Lightning protection guide by OBO

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Last revision 2020

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

Strana 62 z 288

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46 0.68 1.04 0.02 0.63 0.05 10 0.72 1.10 0.1, calculate the penetration depth use the following formula: Formula for calculating the penetration depth Penetration depth Radius rolling sphere Distance Air-termination sys- tem Penetration (p) the rolling sphere between the air-termination rods Distance air- termination system (d) m Penetration depth, light- ning protection class I, rolling sphere: m Penetration depth, light- ning protection class II, rolling sphere: m Penetration depth, light- ning protection class III, rolling sphere: m Penetration depth, light- ning protection class IV, rolling sphere: m 2 0.47 20 2.Protecting roof structures using multiple air-termin- ation rods If you use several air-termination rods protect an object, you must take into consideration the penetra- tion depth between them.06 0.42 0.01 3 0.28 0.04 5 0.64 0.1: Penetration depth (p) according the lightning protection class according IEC 62305 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 62 Chapter The external lightning protection system .03 0.07 0.84 Table 2.07 0.03 0.96 0.16 0.01 0.04 0. For brief overview see Table 2.21 15 1.10 0.02 4 0.13 0