ᐅ Location of electric meter in timber stud wall

Created on: 11 Mar 2021 21:32
B
Barnhouse
Hello, I have a question regarding the positioning of the electric meter and the single-service media entry for electricity. Currently, both are planned to be installed directly within the timber stud wall.

The wall assembly is not quite correct on the drawing yet. We have a stud frame, then OSB, battens as the installation cavity, and on the room side, gypsum fiberboard.

Is this the optimal position, or would it be better to place them within the installation cavity, or completely in front of the gypsum fiberboard?


Technikraum: Stromzähler und Elektroverteiler mit rotem Punkt.
Knöpfchen13 Mar 2021 18:04
If the electricity meter is to be installed in a different room than the main connection, there are generally issues with the utility provider.
According to my utility provider, the main cable must not be routed underground in just any location, and the voltage drop over its entire length must not exceed 0.5%.
Knöpfchen13 Mar 2021 18:18
Barnhouse schrieb:

The electric meter will be installed in our hallway; it’s a small house without a separate utility room. The water meter will be placed in the bathroom—I had a similar question about that.

Yes, placing it in front of the wall makes more sense to me. This way, we would also have the option to install horizontal noggings within the timber frame wall to mount the fuse box.

Possibly, I would skip the gypsum fiberboard at that spot, attach the fuse box directly onto the OSB board, and then enclose it with plywood or similar materials with an access panel, and hang a mirror in front of it.
The mirror would need to be at least 55cm (22 inches) wide and 110cm (43 inches) high, which matches the size of the meter cabinet.
11ant13 Mar 2021 18:26
Barnhouse schrieb:

Maybe I would skip the gypsum fiberboard at that spot, go directly to the OSB, and then enclose the fuse box with multiplex boards or similar, including an access panel, and hang a mirror in front of it.
No, no, the gypsum between the wood and the electrical components definitely makes sense.
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B
Barnhouse
13 Mar 2021 19:32
As described above, the single-pole power feed is at the same location as the distribution board.
The question is only about the depth at which the feed should be installed.
We have a slightly larger box for optional future consumers (meter for photovoltaic system, meter for wallbox, etc.), so mounting it only on the OSB board does not seem optimal to me.
The main question for me is where the main cable that enters the distribution board and the cables leading to the outlets/switches should be routed.

1. Inside the partition wall
2. On the OSB board (without the gypsum fiberboard and installation cavity)
3. Between the OSB board and the gypsum fiberboard = installation cavity
4. On the gypsum fiberboard
Knöpfchen13 Mar 2021 21:57
You can do it however you want.
For photovoltaic systems up to 9.9 kWp, you don’t need an additional meter; it is only required from 10 kWp onwards.