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Question about system power supply - 4P 32A socket, 5P 32A switchboard

DJOstry 8655 5
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  • #1 16568294
    DJOstry
    Level 25  
    Hi.
    I have a problem, there is strength at the city stadium and there is a 32A socket for 4 pins.
    My system (switchboard) has 5 pins.
    now the question. How to make an adapter? connect the PE and N wires in the 4-pin plug?

    pozdr.

    Question about system power supply - 4P 32A socket, 5P 32A switchboard
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  • #2 16568543
    mistake68
    Level 14  
    Hello !!
    You answered the question yourself. Connect PE and N in a 4-pin plug.
    Best regards !!
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  • #3 16569273
    teskot
    Level 37  
    If it is a socket as in the picture shown then YOU MUST NOT DO THIS! . You cannot use the PE (protective) conductor as PEN (i.e. operational-protective or N (operational). If this is a fairly new facility or a recently modernized network then you will definitely find a 3P + N + PE socket somewhere. Unless the socket on the object is old type (in an aluminum casing) it may contain a PEN cable - depends on the type of mains. Consult the facility manager for information.
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  • #4 16569619
    DJOstry
    Level 25  
    Sockets on the object:
    Question about system power supply - 4P 32A socket, 5P 32A switchboard


    and I have 5 pins in my switchboard.

    I see that in the 4P system zero is missing, it is only protective.
    And protective is grounding.
    so I will not be able to draw energy from individual phases, because there is no zero conductor, only 3 phases and grounding. And the energies in this case are drawn from Neutral and phase.
    Good cumin?
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  • #5 16569651
    kortyleski
    Level 43  
    Theoretically, there should be three phases and so-called zero in this socket. Theoretically, it is possible to zero and thus gain protection. However, we do not know the structure and condition of the installation, so such a connection can be extremely dangerous until a dangerous voltage occurs on metal parts of the devices. Here, a switchgear with a built-in RCD and even a quickly earthed earth would help.

    Added after 1 [minutes]:

    Of course, an earth electrode with such resistance would be able to force a differential current.
  • #6 16570475
    teskot
    Level 37  
    The socket on the right correctly connected does not have an N terminal, only a PE terminal and is used to connect receivers using only inter-phase power supply, i.e. electric motors, welding machines, etc. "zero" or neutral-protective. I do not speak any more because I do not know what, who and how connected to these sockets. In any case, until you learn this, you must not "blind" do the adapters mentioned above.
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