Lightning protection guide by OBO

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Last revision 2020

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

Strana 46 z 288

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Lightning thread data: • Frequency lightning strikes region • Equivalent interception area Possible damage: • Injury death people • Unacceptable failure services • Loss irreplaceable cultural treasures • Financial loss 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 46 Chapter General introduction .7. The greater the risk lightning strike and the likely damage, the more effective must the design the lightning pro- tection system.3 Estimation the damage risk The damage risk assessed using the lightning threat data and the possible damage.L 4000m AI HJ ADJ LJ WJ L 40m AL H L W AD 3H 500m AM Length the building structure Width the building structure Height the building structure Equivalent interception area the building structure Equivalent interception area couplings due electro- magnetic effect (building) Equivalent interception area supply lines Equivalent interception area couplings due electro- magnetic effect (line) Equivalent interception area for indirect lightning strikes The equivalent interception area for indirect lightning strikes circle with radius 500 around the base the building and area extending 2,000 m either side the supply line. 1