ᐅ Are electrical cables properly insulated?

Hello,

due to an error, the outlets had to be moved about 50cm (20 inches) to the left.
I’m a bit skeptical whether this was done properly,
it looks quite amateurish to me. As far as I know, cables embedded in the plaster must be double insulated, or a junction box should be installed. The electrician said everything was done according to regulations, but you often hear such statements on construction sites, and 80% of the time it’s still wrong. Just take a look at the pictures.

Thanks in advance

How were the individual cables connected? All you can see is something red, which might be a splice connector. And a lot of insulating tape, which looks quite messy. Junction box terminals could have been used.

Hello,

Do I understand correctly that the three boxes on the right will be plastered over and the three boxes on the left will be used instead?
At the same time, because power is only available there, the "old" boxes are used as junction points?

If that is the case, this violates the DIN VDE standards. All junction points must remain accessible, for example, under a socket outlet or a blank cover.

The way your electrician has implemented the junction point, using electrical tape, seems very unprofessional.
Connection terminals, such as Wago 2273 or 273, are used for this purpose.

Suggestion:
The three boxes on the right should not be plastered over but fitted with socket outlets as well.
The pure material cost for a standard socket insert plus frame is around €5 (approximately $5.50).

This is how it looks: the right side will be closed off while the left side remains open. In the third picture, you can see clamps or whatever those might be. Even though I am not an expert, I already knew that connections must always remain accessible.