What gauge wire to run?

Question

Wiring my garage and want to run a small air conditioner, a couple light circuits and a pc. 75 feet from my 200 amp service. wiring it for 220. I have 75 feet of 10/3 with ground. Will this be sufficient?

Answer 1

Two 15 Amp circuits (one for each side of the 220) is nominally 12 gauge wire, so 10 gauge will be more than adequate.

I would suggest running the AC on one side of the 220 by itself, with the lights and duplex outlet for the PC on the other side.

.

Answer 2

The key is how much current you will be drawing from the 200A service. You can find that typically listed right on the appliances that you wish to run, and I'm assuming you are in Europe, because in the U.S., most of our light A/C's and outlets around the house are wired for 120VAC. If you hook them up to 220, they won't work twice as good. :))

You will have to install a circuit breaker at the service box. For 10 ga. wire, you can run up to 30A (according to code)without risk of fire, so at most, install a 30A breaker.

That's really all there is to it. Just make sure you really WANT 220V on your outlets. Oh, and 30A at 220V (6600 Watts) should be plenty more than enough to run what you have. You should be able to get away with a 20A breaker and 12 ga if you're really running them at 220V (4400W). That's quite a bit of power.

Answer 3

I sence you planning to do this yourself.I would not unless you are a licensed Electrician.There are electrical codes that should be followed here.This is a good idea for insurance purposes too in case of fire etc.You may have to bury that cable and that takes a certain type of cable.Not sure if your using 230Volts either and what can current it draws.
Please get a licensed Electician to do the to ease your mind and mine.
Electricity can kill

Answer 4

14 gauge is typically used for 15 Amp service.