making zero between null and earth

[aliorooji]

hi.
who knows that how I can make zero voltage between null and earth?
is using an isolation and earth system a good idea?and how?
thanks a lot.

 

[VEBill]

...how I can make zero voltage between null and earth?[/quite]

You join 'null' and 'earth' together with a short and heavy-gauge wire.

There are other approaches, but this is the most direct.

 

[VEBill]

Autocorrect is 'quote' annoying...

 

[OperaHouse]

Sometimes you can't. I worked on a jet engine test stand aith a massive concrete and rebar foundation. It was the best ground on the base. Everywhere else just flowed current to it.