Voltage Issue on Socket Pin: Legrand 40A 30mA Differential, 3-Wire x2.5 Cables, 3x1.5 Switches

ferguson6600 wrote:

Thanks for the info, but I don't have 2 left hands to fix. But it's overwhelmed me and I don't know what's up.

And this is the summative action of the layman for whom the only criterion is a statement A Pole can do it without knowledge and it is important that it shines
Posts by electricians on this topic, showing errors and dangers, should be a warning for many laymen who believe that there is nothing easier than making an electrical installation and everyone can do it.

Topolski Mirosław wrote:

ferguson6600 wrote:

Thanks for the info, but I don't have 2 left hands to repair. But it's overwhelmed me and I don't know what's up.

And this is the summative action of the layman for whom the only criterion is a statement a Pole can do it without knowledge and it is important that it shines
Posts of electricians on this topic showing errors and dangers should be a warning for many laymen who think that there is nothing easier than making an electrical installation and everyone can do it.

In addition to the "novice electrician" section, I propose to create a "suicide electrician" section

Gentlemen, this photo does not reflect the actual state. A 5x4mm cable enters the board from the main box. The grounding goes directly to the PE strip, and the remaining 4, including the N wire, go to the differential (it is not very visible in the photo), the 4x4mm differential also comes out of the differential. The N wire goes to the N strip, and the remaining L go to the fuses from the power socket, and to the fuses for individual circuits in the house. Next, 3 circuits with 3x2.5mm wires go to the house from the fuses. The one that is good here, in addition, the electrician installed the fuse box in the old place where the meter used to be. This will also be redone when I am renovating the vestibule, and the socket and the power switch will be mounted outside in a separate box, and the rest will be properly mounted in the vestibule. But thanks for pointing me out where the error is in the installation, and all suggestions will be corrected.
A colleague will write to me what exactly are the bushings, the connecting rods or the main ones, because there are 2 types on the shaft, how can I describe what they are for and the stop rings.

Added after 5 [hours] 49 [minutes]:

The installation was fixed, the problem was with the installation in the woodshed. The cables were changed to 3x2.5mm and correctly connected to the sockets, and the lamps were changed to 3x1.5mm. I connected the ground on the 3rd circuit and the installation does not turn off the differential. Thank you all for the hints.

Come back then, buddy ferguson6600 to post # 25

Well, my colleague gave directions as to the condition of the installation, so I changed the whole thing right away. Anyway, I always give 3x2.5mm for sockets and 3x1.5mm for lamps. I do not know why I was so stupid and gave this line for these halogen lights, I thought that the low power consumption would be enough for the 2x1mm. I checked on 3 room lamps if I connected the ground to them because when I looked into the cans, I noticed that I had the ground connected, and as it turned out, during the first installation I gave 4x1.5 mm for the lamps and immediately connected the ground. The only crap is these unfortunate halogens. And as for the board with sloppy etc. The box was not mounted directly to the wall, but screwed to the OSB board which was already there, on which the counter was attached. She will also go to the wall in the spring and the power socket and the switch outside.

Friend author. Do you realize that you are protecting 1.5 mm wires with the B20 switch? and 2.5 mm ?? Can you imagine what will happen to the insulation of this wire in the event of an overload?

ferguson6600 wrote:

A 5x4mm cable enters the board from the main box.

And where does this fifth wire come from? PEN distribution in the FPC is it not connected anywhere and you have PE by definition?

If an electrician made a complete set of measurements, including the IPZ, you would know that the installation is ready for immediate disconnection. Because, unfortunately, there is nothing to improve, and the whole thing can only be replaced. And my advice is, get an electrician before you kill someone.

There are five wires because 3 wires are L, one is N, and the fifth is PE. The L conductors go to the differential, the N conductor goes to the N strip through the differential, and the PE conductor goes to the PE strip. A colleague wants to tell me that B20 fuses are too big for such an installation and you need to use B16? An authorized electrician put it on for me, since he did, I thought he knew what he was doing.

It means that it was not an electrician, but Mr. Henio for everything. Anyway, do what you want. Your life, your case, and your attorney or gravedigger.

A man who works every day in a power plant, I think he knows what he is doing since he has SEP qualifications, how many I do not know, but I will report it to him to verify these fuses.

ferguson6600 wrote:

I think he knows what he is doing since he has SEP qualifications,

And I don't think he knows. As for me, he may even be an astronaut, anyway, he is definitely not an electrician, and if he is, he has no idea what his profession is.

ferguson6600 wrote:

but I will report it to him to verify these fuses.

Perhaps it would be necessary to verify the qualifications of this professional? Or ask a real electrician for help.

ferguson6600 wrote:

An authorized electrician put it on for me, since he did, I thought he knew what he was doing.

The certificate of qualification (which you call "SEP entitlement") is not an AUTHORIZATION to perform independent technical functions in construction.
So this gentleman should not choose the security measures for the installation, because he did it WRONG first. Bad because there are not enough circuits (required by law), and bad because such high security is not chosen for "everything".
You can see that he put what he had at hand and that's it.

ferguson6600 wrote:

I think he knows what he is doing since he has SEP qualifications,

Second, the man doesn't know what he's doing. Professional power engineering differs significantly from the electrical INSTALLATION. I am sure that this man is not familiar with the requirements of several standards in the scope of 60364. In particular those: 60364-4-41, 60364-5-52, 60364-5-523 and 60364-5-54.
Subject to read: https://www.elektroda.pl/rtvforum/topic3263074.html (especially post # 5).

Ok sure thing, in your opinion 16A is enough?

ferguson6600 wrote:

Ok sure thing, in your opinion 16A is enough?

What did you not understand from the thread I asked you to read?
I will quote you the most important passage:

Quote:

each installation (each! and there are no exceptions) has its own individual parameters and need to be calculated .

ferguson6600 wrote:

Ok sure thing, in your opinion 16A is enough?

Man, wake up at last. Circuits made with a wire with a cross-section of 1.5 mm? They can be protected with an overcurrent circuit breaker higher than 10 A. And it is only on condition that the IPZ allows it. You stuffed everything into one sack. You didn't do anything according to any standard! Once again, I will say: the entire installation is only suitable for a major overhaul!

ferguson6600 wrote:

Ok sure thing, in your opinion 16A is enough?

Security features are not selected just like that without knowing all the data. The cable cross-section is not everything.
Colleagues advise you well - change the "electrician". And let him take care of the selection of security features after examining and analyzing the installation.

As for the power plant specialist - I used to work with an electrician with 40 years of experience at the plant in Nowa Huta. And he had problems with connecting the staircase switches, not to mention a simple diagnosis of triggering the "differential" ...

I called an electrician to improve the installation.