Normally, yes. Most of the times, the 230 volt will be transformed down a number of times for much lower operating voltages. The extra 10 volt divided by that number is usually negligible. Actually, the voltage fluctuates quite a lot, and your equipment is build with this in mind. The old 220 standard was ± 10%, where 230 is well below the upper limit.
The higher voltages we use (230 V and up) is for transportation of power. High voltage
at a constant effect means fewer amperes, which means (a lot) less loss in transmission lines.
The 230 volt is a compromise between the Britain (240) and continental Europe (220)
when the two power grids were united.
For more info, see link Electricity Standardizaton
What exactly is this question asking?
Is it asking about an Air Conditioner Unit that has been manufactured to operate in the US or Canada or similar countries which use 220 - 240 Volt 60 Hz household power supplies?
If so, it should work fine on those supplies.Note: in the US, Canada, and other countries using similar 60 Hz supplies, circuits for lighting and low-power appliances run at 120 volts plus or minus 10% in which case the voltage range could be from 108 Volts to 132 Volts.
All new buildings using this system in fact get 240 Volts plus or minus 10%, split into two 120 Volt "hot" wires (often called "legs") with a common Neutral wire. Major appliances, such as clothes driers, kitchen ranges, large air conditioning units, etc. are now manufactured to be connected to that kind of 240 V supply.
An informal, but more accurate, description of such a supply is:
A "-120V / Neutral / +120V" supply.
Or is this question asking if a 230 volt 50 Hz European appliance can be used on a 240 volt 60 Hz outlet in the USA or Canada?
If so, see the answer to the Related Question "Can you plug a 230V 50Hz appliance into a 240V 60Hz outlet?" using the link shown below.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
If you do this work yourself, always turn off the power
at the breaker box/fuse panel BEFORE you attempt to do any work AND
always use an electrician's test meter having metal-tipped probes
(not a simple proximity voltage indicator)
to insure the circuit is, in fact, de-energized.
No. You can only use AC in a transformer. DC will, at minimum, trip the breaker, and, at maximum, destroy the transformer or cause other damage.
No. They will not work correctly with DC.
Yes, 220 volts is in the same voltage classification as 230 volts.
In the US the voltage is about 220 volts. This voltage is based upon the average voltage of the AC sine wave. It can peak as high as 240 volts or as low as 210 volts. So these different voltages are actually referring to an average 220 volt system.
A step-up transformer would be required to supply 230 volts from a 220 volts source from South Africa.
The question can't be answered - it has no meaning :)
Yes, but a fact has to be taken into account that when a 230 volt rated bulb is used on a 120 volt system the wattage output is half of what the 230 volt bulb is rated at when it operates on 230 volt. So the dimmer will only be used to control half of the bulbs wattage which could bring the bulb down to a dull glow in full dimming position.
Yes, 220 volts is in the same voltage classification as 230 volts.
No. The capacitor will short out and possibly explode. On the other hand, the 440 Volt Cap can be used in a 220 Volt circuit.
In the US the voltage is about 220 volts. This voltage is based upon the average voltage of the AC sine wave. It can peak as high as 240 volts or as low as 210 volts. So these different voltages are actually referring to an average 220 volt system.
A step-up transformer would be required to supply 230 volts from a 220 volts source from South Africa.
Yes
There is no remedy but to plug it into a 230 circut.
The question can't be answered - it has no meaning :)
No, if it says 230-240 .. 230 is the minimum..
Yes, but a fact has to be taken into account that when a 230 volt rated bulb is used on a 120 volt system the wattage output is half of what the 230 volt bulb is rated at when it operates on 230 volt. So the dimmer will only be used to control half of the bulbs wattage which could bring the bulb down to a dull glow in full dimming position.
My electrician says no, has to be some rewiring.
Yes no problem.
Yes, 240 volts is a "nominal" figure, related to peak current. The actual usable voltage is in the 220 -230 range and any 220-230 volt appliance will be quite happy.