An efficient earth-termination system is vital to disperse lightning currents and prevent the wind turbine from being destroyed. From a lightning protection point of view, it is advisable to implement a single, common earth-termination system for all purposes.
To this end, foundations made of reinforced concrete should be preferably used as earth electrode because they have a low earth resistance and provide an excellent basis for equipotential bonding. Foundation earth electrodes make both technical and economical sense and must be designed and installed as per DIN 18014.
|Earthing, equipotential bonding|
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