Alternating voltage

electricity in our homes

corrente alternata tensione  

The home power, the one that goes into the electrical system of our homes is not continuous but alternating .    

This means that it changes its polarity continuously, that is, it flows first in one direction then in the other.    

For accuracy, the polarity changes at a frequency of 50 times per second.    

Using the frequency unit we can say that it is an alternating current with a frequency of 50 Hz ( HZ = Hertz ) and 220 - 240 V.

   

However, it is not so in all countries of the world, for example, in the United States, household power has a frequency of 60 HZ

Corrente nel mondo

Not all countries in the world adopt the same electrical standards, let's see some of them.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
Country Domestic Tension Frequency

Austria

230 V

50 Hz

Brazil

110 – 220   V

60 Hz

Egypt

220 V

50 Hz

United Arab Emirates

220 V

50 Hz

Japan

100 V

50/60 Hz

Greece

220 V

50 Hz

Hong Kong

220 V

50 Hz

India

230 V

50 Hz

Portugal

230 V

50 Hz

Qatar

240 V

50 Hz

United Kingdom

240 V

50 Hz

Czech Republic

230 V

50 Hz

Russia

220 V

50 Hz

San Marino

230 V

50 Hz

Tunisia

230 V

50 Hz

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Electrician equipment

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Electrical consumables

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Single-phase and three-phase electrical system

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