Installation of Electrical Wiring in Plasterboard Wall with Insulation: Tubing vs. Bare Wires

Hello.
How to make an electrical installation in a plasterboard wall. Do the wires have to be in the tubes or can they lie alone. I would like to add that I plan to insulate the walls with wool, will it not hurt the cables?
Greetings.

There are many tutorials on the web, just ask google for example this
http://budowairemont.knauf.pl/birw/220-Monta%C5%BC+i+naprawa+instalacji.html

Are you asking as who? Investor? Designer? The Contractor?

As a contractor and investor.

Not necessarily. I just have never had contact with an electrical installation in plasterboard and I don't really know what it should look like.

buddy kanzas741 I don't want to be mean but reading your "I had no contact" comes to mind .....

So in your opinion, if I have contact with a computer, I am immediately an IT specialist or if I have contact with water, I am a plumber? Well, there is still a long way to go.

Call an electrician, you will pay but you will sleep well.
greetings

I would advise and personally did so that I put the entire installation in such walls in a self-extinguishing barrier. Of course, I led everything from profile to profile along straight ropes. This conduit is a bit more expensive than the usual one, but it is worth using one for peace of mind.

Added after 1 [minutes]:

I can see that a friend above wrote about this peches

omen600606 wrote:

I would advise and personally did so that I put the entire installation in such walls in a self-extinguishing barrier. Of course, I led everything from profile to profile along straight ropes. This conduit is a bit more expensive than the usual one, but it is worth using one for peace of mind.

Added after 1 [minutes]:

I can see that a friend above wrote about this peches

And what are all the conclusions?

Quote:

... I put the entire installation in such walls in a self-extinguishing protective tube.

Of course, it is logical that the cans for the equipment also do not spread the flame, the author of these words used.
Please present the method of connecting the conduit-can.

kkas12 wrote:

Please present the method of connecting the conduit-can.

If no one answered, please kindly present how this connection should look "godly".

God bless you good man.

And how to enter, for example, such a self-extinguishing box: http://www.meskon.pl/1055-puszki-samogasnace-do-karton-gipsu-modulowe using such a self-extinguishing conduit: http://elektrocave.pl/pl/p / Pipe-corrugated-PVC-1620-conduit / 182 so as not to be sent to hell?

Well, yes: http://pl.traconelectric.com/files/ckfinder/upload/kat/pl/tracon_J10_3.pdf
Card: Metric cable glands with torsion strain relief
or Glands for corrugated pipes .
Or to stop making fire risk theories when the theory has gaps.

Thank you for so much interest.
I have a request for 15kV maciej
Could you post more photos of such an installation ??
Thank you in advance.

one more question: do you need to use conduits or can you just let the bare wire in the wall cover with wool and cover the cardboard with plaster?

kkas12 wrote:

Oh yes:

Thank you.

kkas12 wrote:

Or to stop making fire risk theories when the theory has gaps.

According to the study "Conditions for the performance of low voltage electrical installations according to the new regulations, in buildings" by F. Łasak, plasterboard is considered non-flammable. The question is, what about filling such a wall, e.g. polystyrene - I would consider (but this is only my opinion) a combustible material.

kanzas741 wrote:

one more question, is it necessary to use conduits or is it possible to just put a bare wire in the wall and cover it with wool and cover the cardboard with plaster?

Would you like to pass bare YDY through the holes in the sheet metal elements of the structure?
And do not forget that the long-term load capacity of the cable in conditions of difficult cooling drops significantly.

retrofood
would you please develop your thought more?

Quote:

And do not forget that the long-term load capacity of the cable in conditions of difficult cooling drops significantly.

I would use plastic elbows where the cable passes through the structure.

kanzas741 wrote:

retrofood
would you please develop your thought more?

Quote:

And do not forget that the long-term load capacity of the cable in conditions of difficult cooling drops significantly.

Look at the tables for long-term load capacity of cables laid in various ways on different substrates. Observe how the maximum current values change. Now try to think under what cooling conditions your pipe will be surrounded by mineral wool. You admit that heat dissipation will be extremely difficult. So you have to analyze the purpose of individual wires, consider what will work in a given circuit and consider whether a given cross-section is sufficient for heavy operating conditions. You have to think here, I will not give you ready-made solutions, because I do not know the scheme and design of the installation. In any case, you have to take into account a greater margin of cross-section in relation to the planned load than in the case of cables, e.g. in plaster.

and the conduit in a conduit will have a greater load capacity and better heat dissipation?

kanzas741 wrote:

and the conduit in a conduit will have a greater load capacity and better heat dissipation?

Temporarily - yes. Long-term - no.

kanzas741 wrote:

and the conduit in a conduit will have a greater load capacity and better heat dissipation?

What do you think? And so the heat has to dissipate somewhere. In insulating materials such as wool, polystyrene, etc. it is extremely difficult.
So, placing the conduit in the conduit will facilitate or hinder the already difficult cooling of this conduit?

PS. In a well-designed installation, even under extreme loads (which should not be present), the cables are at ambient temperature.

Quote:

PS. In a well-designed installation, even under extreme loads (which should not be present), the cables are at ambient temperature.

what do you mean by that

kanzas741 wrote:

what do you mean by that

Well, there are installations not only arranged in very difficult conditions (worse than cotton wool and polystyrene), but also conducting currents of hundreds of amps.
Somehow, when you "feel" such a wire, it is not even warm.
Guess why.

first, it depends on the conductor cross-section. Then it depends on the distribution of the power consumed over several cables, I mean that, for example, 1 socket is powered by a 3 x 2.5 cable directly from the switching station. I know he writes a bit strange but that's because I just don't know how to speak professionally to something like that.

kanzas741 wrote:

first, it depends on the conductor cross-section. Then it depends on the distribution of the consumed power over several wires

You do well.

So if I distributed the power properly, could I use a 3 x 2.5 cable to power the socket circuits and a 3 x 1.5 cable for lighting, or would I also use 2.5 mm for lighting?



this is my switchboard


I will just add that this is not my switchboard and in mine there is a 1-phase power supply, but it is possible to convert it into 3-phase, because there is a 5-wire cable, so I mean how these "two" free phases and the 1 used extend and lead to the top

Another thing. I have a switching station on the ground floor, but I would also like to have a separate one on the first floor, is it possible with such a connection of the switching station on the ground floor? if so, how should I move the phase, neutral and PE conductors to the switching station on the first floor, extend it with a balance; p