Hello everyone,
How would you plan this for a new build?
Assumption: From the house to the garage, a high-voltage power supply is routed through the last available multi-utility conduit (a large-diameter empty conduit) to install a sub-distribution board. From there, the connection should go to the wallbox inside the garage. As far as I know, the wallbox requires a control signal from the utility provider for dimming.
Is it a good idea to run LAN cable in the same conduit as the high-voltage power cable, or is that not advisable? Alternatively, could a smaller conduit be placed inside the larger one to keep the cables separated?
Or should the LAN cable be routed separately through a drilled hole in the slab, parallel to the garage? (We actually wanted to avoid drilling just for a LAN cable.)
Or use Wi-Fi, if allowed? (Distance from the router to the garage is about 6-8 m (20-26 feet).)
Any advice is greatly appreciated.
How would you plan this for a new build?
Assumption: From the house to the garage, a high-voltage power supply is routed through the last available multi-utility conduit (a large-diameter empty conduit) to install a sub-distribution board. From there, the connection should go to the wallbox inside the garage. As far as I know, the wallbox requires a control signal from the utility provider for dimming.
Is it a good idea to run LAN cable in the same conduit as the high-voltage power cable, or is that not advisable? Alternatively, could a smaller conduit be placed inside the larger one to keep the cables separated?
Or should the LAN cable be routed separately through a drilled hole in the slab, parallel to the garage? (We actually wanted to avoid drilling just for a LAN cable.)
Or use Wi-Fi, if allowed? (Distance from the router to the garage is about 6-8 m (20-26 feet).)
Any advice is greatly appreciated.
N
nordanney15 Apr 2026 06:56Bradyx86 schrieb:
Is it a good idea to run LAN cables in the same conduit as high-voltage power cables, or is it even possible? Sure, you can do that.
The discussion with the electrician is still pending, but according to AI, there are issues due to interference (with one less shielded cable) and especially for safety reasons (electricity can transfer to the LAN and cause damage in the house). Is there any truth to this?
N
nordanney15 Apr 2026 09:03“Problematic” can mean many things… Complying with DIN VDE, the AI gave the correct answer. Without insulation faults, you won’t have any problems.
Please ask ChatGPT how many “e”s are in the word strawberry. Then you will have an idea why AI is not the ultimate authority.
If you are concerned, have a thin, flexible empty conduit pulled inside a thicker one. This is technically correct, but in practice not really different.
Monday: installed a new wallbox at my ex’s place. Guess how! Similar to my own installation from four years ago. Both done by two different professional companies.
Please ask ChatGPT how many “e”s are in the word strawberry. Then you will have an idea why AI is not the ultimate authority.
If you are concerned, have a thin, flexible empty conduit pulled inside a thicker one. This is technically correct, but in practice not really different.
Monday: installed a new wallbox at my ex’s place. Guess how! Similar to my own installation from four years ago. Both done by two different professional companies.
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