Electric power in Europe


Does anyone knows is the current power standard in the European Union, 230V 50hz, is delivered via a single 230V hot line and a neutral return or via two 115V hot lines?

I am considering a job offer in Spain, need to know if I will need to sell my gear or convert it. Thanks.
hepl
Keep your gear!! It will work flawlessly on converted sources!
My entire system is American (Wadia, McIntosh, Revel) and I never had the slightest problem here in Germany. I know that Spain is no problem either.
Good luck with the job!
Contact your manufacturers to see if it is easy to change to 220V, especially for your amp as high current transformers are expensive. Buy a high quality transformer for all your other equipment. The 220v is single phase (hot, neutral and sometimes a ground). In France there is often only 2 holes for household applicances. Buy a Radio Shack polarity checker and wire the transformer so that the US standard outlet checks correctly with the tester. Mark the plug of the transformer to insert it ONLY this way and do not use it on any other oulets without checking for correct connection. You will also need to do this for computers. Your TVs are worthless in Europe. Also DVD players will be a different norm. (You can carry yout TV and DVD player and connect it as above but you will ONLY be able to play the DVDs you carrry with you.)
A small correction to the things mentioned above. All European countries now conform to the 230V standard. However most people tend to forget, and still refers to it as 220V.

If you have equipment that can be set for 220, then they will not have any issues with 230V - same thing applies if you have a 240V setting (UK was the only country on 240V)

As in the US, voltage will be going up and down, so you can expect anything from 200 to 240V.

Many countries do not have legal requirements on ground installations except in citchens, so outlets with two plugs are the most common installation, even though new EU requirements does state all new installations should be done with a third ground wire.

A step down transformer can be used for 90% of your gear, including household, but you should remember that there is powerloss in all transformers, and power is generally a lot more expensive over here, so it may not be worth while to do it in the long run.

Finally, as mentioned there is the regional coding on DVD's, so check if you can hack your dvd before bringing it. Region 1 dvd's are pretty easy to purchase in most countries so there should be no worries for bringing it back home.

Hope this helps and got luck on the assignment..
The only thing you ave to be careful, that some manufacturers in order to save their insane prices in Europe (ML 390s here 9.200 euro, equals 12.000 usd) and block black import, put a small chip inside their machines to allow run it only on 60hz. Thats a problem, and only Psaudio P300 would help you out. So, you really should check the manuals of each gear what it says.
Thanks to all of you that responded. Will contact PS Audio for more details on the 50hz issue. Hector