Page 13 - dehn-surge-protection-PV
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Air-termination system, down conductors, earth-
           termination system

           Air-termination systems protect the panel and operation
           building in case of direct lightning strikes. The metallic sup-
           porting frames on which the module systems are installed
           can be used to mechanically fix the air-termination rods.
           The earth-termination system is intermeshed with mesh
           sizes from 20 m x 20 m to 40 m x 40 m. All supporting
           frames must be connected to the earth-termination system.
           Pile-driven and screw-in foundations ensure connection to
           the soil. DEHN offers different types of round conductors
           and strips for connecting the earth-termination system to
           the PV supporting frames.

           The rolling sphere method must be used to determine the
           quantity and height of the air-terminations. To this end, at
           least class of LPS III is required.












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