# What is the use of a grounding stick

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## Main Question or Discussion Point

suppose there was no ground stick at power generating station .
then there would be no reason for a person to get an electric shock.
no need for ground wires.
only live and neutral wire for domestic supply.
why is the neutral wire connected to earth at generating station

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A.T.
suppose there was no ground stick at power generating station .
then there would be no reason for a person to get an electric shock.
If the person bridges the live wire and ground it will still get a shock.

If the person bridges the live wire and ground it will still get a shock.
but there would be no potential difference between live and earth if there is no ground stick at power generating station

A.T.
there would be no potential difference between live and earth
Then it wouldn't be live but earth.

Then it wouldn't be live but earth.
i meant to say where is return path of current

Drakkith
Staff Emeritus
I believe the grounding system is there to protect equipment and workers in the event of a fault and to prevent a floating ground situation, but this is just based on a few minutes of looking into this.

Bystander
Homework Helper
Gold Member
What is the capacitance of the planet? Of course you're going to get knocked on your butt.

In NZ the power stations generate 3-phase power and have a local neutral to earth connection but as the three phases are balanced there is no current flow to the earth. Only the three phases leave the station. After going through sub-stations the single phase domestic supply is unbalanced and has phase to neutral current flowing. It may be different where you live.

What is the capacitance of the planet? Of course you're going to get knocked on your butt.
700uF

700uF
why is the earth considered to be a const potential of 0 V
capacitance of earth must be gigantic to resist change in potential due to any charge gain or loss

jbriggs444