About 20 of the countries use 110 120 v andor 60hz to power their homes. However for the imported electronic devices which are specifically intended to work only on 220v.
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The voltage and frequency of ac electricity varies from country to country throughout the world.
220v to 120v. Country voltage freqhz plugtype. Most use 220v and 50hz. Uk australia singapore besides of a step up transformer you may need a frequency converter to convert 60hz to 50hz.
National electrical code national electrical code calculations electrical continuing education nec code changes and more. Also never get cheap ass fake power adapters or transformers from the chinese either. One of the largest automation system house distributors with 3 decades of experience.
220v actually 240 is a single phase system typically found in most homes. Uk australia singapore besides of a step up transformer you may need a frequency converter to convert 60hz to 50hz. Authorized for omron mitsubishi delta autonics inno honeywell oriental motor novotechnik.
208v is typically found in three phase systems mostly found in commercial settings. 220 240 v and 60hz are the most efficient values but only a few countries use that combination. How much power work you can get from an outlet is limited by two things.
When you buy an 110v 120v 60hz appliance from usa and run it on 220v 230v 240v 50hz country ie. When you buy an 110v 120v 60hz appliance from usa and run it on 220v 230v 240v 50hz country ie. Eg due to crap and lazy manufacturing the high voltage ac can come into contact with the supposedly low voltage dc wire and kill you.
They are not exactly the same. You asked what the difference is between 110 and 220 volts but i think what you really want to know is why a home is typically supplied with two difference voltages. In the us the term 220v and 240v are often used inter changeably.
I meant if the device is cheap dont bother getting a transformer just get a device designed for your country in the first place.
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