We are so accustomed to their home helpers that do not even think about how they work. Electric heaters are operated normally when the voltage in the range from 5% to 10% of rated. All parts under voltage, isolated from each other and from the body of the instrument. Insulation resistance at maximum temperature must be at least 1 Mohm. It must stand for 1 minute 1000W AC 50 Hz. Heating-equipped non-replaceable patch cords, where they are out of the body should have a good shield, or insulation, contact pins are properly insulated from the housing and a protective shield against damage and accidental contact with power on. Connections between the conductive parts provide reliable electrical contact. When installed in flats electric stoves, electrical wiring and equipment protection must meet the power consumption.

To electric heaters were fire-resistant, the surface on which they are established, should not be heated more than 65 C. Today it is widely used have air conditioning. Given that current models have unique properties such as heat and cool the air they are placed everywhere. They provide maximum climate comfort in the summer saving on heat and winter frost. Of course, replace heaters, they are not capable, but to support us to supply heating may well be. Requirements placed upon them, are determined by technical conditions and can be fulfilled with high-quality manufacturing of air conditioners, namely: 1) at rated voltage decrease in performance should be no more than 10% of the face, 2) electric motors to be run properly and work for inclusion in the network with a voltage rating not less than 10%, and 3) data hardware must withstand the speeding speed electric motors for 25% of the face within two minutes, and 4) the noise generated during operation should not exceed the established norms of 5) swivel motor with a rack should ensure smooth rotation and secure fastening the motor in position, the angle of rotation in the vertical plane must be not less than 60 ; 6) motor bearings should be designed to operate without additional installations lubricant for 250 hours 7) Isolation windings shall withstand for 1 minute power 1000 watt AC power frequency, 8), insulation resistance of motor windings relative to the body should be at least 1 Mohm; all know how polluted our atmosphere.

Household air purifiers remove from our apartment smoke, dust and soot. Staying healthy in our time is very difficult. But if in time to take care of yourself, You can avoid the disease. Recently acquired data are simply enormous popularity. This is due to the fact that each year the number of cars on the street is not reduced, but added, which in turn negatively reflected in the atmosphere. Household air cleaners are designed for people who are thinking about what is actually breathes modern man. The ecological situation of our country, especially big cities makes We purify not only water but also air.