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How electric fields affect the body. Basics of safe life

Fundamentals of Safe Life Activities (OBZhD)

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In cases where there is no movement and the charges are motionless, constant electrostatic fields are formed, and interaction takes place between them.

Constant electrostatic fields are formed with the appearance of charges in the following cases:

1) when crushing and spraying substances;

2) for various types of deformations of solid bodies;

3) with relative movement of two solid bodies in contact;

4) due to induction;

5) with intensive mixing of layers of liquid and bulk materials;

6) in crystallization processes.

In natural, natural conditions, there are always static electric fields with a certain level of potential difference.

Electrostatic fields are also formed when a person wears upper and lower clothing made of synthetic fabrics and materials, in particular artificial fur (jackets, fur coats, sheepskin coats, caps, hats). Natural fur products also create artificial electrostatic fields.

According to medical statistics, electric fields of variable and high intensity increase the likelihood of cancer by 7 times, in addition, they contribute to a change in the structure of dental fillings with their subsequent destruction and the release of toxic substances from them. In cases where the actual levels of electric field strength exceed the permissible, safe values, in particular, electrostatic fields of more than 60 kV / m2 at workplaces, special protective equipment is mandatory.

In particular, the to protect the human body from the unwanted effects of electrostatic fields, the following measures are applied:

1) the time of work of service personnel is limited;

2) special neutralizers of static electricity are installed;

3) screening of the source of the electric field or jobs is performed;

4) grounding of metal and electrically conductive elements of equipment is carried out;

5) an increase in the surface and bulk conductivity of dielectrics is performed. The above protective measures against static electricity can achieve a reduction in the generation of electrostatic charges or their removal from the electrified material.

In addition, to reduce the magnitude of the electrostatic field directly from the human body from outerwear, special aerosol antistatic agents (in cans) are used. Outerwear, dresses, skirts, trousers are treated with these antistatic agents. Grounding of equipment, workplaces is carried out regardless of the use of other protection methods.

Author: Muradova E.O.

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