Electrical....?

The equipment grounding conductor never should have current flowing through it unless there is a short to ground, like if a hot wire in a machine contacts the outer metal casing. Then current will flow just long enough to trip the breaker to shut off the circuit.

The exception to this would be a small trickle current flowing all the time when a light dimmer or other fancy device is wired in place of a light switch.  This is not a desired thing, but many switch boxes don't have a neutral wire in them so the ground wire is inevitably used as a neutral. I believe the NEC now requires a neutral wire to be present in every electrical box.

a 'short' should immediately blow the circuit breaker ..............

to start, "short but a ground connected to a device" is meaningless. A short to ground, do you mean?

"something wrong with right path" is also meaningless.

and the rest is also meaningless also. try again, in good English.