Thread: Power surges
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w_tom
 
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Default Power surges

In order for electricity to pass through you, first, there
must be an incoming and outgoing path where a voltage
difference exists between those incoming and outgoing paths.
Watch a bird sit on a high voltage wire. He has an incoming
path - his feet. Where is the outgoing path? No outgoing
path is why the bird is not electrocuted. Same applies to you
touching a ground wire. As long as that energized ground wire
and earth ground beneath your feet are same voltage, then
there is no outgoing electrical path.

Fundamental to electricity. First electricity must flow
through everything in the complete circuit. Only after that
complete circuit exists - electricity flowing through
everything in that circuit - do we then have damage. No
outgoing path means no complete circuit - no damage and no
danger.

Valid User wrote:
If the ground wire can be energized, then why it is bare? Will it
generate a current through you if you touch it?

Sorry for the novice question. But how the electricity know it will
go through the netral first, and use the ground only when the netral
is bad? Why not use ground first?