By asking this question you are probably not quite ready to take on this particular task. The correct answer to your question will depend on the distance from the breaker panel and exact location of the air conditioner unit, its voltage and its power rating.
Really, don't do this one yourself. Electricity is far too dangerous to handle if you have not been trained how to do this work. If you use the wrong size and type of cable for the job and/or put just one wire in the wrong place, you risk being killed by electrocution or you could even start a house fire.
How to do this job depends entirely on the Wiring Codes or Regulations for the locality (Town/County/State) and on the exact location of the electrical equipment you wish to be installed. If situated anywhere that is subject to water splashes, water spray, dampness or humidity - such as in any room supplied with running water pipes, like a kitchen, laundry room, bathroom, shower room, etc., or in a workshop, or garage (or anywhere outside a building in the open air, such as along an outside wall - or a pool-side area) in many places nowadays it is actually illegal to attempt to do this kind of work unless you are already a licensed electrician.
If you get any other answer here, you might attempt to do something you shouldn't be doing, and that may cost someone a shock, a home fire, or even their life.
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As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.
Before you do any work yourself,
on electrical circuits, equipment or appliances,
always use a test meter to ensure the circuit is, in fact, de-energized.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
Use a 10 AWG wire when a circuit is to be driven by a 30 Amp breaker.
As with all home electrical projects, make certain that you understand and follow all local codes regarding any modifications that you are performing. If you have any questions, contact a qualified electrician or competent handyman, depending on state regulations.
A #12 copper wire with an insulation factor of 90 degrees C is rated at 20 amps.
10/3 with ground NM.
Typically 10 AWG.
4mm
it is a miss-wire, check what voltage you get between ground and the other hot!
You should step down your voltage source, to do so, a 230V-110V dry type transformer is needed. There's another way of doing it, .. But it is very unsafe.... you just simply connect 1 conductor to the Ground.. but it is not applicable if your line to ground voltage is already 230V...
No bell wire is not meant to be 230V.
230V
A 20 amp circuit with #12 gauge wire will work in any event but if the nameplate recommends a 15 amp circuit then #14 gauge wire on a 15 amp circuit is sufficient. In either case you will have a double pole breaker and your equipment may not require a neutral. Always run a grounding conductor.
Doesn't sound like a good idea to me.
Absolutely not.
it is a miss-wire, check what voltage you get between ground and the other hot!
If you know the wattage is getting pulled from a receptacle you can use simple math to do it for you. If not you need to use an Ampere meter. This i do not recommend as there would be no simple way to do without having to use loose wires and such. To calculate this take the wastage and divide it by the voltage in your socket (Usually 230V but can also be 110V in some areas). To give you an example. a 60w bulb in a 230v area would pull. 60W/230v = 0.26ampere.
maybe 10 amperes
at 230v it will use 5 to 6 amps
You would have to install a 230 volt outlet.
No. The amps must be 30 on each leg and the toggles must be rigged so that if one trips then both trip. It is best to buy the correct 230 V breaker at 30 amps.
You should step down your voltage source, to do so, a 230V-110V dry type transformer is needed. There's another way of doing it, .. But it is very unsafe.... you just simply connect 1 conductor to the Ground.. but it is not applicable if your line to ground voltage is already 230V...
You will only get a secondary voltage of half of what it is supposed to be. This is a hypothetical question because a 120 volt plug (cap) will not fit into a 240 volt receptacle. The pin configurations will not align up.
it will not run
No bell wire is not meant to be 230V.