I'm confused. Isn't there a plug that only fits a specific power outlet? Are you planning to wire this directly into the building?!

The hell of an Oven is that...9KW?

Guess that's three-phases so that's why you have to wire it yourself...

...well he shouldn't get killed if he does things off-line but...no I guess one shouldn't be doing DIY on such an appliance.

(Anyway my domestic oven here has a very trivial mains plug and it's nowhere close to 9KW)

IF YOU DON'T KNOW FOR CERTAIN YOU SHOULDN'T WIRE IT YOURSELF. DIY electricians have burned down houses with far less amperage than that. Hire an electrician, please.

It really should be wired in 3-phase, it has been designed to be wired behind 3 16-amp fuses and in 1 phase you either will burn your house down or will be unable to use the appliance because it'll blow a fuse the second you switch it on.

Don't you use 3 phases in Russia? Instead you run 40 A through one phase. Or at least you let it run 40 A before the fuse blows, even if the oven wouldn't use that much. But in case of a bad wire hitting the ground you might get say 38 A running through one wire and no fuse burning. Do you have starter cables in the wall?

In Finland we normally have one phase in each power outlet, 10 A or 16 A. But in the kitchen we have one three phase cable end for the oven (3 * 16 A). A similar for the sauna. And maybe one three phase socket somewhere in the garage.

It's not "null" it's neutral.

Line, Neutral, ground.

Be VERY careful with the wire colors. They are NOT the same as computers and vary by country. This is EXTREMELY important to know and use your country's specific wiring requirements.

I've done lots with electronics, but I always treat mains with a fearful respect.

Follow a book, or an article written by an expert. Your oven should have come with a manual that explains everything. Call an electrician and let them bill you $20 to answer your question if need be.

The chances of failure are low, but the damage that occurs if that failure happens is very high.

All mains are dangerous. A main can run amps upon amps into you, or anything it touches. It does not reduce in voltage with amperage the way a battery does because it does not have that internal resistance. Treat it like explosive, molten metal. Touching it, dropping it and letting it splatter, will severely injure you.

I normally tell people that electronics are not as dangerous as people make them out to be... capacitors for example. But mains are a literal connection to a power plant and should be treated with awe.

That might explain it, but in Russia they have LOTSA GAS....so I hoped this is was an oven and not a full-blown stove.

Also I should ask, type...what's "9 kwth." ...I understood 9KW but from your following responses I mught have got it wrong.

Anyway in all europe you can go over 16A in a wall power outlet, you need a mains switch to go over 20A and maximum you get 32A in one phase IIRC....but it's been a while I dabbled with these...

Now FORTY Amps in a house? meh.

EDIT: of course I got SOMETHING wrong....

Is it normal to have three-phase in your house? I don't think it is in the UK. We had it at work - a lot of the manufacturing equipment and the lathes in the workshop used it, but not at home.

Admittedly back in the '50's, but my dad had to pay to get an extra wire run to provide three-phase power down on the farm. It was supposed to provide power for an arc welder he never bought. We had two transformers instead of the usual one as a result.

It's not a house.. It's a 30 sq m studio in a fresh YIT building. I believe the apt only has one phase, and I can't recall apartments with more than that. Private houses yes. I meant kilowatts per hour with my kwth.* The power socket for the oven stove has 40 amps. Rest if the sockets are 16 amps each, and the full power switch is, I believe 60 amps.

There is no gas in Russia in buildings which are higher than, I believe 5 levels. It's somehow related to safety, I'm clueless for what reason is it this way, but I prefer the electric stove anyways: faster, more efficient & less heat generated at home, which causes less temperature imbalances. It also requires less temperature protection for the stuff that's around the stove.

Well, the house may very well be with three or whatever count of phases. Just not to make people mess with it, they maybe cycling it on the apartment levels. If say, there are 600 apts, each phase to be used by 200.

Hm, A 9 kW grill to make my burgers in some 3 mins.. Could be nice. But the problem is that I don't like fried food. Could add some microwaves & air heating though. And, oh well.. Make it heat all house by the way.

Oh, & another thing about Russia & energy.. There isn't as much as everyone is thinking everywhere, both in Russia & abroad. Russia is the country that is in absolute terms most rich with natural resources overall, as well as energy overall, and as well as gas overall. But, it's also a pretty big country. The population is over 140 mil, and the resources are often in difficult to access(remote, & sparsely populated) areas. So actual per capita amount of energy ain't that big: Canada's lands are wealthier with energy on a per capita basis, while say Norway dwarves both mentioned countries.

*- I'm clueless why did I add the time measurement unit there, it's not batteries after all.

Append:
About "null" vs "neutral".. Well, in Finland you maybe calling it null, it's also called this way in Russia. But in Russia it's called this way in Russian, & in Finland I suppose you use a Finnish word. So if they say it's neutral in English, I think it is.

I didn't realize that "YIT" was an organization... The Web told me it was a racial slur used in Russia for Jews or something.

You didn't die! \o/