Hello guys,

I work as a process engineer and my boss arranged a course for me to be certified to work with electricity. Now I do simple electrical work, but to make it official, I have to have a paper from it. (I don't have an electrical education, but a mechanical one)

The following question will be on the exam:
"
in the TN-C-S protection system, it is necessary to connect a single-phase socket and a three-phase 400 V socket before splitting, and after it is split, a single-phase socket and a class II consumer, a three-phase electric motor 3x400 V and a three-phase 400 V socket to it with a movable supply.
Ensure protection by automatic disconnection."

Is there anyone who can help me with this? how should I draw such a scheme on paper?

 

Technically this probably falls in to the Homework category policy for the site.?
There is a few issues here that have to be addressed, IMO, I would assume you need to show conductor ratings and also necessary protection for each section of the circuit.?
The ladder style of schematic or diagram would normally be used.

 

In a Tncs system, the Neutral and Earth are one conductor being brought into the building, so at the distribution board there is a copper link used to bring the Earth out to a separate terminal so you can use it to feed via the RCD to ensure of fault detection.

 

The following question will be on the exam:
"
in the TN-C-S protection system, it is necessary to connect a single-phase socket and a three-phase 400 V socket before splitting, and after it is split, a single-phase socket and a class II consumer, a three-phase electric motor 3x400 V and a three-phase 400 V socket to it with a movable supply.
Ensure protection by automatic disconnection."

Is there anyone who can help me with this? how should I draw such a scheme on paper?

Before WHAT is split?

I wouldn't like to be that Class II consumer that is about to be connected to the supply!