Lightning protection guide by OBO

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Last revision 2020

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

Strana 168 z 288

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U B1 U B2 U E U S FE FE SE + 1m UE : Earthing voltage UB1 : Touch voltage without potential control (on founda- tion earth electrode) UB2 : Touch voltage with potential control (foundation earth electrode and control earther) Us : Step voltage (without control earther) φ: Earth surface potential FE: Foundation earth electrode SE: Control earth electrode (ring earth electrode) Electrical potential the earth surface and voltages current passes through the foundation earth electrode (FE) and control earther (SE) TBS Blitzschutz-Leitfaden 2018 / en / 2020/01/10 14:42:40 14:42:40 (LLExport_02613) / 2020/01/10 14:42:54 14:42:54 168 Chapter The external lightning protection system . This is particularly required areas with groups people. Both types voltage can harm- ful the body.2/50 μs) rain and fulfils the requirements for touch protection according IEC/EN 62305-3. The isCon® conductor Pro+ was tested a length max.1 Step voltage The step voltage the voltage between person’s feet placed apart.g. 100 kV (1. the conductor) and earth potential. Here the current flows between the person's feet through their body. Here the current flows from the hand the foot through the body. 2.2.6. These voltages need reduced via potential control insulation.6.2 Protection against dangerous touch voltage The isCon® conductor Pro+ can used as protection against dangerous touch voltage. with pulse voltage min. The contact voltage the voltage between component (e