Countries with 4 Wire Low Voltage Distribution Networks?

All of them.

You could have looked that up in Wikipedia.

Is it also the case that the majority of dwellings (houses or/and flats) are connected to one phase conductor and one neutral conductor only in every country?

Generally, yes.

US tends to have 2 phases and a neutral. (120V to N & 120V to N - we like our voltage low on lights and receptacles so we don't get fried)

Generally no. It is more balanced to supply all three.

Nice link

Many years ago, when I was just a browser here, one of the older members sent me a link to electricity around the world. It seems to be the same information as the link you posted. Thanks for it, I lost the old link when I retired.

Thank you Andy, that is a great answer and is exactly what I am trying to find out! Germany therefore is a country that provides homes with access to three phases as standard, although there exists a legacy of homes that have installed access to a single phase only. Could you estimate the proportion of German homes have access to only a single phase and how many to three phases?

Sorry, no idea.

I have never ever seen a single phase house here. All have had 3 phase.....

My house is 107 years old and has 3 phase power at 240VAC Phase to Neutral., though it was originally 3 phase 220VAC phase to phase many years ago....more than that I have no idea....

I do live in what was called the "American Sector" for many years. I don't know if that changed anything or not!!

A search on the Internet did not bring up a single reference to single phase houses in Germany.....

Again andy, exactly what I wanted to know, thank u so much for that. I am amazed at how difficult this information is to come by, I have not found a single source that provides it so far!

GA from me Andy. Just a correction, it's 230 V / 400 V nowadays. It used to be 220 / 380, before being harmonised at 230 (because of some guys who had 240 V).

In Brazil, you will get 1, 2 or 3 phases supplied depending of the load on your contract. 1-phase supply is cheaper.

brgds

Snel

I am also interested in what the situation is in other countries?
The data provided in the table that "North of 60" provided is great, but it does not indicate what is installed to homes and small businesses as the modern day standard by distribution network operators. I am very interested in this information and would welcome any pointers to references where it may be detailed.....

It's either single- or three-phase, as detailed above, except north America, where it can be split-phase 220v instead. You've already had this stuff above.

Hi Crabtree, maybe I wasn't too clear, in the UK you can get single or three phase supplies. However, take a new domestic housing estate as than example, it would be fitted with single phase cables to homes by default and the customer pays for a new cable if they want a three phase connection.

My interest is in the following:

What are the current default working practices in other countries?

(For instance, I suspect that in Germany and Denmark three phase cables would be installed by default)

What were the legacy work practices if they have changed recently?

Essentially I want understand (roughly) the proportion of homes in countries that have three live phases connected and the proportion that only have one?

True serious Engineers do their own research too. But don't feel alone, your not the first student to come here looking for someone to do their homework for them

u clearly don't know the answer, why bother posting?

Also, maybe try googling key words like "research" before u use them in future.

I suspect that no reader here knows the answer to your questions. This thread is suffering from a phenomenon known in military circles as "mission creep".

You're on your own, Mildred.

Oz is the same as you describe the UK. Single phase supplied by default, 3 Ph supplied by request. As per the link supplied 240/415V Standard receptacles, cables, etc are prescribed in AS 3000.

Jim