1 “earthing” for bonding of equipment and circuits to common plant e

1 “earthing” for bonding of equipment and circuits to common plant earth electrode potential,

2 “protective earthing (PE)” when this bonding is required for personal safety provisions

3 “grounding” for interference suppressing bonding of screens, sys-tems with ground level

4. low-impedance earthing ?

5.primary earthing system and secondary earthing system what is that?

6.earthing electrode or mesh net earthing electrode ?

very confusing , simple but very informative help required ?

i will be very very thankful to you guys.

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