The US, which started with volt power, actually considered switching to more-efficient volt household power in the s. Europe had developed its volt now volt system after learning from the American experience, and before any massive infrastructure changes would be required.
But some parts of Europe were originally volts also. The top and bottom metal contacts are the ground. Holburn produced volt direct current. The future would belong to AC. It was the Germans who introduced AC power in Europe. The International Electro-Technical Exhibition in Germany would prove to be a key event in the development of electric power. The exhibition featured a hydroelectric power station at Lauffen, with transmission lines that extended miles km north to Frankfurt am Main.
The Lauffen-Frankfurt line was the first efficient long-distance transmission system. It transmitted volt 40Hz AC power. Russian-born Dolivo-Dobrovolsky [] immigrated to Germany to study electrical engineering in Darmstadt. He later worked in Berlin and Lausanne, and did important work in electrical science and obtained over 60 patents.
His grave is in Darmstadt. He also preferred volt power. Electric motors are also much less efficient at the lower frequency. Cost was the main reason Europe went with volts now Counterintuitively, higher voltages allow the use of thinner wire, meaning less copper in the early days of power lines.
Power companies could save money on wire by using volts rather than Berlin is one example. Most of the differences have to do with construction, but some involve the strength of the current that the outlets are constructed to manage.
One of the most immediate differences in electrical outlets around the world have to do with the voltage of the current that is used in various countries. The standard in North America is to volts, while the European standard is volts. This necessitates a difference in the way outlets are constructed in Europe and in North America. Understanding the voltage of the current that is supplied by the outlet is very important, as travelers may find that appliances such as hair dryers and small appliances will not work with the electrical outlets.
All Rights Reserved. Useful information for travellers Three-phase electric power Cars Why do some countries drive on the left and others on the right? Abu Dhabi not a country, but a state an emirate within the United Arab Emirates. Burkina Faso. Central African Republic. Congo-Brazzaville Republic of the Congo.
Congo-Kinshasa Democratic Republic of the Congo. Czech Republic Czechia. Dubai not a country, but a state an emirate within the United Arab Emirates. Equatorial Guinea.
French Guiana French overseas department. French Polynesia French overseas collectivity. Gabon Gabonese Republic. If you see a range of voltages printed on the item or its plug such as "—" , you're OK in Europe. Some older appliances have a voltage switch marked US and Europe — switch it to as you pack. Even older devices and some handheld gaming systems aren't equipped to deal with the voltage difference — you'll need a separate, bulky converter.
Consider replacing your appliance instead, or traveling without it. A small adapter allows American-style plugs two flat prongs to fit into British or Irish outlets which take three rectangular prongs or continental European outlets which take two round prongs.
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