Yes, as the voltage goes higher the amperage goes lower. With a lower current the wire size can be smaller and in the case of a motor the equipment to start and stop the motor can be of a smaller size. This equates to a savings in the installation costs.
Another Answer
The standard European residential nominal ('named') voltage is 230 V. Although this means that, for a given load, the current is lower (about half) than it would be for a North American 120 V supply, in practise European residential conductor sizes are not much different from those in North America. For example, a North American receptacle or socket outlet is rated at 120 V/15 A, a British socket outlet is rated at 240 V/13 A, which means that whereas a North American receptacle can only supply loads up to about 1800 W, a UK socket outlet can supply loads up to about 3000 W. As a result, a British kettle, for example, is typically rated at 3 kW -enabling it to boil very much faster.
A doubling of voltage for the same circuit decreases the amperage requirement by 1/2. A circuit requiring 20 amps at 120 volts would only require 10 amps at 220 volts. The wire size can be smaller with an increase of voltage. Also less heat and resistance in the wire.
Another AnswerEuropeans use 230 V, compared to 120 V in North America. In the UK, residential power circuits are rated at 230 V/13 A, compared to 120 V/15 A in North America -in other words, conductor sizes are roughly the same. This means that a UK socket outlet (receptacle) can supply loads up to about 3 kW, compared with just 1.8 kW in North America. This is reflected in the electrical appliances used in the UK: for example, a typical British kettle is rated at about 3 kW compared with half that wattage in North America and will, therefore, boil more quickly.
Because a 220 volt appliance will draw 1/2 the current of a comparable 110 volt appliance. This means you can run smaller wire than for a comparable 110 volt appliance. 220 volt appliances are usually those that draw more current than other appliances. For example an electric stove with 50 A service would require 100 A at 110 volts which would really require heavy duty cable which is costly and hard to run.
Answer for USA, Canada and countries running a 60 Hz supply service.Breakers are rated in amperage and by the amount of poles that they have. Your classification of a 220 breaker is described in electrical terminology as a two pole breaker.Choosing the amperage of the two pole breaker depends upon the 220 volt load that it feeds.Two pole breakers for 220 volt loads.Single pole breakers for 120 volt loads.If the service is only 120 volt then every other bus bar in the panel will be energized. If the panel is a 120/240, then every bus bar in the panel will be energized.This is how and why a 240 volt load requires a two pole breaker.To the answer, yes you an use a two pole breaker in a 120 volt service but only one side of the breaker will have voltage on it depending on where it is situated in the panel board.
Wire is wire - is doesn't matter what voltage you use. However, if you are changing the voltage on a device from 240 to 120, given the same power requirement, you may need bigger wires for the doubled current (and increased heat of resistivity).
You need a step down voltage transformer that converts 220 volt to 110 volt to use a 110 volt printer with 220 volt. You can get good quality transformers at East West International in Houston, TX. If you order online or over the phone, they can ship it to you in 2-3 business days.
Never heard of a power tool that runs on 100 volts AC. It would have to be 108 to 120 volts or 220 to 240 volts. It will work on the 120 volt outlet if is it 60 hertz in the U.S. or 50 Hrtz in some other countries. If it is 50 Hrtz then do not use it in the U.S. without a converter.
If you want your bulbs to last longer then use 130 volt bulb on a 120 volt system. The light emitted by a 130 volt bulb, when comparing it to a 120 volt bulb, will be a bit dimmer.
no , it will burn out
Yes a 220 volt light bulb will run on a 120 volt circuit but at 1/4 of the wattage that the light bulb is rated at. A 100 watt light bulb on 220 would would be equal to a 25 watt light bult on 120 volt system.
you don't. you just take and use 120 volts from the 220. At least that's what I'd do.
Yes, this can be done. The adapter will handle at 120 volts x 15 amps = 1800 watts. The adapter is just a step up transformer. The maximum 220 volt device that can be connected can only have an amperage rating of 8 amps at 220 volts.
Can you use a 120 volt bulb in a 130 volt socket?
If a motor is designed to run on different voltages there will be a wiring diagram on motor plate for 120 volt wiring. If not you will have to use a step up transformer to convert 120 V to the higher voltage.
No.
no
Answer for USA, Canada and countries running a 60 Hz supply service.Breakers are rated in amperage and by the amount of poles that they have. Your classification of a 220 breaker is described in electrical terminology as a two pole breaker.Choosing the amperage of the two pole breaker depends upon the 220 volt load that it feeds.Two pole breakers for 220 volt loads.Single pole breakers for 120 volt loads.If the service is only 120 volt then every other bus bar in the panel will be energized. If the panel is a 120/240, then every bus bar in the panel will be energized.This is how and why a 240 volt load requires a two pole breaker.To the answer, yes you an use a two pole breaker in a 120 volt service but only one side of the breaker will have voltage on it depending on where it is situated in the panel board.
Wire is wire - is doesn't matter what voltage you use. However, if you are changing the voltage on a device from 240 to 120, given the same power requirement, you may need bigger wires for the doubled current (and increased heat of resistivity).
The voltage cannot just be increased in a circuit because there is a risk of damage, blown circuit breakers and/or fire. However an appliance desgined to run on 220 v will use 6/11ths of the current used by an identical appliance designed for 120 v.
No, unless it is dual rated for 110 - 220 volt use. Check the manual or look at the rating sticker that should be somewhere on the printer.