Electrical cable "torn" what to do?

: so now the empty conduit and cable would be defective?! Unless everything is laid in Stapa conduit ;-)

@TE: to me it also looks like a small junction box would still fit in there (approx. 4 x 8 x 4 cm) I would reclamp the cable inside there. That would be the alternative to relaying.

then the empty conduit and cable are defective now?!

Correct. But as I understand it, the floor now has to be opened to replace the cable. This means a corresponding effort. This also includes re-tiling the affected areas. Which could have been avoided with a conduit. Thus less dirt and it would be faster as well. Cable out, coupling over conduit, new cable in, and done.

to me, it also looks like a small junction box would fit in there (approx. 4 x 8 x 4 cm). I would newly connect the cable inside there. That would be the alternative to relaying.

I don't think a junction box in the floor is a very good idea.

Right. But as I understand it, the ground now has to be opened to replace the cable This means a corresponding effort. This also includes re-tiling the area. Which could have been saved by using a conduit. Thus, less dirt and it would also be faster. Cable out, coupling over conduit, new cable in, and done. I don’t consider a junction box in the ground to be a very good idea.

Ok, that’s true. However, pulling the cable afterward through the corrugated conduit doesn’t always work. I would still rather use a small junction box or, even better, a coupling. The latter is also VDE-compliant.

Yes, that's how I would do it too... just buy a coupling, if necessary fill it with casting resin, and done...