Electrical planning - How many sockets are enough?

So according to DIN they don't work anyway, only according to VDE. Unfortunately, I can't find anywhere that it must be a conduit and not just a protective tube and that it must be possible to replace it.

NYY may be crushed?

Yesterday I sent an email with these pictures to an independent expert. He is responsible for electrical engineering and installation. Today I talked to him on the phone. He told me that this does not comply with VDE, that we should immediately initiate a construction stop and nothing should be plastered. He is apparently also responsible for fire cause investigation at the criminal investigation department and said that just recently he had a case where a house burned down after 22 years, with the cause: hook nails during installation.

Another expert also said based on the pictures that he does not like it.

The construction manager only says, as long as the electrician approves it and submits some protocols where everything was measured through and everything fits, it is also okay. And if it’s only about the hook nails, they have nothing to do with the interior plaster.

Oh yes, if that is not okay, the entire cable has to be removed, including up to the junction box, which is already behind the plaster.

How does it look with the insulation/sheathing of these NYY cables? They have this thick stiff black outer layer, then a white thin “rubber skin” and then the 3 cables. Do these cables including white or black sheathing have to go into the installation box, or is it enough if it stops before and only the 3 cables go into the box, as shown in the picture?

I am not an electrician, but as far as I know, it is standard to lay the entire cable with the sheath into the boxes. It is supposed to provide protection.

I do come from the industrial sector, but yes, the coating is applied all the way into the can.

Hi, today I had a meeting with the project manager of the electrician company.

He went through everything with me and mostly agreed with me.

So the sheaths belong at least up to the box, if you push them in too far, you simply don’t have any space inside anymore.
He is having everything fixed everywhere and a sheath pulled over by the two guys who did everything for me.

The cables, meaning the NYY cables (underground cables), are not pinched and were also measured.
Nevertheless, he is removing the hook nails and having a perforated tape placed over them.

He is doing nothing with the protective conduit. That would be fine because with so many corners and that length, you can’t pull any cable through anymore, so it is really only for protection and not for later replacement.

In all the walls, sometimes even under the plaster, there were still hook nails.
Although one worker told me they all come out, I pulled out at least 10 nails alone in the office and guest WC.
Some cable ducts were still full of those things!
The project manager took the two employees in hand rather politely and told them again that that must not happen! That they absolutely have to come out and only serve to fix the plaster.

I think the two guys had to work overtime today =)

So apparently everything will be fixed and I am at least a bit relieved.

The two guys who were on the construction site the whole time seem to be very young!
Good that everything is public and there is Facebook ... the "older" one seems according to FB to have only started his apprenticeship there in September 2014, so probably freshly trained.
The younger one, from what I gathered a bit, talked about something like an intern and then an apprentice. Apparently also just starting with the apprenticeship.
I wouldn’t mind if at least the foreman takes over the work afterwards!

Because if I hadn’t been so on top of things and annoyed, there would now be hundreds of hook nails in the wall under the plaster and I would have rust problems on the walls later!

Tomorrow morning I will go and look at everything again!

Actually the interior plaster was supposed to come today, but I doubt they will even start tomorrow! Like every trade so far!!!! -.-

What do you say about that? Am I right?

Just as a comparison, how it looks with us.. I think the Elis wanted to finish quickly with you.

So I can fully understand you.

But I believe normally applied acrylic nails cause no problems with [übergeputzt] at all.