Lightning protection guide by OBO

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Last revision 2020

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

Strana 191 z 288

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g. DIN VDE 0100- 443 describes surge voltages from atmospheric influ- ences impacts switching actions. In addition, DIN VDE 0100-443 recommends the use of surge arrestors for interfaces. household appliances, com- puters, tools, etc. What now obligatory according DIN VDE 0100-443? Answer: DIN VDE 0100-443 prescribes surge ar- restors front resources surge voltage category I and II. Must new systems those erected later date protected? Answer: system must erected according to DIN VDE 0100-712. Must additional measures taken against surge voltages the case terminals sub-distributors which are cable length more than metres from the last surge arrestor? Answer: The measures for sensitive terminals sub- distributors which are cable length more than 10 from the last surge arrestor should agreed individually between the installation engineer and the client. Which arrestors should used? Answer: protection against lightning impacts and switched surge voltages, which ingress into the sys- tem via the supply line, type SPDs must installed at the feed point/building entry." Summary: Surge protection pre- ventive fire protection! TBS Blitzschutz-Leitfaden 2018 / en / 2020/01/10 14:42:40 14:42:40 (LLExport_02613) / 2020/01/10 14:42:54 14:42:54 191 Chapter The internal lightning protection system . According Supplement DIN VDE 0185-305-3, surge protection the side also necessary. If, within building, switching surge voltages are generated and cables leave the building, then there the necessity checking further measures and documenting the result.). 2. necessary erect the surge protection the side according DIN VDE 0100-443 and check for and communications technology. 4. Quote from VDE 0100-443: "The erection surge protection devices (SPDs) should ensure a voltage limitation according the insulation coordination, order to avoid dangerous spark formation and resulting fires. housing, terminals with this rated surge voltage are used (e. In the case outdoor line infeed lightning protection system according VDE 0185-305, type 1 SPDs should used for lightning protection equipo- tential bonding.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 Questions about DIN VDE 0100-443/-534 1. 3