Hello everyone
First of all:
We have the inspector's permission to install the cables, and that was the question that concerns us and is currently unresolved!
I am an electrician/electronics technician, but I come from the industrial sector. Therefore, I am not familiar with the relevant residential building regulations. The inspector is sick and unreachable, but time is pressing...
House wiring (new construction / prefabricated construction / timber frame).
What is currently considered the "state of the art"? We plan to separate the outlets and lighting circuits.
Supply line for outlets: NYM 2.5mm² (5 AWG). For larger rooms, is it more practical to have two branch circuits, for example in a living room with about 10 outlets?
And generally, is it allowed to connect all 10 outlets in parallel on one supply line, or is a distribution box required on site? We want to avoid a distribution box if possible.
Background: we want to install the cables over Christmas and the days following. The inspector is currently sick and unreachable...
We have the inspector's permission to lay the cables, and this is the question that worries us and is still open!
As mentioned, I am an electrician/electronics technician from the industrial sector, so the applicable standards in house wiring are unfamiliar to me.
Good luck
dettec61
First of all:
We have the inspector's permission to install the cables, and that was the question that concerns us and is currently unresolved!
I am an electrician/electronics technician, but I come from the industrial sector. Therefore, I am not familiar with the relevant residential building regulations. The inspector is sick and unreachable, but time is pressing...
House wiring (new construction / prefabricated construction / timber frame).
What is currently considered the "state of the art"? We plan to separate the outlets and lighting circuits.
Supply line for outlets: NYM 2.5mm² (5 AWG). For larger rooms, is it more practical to have two branch circuits, for example in a living room with about 10 outlets?
And generally, is it allowed to connect all 10 outlets in parallel on one supply line, or is a distribution box required on site? We want to avoid a distribution box if possible.
Background: we want to install the cables over Christmas and the days following. The inspector is currently sick and unreachable...
We have the inspector's permission to lay the cables, and this is the question that worries us and is still open!
As mentioned, I am an electrician/electronics technician from the industrial sector, so the applicable standards in house wiring are unfamiliar to me.
Good luck
dettec61
kbt09 schrieb:
Do you even have a plan for what you want where, how the light switches should control things, and so on? I think you really need to get professional support and focus on the planning phase.
Who is responsible for sourcing the cables? As I said, I am an electrician. I planned the electrical system for my own house and rewired everything myself at the time, already considering future multimedia needs. I even installed network cables back then, which are now mostly obsolete.
For my daughter’s house, which was done 5 years ago in coordination with the contracting company, there is a basic plan for what goes where and how things should be switched. This is purely about the installation of the sockets. The question is whether it is allowed to wire them simply in parallel or if multiple branch circuits per room need to be installed from that point on.
In the kitchen, it’s clear to me because of the high load. The kitchen has at least 5 supply lines plus lighting.
dettec61 schrieb:
As I said, I’m an electrician. I planned all the electrical work in my own house and rewired everything myself back then, already considering the (then) future of multimedia. What exactly is stopping you from doing the same again?
dettec61 schrieb:
I even installed network cables, which are hardly useful today. Nonsense, why would they suddenly be useless?
dettec61 schrieb:
For my daughter’s house, everything was done five years ago in coordination with the contractor. The basic plan – what should go where and how things should be switched – is in place. What exactly is stopping you from doing the same again?
dettec61 schrieb:
It’s purely about the installation of the sockets. Whether it is allowed to wire them simply in parallel or if multiple branch lines have to be installed per room from that point.
In the kitchen, it is clear because of the high load. The kitchen has at least 5 branch lines plus lighting. That’s the big question, isn’t it? Well, honestly, do as you please, but it is definitely permitted to wire socket after socket after socket after socket after socket. That is the current standard.
i_b_n_a_n schrieb:
Well, without being an electrician, you can say there is quite a lot to do yourself..... Yes, that’s the idea. It should be 2.5mm² (about 13 AWG) for the power outlets, and we want to avoid separate junction boxes. I don’t think going with 3x1.5mm² (about 15 AWG) makes sense. It could get tight if, at some point, a space heater or similar device is needed. The kitchen will definitely have 2.5mm² (about 13 AWG), lighting will have 3 and 5 circuits of 1.5mm² (about 15 AWG).
We want to avoid smart devices, although that’s not a problem with light bulbs, and the outlets will all have deep boxes for possible actuators.
In your case, for example, most of the wiring runs along the floor. Opinions vary on that, of course. Intermediate connections to the outlets are fine, but the main supply cables should come from above.
We installed 5x1.5mm² cables in the rooms so that later, if needed, socket groups can be switched to different phases via wiring. If a single fan heater later has a problem with 1.5mm² cable, then either the heater is defective, you have wiring errors, or you intend to operate five fan heaters in the same room.
In our case, everything is routed through the floor due to a solid wood ceiling and no suspended ceiling, so there was no other option.
In our case, everything is routed through the floor due to a solid wood ceiling and no suspended ceiling, so there was no other option.
i_b_n_a_n schrieb:
what exactly is stopping you from doing that again? That’s not the problem...
Nonsense, why would they suddenly become useless? Over 30 years ago, 10 Mbit was the standard... No one believed in 1 or 10 or even 100 Gbit...
what exactly is stopping you from doing that again? As I said, the plan exists.
THAT is the question of all questions? Well, I’d say do whatever you like, but it is definitely allowed to wire socket after socket after socket after socket after socket. That is the current standard. Alright, it could have been possible that the current standard requires working with several supply lines after a certain number.
Or using a spur cable with a junction box to split the circuit somewhat, so there aren’t so many connection points (contact resistances).
This is how it is handled in industrial settings, at least.
i_b_n_a_n schrieb:
We installed 5x1.5mm² (5x16 AWG) cables in the rooms so that later on, if needed, socket groups can be switched to different phases. If a single fan heater has a problem with 1.5mm² (16 AWG), then either the heater is faulty or there are other wiring issues (or you want to run 5 fan heaters in the same room).
For us, all wiring runs under the floor because we have a solid wood ceiling with no suspended ceiling, so there’s no other option ;-) Well, 1.5mm² (16 AWG) corresponds to a 10A fuse. We have a 2.5kW fan heater. Over time, that’s going to be tight. In case of damage, drying equipment draws 2.8kW (3,800 BTU/hr)...
Just plugging in an angle grinder—boom, the fuse blows....
Cables should run through the walls, not through the ceilings...
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