Supply line for kitchen island with induction and 3 sockets

The professional is always obliged to deliver according to the currently recognized rules of technology. These do not necessarily have to comply with the DIN standards

Yes, and specifically? Electrical wiring in the heated screed does not comply with DIN 18015-3. Is laying it in the heated screed permitted in the sense of the a.a.R.d.T.?

Well, basically, laying pipes for underfloor heating is possible as far as I have read. Apparently, a distinction is made between electric or hot water. I think using I would or one could won't get the OP any further. Therefore, my suggestion would be to leave it in the hands of a professional who will do it sustainably.

Best regards, Sigi

Yes, and specifically? Electrical wiring in the heated screed does not comply with DIN 18015-3. Is installation in the heated screed permitted according to state-of-the-art regulations?

I never claimed to be an electrician, but answered your question

Rhineland greetings

but answered your question

Then I must have formulated the question poorly. I would like to know, for the specific case, whether DIN 18015-3, which describes the installation zones, and possibly also DIN 18560-2, which contains rules for the screed, must be complied with by an electrician working for a private customer in a single-family house. General statements about the difference between DIN and a.a.R.d.T. do not help here.