Lightning protection guide by OBO

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Last revision 2020

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

Strana 177 z 288

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1. For installations under special environmental condi- tions, e.1 Equipotential bonding systems Correct use equipotential bonding systems pre- vents dangerous touch voltages between system com- ponents. potentially explosive areas, where explicit normative requirements apply, additional protective equipotential bonding must implemented. achieved using surge protection devices to create additional equipotential bonding system for all supply lines the low-voltage system and in- formation technology. The bodies all fixed (non-portable) equipment the immediate vicinity the place installation that can be touched the same time must connected with all extraneous conductive parts that can touched at the same time. This includes the functional equipoten- tial bonding cable per DIN 18014 and the metal main reinforcement reinforced concrete. • Metal cable shields Additional protective equipotential bonding The lightning protection equipotential bonding an extension the general protective equipotential bond- ing.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 3. 3. Connection all extraneous conductive parts the main earthing busbar (MEB) • Foundation earth electrodes • Lightning protection earthing • Conductor for protective equipotential bonding • Protective conductors within the electrical system • Metallic water, gas and heating lines • Antenna earthing • Metal parts the building, e. Protective equipotential bonding All extraneous conductive parts routed into the build- ing must connected with one another order to prevent differences potential. air-conditioning ducts, lift guide rails, etc.g.1 Planning methods To avoid potential differences, the following system components must connected, via the main earthing busbar, with equipotential bonding cables accord- ance with IEC 60364-5-54: • Electrically conductive pipelines • Other conductive components • Protective conductors • Functional earth electrodes TBS Blitzschutz-Leitfaden 2018 / en / 2020/01/10 14:42:40 14:42:40 (LLExport_02613) / 2020/01/10 14:42:54 14:42:54 177 Chapter The internal lightning protection system .g. Normative requirements for equipotential bonding: • IEC 60364-4-41 Equipotential bonding • IEC 60364-5-54 Protective equipotential bonding cable • IEC 60364-7-701 Bathroom • IEC 60364-7-702 Swimming pools • IEC 60364-7-705 Agriculture • IEC 61784 Telecommunication systems • IEC 60728-11 Antenna earthing • IEC 62305 Lightning protection equipotential bonding • DIN 18014 (foundation earthers) Lightning protec- tion equipotential bonding A distinction drawn between “protective equipotential bonding” and “additional protective equi- potential bonding”