Lightning protection guide by OBO

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Last revision 2020

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

Strana 247 z 288

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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 The insulated structure means that partial lightning current able flow through the antenna cable The precondition that the separation distance (s) is maintained. case direct strike the insulated air-termination system, partial lightning currents can occur the cable due the in- crease potential earth and presence different earthing systems. The power and data cables must integ- rated into the lightning protection equipotential bond- ing the entry the building. Careful use should therefore be made lightning arrestors this area. order to avoid arcing from the shield the cable onto the sig- nal line, the lightning arrestor equalises the potentials of the shield and the signal line. Busbar Coaxial surge protective devices (variable) Shielded building Transmitter/receiver Connection lug Foundation earther Antenna Energy cable Data cable Coaxial cable Air-termination system with separation distance (s) Insulated lightning protection antenna system and various earthing systems TBS Blitzschutz-Leitfaden 2018 / en / 2020/01/10 14:42:40 14:42:40 (LLExport_02613) / 2020/01/10 14:42:54 14:42:54 247 Chapter The internal lightning protection system