Lightning protection guide by OBO

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Last revision 2020

Vydal: OBO BETTERMANN s. r. o. Autor: OBO BETTERMANN

Strana 54 z 288

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The lightning cur- rent needs safely routed into the earthing sys- tem without any sparking arcing into other metallic structures. Alongside the air-termination system and the conduct- ors, the earthing system another integral part the external lightning protection system. The air-termination systems form protective spaces, the necessary size which can determ- ined using, for example, the “rolling sphere method”. case direct strike, the lightning protection system protects the building against fire. For lightning currents, this creates conductive path into the ground. The air-termination systems provide optimal impact point and are connected to the earthing system via the conductors. IEC/EN 62305 + State and model build- ing regulations require lightning protection IEC/EN 62305 + DIN 18014 require foundation earth elec- trodes IEC/EN 60364-1 requires protection against electric shocks TBS Blitzschutz-Leitfaden 2018 / en / 2020/01/10 14:42:40 14:42:40 (LLExport_02613) / 2020/01/10 14:42:54 14:42:54 54 . The equipotential bonding system creates the connection into the building.The lightning current must intercepted and arrested by the lightning protection system