Lightning protection guide by OBO

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Last revision 2020

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

Strana 71 z 288

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What the separation distance? If there adequate distance between the conduct- or passing from the lightning current and the metallic building parts, the risk sparking practically non- existent.5 Separation distance (s) All metallic parts building and electrically powered equipment and their supply cables must be integrated into the lightning protection system. These include, although are not limited to, metallic railings, doors, pipes (with non-flammable and/or explosive content), facade elements, etc. This measure required avoid dangerous sparking between both air-termination system and down-con- ductor and also the metallic building parts and elec- trical equipment. The separation distance (s) does not prevent induct- ively coupled surge voltages! Components with direct connection lightning pro- tection system A separation distance does not have observed in buildings with cross-connected, reinforced walls and roofs with cross-connected metal facades and metal roofs.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 Correctly maintained separation distance (s) between down-conductor systems and roof structures 2. 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 71 Chapter The external lightning protection system . Metallic components with conductive lead into the building protected, and whose dis- tance the conductor the external lightning protec- tion system less than one metre, must connec- ted directly the lightning protection system.1. This distance described the separation distance (s)