ᐅ Electrician drills a hole in a partition wall.

Created on: 15 Aug 2015 16:45
L
Legurit
Hello everyone,

Today the electrician drilled the outlet holes and chased the slots on the upper floor. In the children's rooms, there should be an outlet on both sides of the partition wall – he drilled so that the outlets are exactly opposite each other, leaving a more or less large hole in the wall.
My immediate reaction was one of concern. The wall is made of 115mm (4.5 inches) calcium silicate hollow blocks. I am somewhat worried that the sound insulation might be completely compromised now. Should I ask him to close up one side and drill again about a meter further along, or is it not as serious as I fear?

Thanks for your input!

*drills (title)
L
Legurit
15 Aug 2015 18:18
No, that’s what I meant by the shortest route. Either on the floor or towards the attic, bundled up there and then routed through a small shaft towards the utility room.
So you mean the hole itself isn’t a big deal? Just make sure they seal it properly?
T
toxicmolotof
15 Aug 2015 18:22
I’m not an expert, but to my knowledge, 11.5cm (4.5 inches) thick walls should not be horizontally chased (or only very minimally). You should ask someone who knows the regulations.

You won’t solve the “problem” by patching it. It’s better to get a few other opinions.

If it remains like this, it will definitely be a weak spot, as already recognized.
L
Legurit
15 Aug 2015 18:24
Horizontal chasing is generally not allowed in load-bearing walls. Otherwise, up to 1.25 m (4 feet) is permitted, but it should be avoided.
T
toxicmolotof
15 Aug 2015 18:28
As far as I know, this applies only from 17.5cm (7 inches) thick bricks. Our electrician considered it a no-go to run horizontally through a 11.5cm (4.5 inches) thick wall.
Jochen10418 Aug 2015 12:15
BeHaElJa schrieb:
I assume the reason he did it that way is to have cable slots on only one side.

It was important to me that each room is connected to a separate circuit breaker. If he connects these two sockets on a single supply line, that can no longer be guaranteed.