Flat electric cables in the house

Projekty i technologia Technikalia Ogólnie 💻
1

In The Netherlands we use round cables for the 230V electricity in our house, however I found that in Poland people seem to use flat cables. I guess the reason is that in NL the cables need to be (by law) in a separate PVC pipe (which is round), whereas in Poland the cables supposedly can just be put inside the plaster-work (and therefore benefit from being flat).

However, the problem I’m running into is that all the plugs I can find (like Wtyczka inwerter fazy PCE 400 V 32 A (for 400V) or Wtyczka przenośna PCE z uziemieniem 16 A 250 V niebieska or even electric distribution boxes have cutouts for round cables. How is this usually remedied? just squish in the cable and use some sort of glue to make it close, or is there a better way?

2

Flat cables are only for connections in the wall. The power supply goes to a contact in the wall or to a light switch.
But for connecting electrical appliances, round cables are used, and these as much as possible can also be bought in construction stores.

3

Thanks, makes sense! However the things that I want to mount on the wall (like for instance this switch Łącznik PCE w obudowie 16 A 3P IP67 ) come with a M25 or M30 round holes.

I see this kind of stuff on tme: 106 FL M25 6 30 OBO BETTERMANN - Dławnica | M25; 1,5; Zastosowanie: na przewód płaski; OBO-2013006 | Transfer Multisort Elektronik Polska. It looks like it could work, but maybe there is a better way and I’m missing something.

4

There is also stuff like this: 53611001 LAPP - Wkład do dławnicy | M20; IP54; kauczuk NBR; Il.otw: 1; -40÷100°C; DIX-ASI-M20 | Transfer Multisort Elektronik Polska, which I think is just soft gummy stuff that will kind of fit anything…