Protection of a person from exposure to electromagnetic radiation

Electromagnetic radiation is almost ubiquitous. Many people believe that electromagnetic radiation occurs only in electrical installations. But this is far from the case. Electromagnetic radiation haunts us everywhere: at home, at work, on the street. Sources of electromagnetic radiation, in addition to electrical networks, are almost all household appliances, including various electronic devices: television and radio equipment, mobile phones, gadgets and many other electrical appliances.

Even on the streets of the city, where there seems to be no electromagnetic radiation, the sources of such are electrified vehicles, electrical networks, street lighting networks, etc. Let's consider what effect some sources of electromagnetic radiation have on the human body.

Sources of electromagnetic radiation

To begin with, let's note such a parameter as the maximum permissible dose of electromagnetic radiation for a person — it is 0.2 μT... Now let's note the average value of electromagnetic radiation of various electrical devices and devices that a person encounters in everyday life.

A computer is an integral part of every family's home. Nine out of ten homes have a computer or other computer equipment (laptop, tablet, etc.) This marvel of technology is the source electromagnetic radiation up to 100 μT. It is easy to calculate that a person in close proximity to a computer is exposed to electromagnetic radiation that is 500 times higher than the permissible value.

Almost the same level of electromagnetic radiation is generated by a microwave oven. Even an ordinary table lamp is a source of electromagnetic radiation, which is 4-5 times higher than the permissible value. In this case, the source of radiation is the wire that powers the lamp.

The harmful impact of mobile phones and other gadgets and electronic devices is also impressive. Electromagnetic radiation from these devices reaches 50 μT, which is 250 times higher than the permissible value.

Electrified vehicles are one of the most powerful sources of electromagnetic radiation. A trip in a tram or trolleybus is accompanied by an impact on the human body of electromagnetic radiation with a value of 150-200 μT. In addition, in the subway, the value of electromagnetic radiation is an order of magnitude higher and is 300 μT.

Even on vacation, where a person appears to be away from sources of electromagnetic radiation, but is also exposed to electromagnetic radiation.The source of electromagnetic radiation in this case is high-voltage power lines that cross the surrounding area along and through.

All devices and devices that receive energy from the electrical network, to one degree or another, are sources of electromagnetic radiation. It turns out that a person living in modern conditions is almost always exposed to electromagnetic radiation. Therefore, the question of protecting the body from the effects of electromagnetic radiation is particularly relevant in our time. Consider the main measures to reduce the negative impact of electromagnetic radiation on the human body.

Methods of protection against electromagnetic radiation

One of the most effective ways to protect against the negative effects of electromagnetic radiation is the use of special devices that neutralize this radiation and minimize its negative impact on the human body. The principle of operation of these devices is based on the anti-EMF guidelines, which helps to reduce the negative impact on the human body of unwanted electromagnetic radiation.

The maximum reduction of the time spent in the area of ​​exposure to electromagnetic radiation is one of the most effective ways to protect the body from the negative effects of electromagnetic radiation. This issue is especially relevant for employees of power plants, where the level of electromagnetic radiation is maximum.

For example, personnel servicing a high voltage distribution substation. In switchgear, both open and closed, the level of electromagnetic radiation is very high.V electrical installations 110kV and more very often the level of electromagnetic radiation reaches such values ​​that its negative impact on the human body is very strong.

The first signs appear almost immediately: headache, weakness, irritability, depression. In such cases, the presence of a person in the zone of electromagnetic radiation without the use of special protective sets (shielding devices) is unacceptable.

When service personnel are located far from high-voltage equipment, for example, in a general substation control center, the level of electromagnetic radiation is much lower, but its values ​​are hundreds of times higher than permissible. This is due to the fact that there are many sources of electromagnetic radiation in this room: computer equipment, equipment protection and automation devices, low-voltage switchboards, etc.

In this case, if possible, you should take a break and leave the room, thus reducing the time spent in the area of ​​electromagnetic radiation. It will also not be superfluous to use the aforementioned devices that allow you to minimize the negative effects of electromagnetic radiation on the human body.

It should also be noted that the degree of influence of electromagnetic radiation on the human body directly depends not only on the time spent in the zone of its action, but also on the distance to the source of radiation. That is, in the process of using this or that electrical appliance or electrical device, the distance to the source should be increased as much as possible.

For example, when working on a computer, it is recommended to place the monitor at a distance of at least 30 cm from your head. The same goes for TVs and various gadgets.

When talking on a mobile phone, we recommend using the speakerphone or a wired headset. If your mobile phone is not in use at the moment, you don't need to keep it in your pocket, it's better to put it on the table.

As a rule, the instructions for electrical appliances must indicate the safety measures, in particular the safe distance to this electrical appliance, at which the level of radiation will be minimal. If such data is not available, then for your own safety it is better to clarify this data. There is free access to information on this matter on the Internet.

Very often, both at home and at work, electrical appliances that are not currently in use are plugged into the network. These electrical appliances include mobile phone chargers, audio and video equipment, television, etc. Turning off these electrical appliances can significantly reduce the level of electromagnetic radiation and, accordingly, the degree of its negative impact. Also, turning off electrical appliances can reduce the total amount of electricity consumed.

As mentioned above, high voltage power lines are a source of electromagnetic radiation and the level of this radiation is quite high and the higher the voltage, the higher the level of radiation. Therefore, it is necessary to exclude or, if possible, reduce the time spent in the area of ​​action of the electromagnetic field of power lines.

There is such a thing as a power line safety zone — a distance on either side of power line conductors. The size of the protective zone of the power line varies depending on the voltage class. For example, the safety zone of 35 kV power lines is 15 m, 110 kV — 20 m, 330 kV — 30 m.

In the security area of ​​power lines, the degree of electromagnetic radiation significantly exceeds the permissible values. Therefore, the construction of residential buildings and various structures is not recommended in this zone. If you love gardening, you should leave the area where the power line runs. Typically, a significant amount of time is spent on land, so you will always be exposed to excessive exposure to electromagnetic radiation from power lines.