"J. C. Mc Laughlin" napisal w wiadomosci
.. .

An earthed wire is run above the HV 3-phase and does a good job of
providing a low impedance path for lighting. One side of the HV to LV
transformer is earthed as well as the center tap of the secondary
(Neutral). The neutral is again earthed at the service entrance as is one
end of the green wire running unimpeded to every human touchable
conductor.

Is something flowing in the all earth wires?
S*