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KNX system in the construction phase / Network cabling and fuses - Part 3

March 18, 2019

 

KNX in the construction phase is an important topic, which is highlighted in this blog article by E-Necker.

 

In the 3rd part on the topic of KNX systems in the construction phase, I would like to go into more detail on the topic of network cabling and fuses.

 

There are many options for selecting fuses: Fuses with tripping delays, fuses with fire protection function or also fuses with combined miniature circuit breakers (with integrated fault circuit breaker).

 

Legal regulations specify which fuses may be used and how. However, there is still room for manoeuvre, so you can assign sockets and light outlets to your own circuits. This gives you the security of knowing that the lighting will continue to function even if a device becomes defective. Nothing is more annoying than when the entire apartment is in the dark due to one defective device.

 

I therefore recommend my customers to secure all rooms separately.

 

When planning a house, it is also important to think about the network cabling.  WLAN access points are getting better and faster, but communication problems or speed losses can still occur. It is still true that a wire connection is faster and more stable than a wireless one.

A larger network cabinet, even if it is not used to its full extent at the beginning, is often better because it can be expanded later (e.g. server for visualizations, network storage, telephone system, Internet modem, etc.).

 

It also makes sense to consider whether the network cabling should be connected to the distribution cabinet so that a WLAN access point, for example, can be installed via a central location on each floor.

 

When planning, one should also consider how many network sockets are required in the individual rooms and where these are to be installed (e.g. with the HiFi cabinet, study, television in the children's / guest rooms, etc.).

 

In view of the growing amount of data, the network cabling should be at least Cat6, even better would be Cat7.

 

Would you also like to provide the garden house with a network connection? Then you can consider using optical fibre - this provides galvanic isolation and prevents any external voltages from escaping.