ᐅ Installing Electrical Wiring in the Ceiling – From Light Fixture to Switch

I’m just asking out of curiosity; the work will be carried out by a professional (who is currently on vacation, so I’m asking here).

There are certainly many different approaches. But is it correct that a very common method in new construction is to install as many conduit pipes as possible in the ceiling and then simply pull all the cables through these conduits to the boxes?

Presumably, all the power outlets are wired directly from the distribution board. But what about the lights? Are the conduits for the lights run directly to the locations where the switches will be installed? Or are these conduits also routed first to the distribution board?

This concerns a “traditional” electrical installation. No bus systems or similar.

Best regards

I’m not a professional...

A lot has already been installed in our ceiling. However, cables were laid at the same time. I hardly think anyone wants to pull cables unnecessarily through empty conduits. Or are you talking about recessed lights? Usually, only junction boxes are planned for those.
In our case, however, it’s a KNX installation.

If you’re not using KNX and don’t plan to “retrofit” it later, why would you run cables from every lamp back to the distribution board?

No idea, it doesn’t entirely make sense to me either, but I wasn’t really sure myself.

One advantage could be the ability to control lights with different switches later on. Whether this will actually be needed at some point depends on the homeowner’s willingness to make changes.

In a traditional installation, the wiring runs directly to the switch, as no one else in the distribution board can handle the large amount of copper otherwise.

Lumpi_LE schrieb:

With a traditional installation, the connection goes directly to the switch – otherwise, no one can manage the large amount of copper in the distribution board.

Not only that, but the loop resistance also increases due to unnecessary cable length,