ᐅ Wall chase 11.5 cm / Alternatives

Created on: 28 Sep 2016 17:07
J
jan2110
Hello,

During our renovation, the house electrical system will be updated. The electrician who will carry out the work offered that I could do the chase cutting myself to save some costs. He would mark everything, set up the machine, and provide a brief instruction.

Most of the walls are 11.5 cm (4.5 inches) thick. Vertical chasing is not allowed there. Currently, there are also cable ducts installed. Is it still permitted to use these nowadays?

Horizontally, conduits with two conductors are installed. It would be possible to simply chase over them and install the new cables flush-mounted (such as NYM cables and network cables).

What alternatives are there for vertical chases, and what is allowed?

Best regards,
Jan
wpic28 Sep 2016 19:03
Horizontal and diagonal slots in 11.5 cm (4.5 inch) masonry units are not allowed. The electrician should definitely be aware of this.
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jan2110
28 Sep 2016 19:26
I have read the same. What alternatives are there?

The old empty conduit pipes already embedded in the masonry are unfortunately too narrow for NYM cables and network cables.
Musketier28 Sep 2016 19:29
Install a drywall partition in front of it!?
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jan2110
28 Sep 2016 19:34
I have already been considering using cable ducts in my plans...
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garfunkel
28 Sep 2016 21:34
Why use an NYM cable inside a conduit instead of individual wires? Then you might be able to use the existing conduit.
There probably aren’t many alternatives if it’s prohibited.
A drywall partition for just a few cables... Well, if you have space, okay, but it seems rather impractical if it’s only for two cables—especially since, in my opinion, the latter can also be replaced by Wi-Fi.
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nelly190
28 Sep 2016 22:38
The question is, who prohibits chasing in which context. Sometimes it’s worth questioning things.

Could it be a standard that applies to new constructions? I mean, the wall is currently chased as well and it’s still standing.

What about the further wall structure? If there is a very thick plaster layer, maybe you can chase the plaster and then plaster over the conduit afterwards.