There are some issues with the IEC 60364 defined TN-C-S earthing system in my region:
http://en.wikipedia.org/wiki/Earthing_system1) High-impedance ground faults pass thru fuses, so plumbing networks --and bonded Earthing system-- across several buildings, are sometimes hazardously energized.
2) In addition to plumbing bonds, my region requires any coax-cable TV to bond at consumer D-Mark. So the coax cable ground sheath provides another high-impedance fault path for energized injury between buildings.
3) Remote harmonic distortions menacing other customers has also been reported to propagate some distance along this earthing network.
