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What is the mains voltage supply in the UK?
In whole Europe there is 230 volts AC, so it is in the UK. Before there was 240 volts. Cheers ebs Officially, to fall into line with EU harmonisation requirements, th…e stated voltage in the UK is now 230 V (+10% / -6%). In practice, however, nothing has changed from when the official voltage was 240 V (+/- 6%), as this is little more than a paper exercise.
The usual voltages produced by the power supply in a standard personal computer system are 5 volts and 12 volts. For more information see the Related Link shown below.
240, single phase for houses 208 3 phase for comerical property, can be single phase. 480 volt for industrial property or 660 volts, all 60 Hz USA calls it single phas…e but there is actually 2 hot leads coming into the house with a natural and a ground. It is actually two 120 volt 'hots' which are 180° out of phase from each other. Voltage between either of these and ground will be 120 V. Voltage between the two hots is 240 volts. It is single phase because it is pulled off one of the phases from 3-phase, then a center tapped transformer gives the two 'opposite phases' (ground/neutral is off the center tap) In Vietnam we have 440 volts, 3 phase, 50 Hz on the poles. They bring in one hot wire and one ground. I call this single phase, It equals 220 volts in your house.
The nominal voltage for the UK 230 V (+10/-6%).
110v and 240 v
230-240 It's described as 230 v for harmonisation with Europe, with a tolerance of -6% +10% to allow for the fact that the actual supply voltage in most places i…s 240 v, and there are no plans to change it. So 230 v is the political answer, while 240 v is the real answer.
Since 1995 230v 50Hz
The UK voltage is now 230 V +10% /- 6%, AC, 50 Hz. However, it's worth noting that this 'new' nominal voltage has been nothing more than a 'paper exercise' to comply with Eur…opean harmonisation standards. In practice, nothing has been done to change it from the original UK standard, which was 240 V +/- 6%. (If you compare the allowable percentage variation for each standard, you will note that the range of allowable voltages is roughly the same!)
Your power supply unit, PSU. Takes AC power and distributes so much power to each connector. Each PSU, depending on the wattage of the unit gives each connector so much vo…ltage. Each connector is designed for a certain piece of hardware that requires different voltage.
AC stands for Alternating Current and DC stands for Direct Current.
Why is the voltage at the end of a long extension lead used with an electric drill less than the mains supply voltage?
Resistance in the length of wire that makes up the extension cord causes voltage to drop. But it needn't be a problem with the right extension cord. For an electric drill, up …to a 25 foot cord of 16 gauge wire will cause a voltage drop so small as to be negligible. For 50 feet, switch to a 14 gauge cord. For heavier power tools (circular saw in particular) you should use a 14 gauge extension from the get-go.