Distributor's Box Wiring: Bridging PE with N or Creating Additional Grounding?

Question

Hello

I have a layout according to the drawn diagram. The distributor gives 3 phase and neutral. No ground line. Please let me know if I should bridge PE with N in the distributor's box, or maybe in the construction one. Should I make additional grounding in the ground, or maybe a differential will suffice.

Please give me specifics.

kkas12 · Answer

The distributor is rather fuel gives.

Łukasz-O · Answer

Details are in the Terms of Connection. It shows how the network works. RCD is missing in the picture. Where to get PE? Are you asking as an investor or contractor?

zbich70 · Answer

What is in connection conditions - network system? (Luke warned)

zubel · Answer

You have everything written in the power conditions. If an earth ground is required it will probably be 10 ohms and you will need to make it yourself.

Łukasz-O · Answer

And where does this magical value come from? Can my friend clear this up?

retrofood · Answer

Who is he giving it to and why would he do it?

Piotrekh75 · Answer

I would like everyone to understand me well. The description of the box in the house is how to perform grounding. The box I am asking about is a construction box standing in the middle of nowhere. So I will not connect the grounding since there is no foundation and reinforcement yet. I am asking as an investor, I am building an economic system.

jdubowski · Answer

That's right - everyone has already asked for a description of the network layout of the connection conditions N times. Then everyone will understand you. In addition to the foundation earth electrode, science and practice know several other types of earth electrode. This grounding can be treated as temporary.

elpapiotr · Answer

Author, when you answer questions previously asked by colleagues, you will receive specific answers. Otherwise none of it.

mawerix123 · Answer

Maybe this will shed some light on the situation -->

zbich70 · Answer

There is no concept of economic system in the electrical industry. Electrical installations may only be carried out by suitably qualified persons. Dot. In the case of construction switchboards, even more so. But if you must play Zosia-Samosia (meaning economic system), then be kind enough to answer posts #3 and #4. The keyword is network system, TN or TT? It is very important for an electrician, but these letters probably don't mean anything to a colleague ...

CYRUS2 · Answer

It's you you don't get anything Colleagues on the forum understood everything well. Terms of connection - it's all written there. You are not for connecting - especially the switchgear. Hire an electrician. If it is as you write, the earth electrode will not provide you with electric shock protection. Even if it's 10 ohms. You need to hire an electrician to make a suitable switchgear. And to measure the effectiveness of protection.

anarkh · Answer

In addition, the earthings present in cable connectors are working earthings, not protective earthings. Most LV distribution networks operate in the TN-C system, so it is important that the investor performs protective earthing on his own.

Piotrekh75 · Answer

I have the installation in the building TN-S, I do not have a project for the construction box.

elvis13 · Answer

What do we care about this building? You write that... You have a building connection to a plot with nothing on it. There you have those construction switchboards. In order for you to connect, you had to apply for Connection Conditions. You must have had an answer to that request. This is the document we're talking about. Find it and read it. Look for information about the network layout. TT or TN. It's best to post a scan. Here you have an example WP Information for this particular document is on page 3. You cannot be considered to have protection against electric shock until confirmed by measurements. It will be more economical to hire an electrician with measuring equipment than to buy a meter yourself that you need to be able to handle and understand the results.

Piotrekh75 · Answer

Maybe the photo I took will help. If I understood correctly, the terminal on my box is PEN, so that would solve the problem?

elvis13 · Answer

Whether it is a PEN or N connector will be written in the Connection Conditions. The photos of this box do not show what Tauron has between the transformer and this box!

The diagram in the box may be wrong! The manufacturer of the boxes does not know what the network layout is. This is known by the distribution network operator.

Boy, have mercy and find this document! Don't go without it!

By the way, someone could reprimand the producers because they actually give PEN everywhere...

mawerix123 · Answer

In response to a sentence in red print. You can't connect two N and PE wires to this zug, it's not even about the PEN chapter, but about the connection itself. And Electrician!

Piotrekh75 · Answer

Ok, I know what it is, I'm sending the data

Karamba2014 · Answer

1- whether this (construction) box will stand in one place throughout the construction 2-in the box there should be a 3-phase differential

elvis13 · Answer

Fixed. You have a TN-C network layout.

You have a PEN, which is a wire with two functions:
1. PE protective conductor functions
2.Neutral wire functions
as long as he is min. 10mm2 for Cu, 16mm2 for Al.

What are you going to do next?

CYRUS2 · Answer

Where did you learn - from your grandfather with knowledge at the level of Comrade Gomułka? By the way, you don't know what you're talking about. PEN is not a gadget bought in a supermarket.

Piotrekh75 · Answer

I have Erbetka L232, I intend to connect it by plugging it into the N + PE meter box under one terminal. The box will stay in one place, there is no differential in the erbetka, but I can buy it.

Karamba2014 · Answer

You can connect the meter box to the erbetka with one PEN cable and in the erbetka break into separate N and PE

kkas12 · Answer

You can, but this PEN should have the right cross-section. 10mm2 for Cu or 16mm2 for Al.
And you're not doing any favors with the RCD. You need to mount it.
PE grounding is also recommended, unless your box will be standing next to the connection and measurement post.

Karamba2014 · Answer

You can always stick pins into the ground and if the measurements are good, ground it from it

kkas12 · Answer

When will they be good and when will they be bad?

Karamba2014 · Answer

Below 30 ohms

kkas12 · Answer

Where did your friend read that?

Distributor's Box Wiring: Bridging PE with N or Creating Additional Grounding?

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