Japan household AC mains

There is an article on domestic mains voltages in Wikipedia.

PWSlack,

Thanks for the advice. What is this "Wikipedia" thing? Never heard of it. Is it some kind of newsletter or magazine? Can you send me a copy?

Most sources I've found only state that the wall outlet voltage in Japan is 100V nom. and either 50 or 60 Hz depending on location. This I already knew.

Again, I'm interested specifically in how the mains is connected to the household. For example, here in the US houses are always supplied with two 2 phases of 220V Hot and a Neutral, and these are seperated at the houses' breaker panel. This allows for high-demand appliances (ovens, clothes driers, etc.) to use 220V while almost all other appliances use 120V.

It's not so clear if Japan households are commonly supplied 200V in that same fashion. I've never been there, but to my limited research such big Western-style appliances don't seem terribly common in Japan. Annoyingly, I've run across just enough conflicting sources over 200V being / not being supplied that I'm totally unsure.

Hence my very well thought out and eloquently worded question to the wise CR4 community.

Wikipedia is an open-source "encyclopedia" where anyone is free to offer information/articles. You have to be careful of the information supplied there because I don't believe it goes through a rigorous fact-checking system.

http://en.wikipedia.org/wiki/List_of_countries_with_mains_power_plugs,_voltages_and_frequencies

http://en.wikipedia.org/wiki/Mains_voltage

Guest,

Thanks very much for your kind assistance.

Please also check Wikipedia for "sarcasm".

Ha-ha, I was wondering (shaking my head) at the thought of someone not knowing about Wikipedia, and was almost going to make a snide/sarcastic response, but instead I fell for it, oh well next time