Extending & Connecting 2x1 Wire-Strand Cables in 20-Year-Old Building with Polystyrene Facade

Hello.
In a 20-year-old building, I have cables (2x1 wire wires) for lighting at balconies. It has to stay that way because, unfortunately, there is no option to bring out new cables with a larger cross-section.
1) How can I extend the cables over the balconies because so far there is bare brick, but I will be making the facade of the building, so there will be polystyrene going and some of the cables taken out may be too short.
2) Can I connect wire with wire to wire with wire? (in one place I have it done and I don't know if it can stay that way)
3) Is it possible to connect a wire 2x1 wire to a wire 2x1.5 wire?
Please help..

piczowąs wrote:

In a 20-year-old building, I have cables (wires 2x1 wire)

Well that's a big shit, buddy.
The requirement for a separate (or third) protective conductor is older than that of the building.

Sorry to the mistake of a 30-year-old home. I guess there were no such requirements then, if there is such an installation?
There are 4 places where these 2x1 cables come out and as much as in two places they will someday be used 3x1.5 because there is such a possibility (the floor is not finished), in the other two places there is no option to put such cables out .. unless you demolish a piece walls and plastering on the entire ground floor, which of course is already finished and decorated a long time ago
So wherever I can use 3x1.5 cables, I promise I will
I would like to get an answer to the questions I asked.
Thank you in advance

piczowąs wrote:

Sorry to the mistake of a 30-year-old home.

The cottage quickly aged a decade.
Normal...
Do you have any paper from the last 5-year review?

He aged so quickly because I checked the date when the house was built especially on this occasion, and I did not build it, but I moved here two years ago and at this point I cannot afford to redo the entire existing electrical system to meet today's requirements. So for now, where something can be improved, it is and will be improved, and where it cannot be improved, it will be improved during a general renovation in a few years. And then everything will be good and the reviews will also be ...
Meanwhile, I would just like to get answers to the questions I asked.

piczowąs wrote:

1) How can I extend the cables over the balconies because so far there is bare brick, but I will be making the facade of the building, so there will be polystyrene going and some of the cables taken out may be too short.
2) Can I connect a wire with a wire to a wire with a wire? (in one place I have it done and I don't know if it can stay that way)
3) Is it possible to connect a wire 2x1 wire to a wire 2x1.5 wire?
Please help..

You can connect.
You need a press, sleeves and a suitable heat shrink kit.
Take the size larger for the sleeve cable.
Only the lines do not "slim down" by cutting wires.

Oh, since there are two strands, it would be necessary to check whether the other strand is suitable for protection at all - whether it is zero or undersized PEN at all.
Also check the IPZ and the SWZ condition.

Thank you very much for having finally partially answered my question
I am asking only that, without knowing specific facts, not to speculate about this or that, let's talk in such a way that I would receive a specific answer to a specific question without being wrapped in additional conspiracy theories Only after I get answers to my questions, we can argue and why is it, why is it and what is not, and what is examined and what is not, and what is paper for and what is not, and why I should I'm asking questions since I'm not a qualified electrician .. Don't worry, everything will be done in due time Rome was not built in a day.
I just want to get advice from a qualified electrician, e.g. from the elektroda.pl forum, for example, in order to find out about other solutions, maybe better, maybe worse than those I planned to do.

Back to the topic..
Okay, so I already know that I can connect the wire to the line.
And it is connected in such a way that a special connection sleeve with a heat-shrinkable sheath is clamped on the wire and on the cable, and additionally, a heat-shrinkable tube with glue is welded on the cable.

But in the end, I do not know if it is possible to connect a new cable (wire) 3x1.5 to the old (wire) 2x1, i.e. can a new cable with a larger cross-section be connected to the existing one with a smaller cross-section ??? In other words, I want to pull the 3x1.5 cable from the balcony (3rd wire for the future, i.e. 2x1.5 used so far) and connect it to the inside with the 2x1 cable.
If it can be good, if not necessarily why?


An electrician will check this installation, but only after I extend the cables.

piczowąs wrote:

An electrician will check this installation, but only after I extend the cables.

So ask him right now what's the problem?

And again the same ... I see that it's hard to find out about anything here. Apparently I found someone who does not want to give an answer but to upset the man who asked 3 simple questions in the "electrics for everyone" section and not in the electricians section. Ok, thank you and best regards.

piczowąs wrote:

And it is connected in such a way that a special connection sleeve with a heat-shrinkable sheath is clamped on the wire and on the cable, and additionally, a heat-shrinkable tube with glue is welded on the cable.

Not necessarily - it is more practical than this
https://www.ceneo.pl/41470918

piczowąs wrote:

And again the same ... I see that it's hard to find out about anything here.

And what do you want to know after the introductory statement:

Quote:

It has to stay that way because, unfortunately, there are no options

So don't try to get a normal electrician to accept the trash.

piczowąs wrote:

In a 20-year-old building, I have cables (2x1 wire wires) for lighting at balconies. It has to stay that way because, unfortunately, there is no option to bring out new cables with a larger cross-section.

You do "shit" at your own risk.

piczowąs wrote:

1) How can I extend the cables over the balconies because so far there is bare brick, but I will be making the facade of the building, so there will be polystyrene going and some of the cables taken out may be too short.
2) Can I connect a wire with a wire to a wire with a wire? (in one place I have it done and I don't know if it can stay that way)

Here the answers fell.

piczowąs wrote:

3) Is it possible to connect a wire 2x1 wire to a wire 2x1.5 wire?

What in principle? Not.

Ok thank you for all the answers.

Cables with the same cross-section can be successfully combined with each other, regardless of whether it is a string or a wire. The link should then be twisted before being pressed in the sleeve. Generally, these short sleeves with a heat-shrinkable insulation shell will not work. I have used such couplings, and unfortunately they do not have high mechanical strength. Longer copper couplings are available for sale. Wires are inserted inside it, ie until the other side, and tightened. Some still solder the wires inside with tin - not to be confused with low-temperature alloys. The connection is heat-shrinkable and ready. This combination guarantees moss strength - electr.