Data and information technology - OBO Bettermann
Data and information technology - OBO Bettermann
Data and information technology - OBO Bettermann
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Causes of surgesSwitching surges in the low-voltagesystemSwitching surges are caused byswitch-on <strong>and</strong> switch-off operations,by switching inductive <strong>and</strong>capacitive loads <strong>and</strong> by interruptingshort-circuit currents. Particularlywhen production plants, lightingsystems or transformers areswitched off, electrical equipmentlocated in close proximity can bedamaged.Planning aid, general<strong>information</strong>Threat value: Several kA (8/20)Coupling of surges through localor remote lightning strikeEven if lightning protection <strong>and</strong>surge protection measures are alreadyinstalled: A local lightningstrike creates additional high magneticfields, which in turn inducehigh voltage peaks in line systems.Inductive or galvanic coupling cancause damage within a radius ofup to 2 km around the lightningimpact point.Threat value: Several kA (8/20)02 TBS-Katalog_2010_Neuer_St<strong>and</strong> / en / 30/03/2010 (LLExport_00986)TBS<strong>OBO</strong>13
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