Best Practices for Connecting Multiple Wires to a Single Fuse in Switchboards

In the switchboard, when we connect the fuses (creating a rail), we connect two wires to one "S".
How is it when leaving? - is good practice saying that one "S" for one wire (which here is the same as the circuit), can you connect two or even three wires to one "S" (which also form one circuit)?

You have no idea about electrical installations, call an electrician with current qualifications and ask for the assembly of the switchgear.
One circuit breaker and one outgoing wire.
Partacz can install up to 6 2.5mm2 cores for an overcurrent circuit breaker.

kosmos99 wrote:

It makes no sense to make two circuits and then connect them to one protection, the more so as the price of the protection is often lower than the wire used.

But many professionals do just that, everyone has a different school.

Added after 1 [minutes]:

elpapiotr wrote:

But they can.
And you wouldn't be able!

For a colleague, I can grab even 15 wires of 2.5mm2 in the clamp

Mr. Bodzio_elektryk - I have qualifications, maybe it does not matter, but I am also a member of SEP and I could continue to mention - because it is - but I deal with a completely different plot - and asks someone who deals with LV electrical installations on an ongoing basis.

The popular post on this forum "call an electrician" is very out of place - the more that I asked the question on the forum for beginners.

But thank you for the specific answer - but let me ask another question - why is that? I am ignoring the extremes of 6 2.5mm2 wires - where the wires may "pop out" over time.

The necessity to make two circuits resulted from the fact that during the expansion they meet from two added parts of the house - and the common point is the place at the switchboard - making an additional box here just to connect these circuits is rather pointless.

kosmos99 wrote:

It is best to add a separate security
Are the cables of the same cross-sections?

There is a limited space in the switchgear - so I would not even think about it. Wires with the same cross-sections.

madz123 wrote:

The popular post on this forum "call an electrician" is very out of place - the more that I asked the question on the forum for beginners.

And I think it is very appropriate, because to explain to a layman who knows something, how to commission a baker to make an electrical installation, and he will tell you, I know something.
Either you are an electrician and you know what you are doing, or you are not and you call a qualified specialist to make the switchgear, or you do not figure it out whether it will work or not.

fighter wrote:

I am curious how will you give a few of the same wires with a similar cross-section, what protection will you choose for this buddy madz123 ???

Colleagues, let's not exaggerate - there are currently 3 sockets on one of the circuits, and 2 on the other. There will be a total of 5. 3x2.5mm2. Protection 16A.
For lighting - 2 lamps + 2 lamps + 1 lamp. 3x1.5mm2. Protection 10A.

kkas12 wrote:

What does it mean that there is a limited space in the switchgear?
What about the thirty percent free space rule?

Look closely at the terminal of the miniature circuit breaker and you will see that the combination of what "blessings" you demand to see can have a very pitiful end.

the terminal of the overcurrent switch looks like that if the wires have the same cross-section, several of them can be caught horizontally (2-3).

The limited space in the switchgear means that nowadays there is an extension of the building and the change of the switchgear to a larger one just to leave 30% of the supply again rather misses the point - and if so - why then do we leave the 30% of the supply?

madz123 wrote:

In the switchboard, when we connect the fuses (creating a rail), we connect two wires to one "S".
How is it when leaving? - is good practice saying that one "S" for one wire (which here is the same as the circuit), can you connect two or even three wires to one "S" (which also form one circuit)?

For the first time in my life I learned from a SEP member that two wires form a bus. [/ Quote]

The current rails by some electricians in the switchboards that I have seen were / are made of wires, and without the use of the so-called "single / 3-track busbars). In particular, the parallel connection of two circuits can already form a bus. I described the case of creating a bus using wires (from" S "to" S "). Please give me a substantive justification where I made a mistake.

kkas12 wrote:

Quote:

... if the conductors have the same cross-section, several of them may be caught horizontally (2-3).

May you not have to verify your conviction.
But if you are sure why do you ask?

What's the point of dividing one circuit into several?
What is the obstacle to connect these several "circuits" in the switchgear with a terminal, e.g. WAGO and one wire to the overload switch?

No problem. The second specific answer. So - if we have no output - it is better to connect WAGO in the switchgear, or just two wires to the switch?

You have a splint and a professional one.
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And you even have two 2.5mm2 wires for one es B16

kkas12 wrote:

What to justify you?
Don't you understand that skipping professional solutions for a manufacture is a full-blown mess?
The bigger the mess because you used a wire instead of a rope.

And if you quote something, do it correctly.

I have not used anything yet - so far I have seen how I have the switchgear made twenty years ago - and it was made by a qualified electrician.

Separate fuses are a professional solution. If we do not have the possibility, it is better WAGO? It seems less elegant to me, but since you think that this is a better solution, I accept it and thank you for your advice.

madz123 wrote:

I have not used anything yet - so far I have seen how I have the switchgear made twenty years ago - and it was made by a qualified electrician.

Separate fuses are a professional solution. If we do not have the possibility, it is better WAGO?

These are not fuses, but probably circuit breakers (circuit breakers)
Every electrical installation made 20 years ago or yesterday is made by a professional, and why? because it works and it does not matter if you put 5 wires with a diameter of 2.5mm2 or three wires 4mm2 under one ESA, does it work? it works but nobody knows how long.
Clean dirty mess.

Buddy pol102, I wrote that how they work it is ok, but it was about the work done by the bunglers. How would he not do it, it will work anyway.
And please do not accuse me of something I did not do and which I have corrected.
Coming back to security, it is the most important thing.
Post corrected above.

madz123 wrote:

Electrical engineering, power engineering are difficult industries - but only because of people - because there are a lot of people here who think that they have eaten all their minds by graduating from school / studies / gaining qualifications / SEP / construction, etc. - and we are talking about ordinary wires and a few patterns.

And you are such a person, you write about permissions (there is no such thing), you have the sep qualification, and you ask the question whether two wires can be connected to ESA. Please, this is embarrassing.