The electrical sector of any country in the world depends mainly on its economic system, and policies adopted by its government.
Hence, the whole process of power production and transmission in a country need not be the same as others. In some of them, generation, transmission and distribution of electricity are done by a government controlled organization. But in some others, privately owned companies will have shares too.
Just like the operation, the voltage and frequencies for providing electrical power to appliances too, differ from country to country.
In India, 50 Hz and 230 volts of power is distributed for domestic and industrial purposes. Countries like Hungary, Italy, Indonesia, Germany, France, and Russia too, follow the same pattern. But the USA and Canada have a different scheme – of 120 V and 60 Hz.
In Pakistan, Iran, and China it is 220 V and 50 Hz, and in Japan it is 50/60 Hz and 100V. This means, every country has differing rules regarding distribution of power.
