ᐅ Reserve two rows in the distribution panel for the utility provider?

Created on: 24 Nov 2017 23:00
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stefanc84
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stefanc84
24 Nov 2017 23:00
Hello,

In our new build, we have planned a 4-compartment cabinet, with 3 compartments for distribution and 1 compartment for the meter. It has 7 rows. Due to KNX, the cabinet is already quite full, but there is actually no more space available in the technical room.

Our electrician, who has not yet worked with our utility company (Bayernwerk), told us that the utility wants to reserve 2 full rows for themselves. In our case, that is 3 x 2 x 12 = 72 DIN modules (TEs). We still have that much free space, but then the cabinet would be 99% full. The spatial conditions do not allow for more compartments.

Questions about this, maybe someone can answer them:
- Is anyone familiar with this regulation?
- Where is this requirement from the utility documented? I couldn’t find anything about it in the technical connection conditions (TAB).
- Why does the utility need 72 DIN modules? If we only had one compartment, apparently 24 modules would be enough for them.
- And most importantly: Are there no exceptions? Are we supposed to build a new house, or how do they expect this to work?

Best regards
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ONeill
25 Nov 2017 07:05
Generally, something like this should probably be included in the technical connection conditions. Otherwise, try calling the distribution network operator directly.
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kkk272729
26 Nov 2017 13:31
In our case, the two rows above the meter were supposed to be reserved for the utility provider. They might install a modem or similar device for automatic meter reading there.

However, this only became apparent during the final inspection. The electrical work was done by ourselves. I did not make any changes afterwards.

When the utility provider came to connect everything, the process went smoothly without any problems.
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Bau-Schmidt
26 Nov 2017 16:23
What kind of heating system will you have?
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PhiTh
30 Nov 2017 09:30
I also think the key lies in the heating system... With a heat pump, you quickly end up with a second meter and also a tariff switching device included... We have a five-module meter and distribution cabinet in the basement with some space to spare, plus three additional distribution boards for the garage, the granny flat, and the upper floor :-( It really adds up, especially when you add some KNX actuators...