Why on all continents different sockets?

12-10-2017, 19:30
When it comes to electricity, globalization can be forgotten. Even in the European Union, where one currency runs, electrical outlets are different. Therefore, when going abroad, you have to fill up your luggage with an adapter or look for it on arrival. The reason for this is a historical factor.
Why on all continents different sockets?
In the era of electrification, inventors from different countries offered their versions of optimal sockets; around the world, various types of electric generators were built. And the national companies involved in the installation of electrical networks supplied their devices suitable for these networks. Accordingly, different types of plug-in connectors and sockets were introduced and their networks were designed. The developments of other countries were completely ignored.

Influenced the development of outlets and the availability of materials. For example, during World War II, a three-pin plug with a short copper fuse was invented in Great Britain. Such a design allowed to save copper stocks for military needs.
Now, according to one classification, there are 12 types of sockets, according to another - 15. Moreover, sockets of one type sometimes accept plugs of another. However, having learned that in the country where you are going, the same type of outlet as at home - do not rush to rejoice! This solution is only half the problem. Voltage and frequency of current can vary in different parts of the world.
Classification of types of sockets and plugs in different countries of the world
Why on all continents different sockets?
The most common are two standards: European - 220–240 V at a frequency of 50 Hz and American - 100–127 V at a frequency of 60 Hz. It is not necessary to check what will happen if the appliance, operating from 100–127 V, is plugged into an outlet from 220–240 V.
In some countries, you should keep your eyes open. For example, 127 V is used in most parts of Brazil, but 220 V is found in the north of the country. The voltage is the same everywhere in Japan - 110 V, the frequency is different: 50 Hz is used in the east and 60 Hz in the west. The reason is simple: first, generators of German production with a frequency of 50 Hz were purchased for Tokyo, and soon after that, American ones with a frequency of 60 Hz were installed in Osaka.
Perhaps someday a single standard will be adopted. Universal socket for all types of plugs already developed. But for now, it’s everyone’s business to install it or not.In addition, you must first come to a single voltage standard. And this rests on the huge financial costs of re-equipment and re-equipment of transformer substations, replacement of outlets and plugs.
* Voltage 100–127 V at a frequency of 60 Hz is used by the USA, Canada, Japan, Mexico, Cuba, Jamaica, partly Brazil and other countries.
* Voltage 220–240 V with a frequency of 50 Hz is used in most other countries, but with the same parameters, the type of outlets can vary greatly.
Here is a brief description of some of them: Types A and B - American socket
Why on all continents different sockets?
Type B differs from A by the presence of a third hole — it is intended for the ground pin. Such sockets, as one might guess from the name, were invented in the USA and distributed in the territory of North, Central and partially South America, as well as in Japan and some other countries.
Types C and F - European socket
Why on all continents different sockets?
Just like A and B, types C and F differ only in the presence of grounding - it is in F. The European socket is used in most EU countries, as well as in Russia and the CIS, Algeria, Egypt and many other countries.
Type G - British Socket
Why on all continents different sockets?
In the UK, the socket has three flat holes, and this design appeared for a reason.The fact is that during the Second World War the country experienced a copper deficiency. Therefore, a plug with a short copper fuse and three plugs was designed. In addition to Britain, the same outlet is used in Cyprus, Malta, Singapore and other countries that have experienced the influence of the British Empire.
Type I - Australian socket
Why on all continents different sockets?
This type of outlet can be found not only in Australia, but also in New Zealand, Fiji, the Cook Islands, Kiribati, New Guinea, Samoa and sometimes in China, where types A and C are also common.
Type H - Israeli outlet
Why on all continents different sockets?
Type H is used only in Israel and Palestine, and the plug pins can be either round or flat, depending on when the device was manufactured. The flat form of the socket was at the old technology, but the new sockets are suitable for two options.
Type K - Danish socket
Why on all continents different sockets?
This outlet can safely claim to be the “most friendly” in the world - its design resembles a smiling face. In addition to Denmark and its constituent Greenland type K is used in Bangladesh and the Maldives - however, there are several types of outlets distributed at once.
Fortunately, all these differences will not spoil your vacation or business trip - you just need to purchase a suitable adapter in advance.
Universal adapter
Why on all continents different sockets?
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Why on all continents different sockets?
Why on all continents different sockets?
Why on all continents different sockets?
Why on all continents different sockets?
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A map showing the distribution of various types of outlets used around the world.
Why on all continents different sockets?
World map shows the distribution of various types of outlets in use around the world. The countries using Type A and B are highlighted in red, the types C and E / F are used in dark blue (which are 100% compatible with each other), the countries using Type D are highlighted in brown, the type G is sea-green, the types C and H are Israeli in pink. , yellow highlighted countries using Australian type I, black — countries using C and J, gray types C and K, orange types C and L, purple in countries of South Africa type M, pale blue countries using type N, and dark green Thailand Types C and O. Keep in mind that this simplified review only shows the most The prevalence of type plugs, and sometimes several systems in the same country.
A complete overview of all countries of the world and their respective plugs / sockets and voltages / frequencies used for household appliances.The table shows that in most countries the power supply ranges from 220 to 240 volts (50 or 60 Hz), significantly exceeding the countries operating at 100-127 volts. The list also shows that types A and C are the most commonly used electrical plugs in the world.
Most countries have a well-defined plug and voltage standard. However, many Latin American, African, and Asian countries use a motley collection of often incompatible forks, and sometimes stress varies from region to region. This situation makes travel difficult to assess which connector of an adapter or transformer is needed for a trip. In this case, when the situation with electricity in the country requires additional information, the name of the country in question is highlighted in red.

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