Hello
In my garage, I have a 12-meter long box up in the ceiling that is like a chute, which currently serves the upper floor with sewage but also contains electricity and central vacuum for both the garage and the floor above. I don't know everything I might want to run through it in the future, but it could be anything from water pipes, compressor hose, or charging for an electric car (which today is three-phase, but who knows what will apply in 10 years).
When you want to make it as flexible as possible for all conceivable future needs, what is the best conduit to use? I'm thinking of doing something like this:
Condition:
At one end, there is an equipment room, water, power distribution board, and sewage and everything else that might be needed. This section is existing and can be considered the source/supply for the entire chute.
Idea:
At both ends and in the middle, I plan to install an inspection hatch (about 5 meters between these points) so that the contents can be accessed.
Between these, I plan to insert 3-4 empty conduits of some sensible kind, either yellow corrugated pipes for underground electricity or 75mm sewage pipes. That should make it possible to push in electrical cables, thick cables, both today's three-phase lines and possibly thicker ones for future charging. It should also be possible to get in pipe-in-pipe for water lines. I think. If the outer pipe for the water doesn't fit, it still feels OK.
However, I'm not sure if you are "allowed" to run electrical cables (including loose wires) in sewage pipes. Is the yellow corrugated pipe particularly flame retardant or something else required by law? I realize that I can fit a regular cable conduit in these, but now I'm thinking completely freely. What would you choose? I've also understood that some cables need some kind of ventilation. I don't remember the details, but let's say in the future we have 3 x 32A charging for the car, then I realize that there can be some heat development inside the pipe.
What channels should I run to have maximum flexibility later and not regret it? I'm thinking of an outer diameter under 100mm, preferably closer to half, so the box doesn't become too damn big.
I attach a picture showing approximately half of the box in length, which should be complemented with some channels to later be plastered over and become part of the ceiling.
Thanks for the tips!
In my garage, I have a 12-meter long box up in the ceiling that is like a chute, which currently serves the upper floor with sewage but also contains electricity and central vacuum for both the garage and the floor above. I don't know everything I might want to run through it in the future, but it could be anything from water pipes, compressor hose, or charging for an electric car (which today is three-phase, but who knows what will apply in 10 years).
When you want to make it as flexible as possible for all conceivable future needs, what is the best conduit to use? I'm thinking of doing something like this:
Condition:
At one end, there is an equipment room, water, power distribution board, and sewage and everything else that might be needed. This section is existing and can be considered the source/supply for the entire chute.
Idea:
At both ends and in the middle, I plan to install an inspection hatch (about 5 meters between these points) so that the contents can be accessed.
Between these, I plan to insert 3-4 empty conduits of some sensible kind, either yellow corrugated pipes for underground electricity or 75mm sewage pipes. That should make it possible to push in electrical cables, thick cables, both today's three-phase lines and possibly thicker ones for future charging. It should also be possible to get in pipe-in-pipe for water lines. I think. If the outer pipe for the water doesn't fit, it still feels OK.
However, I'm not sure if you are "allowed" to run electrical cables (including loose wires) in sewage pipes. Is the yellow corrugated pipe particularly flame retardant or something else required by law? I realize that I can fit a regular cable conduit in these, but now I'm thinking completely freely. What would you choose? I've also understood that some cables need some kind of ventilation. I don't remember the details, but let's say in the future we have 3 x 32A charging for the car, then I realize that there can be some heat development inside the pipe.
What channels should I run to have maximum flexibility later and not regret it? I'm thinking of an outer diameter under 100mm, preferably closer to half, so the box doesn't become too damn big.
I attach a picture showing approximately half of the box in length, which should be complemented with some channels to later be plastered over and become part of the ceiling.
Thanks for the tips!
Take what you have in your pocket or behind the house, you can pull anything together in the pipes, just keep in mind that water pipes can condense and drip, so they might need their own channel for any insulation. Don't be stingy with pipes if there's space, better to have too much than too little.