ᐅ Electrical Installation for a New Single-Family Home – Assessment and Suggestions

Created on: 19 Jun 2021 23:28
D
dynaudio79
dynaudio7919 Jun 2021 23:28
Hello dear forum members,

The electrician has been working on the electrical installation in our shell construction for three weeks now, progressing step by step. Beforehand, I discussed some of my requirements with him. Now that he is almost finished, I have some doubts about whether everything has been done correctly. Without criticizing anything upfront, I would like to ask you to take a look.

This is mainly about the method of installation, not about why there are so few outlets in certain places—that can be sorted separately.

Best regards,
Steffen

Construction site with exposed brick walls; cable bundles lying on the floor along the wall.


Cable bundles of white and orange wires passed through a hole in the wall, tied together.


White electrical cables lying on dusty construction ground, tied in loops, a cable corner visible.


Plastered brick wall with vertical conduit and multiple cable penetrations with cables at the bottom.


Exterior view: door frame, black sealant around cable at the foundation of a brick wall.


Door threshold with black sealant around conduit; cable reels and construction waste outside.


Basement room: exposed green-yellow and white cables on dusty floor near a brick wall.


Construction site: unplastered brick wall, white and orange cables laid along the floor.


Unplastered interior: orange brick walls, visible electrical work, and window to the outside.


Shell construction: exposed brick wall with visible wiring and cables, plaster residues.
M
Malunga
19 Jun 2021 23:38
Looks clean to me, I think…
H
hanse987
19 Jun 2021 23:49
The data cables have been installed fixed in place and not laid for easy replacement. I would always install them to be replaceable, as required by DIN 18015, although there are opposing opinions saying that the cables are rarely ever replaced or can’t really be pulled out of the conduits anymore.

In picture 2, the data cables appear slightly stretched, resulting in a relatively small bending radius at the floor penetration. Whether this poses a problem is difficult to determine from the photo.
N
nordanney
20 Jun 2021 00:11
All in all, basically okay
dynaudio7920 Jun 2021 01:46
In my opinion, the following points are not acceptable:

  • Communication cables installed non-interchangeably and too close to high-voltage power lines
  • No conduit protection for cables in door areas
  • The minimum distance to the wall of at least 15cm (6 inches) is not maintained
  • The cable routing under the window is not compliant or safe as it is

3D diagram: ceiling installation zones according to DIN 18015-3 (ZD-r, ZD-t, ZD-w) in the room.
S
Strahleman
20 Jun 2021 08:52
In my opinion, data cables should be installed in conduits, and the underground cable beneath the window is quite inconveniently positioned.