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.
