Lightning protection guide by OBO

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Last revision 2020

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

Strana 184 z 288

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• Economic, easy plan individual protection concept for new and old buildings and reconstruc- tions.3. The lightning protection zone concept based the principle gradually reducing surges safe level before they reach ter- minals and cause damage.2.3. LPZ A Unprotected zone outside the building.1 Lightning protection zone concept The lightning protection zone (LPZ) concept described in the international standard IEC 62305-4 has proved to practical and efficient. Metal parts are connected directly the equipotential bonding, while surge pro- tection corresponding the relevant requirements class (type installed between the active conductors and the earth potential. • Local equipotential bonding within the protection zone. shielding against LEMP LPZ Zone inside the building. A zone area building section which all equipment requires the same level protection. Low partial lightning energies possible LPZ Zone inside the building. order achieve this, a building's entire energy network split into lightning protection zones. Metallic parts are connected to the equipotential bonding directly. Low surges possible LPZ 3 Zone inside the building (can also the metal housing consumer) interference pulses through LEMP surges Division the building into lightning protection zones (LPZ) TBS Blitzschutz-Leitfaden 2018 / en / 2020/01/10 14:42:40 14:42:40 (LLExport_02613) / 2020/01/10 14:42:54 14:42:54 184 Chapter The internal lightning protection system . • Reduction malfunctions due magnetic fields. Equi- potential bonding created each transition from one zone another. Equipotential bonding created each transition from one zone another. Direct lightning strike, shielding against electromagnetic interfer- ence pulses LEMP (Lightning Electromagnetic Pulse) LPZ Zone protected external lightning protection system. Benefits the lightning protection zone concept • Minimisation the surge voltage couplings into other cable systems arresting the energy-rich, dangerous lightning currents directly the building entry point and the cable’s point transition between zones