Europe’s power grid, the world’s most interconnected, is set at 230 volts (an EU standard since 2008). The United States power grid is much less well integrated, but all over North America the voltage is a nominal 120 volts. (Actual voltage at the wall outlet or light switch in any system can vary by plus or minus 5 to 10 percent.) In addition to the one 220V outlet for the saw, you're going to want several 120V GFI outlets - maybe A/C & heat, lights and dust collection. Plus - that gives you enough to add a 220V plug for an electric vehicle if you have to get one of those things. Europe uses 230V as its standard for electricity. As a result, fans that run on 200 to 240 voltages are typically found in foreign imported equipment that was not designed specifically for the US market. If a US resident wished to directly plug a 230V fan in an outlet, he or she would require a step-up transformer to convert the outlets 120V to As for 220 or 230 volt circuits for the home, the voltage range is commonly 220 to 240 volts, so it is basically one in the same. This issue here is the required circuit size as it applies to amperage. If the existing circuit is too small then a new circuit will be required. This type of circuit may not be shared with another device. In both cases, the electrical insulation system inside the motor or equipment can be degraded reducing life or causing damage. Can a 220V outlet be converted to 120V? Voltage converter can be used to convert voltages as long as power requirements are met. For example, you can change 120V (110v) to 240V (220v, 230v). Your electrical appliances A 50 Hz fan motor will rotate 20% faster RPM at 60 Hz, therefore will the fan blades to increase the torque by 40% while the inductance in the induction motor windings increases, the motor becomes overloaded if not the voltage to the motor is increased correspondingly. If the appliance's electric motor is designed for 60 Hz will therefore be Ireland power plug and concern about 230 V vs. 220 V. I am travelling from Hong Kong to Ireland. In Hong Kong type G (220V, 50Hz) plugs and sockets are used. While the plugs and sockets in Ireland are also type G, they have different voltage (230V, 50Hz). Just wondering if I can use my Hong Kong chargers without using a adaptor in Ireland. I have an 220V air compressor (30A) in the attic of my garage. It has a 110V automatic drain valve connected to it. A the breaker box downstairs I want to be able to turn the power off to BOTH. Ideally I could simply turn off the 220V circuit (the compressor is the only load). The 220V circuit is single phase and the receptacle is a NEMA 14-50. Mount the disconnect switch on the wall at a height of about 4 feet, near the transformer on the 230-volt side. Use the multimeter to check the voltage at the terminals of the 208-volt two-pole breaker to make sure it is 208 volts. Switch off the power. Cut a length of power cable for the connection from the breaker to the transformer. 240V/230V is more harmful than 120V when exposed directly to a human body. Voltage drop and I2R is higher in 120V than 240V for the same distance, wire size conductor and wattage application (Watts = Volts x Amps). Keep in mind that is negligible (3 to 5%) in home based wiring systems. QFqdNmj.