Lightning protection guide by OBO

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Last revision 2020

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

Strana 80 z 288

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16: Required number OBO concrete blocks accordance with 1991-1-4 and 1991-3-1 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 80 Chapter The external lightning protection system . Number concrete blocks for isFang air-termination rods Wind zone 2 Reference height metres 75 Terrain category - Terrain category - Terrain category III - Terrain category 15 Table 2. 5402880) with isFang tripod stand (item no. In wind zone with reference height m, and 800 above sea level, for example, the number concrete blocks can reduced just 6 (2 concrete blocks per bracket). 5408967).Wind loads and the isFang air-termination rod Table 2.16 shows the influence wind zone, refer- ence height and terrain category the aluminium isFang air-termination rod (item no