Power Assumptions for a 3-Phase Socket: Comparing 230V General Purpose Circuit (2kW) & Garage Usage

For the 230V general purpose socket circuit, the installed power is 2kW, and how much for a 3-phase socket? Specifically, it is about one 3-phase socket in the garage - of course, it is not known yet what will be connected there.

Buddy, it depends what 3-phase socket you put on. You have 16A, 32A, 63A and the rest is calculated from the formula. Just take into account that you have 400V there, not 230V
greetings

And one more thing, as far as I know, the energy company gives a power allocation for a single-family house about 9kW, so you will probably only have a 16A socket.

How can I connect this 16A 5x2.5 or 5x4 socket?

5x2,5

5 * 2.5 is enough because the long-term load capacity of such a cable is over 20A, but I wonder if for the 32A socket it is possible in practice to 5 * 4 because in the load capacity tables it is on the border of 4 and 6

This is what I "reworked" according to the new 5x4mm regulations

If you are allowed to know, with what new regulations. As far as I know, in these new HD standards there are no changes in the way of calculating circuits or new tables of long-term load capacity of cables.

I am also not an electrician, but I have a good advisor in whom I have 100% confidence (he is not a trickster).
I installed the YDYP 5x4 cable

ps

He had in mind the possible connection of a saw, welder, small concrete mixer, etc.
(do you want to provide specific recipes?).

Greetings.

a 15kW / 400V motor can safely operate on a 5x4? cable ..........

Deviating a bit from the problem, I had a 5x1 connected to the water heater and, surprisingly, the cable was soft like rubber and was lying loose on the wooden ceiling for probably 2 years (it did not bother anyone).
ps

It bothered me (although 998 is a toll-free number).

Rather, it must be a 5X4mm2 cable for a 32A socket. I misread the long-term load capacity table of cables.
The permissible current carrying capacity for a 5X4mm2 cable laid directly in the wall is 32A.

Fortunately, you found your friend, because you could have misled the questioner.

ps

If you have the opportunity (and financial resources), it is better to use 5x5 (5x4 is the minimum acceptable cost of a meter, about PLN 7.5).
I decided on the second option, the more that I do not know what to connect to this socket now, and I am also thinking about the future.
(I did it once and well for years)

Fortunately, he asked for socket 16A, and 32A is our consideration.

I agree with your opinion.
So, in your opinion, what is the questioner supposed to do?

A colleague asked about the 16A socket and we answered with Arturo2005 that 5X2.5 would be enough.
As for the 32A socket, 5X4 should be enough.
greetings

and where can you buy a 5x5? cable, unless it is the actual cross-section of a Chinese 5x6?, and seriously, cables laid permanently, multi-strand, laid directly on the plaster or in plaster with a number of wires 5-6 for copper belong to the V (fifth) class load capacity at the design temperature of 25 ° C and their permanent load capacity is: 31A for 4mm? and 24A for 2.5mm?, so I see no reason to use the 4mm? cross-section, for example because of the protection (I assume that it will not be greater than C25A), it is enough cross-section 2.5mm?, the only justification for a 4mm? cable would be its length, but please note what length it would have to be if the max. the resistance of a multi-core cable is for: 4mm? - 4.5 ? / km and for 2.5mm? - 7.15 ? / km.

I decided on the second option, which the questioning colleague will decide, I don't know.
Personally, I assumed that it is better to have something in reserve than to "scratch" the walls and plaster because the cable cross-section is too small.
I don't know how my colleague will do it, but I just presented how I did it on my own example.

ps

I wrote that I am not an electrician, if there are other opinions, I agree with them, but I will do it "my way".
(I do not know what to connect yet "and you already know what and how much" electricity "needs?)

Greetings.

Thanks for your comments.
Summing up, for the 16A socket, 5x2.5 cable and 5x4 mm2 for the 32A socket.
5x5 doesn't really exist ??

5x5mm? does not exist according to the standards. For 32A socket - 5x4mm? as shown in the previous discussion. The socket is one degree higher, it is even better because it does not heat up so much when continuously loaded with the rated current.
I saw sockets with 63A written on them, but with this current they got hot and on the larger 125A the load in the store was only limited to 5 hours of work.
Stock will never hurt within reason.