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SELV vs PELV: Best Use Cases, Safety Measures & Recommended Reading Materials

K0ras 6138 1
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16564075
    K0ras
    Level 10  
    Hi,

    I am aware of the differences between the two systems. However, I wonder when it is best to use SELV and when PELV.

    I assume that it is about limiting potential jumps to the ground in the case of SELV, only when this solution should be used best?

    It's best to ask for some material to read so that I can draw my own conclusions and possibly consult them here.
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  • #2 16564911
    Sławek 61
    Level 19  
    The PELV circuit differs from the SELV circuit in that it has an earthed active part and / or conductive parts available. The recommended solution is a SELV circuit. The PELV circuit should only be used if an operational ground is necessary, e.g. for interference protection purposes, or if the circuit contains a grounded sensor. I presented a quote from the book of Władysław Orlik.
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