Equipotential bonding is achieved by conductively interconnected conductive points thus the electrical voltage between the points can no longer be measured.
The connection of a point on the electrical system to the ground is called earthing. This can fulfil certain tasks, such as:
Protection against the direct and indirect effect of an electric shock (personal protection).
Lightning protection
Ensuring electromagnetic compatibility
Protective or functional earthing of certain equipment, such as power inverters
Equipotential bonding and an earthing system complement each other to form an effective protection system.
Equipotential bonding must always be added to PV systems in accordance with the specific national standard. This applies to all conductive and exposed components.