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Q: What are the dimensions of a US electrical plug socket?
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How many prongs does a standard electrical plug have in the UK?

Electrical plugs in the UK have 3 prongs, similarly to the US. A Hot, a Neutral and a Ground (earth).The Ground prong, if present, is a bit longer than the others so it makes contact first when inserted into a socket. The other two prongs are partially insulated near the base of the plug. These are both safety features. As the longer ground pin makes contact first, it is less likely to fault. The partially insulated pins make it less likely someone might touch a conductive surface when inserting or removing a plug.A longer answerThe UK and Republic of Ireland use a power outlet plug and socket system which is totally different to the rest of Europe:All power socket outlets are rated at 13 amps to take a standard 13 amp plug.Each power socket has a protective insulated shutter that safely uncovers the live (or hot) and neutral holes when the plug of an appliance is inserted. The shutter immediately covers the holes over again when the plug is removed. The shutter is operated by the insertion of the earth (or ground) pin which is longer than the live and neutral pins.Each 13 amp plug has 3 rectangular (not round) pins: a live, a neutral and an earth pin. There is also a fuse that should be selected to be of the right size to protect the appliance it is attached-to.The actual plug type is known internationally as Type 'G'.It was designed for use on any normal house mains voltage or frequency and is used in the UK and other countries which have adopted the UK mains power plug and socket system for appliances. It is a very good plug and socket system but not many other countries have adopted it - probably because they didn't invent it!The Related Link shown below and the answer to the Related Question also shown below are relevant to this question.


What is a polarized electrial outlet?

In the US the larger prong is Nuetral and the smaller is Live or Positive.


Can a standard US 110 volt socket sustain 220 volts of electricity?

It could. No problem. But it is no clever idea. The socket would not be harmed, but the appliance almost certainly would.


What is the electrical current in the US?

120 volts 60 Hz AC


What is the minimum age to attend a class for electrical installation training?

To be qualified for electrical installation training in the US, you must be at least 18 years or older.

Related questions

What is the common way of referring to a plug and its corresponding socket as per the electrical engineering terminology?

Plug and socket, plug and socket outlet, plug and receptacle or plain plug and outlet all seem to be in common usage in the US. Plug and socket is possibly the only wording commonly used in the UK. [Plug and socket outlet sounds ok to a me, as a Brit, but we never really use that expression in the UK. Plug and outlet or plug and receptacle actually sound very strange!]


Do you need a plug converter with 2 or 3 prongs from your North American plug into a Australian socket?

What you need to worry about more than if the plug fits is that the voltage is correct. If you are in the US and about to plug something into a standard(US) socket make sure it either accepts 110V current or that is equipped to transform 110 into whatever it needs.


Do a US bought laptop work in EU?

You will need a different type of plug than what is used in the US or an adapter to plug into a socket. If you have those then it will work. Some countries, like Britain and Ireland, use different plug sockets than other countries, so you need to know what you need for where you are going. You can buy the adapters in good electrical shops, department stores or at shops in airports.


How do you use UK appliances in Singapore?

You can use US appliances, but only if you get an adaptor. The island uses 3-pin UK plugs and 240v electrical appliances.


What plug socket and voltage does the US have?

120/240 Volts at 60 Hz with either type A or B socket. See here for more info: http://users.telenet.be/worldstandards/electricity.htm#plugs_a


Will drills from US work in Ireland?

Yes, but you will need an adapter to plug it in as the electrical system is different in Ireland.


Can you safely plug in an Italian 220 volt lamp in an American 110 socket?

No. The key word being "safely". It is NEVER a good idea to use an electrical device in a way not intended by the maker. First of all, the plug may not be compatible with US outlets. Hopefully it won't be. The best you could hope for is a dim light anyway. The worst you could get is killed.


Where is the color code located on a Mercedes ML320?

I have a US version MB ML320 and I want to locate where I could put the daytime running light. There are two available socket but I don't know which is the correct one. Are there any electrical problem if I jut plug the daylight running time relay?


Travel iron that says 110volts 250watts is that ok to use in the USA afraid to plug it in it has a us plug?

110 volts is the standard electrical voltage in the USA, so you will not damage your iron, when you plug it in. If the iron is dual voltage (110/230 volts), move the voltage selector switch to 110 volts before you use it in the USA. However, there are two diffferent types of electrical socket in North America (with or without earth grounding). For safety reasons, I would not recommend using your iron (anywhere in the world), unless the plug has a round earth pin, in addition to the two flat bladed pins.


What is the function of the neutral wire in a plug?

The green (or green with yellow strips) is for Earth. This is the D shaped socket in a US outlet. The Black (US) or Brown (UK) is for Live. This is the narrow rectangular socket on a US outlet. The White (US) or Blue (UK) is for Neutral. This is the wide rectangular outlet on a US socket. The color code may vary for other countries, so be sure to check.


Can you plug your US laptop into a Korean 220 Volt socket without damaging it?

look at the label on the power supply most work for 90 to 250 volts


How can UK electrical items such as Nintendo DS and mobile phones be charged whilst on holiday in the US?

you will need to buy a UK to us travel plug power adaptor