So what would the fix be? Attach the grounds to the neutral only in the meter socket?
Require the conduit connecting meter socket to the service panel be PVC? Some type of bond is still required between the socket and the panel, so there is sort of a catch 22. Which is the worse of the two evils?
If the metersocket is outside and the service panel inside, it would be impossible to be in contact with both so any potential between them would not be hazardous. But if they are located next to one another then a potential difference could be hazardous and neutral current across the conduit may be the lesser evil.
I argue with contractors about this all the time but have no data showing any posssible hazards or that current will travel across the conduit at all because of the path of least resistance arguement. Any data as to how much current, if any, will travel across a conduit in parallel with a neutral conductor with 2 phase conductors 180 degrees out of phase in the conduit as well, would be appreciated. And if there will be current, what are the harzards? Is there a possiblity of potential besides to the phase conductors?
