. And in vain.
Electricity is still a natural element, often showing us its cool character. But, nevertheless, one should not unequivocally regard such meetings with him as dangerous situation. Human knowledge is quite enough to understand the essence of such phenomena and protect yourself and others from them.
Unexpected Discharge
Fortunately, the consequences of careless handling of electricity are not always tragic, but no less unpleasant. Surely many might have noticed that sometimes the car is shocked when you get out of it. This happens especially often if the driver or passenger is dressed in new clothes or wears things made of synthetic fabric.
Besides the fact that the sensations received at the same time are rather unpleasant, it can be quite dangerous. Having received such an unexpected blow, you can even drop the object that is in your hand. In addition, pain can be significant in people who are highly sensitive to electric current.
It is necessary to immediately calm especially nervous and excitable people. The resulting discharge does not pose a danger to humans.
The machine "beats" current due to the resulting discharge static electricity. It may arise from the following reasons: due to electrification car body, as well as the clothes of the driver himself or passengers who were in the cabin, when they interact with. At the same time, at lower air humidity, the process occurs more intensively.
Where did it come from
Static electricity is essentially a violation of the balance of electrons in the atoms of interacting substances. That is, when two dielectrics come into contact, friction, in our case, the driver’s clothing made of synthetics and the same seat upholstery can be an example, the charges are redistributed between them and, as a result, static electricity occurs.
If there are no further changes in the current situation, this charge may persist for quite some time. That is why it got its name: static, that is, permanent. But the driver, sooner or later, will leave the car, here the waiting charge shows its insidious essence.
When the dielectrics separate, a discharge of static electricity occurs. It is he who feels the person who touched the metal door or car body. Similar situation occurs quite frequently. Such a thing in everyday life is sometimes annoying, but does not cause fear. There is no cause for concern with the car either. You just need to understand that it is safe and know how to deal with it.
Where can charge occur?
Since contact, and hence interact, can be any surface. That and the charge of static electricity can occur in many places in the car. The principle of its occurrence is always the same, the result is the same: a sudden “electric shock”.
body static charge
Electricity on the body can occur when the car is moving and rubbing against the air. If anyone remembers physics lessons at school, he will notice that it is similar to how an ebonite stick is electrified when rubbing against cloth. However, this can happen not only while the car is moving, but also when it is exposed to wind for a long time.
The most favorable conditions for the formation of a charge: dry and hot weather with a stable constant wind.
In this case, a static charge, up to thousands of volts, may arise on the body. According to the laws of physics, charge accumulates on the surface of the car, while the electric field strength in the car interior remains equal to zero. In this case, the driver or his passengers, who are at this time inside the cabin, the so-called "electric shock" is not terrible. With a large accumulation of charge on the body, the electric field strength may be sufficient for a spark to arise and jump through a gap of a couple or three centimeters.
That is why you can usually feel the discharge even when you bring your hand to the body. This happens when the driver or passenger has just got out of the car and wants to close the door. Or vice versa, when they open the door to get into the car. The breakdown of a spark accompanies the "flow" and equalization of the charge of the electrical potentials of a person and a car body.
Charge on clothes and seat
The absence of a charge on the body does not always mean ridding the owner of the car from electrostatic charges. Clothing can also be electrified by rubbing against seat covers and upholstery, especially if they are made of synthetic materials or wool. The result of this interaction is the accumulation of a significant electric charge in the car.
When a person wants to get out of the car and stretches out his hand to her, a spark is formed and the charge “flows” onto the body. In this case, it is possible to “catch a spark” due to the fact that the clothes are electrified. Sometimes this can happen inside the car, you just need to take one of the metal parts with your hand (for example, to the handbrake lever).
How to protect yourself from static discharge
Protecting yourself and saving your fellow travelers from the effects of automobile "lightning" is quite simple. It is only necessary to ground the car body with a strip coated with a special antistatic compound. You can also use a special "tactic" of getting out of the car.
To ground the body, it is effective to use only strips with a conductive filler. Most often, manufacturers use graphite, aluminum powder.
Other materials can be used, or even flat with wire inside. In the course are also home-made "gum bands", which are made from scraps car camera. However, it is useless to cling them to the body, they are not suitable in this case.
You can reduce the electrification of seat covers and clothing by treating them with a special antistatic aerosol.
them in enough produces and domestic industry and imported products are also sufficient.
Experienced motorists offer the easiest way to deal with this problem. A fairly simple solution that does not require effort or cost. It is necessary, when leaving the car, to touch the key with the key car body. Thus, the neutralization of the static charge occurs and therefore this impact will not occur while touching.
But this solution to this problem is only suitable for a driver who has a key. But what about passengers who do not have metal objects with them. The answer is simple and on the surface: you just need to touch the body of the machine reverse side palms. Arises reasonable question: why exactly with the back of the hand. This is because the skin here has a higher resistance. So simple action it simply equalizes the electrical potential between the human body and the car body without tangible effects. After that, you can safely get out of the car and at the same time are not afraid to get an unexpected and unpleasant “prick” from the car.
You can reduce pain if you follow simple rules when exiting the car. When opening a car door, you need to take the metal part of the door with your hand, and not the handle covered with plastic. And just put your foot on the ground. Of course, this presents certain inconveniences: the body may be dirty, you will have to go out on half-bent legs, which is quite inconvenient, and the like. But, as they say, choose the lesser of two evils. You can reduce the degree of pain if you make it a habit to close the car door with a dressed part of the body, for example, an elbow, thigh or knee.
Conclusion!
As you know, the devil is not so terrible ..., and electric shock cars are not as scary as they seem at first glance. Small and not burdensome precautions will relieve pain and add comfort to travel. However, one must have the same attitude towards all things that are incomprehensible at first glance. Looking closely and learning more about them, you can understand how dangerous they are and what precautions are needed when meeting with them.
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There are more and more electrical appliances in cars every year. Various assistants, comfort devices and many other electrical consumers have become an integral part of the machine. Any car service specialist will tell you that the most difficult thing is to find a problem in the work electronic systems cars. If the fault is wiring related, it is very difficult to find the break point, since there are several thousand wires throughout the car.
At the same time, there are a number of problems that are not always associated with wiring, despite the fact that drivers sin on it. For example, if the car is electric, it is far from a fact that the problem is related to the wires and complex diagnostics of the car's electronic systems are required. Most often, the problem is much simpler, and within the framework of this article, we propose to consider what to do if the car is shocked.
Why is the car shocking
In the network of a car, the voltage is at a level of about 12 volts, largely for safety reasons. If the machine shocks a person, he will experience discomfort, but such a discharge will not lead to death or serious injury. But the electric shock of the driver from the side of the car most often does not occur from onboard system machines, but due to static electricity.
The most dangerous thing in hitting a car with a driver’s current is precisely the effect of surprise. It is difficult to predict whether the car will hit this or that time with the discharge of the driver who comes out of it or not. Due to unexpected impact, the driver may accidentally drop objects that he carries with him from his hands, which is quite unpleasant.
Important: If a person has an increased sensitivity to the effects of electric current, a blow may seem painful to him, but this does not make it more dangerous for the body.
If the car is electrocuted, it is not due to wiring problems, but due to static electricity that can be generated for one reason or another. In most cases, the problem occurs due to the electrification of the body, as well as the clothes of people inside the car in contact with seat covers or upholstery. It can be seen that in machines with leather interior the situation with the discharge of static electricity is much better.
To better understand the process of static electricity and driver impact, you need to understand the physical phenomenon in more detail. For example, if the driver's clothes are made of synthetics and the same material is used in the upholstery of the seat, then in this case they act as dielectrics. When they come into contact, the redistribution of charges begins, due to which static electricity is created. The charge will manifest itself at the moment when the separation of the dielectrics occurs, that is, when the driver gets up from the seat or touches the metal.
What to do if the car is electric
A static discharge can form on various details vehicle, and not just on the seat and clothing of the driver. Depending on where the static electricity occurs, the way to fix the problem will differ.
Electric shock to the body of the machine
During the movement of the car, electricity can be generated on its body due to the friction of metal on air. The problem can also manifest itself when the machine is at rest, for example, if a strong dry wind is blowing. On the car body, a charge can be formed, the power of which will reach more than a thousand watts.
The fact that it is the body that is electrified is indicated by a blow in the process of contact with it. outside. For example, if the driver gets into the car, he may receive an electric shock when he comes into contact with the door. Or, if a person gets out of the car, he may feel an electric shock when he closes the door and grabs a metal body element. In most cases, an electric shock can be felt even before the body part comes into contact with the metal.
To avoid static electricity on the body of the car, it must be grounded. This can be purchased at car shop a special antistatic strip that needs to be hung on the car body. This strip is a piece of rubber or similar material, inside which there is a wire, graphite or aluminum powder. You can make such a strip yourself if you have the necessary materials.
Note: Some drivers make ordinary rubber strips and hang them on the car body. Such protection will not help to cope with the problem.
It is worth noting that if it is not possible to hang a protection against static electricity on the machine body, but you do not want to feel the sensation of a current discharge on the skin, you can remove the charge before contacting the machine. To do this, while leaving the car, you need to touch the door with a metal key. This will neutralize the charge.
Electric shock inside the car
If the electric shocks are not due to the electrification of the body, the problem is most likely due to the creation of static electricity when tissues come into contact. Especially often this problem manifests itself if synthetics or animal hair come into contact.
In such situations, the charge accumulates inside the car, and it can manifest itself both when leaving the car during contact with the door, and directly inside the car. For example, a driver can be shocked when his hand touches the gear lever or handbrake - any metal part in the interior of the car.
To get rid of the formation of static current inside the car, it is necessary to treat the seats and other upholstery with special chemicals, which can be purchased at specialized stores on machines. It is worth noting that such products are produced in the format of a colorless aerosol, which will not leave stains on the upholstery after application, but can save the driver and passengers from the formation of static electricity for several months or even years when clothes come into contact with the upholstery.
Very often, drivers and passengers are faced with a situation where the car "shocks". Most often this happens when leaving the car. Moreover, the strength of electric shock often goes beyond the boundaries of ordinary tingling.
For people with cardiac diseases, even a small lesion electric shock can lead to fibrillation of the heart muscle, exacerbate the disease.
Possible causes of stress on the car body
The voltage between two points is the potential difference. In the case of a car, the situation in which the car is shocked occurs when a person simultaneously comes into contact with various parts of the body, clothes or shoes to body parts vehicle and ground potential.
This effect is especially noticeable in raw climatic conditions, since in this case the conductivity of the materials increases. In urban environments winter period this is also facilitated by the presence of salt impurities in road treatment products.
The main source of increased potential difference is a car. We will not consider the situation of a lightning strike, it is more related to climatic phenomena.
In order for the human body to feel the presence of an increased potential difference, a voltage of several tens of volts, a current of 10 milliamps is usually sufficient. In the practice of labor protection measures, a voltage of more than 40 volts is considered dangerous, and a current of more than 100 milliamps is considered deadly. In fact, these two quantities are related by Ohm's law.
Current equals voltage divided by resistance: I=U/R
Human resistance depends on many factors:
- the state of the mental system, the moment of emotional excitement (in these cases it decreases);
- the level of body sweating;
- the place between which the potential difference is applied;
- consumption of alcoholic beverages (also decreases).
The calculated value of the electrical resistance of a person in the normal state is about 100 kiloOhm. In the presence of all of the above aggravating factors, it decreases to 1000 ohms. In this case, a voltage of 40 volts can cause a current of 40 milliamps, and this is already dangerous for the body.
That is why the tension onboard network cars 12 Volts are selected, trucks - 24 Volts. In electric vehicles, the voltage of the power battery is much higher, it has special means protection.
Consider situations that can lead to the presence of increased stresses on the elements of the car body and interior.
1. Electrostatic stresses
Most common cause that the machine is energized. Electrostatic stress is formed as a result of friction of dielectric elements of various structures. From the course of physics, we remember the experiments when an ebonite stick became electrified when it was rubbed against silk, a plastic comb - about hair.
The car interior is stuffed various materials: plastic panels, floor covering, upholstery, chair covering and others. As a result of friction, decent potential differences can occur.
Electrostatic voltages are also formed when the clothes of the driver and passengers rub against the seats and plastic elements salon. From this point of view, clothing made from natural materials is safer.
Video - why the car is shocking when leaving the car and how to deal with this phenomenon:
Wheel friction on asphalt can also lead to an increase in the electrostatic potential of the car body. There are studies that have proven that electrostatic voltage is formed on the car body even at the time of parking due to the movement of air flows interacting with the body.
While the vehicle is moving, the speed air currents more, the electrization is higher, so the driver feels the strongest discharge at the moment of getting out of the car.
2. Breakdown of high-voltage wires and ignition coils of gasoline engines
From the point of view of harm to the human body, this problem is more serious. There have been deaths, especially when the person used pacemakers.
Voltage pulses, ignition coils reach 15 kilovolts or more. Many motorists know firsthand how strong a high-voltage discharge is. In most cases, it is not the striking impulse itself that is terrible, but the moment of a short-term loss of balance, self-control, consciousness, which can lead to a fall and blows.
3. Spark
Sparking itself in its pure form does not cause increased voltages if no inductance is included in the circuit. Even the relay winding, when the current is opened due to the phenomena of self-induction, can cause the voltage on the contacts to be increased by several tens of times.
4. Additional devices
The most dangerous are non-standard voltage converters for household appliances designed for 220 volt power supply. Charging device inverter type also have internal voltages of several hundred volts.
Along with painful phenomena, an electric spark is a dangerous factor in the ignition of gasoline vapors, an air-gas mixture. Therefore, in the presence of such situations, their causes should be investigated, measures should be taken to eliminate them.
Protective Measures Against Harmful Electrical Phenomena
The main protection measures include:
- electrostatic earthing switches;
- personal protective equipment;
- insulation;
- regulatory work.
Electrostatic grounding conductors are conductive strips of rubberized material attached to body parts. The strip has a length that allows it to come into contact with the ground, thereby diverting the electrical charge.
Some bodybuilders rightly believe that the traditional grounding of the negative electrical potential of the body causes additional corrosion due to the permanent effect of electrolysis.
We will not go into details, but it is more useful for a car from this point of view to ground a positive potential, that is, from the positive terminal of the battery. In this case, the rubberized conductive strip should be laid from the battery plus. Moreover, for electrostatic leakage, this is not significant.
As individual means protection, you can offer ordinary gloves, special antistatic sprays, rubber mats, individual selection of clothes and chair covers.
Some types of soundproofing materials have antistatic properties. They have coatings of foil materials that significantly reduce static charges.
Routine work related to the elimination of harmful electrical phenomena:
- cleaning the interior from dust;
- moisturizing the cabin with special equipment;
- periodic cleaning high voltage wires, checking the quality of wire insulation;
- V dark time days with disabled lighting fixtures check for sparks with the engine running under the hood.
Remember, the situation when the machine is energized should be immediately eliminated. Not only ride comfort depends on this, but also your safety.
Without electricity, it is difficult to imagine the life of a modern person. At the same time, becoming our friend, electric current can also be dangerous. This judgment does not apply at all to static electricity, but what if the machine is shocking? After all, static discharge brings little pleasant to both the driver and the passenger. This article will look at the main reasons why a car can be electrocuted and how to deal with this problem.
Causes of static electricity
If you believe the laws of physics, then static current is nothing more than the appearance of an imbalance between all the atoms that are in two interacting bodies.
During the friction of two bodies that do not pass an electric current, an example of which is the driver's clothing and the upholstery material of a car seat, a special redistribution of electronic charges occurs, after which static electricity occurs. In the future, if there are no changes in the position of the bodies, then the charge is stored for a sufficient for a long time, but the driver will not be able to drive the car all the time. Sooner or later, he will come out and touch the metal door of the car, and this is where the discharge of static current occurs. After the separation of two dielectrics, the same discharge occurs that a person feels.
Of course, there is nothing dangerous in this phenomenon. The magnitude of the charge is so small that there will be no damage to the human body. We only feel an unpleasant sensation, which immediately passes. Tighter accounts for people whose skin resistance is at the lowest level. They may even experience pain.
In other cases, a static charge is quite enough to disable any device on the vehicle's on-board network. The amount of charge will be quite sufficient.
Video - How to detect current leakage at a VAZ
Ways to deal with static electricity in a car
As mentioned earlier, this discharge of current does not pose a danger to humans, which is why many drivers leave this problem and try to simply ignore it. For others, this phenomenon is annoying in every possible way and patience ends sooner or later. This is where the search for solutions begins.
The car body is shocked - how to fix it?
In order to get rid of a static charge, you need to know where it can appear. The first most common source of static current may be. Static electricity can be generated while driving. The body is subjected to friction from the oncoming air flow, and therefore, is electrified. However, static charge buildup can also occur when the vehicle is parked in windy conditions.
The ideal condition for the occurrence of static is windy, dry and hot weather. A charge equal to approximately one thousand volts accumulates on the body. In the cabin, the tension magnetic field will be 0 volts, so everyone in the car is not in danger of such a blow. If the duration of exposure to the wind is long enough, then such a discharge is quite enough for a noticeable spark to jump between the human hand and the metal body of the car at a distance of about 2-3 centimeters. That is why, such an electric shock can be felt already at the moment when the hand has not yet fully reached the car body. This often happens when the driver gets out of the car and immediately closes the door. After the discharge, the potentials between the human hand and the body are equalized and when touched again, the impact no longer occurs.
So, the most economical option is a special tactic that involves a different way out of the car. Many install side window deflectors on the door frame. When leaving the car, to close the door, you can touch the plastic deflector and push it. In this case, the plastic does not conduct electricity and acts as an insulator that protects you from electric shock. Another option involves touching the body with the car key, so the current goes into the key and is neutralized, making the body safe. As for passengers, they can touch the body with the other part of the palm, as it has the highest resistance to electric current.
But if you do not have the appropriate pads, then you can use special anti-static strips that are attached to the bottom of the car. In their manufacture, special conductive materials are used: graphite or aluminum powder. These elements are used as grounding conductors, which simply discharge the electrified body and divert static current to the ground.
Many drivers, in terms of economy, use a regular rubber strip from a car camera. In fact, there will be no effect from such a home-made ground electrode, but you can try to stretch the wire through the rubber band and fix it on the metal body.
Car seats as a source of static charge
When the clothes come into contact with the seat, the charge is already received by the person’s clothes and after touching the iron case with the hand, the discharge occurs already towards the body. Thus, we again experience that unpleasant feeling that is an electric shock.
To get rid of static charge on clothes, you can use special antistatic agents, which are made in the form of sprays and applied to car seats. The other way is the most economical. You can try to change the seat covers to covers from a different fabric, as well as while driving to move around in other clothes that are not prone to electrification. In this way, you can also get rid of electric shocks against the car.
Perhaps these are all ways that help get rid of electric shocks on the car body. You can reduce the degree of pain that occurs when touching the iron parts of the car in other ways, the most basic ones that do not require you to special devices, skills and abilities.
