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Supplementary bonding conductor in a medical location

Julien Leblanc
Hello,


After reading from many sources about the medical locations' supplementary equipotential bonding, everything is mixed in my head...


Suppose we have a current using device inside a group 1 medical location (TN-S supplied).

Then the protective conductor of that device must be connected to the EBB installed in this location by means of a supplementary equipotential bonding conductor.

Could someone clarify this:  that bonding conductor, should it comply with art. 544.2.1 or with art. 544.2.2 from BS7671, that is, the EBB should be considered an extraneous-conductive-part or an exposed-conductive-part ?


Thank you.
Parents
  • 0
    Then the conductor which connects the protective conductor of the circuit with the EBB should be considered an extension of the CPC and be sized as a CPC?

    Please detail a little.
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  • 0
    Then the conductor which connects the protective conductor of the circuit with the EBB should be considered an extension of the CPC and be sized as a CPC?

    Please detail a little.
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