Sony " VA" "IO"
Best is to start with basics. A surge (ie lightning) seeks earth ground. A best connection from cloud to earth was a wooden church steeple. But wood is not a superior conductor. A surge current (ie 20,000 amps) creates a high voltage in wood. 20,000 amps times a high voltage is high energy. Church steeple damaged.
Franklin connected the surge to earth. A best connection was a lightning rod and wire to earth ground. A surge current creates a near zero voltage on that connection. 20,000 amps times a near zero voltage is near zero energy. No damage.
Lightning (or 440 volts) far down the street seeks earth ground. A best connection to earth is via your appliances. Appliances are not a good conductor. So a surge current may create a high voltage in that appliance. Current times a high voltage is high energy. Appliance damaged.
Connect each incoming wire to single point earth ground. A best connection is an earth ground located where all wires enter the building. Any utility wire connected directly to this ground has best protection; near zero voltage created. Other utility wires that cannot connect directly must make this same connection via a 'whole house' protector. That surge current times near zero voltage (due to a short connection to earth) means near zero energy inside the building. No appliance damage.
Essential is how any incoming utility wire connects to earth. Best is a hardwired connection (ie cable). Other incoming wires (AC electric, telephone) must make the same connection via a protector. All incoming wires must connect as short as possible to the same (single point) earth ground.
A utility demonstrates examples of single point ground (preferred and right) and an example of defective earthing (wrong):
Tech Tip 08 -Duke Energy
If the surge current (ie 440 volt fault) is earthed BEFORE entering the building, then it does not hunt for earth destructively via the motherboard. Or dishwasher, RCDs, clocks, TV, or voltage stabilizer. Described is how to avert that one anomaly. A current that hunts for earth ground destructively via appliances. Also described is how to avert another anomaly. A current that hunts for earth ground destructively via the building. Both anomalies are averted by the quality of and shortest distance to earth.
okay for a appliance there is a phase(live,hot) and a neutral, and a ground (the big pin in a 3 pin plug)
so the big pin in a 3 pin plug goes to the soil woth copper plate and coal/something to prevent electric shock
now i should dug deep and put another copper plate and do all those stuff and where should i connect that wire to? the phase? (sry the above thing is very difficult to undestand)
if i connect it to phase wont i get a huge current bill as all the power gets drained to the earth itself?